diff options
Diffstat (limited to 'results/scraper/launchpad-without-comments/1804323')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1804323 | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1804323 b/results/scraper/launchpad-without-comments/1804323 new file mode 100644 index 000000000..2187b5a69 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1804323 @@ -0,0 +1,121 @@ +qemu segfaults in virtio-scsi driver if underlying device returns -EIO + +Reported downstream in Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1650975 + +Using qemu from git and reasonably recent nbdkit, this command injects -EIO +errors into the block device which virtio-scsi is reading from: + +$ nbdkit --filter=error memory size=64M error-rate=100% \ + --run 'x86_64-softmmu/qemu-system-x86_64 -device virtio-scsi,id=scsi -drive file=$nbd,format=raw,id=hd0,if=none -device scsi-hd,drive=hd0' +nbdkit: memory[1]: error: injecting EIO error into pread +nbdkit: memory[1]: error: injecting EIO error into pread +qemu-system-x86_64: hw/scsi/scsi-bus.c:1374: scsi_req_complete: Assertion `req->status == -1' failed. + +The stack trace is: + +Thread 5 (Thread 0x7f33e1f8b700 (LWP 10474)): +#0 0x00007f33fe0bf371 in __GI___poll (fds=0x559b07199490, nfds=1, timeout=-1) + at ../sysdeps/unix/sysv/linux/poll.c:29 +#1 0x00007f34061df5e6 in () at /lib64/libglib-2.0.so.0 +#2 0x00007f34061df710 in g_main_context_iteration () + at /lib64/libglib-2.0.so.0 +#3 0x00007f34061df761 in () at /lib64/libglib-2.0.so.0 +#4 0x00007f34062086ea in () at /lib64/libglib-2.0.so.0 +#5 0x00007f33fe19b58e in start_thread (arg=<optimized out>) + at pthread_create.c:486 +#6 0x00007f33fe0ca593 in clone () + at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 + +Thread 4 (Thread 0x7f33e3fff700 (LWP 10473)): +#0 0x00007f33fe1a4a8d in __lll_lock_wait () + at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:103 +#1 0x00007f33fe19ddf8 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x559b054697a0 <qemu_global_mutex>) at ../nptl/pthread_mutex_lock.c:78 +#2 0x0000559b04f6b103 in qemu_mutex_lock_impl (mutex=0x559b054697a0 <qemu_global_mutex>, file=0x559b04f87041 "/home/rjones/d/qemu/exec.c", line=3197) + at util/qemu-thread-posix.c:66 +#3 0x0000559b04b722ee in qemu_mutex_lock_iothread_impl (file=file@entry=0x559b04f87041 "/home/rjones/d/qemu/exec.c", line=line@entry=3197) + at /home/rjones/d/qemu/cpus.c:1845 +#4 0x0000559b04b31859 in prepare_mmio_access (mr=<optimized out>, mr=<optimized out>) at /home/rjones/d/qemu/exec.c:3197 +#5 0x0000559b04b381d4 in address_space_ldub (as=<optimized out>, addr=<optimized out>, attrs=..., result=result@entry=0x0) + at /home/rjones/d/qemu/memory_ldst.inc.c:188 +#6 0x0000559b04c61cd0 in helper_inb (env=<optimized out>, port=<optimized out>) at /home/rjones/d/qemu/target/i386/cpu.h:1846 +#7 0x00007f33e889dc3e in code_gen_buffer () +#8 0x0000559b04bb3b87 in cpu_tb_exec (itb=<optimized out>, cpu=0x7f33e8876100 <code_gen_buffer+684243>) at /home/rjones/d/qemu/accel/tcg/cpu-exec.c:171 +#9 0x0000559b04bb3b87 in cpu_loop_exec_tb (tb_exit=<synthetic pointer>, last_tb=<synthetic pointer>, tb=<optimized out>, cpu=0x7f33e8876100 <code_gen_buffer+684243>) at /home/rjones/d/qemu/accel/tcg/cpu-exec.c:615 +#10 0x0000559b04bb3b87 in cpu_exec (cpu=cpu@entry=0x559b05db57a0) + at /home/rjones/d/qemu/accel/tcg/cpu-exec.c:725 +#11 0x0000559b04b7088f in tcg_cpu_exec (cpu=0x559b05db57a0) + at /home/rjones/d/qemu/cpus.c:1425 +#12 0x0000559b04b72c03 in qemu_tcg_cpu_thread_fn (arg=0x559b05db57a0) + at /home/rjones/d/qemu/cpus.c:1729 +#13 0x0000559b04b72c03 in qemu_tcg_cpu_thread