diff options
Diffstat (limited to '')
| -rw-r--r-- | results/classifier/gemma3:12b/debug/1671 | 1358 | ||||
| -rw-r--r-- | results/classifier/gemma3:12b/debug/1671876 | 69 |
2 files changed, 1427 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/debug/1671 b/results/classifier/gemma3:12b/debug/1671 new file mode 100644 index 000000000..427c4a55f --- /dev/null +++ b/results/classifier/gemma3:12b/debug/1671 @@ -0,0 +1,1358 @@ + +segfault/errors in gdbstub with linux userspace emulator (qemu-riscv64), from racy behavior with singal handler? +Description of problem: +Often, qemu segfaults, sometimes GDB just spits out a wall of "Ignoring packet error, continuing..." and ~hangs: I don't get a GDB command prompt quickly, if at all, and when I ctrl-c I see "The target is not responding to GDB commands. Stop debugging it? (y or n)". +Steps to reproduce: +1. Run the `testb3` binary from below as described +2. Connect via GDB and `continue` +3. Multiple threads (independently) SIGABRT themselves when they fail their test(s), which happens quickly on my machine (which has 16 physical cores) +Additional information: +From the coredump, it looks like there's a lot of cooks in the gdbstub kitchen: + +``` + Id Target Id Frame +* 1 Thread 0x7febc02ef6c0 (LWP 3922802) gdb_next_attached_cpu () at ../qemu-8.0.0/gdbstub/gdbstub.c:282 + 2 Thread 0x7febc06db6c0 (LWP 3922792) safe_syscall_base () + at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 + 3 Thread 0x7febc03b26c0 (LWP 3922799) 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 + 4 Thread 0x7febc0f5d6c0 (LWP 3922751) 0x00007febc16e80dd in syscall () from /usr/lib/libc.so.6 + 5 Thread 0x7febc0f5ebc0 (LWP 3922750) safe_syscall_base () + at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 + 6 Thread 0x7febc01696c0 (LWP 3922808) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 7 Thread 0x7febc04f76c0 (LWP 3922794) 0x00007febc16f1d4c in send () from /usr/lib/libc.so.6 + 8 Thread 0x7febc026d6c0 (LWP 3922804) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 9 Thread 0x7febc01aa6c0 (LWP 3922807) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 10 Thread 0x7febc075c6c0 (LWP 3922793) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 11 Thread 0x7febc04756c0 (LWP 3922796) 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 + 12 Thread 0x7febc01eb6c0 (LWP 3922806) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 13 Thread 0x7febc022c6c0 (LWP 3922805) 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 + 14 Thread 0x7febc03f36c0 (LWP 3922798) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 15 Thread 0x7febc04346c0 (LWP 3922797) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 16 Thread 0x7febc03716c0 (LWP 3922800) 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 + 17 Thread 0x7febc04b66c0 (LWP 3922795) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 18 Thread 0x7febc02ae6c0 (LWP 3922803) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 + 19 Thread 0x7febc03306c0 (LWP 3922801) 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +``` + +Each of those `read` and `send` threads look something similar to this one: + +``` +Thread 19 (Thread 0x7febc03306c0 (LWP 3922801)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +``` + +Which, at a guess, seems like there's maybe 20 different concurrent processes fighting over the singular [gdbstub state](https://gitlab.com/qemu-project/qemu/-/blob/master/gdbstub/gdbstub.c#L57)? Specifically, they're all stomping on each other by writing to the same [buffer](https://gitlab.com/qemu-project/qemu/-/blob/master/gdbstub/user.c#L136) and advancing the [current CPU list pointer](https://gitlab.com/qemu-project/qemu/-/blob/master/gdbstub/gdbstub.c#L1422), which causes the "bad packet" cross-talk and the segfault respectively. + +<details><summary>full backtrace</summary> + +``` +(gdb) thread apply all bt full + +Thread 19 (Thread 0x7febc03306c0 (LWP 3922801)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 18 (Thread 0x7febc02ae6c0 (LWP 3922803)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 17 (Thread 0x7febc04b66c0 (LWP 3922795)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 16 (Thread 0x7febc03716c0 (LWP 3922800)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 15 (Thread 0x7febc04346c0 (LWP 3922797)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 14 (Thread 0x7febc03f36c0 (LWP 3922798)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 13 (Thread 0x7febc022c6c0 (LWP 3922805)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 12 (Thread 0x7febc01eb6c0 (LWP 3922806)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 11 (Thread 0x7febc04756c0 (LWP 3922796)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 10 (Thread 0x7febc075c6c0 (LWP 3922793)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 9 (Thread 0x7febc01aa6c0 (LWP 3922807)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 8 (Thread 0x7febc026d6c0 (LWP 3922804)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 7 (Thread 0x7febc04f76c0 (LWP 3922794)): +#0 0x00007febc16f1d4c in send () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a994a in gdb_put_buffer () at ../qemu-8.0.0/gdbstub/user.c:82 +No locals. +#2 0x00005582273aad23 in gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:161 +No locals. +#3 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#4 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#5 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#6 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#7 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#8 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#9 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#10 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#11 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#12 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#13 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#14 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#15 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#16 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#17 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#18 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 6 (Thread 0x7febc01696c0 (LWP 3922808)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 5 (Thread 0x7febc0f5ebc0 (LWP 3922750)): +#0 safe_syscall_base () at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 +No locals. +#1 0x00005582274134c2 in safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:678 +No locals. +#2 do_safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:7804 +No locals. +#3 do_futex () at ../qemu-8.0.0/linux-user/syscall.c:7891 +No locals. +#4 0x00005582274191fa in do_syscall1.constprop.0 () at ../qemu-8.0.0/linux-user/syscall.c:12476 +No locals. +#5 0x00005582273a2a22 in do_syscall () at ../qemu-8.0.0/linux-user/syscall.c:13375 +No locals. +#6 0x000055822729644c in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:55 +No locals. +#7 0x000055822728bfa1 in main () at ../qemu-8.0.0/linux-user/main.c:962 +No locals. + +Thread 4 (Thread 0x7febc0f5d6c0 (LWP 3922751)): +#0 0x00007febc16e80dd in syscall () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273cdcb3 in qemu_futex_wait () at /usr/src/debug/qemu/qemu-8.0.0/include/qemu/futex.h:29 +No locals. +#2 qemu_event_wait () at ../qemu-8.0.0/util/qemu-thread-posix.c:464 +No locals. +#3 0x00005582273d83ad in call_rcu_thread () at ../qemu-8.0.0/util/rcu.c:261 +No locals. +#4 0x00005582273cde58 in qemu_thread_start () at ../qemu-8.0.0/util/qemu-thread-posix.c:541 +No locals. +#5 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#6 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 3 (Thread 0x7febc03b26c0 (LWP 3922799)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 2 (Thread 0x7febc06db6c0 (LWP 3922792)): +#0 safe_syscall_base () at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 +No locals. +#1 0x00005582274134c2 in safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:678 +No locals. +#2 do_safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:7804 +No locals. +#3 do_futex () at ../qemu-8.0.0/linux-user/syscall.c:7891 +No locals. +#4 0x00005582274191fa in do_syscall1.constprop.0 () at ../qemu-8.0.0/linux-user/syscall.c:12476 +No locals. +#5 0x00005582273a2a22 in do_syscall () at ../qemu-8.0.0/linux-user/syscall.c:13375 +No locals. +#6 0x000055822729644c in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:55 +No locals. +#7 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#8 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#9 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 1 (Thread 0x7febc02ef6c0 (LWP 3922802)): +#0 gdb_next_attached_cpu () at ../qemu-8.0.0/gdbstub/gdbstub.c:282 +No locals. +#1 0x00005582273ab774 in handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1411 +No locals. +#2 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#3 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#4 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#5 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#6 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#7 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#8 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#9 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#10 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#11 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#12 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#13 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#14 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#15 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +(gdb) thread apply all bt + +Thread 19 (Thread 0x7febc03306c0 (LWP 3922801)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 18 (Thread 0x7febc02ae6c0 (LWP 3922803)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 17 (Thread 0x7febc04b66c0 (LWP 3922795)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 16 (Thread 0x7febc03716c0 (LWP 3922800)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 15 (Thread 0x7febc04346c0 (LWP 3922797)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 14 (Thread 0x7febc03f36c0 (LWP 3922798)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 13 (Thread 0x7febc022c6c0 (LWP 3922805)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 12 (Thread 0x7febc01eb6c0 (LWP 3922806)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 11 (Thread 0x7febc04756c0 (LWP 3922796)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 10 (Thread 0x7febc075c6c0 (LWP 3922793)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 9 (Thread 0x7febc01aa6c0 (LWP 3922807)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 8 (Thread 0x7febc026d6c0 (LWP 3922804)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 7 (Thread 0x7febc04f76c0 (LWP 3922794)): +#0 0x00007febc16f1d4c in send () from /usr/lib/libc.so.6 +#1 0x00005582273a994a in gdb_put_buffer () at ../qemu-8.0.0/gdbstub/user.c:82 +#2 0x00005582273aad23 in gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:161 +#3 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +#4 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +#5 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#6 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +#7 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +#8 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#9 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +#10 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +#11 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +#12 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +#13 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#14 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#15 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#16 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#17 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#18 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 6 (Thread 0x7febc01696c0 (LWP 3922808)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 5 (Thread 0x7febc0f5ebc0 (LWP 3922750)): +#0 safe_syscall_base () at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 +#1 0x00005582274134c2 in safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:678 +#2 do_safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:7804 +#3 do_futex () at ../qemu-8.0.0/linux-user/syscall.c:7891 +#4 0x00005582274191fa in do_syscall1.constprop.0 () at ../qemu-8.0.0/linux-user/syscall.c:12476 +#5 0x00005582273a2a22 in do_syscall () at ../qemu-8.0.0/linux-user/syscall.c:13375 +#6 0x000055822729644c in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:55 +#7 0x000055822728bfa1 in main () at ../qemu-8.0.0/linux-user/main.c:962 + +Thread 4 (Thread 0x7febc0f5d6c0 (LWP 3922751)): +#0 0x00007febc16e80dd in syscall () from /usr/lib/libc.so.6 +#1 0x00005582273cdcb3 in qemu_futex_wait () at /usr/src/debug/qemu/qemu-8.0.0/include/qemu/futex.h:29 +#2 qemu_event_wait () at ../qemu-8.0.0/util/qemu-thread-posix.c:464 +#3 0x00005582273d83ad in call_rcu_thread () at ../qemu-8.0.0/util/rcu.c:261 +#4 0x00005582273cde58 in qemu_thread_start () at ../qemu-8.0.0/util/qemu-thread-posix.c:541 +#5 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#6 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 3 (Thread 0x7febc03b26c0 (LWP 3922799)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 2 (Thread 0x7febc06db6c0 (LWP 3922792)): +#0 safe_syscall_base () at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 +#1 0x00005582274134c2 in safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:678 +#2 do_safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:7804 +#3 do_futex () at ../qemu-8.0.0/linux-user/syscall.c:7891 +#4 0x00005582274191fa in do_syscall1.constprop.0 () at ../qemu-8.0.0/linux-user/syscall.c:12476 +#5 0x00005582273a2a22 in do_syscall () at ../qemu-8.0.0/linux-user/syscall.c:13375 +#6 0x000055822729644c in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:55 +#7 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#8 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#9 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 + +Thread 1 (Thread 0x7febc02ef6c0 (LWP 3922802)): +#0 gdb_next_attached_cpu () at ../qemu-8.0.0/gdbstub/gdbstub.c:282 +#1 0x00005582273ab774 in handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1411 +#2 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#3 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +#4 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +#5 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +#6 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +#7 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +#8 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +#9 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +#10 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +#11 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +#12 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +#13 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +#14 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +#15 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +(gdb) thread apply all bt full + +Thread 19 (Thread 0x7febc03306c0 (LWP 3922801)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 18 (Thread 0x7febc02ae6c0 (LWP 3922803)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 17 (Thread 0x7febc04b66c0 (LWP 3922795)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 16 (Thread 0x7febc03716c0 (LWP 3922800)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 15 (Thread 0x7febc04346c0 (LWP 3922797)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 14 (Thread 0x7febc03f36c0 (LWP 3922798)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 13 (Thread 0x7febc022c6c0 (LWP 3922805)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 12 (Thread 0x7febc01eb6c0 (LWP 3922806)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 11 (Thread 0x7febc04756c0 (LWP 3922796)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 10 (Thread 0x7febc075c6c0 (LWP 3922793)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 9 (Thread 0x7febc01aa6c0 (LWP 3922807)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 8 (Thread 0x7febc026d6c0 (LWP 3922804)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 7 (Thread 0x7febc04f76c0 (LWP 3922794)): +#0 0x00007febc16f1d4c in send () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a994a in gdb_put_buffer () at ../qemu-8.0.0/gdbstub/user.c:82 +No locals. +#2 0x00005582273aad23 in gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:161 +No locals. +#3 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#4 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#5 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#6 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#7 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#8 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#9 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#10 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#11 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#12 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#13 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#14 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#15 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#16 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#17 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#18 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 6 (Thread 0x7febc01696c0 (LWP 3922808)): +#0 0x00007febc16de96c in read () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273ae6ce in read () at /usr/include/bits/unistd.h:38 +No locals. +#2 gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:148 +No locals. +#3 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#4 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#5 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#6 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#7 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#8 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 5 (Thread 0x7febc0f5ebc0 (LWP 3922750)): +#0 safe_syscall_base () at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 +No locals. +#1 0x00005582274134c2 in safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:678 +No locals. +#2 do_safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:7804 +No locals. +#3 do_futex () at ../qemu-8.0.0/linux-user/syscall.c:7891 +No locals. +#4 0x00005582274191fa in do_syscall1.constprop.0 () at ../qemu-8.0.0/linux-user/syscall.c:12476 +No locals. +#5 0x00005582273a2a22 in do_syscall () at ../qemu-8.0.0/linux-user/syscall.c:13375 +No locals. +#6 0x000055822729644c in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:55 +No locals. +#7 0x000055822728bfa1 in main () at ../qemu-8.0.0/linux-user/main.c:962 +No locals. + +Thread 4 (Thread 0x7febc0f5d6c0 (LWP 3922751)): +#0 0x00007febc16e80dd in syscall () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273cdcb3 in qemu_futex_wait () at /usr/src/debug/qemu/qemu-8.0.0/include/qemu/futex.h:29 +No locals. +#2 qemu_event_wait () at ../qemu-8.0.0/util/qemu-thread-posix.c:464 +No locals. +#3 0x00005582273d83ad in call_rcu_thread () at ../qemu-8.0.0/util/rcu.c:261 +No locals. +#4 0x00005582273cde58 in qemu_thread_start () at ../qemu-8.0.0/util/qemu-thread-posix.c:541 +No locals. +#5 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#6 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 3 (Thread 0x7febc03b26c0 (LWP 3922799)): +#0 0x00007febc16f1b1c in recv () from /usr/lib/libc.so.6 +No symbol table info available. +#1 0x00005582273a9882 in recv () at /usr/include/bits/socket2.h:38 +No locals. +#2 gdb_get_char () at ../qemu-8.0.0/gdbstub/user.c:39 +No locals. +#3 0x00005582273aad28 in gdb_got_immediate_ack () at ../qemu-8.0.0/gdbstub/user.c:62 +No locals. +#4 gdb_put_packet_binary () at ../qemu-8.0.0/gdbstub/gdbstub.c:164 +No locals. +#5 0x00005582273ab768 in gdb_put_strbuf () at ../qemu-8.0.0/gdbstub/gdbstub.c:181 +No locals. +#6 handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1410 +No locals. +#7 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#8 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#9 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#10 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#11 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#12 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#13 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#14 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#15 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#16 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#17 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#18 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#19 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#20 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 2 (Thread 0x7febc06db6c0 (LWP 3922792)): +#0 safe_syscall_base () at ../qemu-8.0.0/common-user/host/x86_64/safe-syscall.inc.S:75 +No locals. +#1 0x00005582274134c2 in safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:678 +No locals. +#2 do_safe_futex () at ../qemu-8.0.0/linux-user/syscall.c:7804 +No locals. +#3 do_futex () at ../qemu-8.0.0/linux-user/syscall.c:7891 +No locals. +#4 0x00005582274191fa in do_syscall1.constprop.0 () at ../qemu-8.0.0/linux-user/syscall.c:12476 +No locals. +#5 0x00005582273a2a22 in do_syscall () at ../qemu-8.0.0/linux-user/syscall.c:13375 +No locals. +#6 0x000055822729644c in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:55 +No locals. +#7 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#8 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#9 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +Thread 1 (Thread 0x7febc02ef6c0 (LWP 3922802)): +#0 gdb_next_attached_cpu () at ../qemu-8.0.0/gdbstub/gdbstub.c:282 +No locals. +#1 0x00005582273ab774 in handle_query_threads () at ../qemu-8.0.0/gdbstub/gdbstub.c:1411 +No locals. +#2 0x000055822741cb78 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#3 0x00005582273abad6 in handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1673 +No locals. +#4 handle_gen_query () at ../qemu-8.0.0/gdbstub/gdbstub.c:1661 +No locals. +#5 0x000055822741cbb3 in process_string_cmd.constprop.0 () at ../qemu-8.0.0/gdbstub/gdbstub.c:838 +No locals. +#6 0x00005582273ae272 in run_cmd_parser () at ../qemu-8.0.0/gdbstub/gdbstub.c:856 +No locals. +#7 gdb_handle_packet () at ../qemu-8.0.0/gdbstub/gdbstub.c:1953 +No locals. +#8 gdb_read_byte () at ../qemu-8.0.0/gdbstub/gdbstub.c:2113 +No locals. +#9 0x00005582273ae6ec in gdb_handlesig () at ../qemu-8.0.0/gdbstub/user.c:153 +No locals. +#10 0x00005582273919fb in handle_pending_signal () at ../qemu-8.0.0/linux-user/signal.c:1042 +No locals. +#11 0x0000558227391dd2 in process_pending_signals () at ../qemu-8.0.0/linux-user/signal.c:1153 +No locals. +#12 0x00005582272964b8 in cpu_loop () at ../qemu-8.0.0/linux-user/riscv/cpu_loop.c:93 +No locals. +#13 0x00005582273a1d15 in clone_func () at ../qemu-8.0.0/linux-user/syscall.c:6621 +No locals. +#14 0x00007febc166dbb5 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. +#15 0x00007febc16efd90 in ?? () from /usr/lib/libc.so.6 +No symbol table info available. + +``` + +</details> + + + +- coredump + - [core.qemu-riscv64.1000.efb558e6104b4cc5bfa37605fc9af294.3922750.1685497956000000.zst](/uploads/071fc96520ca4008941044802c176d6a/core.qemu-riscv64.1000.efb558e6104b4cc5bfa37605fc9af294.3922750.1685497956000000.zst) + - [qemu-riscv64](/uploads/f203d5aed8559d80c2d66e439bb4dddf/qemu-riscv64) (the binary the coredump was generated from) + - download both, extract corefile, use `DEBUGINFOD_URLS=https://debuginfod.archlinux.org gdb /path/to/qemu-riscv64 -c /tmp/coredump` to debug +- reproducer + - [testb3.tar.xz](/uploads/84bdbb547e01527c3d804e0d88c6c9fe/testb3.tar.xz) (includes testb3 + sysroot to work with command line above) + - This binary is a cross-compiled `testb3` from [WebKit](https://github.com/WebKit/WebKit/blob/9755847ab1d40841374b2467b3036d943b723183/Source/JavaScriptCore/b3/testb3_1.cpp#L927) ; sorry, that's about all I know about it so far + - A GDB you might use to connect is [SiFive's](https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.1.0-2019.01.0-x86_64-linux-ubuntu14.tar.gz). I got more consistent segfaults with a more recent gdb (12.1), but I'm not sure how to tell you how to get that `gdb` besides "creating a riscv64 poky distribution" (what I did), which is likely not helpful. diff --git a/results/classifier/gemma3:12b/debug/1671876 b/results/classifier/gemma3:12b/debug/1671876 new file mode 100644 index 000000000..00351a29e --- /dev/null +++ b/results/classifier/gemma3:12b/debug/1671876 @@ -0,0 +1,69 @@ + +qemu 2.7.0 segfaults in qemu_co_queue_run_restart() + +I've been experiencing frequent segfaults lately with qemu 2.7.0 running Ubuntu 16.04 guests. The crash usually happens in qemu_co_queue_run_restart(). I haven't seen this so far with any other guests or distros. + +Here is one back trace I obtained from one of the crashing VMs. + +------------------------------------------------------------------------------------------------- +(gdb) bt +#0 qemu_co_queue_run_restart (co=0x7fba8ff05aa0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine-lock.c:59 +#1 0x000055c1656f39a9 in qemu_coroutine_enter (co=0x7fba8ff05aa0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine.c:119 +#2 0x000055c1656f3e74 in qemu_co_queue_run_restart (co=0x7fba8dd20430) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine-lock.c:60 +#3 0x000055c1656f39a9 in qemu_coroutine_enter (co=0x7fba8dd20430) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine.c:119 +#4 0x000055c1656f3e74 in qemu_co_queue_run_restart (co=0x7fba8dd14ea0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine-lock.c:60 +#5 0x000055c1656f39a9 in qemu_coroutine_enter (co=0x7fba8dd14ea0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine.c:119 +#6 0x000055c1656f3e74 in qemu_co_queue_run_restart (co=0x7fba80c11dc0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine-lock.c:60 +#7 0x000055c1656f39a9 in qemu_coroutine_enter (co=0x7fba80c11dc0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine.c:119 +#8 0x000055c1656f3e74 in qemu_co_queue_run_restart (co=0x7fba8dd0bd70) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine-lock.c:60 +#9 0x000055c1656f39a9 in qemu_coroutine_enter (co=0x7fba8dd0bd70) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine.c:119 +#10 0x000055c1656f3fa0 in qemu_co_enter_next (queue=queue@entry=0x55c1669e75e0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/util/qemu-coroutine-lock.c:106 +#11 0x000055c165692060 in timer_cb (blk=0x55c1669e7590, is_write=<optimized out>) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/block/throttle-groups.c:400 +#12 0x000055c16564f615 in timerlist_run_timers (timer_list=0x55c166a53e80) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/qemu-timer.c:528 +#13 0x000055c16564f679 in timerlistgroup_run_timers (tlg=tlg@entry=0x55c167c81cf8) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/qemu-timer.c:564 +#14 0x000055c16564ff47 in aio_dispatch (ctx=ctx@entry=0x55c167c81bb0) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/aio-posix.c:357 +#15 0x000055c1656500e8 in aio_poll (ctx=0x55c167c81bb0, blocking=<optimized out>) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/aio-posix.c:479 +#16 0x000055c1654b1c79 in iothread_run (opaque=0x55c167c81960) at /build/pb-qemu-pssKUp/pb-qemu-2.7.0/iothread.c:46 +#17 0x00007fbc4b64f0a4 in allocate_stack (stack=<synthetic pointer>, pdp=<synthetic pointer>, attr=0x0) at allocatestack.c:416 +#18 __pthread_create_2_1 (newthread=<error reading variable: Cannot access memory at address 0xffffffffffffff48>, attr=<error reading variable: Cannot access memory at address 0xffffffffffffff40>, + start_routine=<error reading variable: Cannot access memory at address 0xffffffffffffff58>, arg=<error reading variable: Cannot access memory at address 0xffffffffffffff50>) at pthread_create.c:539 +Backtrace stopped: Cannot access memory at address 0x8 +------------------------------------------------------------------------------------------------- + +The code that crashes is this +------------------------------------------------------------------------------------------------- +void qemu_co_queue_run_restart(Coroutine *co) +{ + Coroutine *next; + + trace_qemu_co_queue_run_restart(co); + while ((next = QSIMPLEQ_FIRST(&co->co_queue_wakeup))) { + QSIMPLEQ_REMOVE_HEAD(&co->co_queue_wakeup, co_queue_next); <--- Crash occurs here this time + qemu_coroutine_enter(next); + } +} +------------------------------------------------------------------------------------------------- + +Expanding the macro QSIMPLEQ_REMOVE_HEAD gives us +------------------------------------------------------------------------------------------------- +#define QSIMPLEQ_REMOVE_HEAD(head, field) do { \ + if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL)\ + (head)->sqh_last = &(head)->sqh_first; \ +} while (/*CONSTCOND*/0) +------------------------------------------------------------------------------------------------- + +which corrsponds to +------------------------------------------------------------------------------------------------- +if (((&co->co_queue_wakeup)->sqh_first = (&co->co_queue_wakeup)->sqh_first->co_queue_next.sqe_next) == NULL)\ + (&co->co_queue_wakeup)->sqh_last = &(&co->co_queue_wakeup)->sqh_first; +------------------------------------------------------------------------------------------------- + +Debugging the list we see +------------------------------------------------------------------------------------------------- +(gdb) print *(&co->co_queue_wakeup->sqh_first) +$6 = (struct Coroutine *) 0x1000 +(gdb) print *(&co->co_queue_wakeup->sqh_first->co_queue_next) +Cannot access memory at address 0x1030 +------------------------------------------------------------------------------------------------- + +So the data in co->co_queue_wakeup->sqh_first is corrupted and represents an invalid address. Any idea why is that? \ No newline at end of file |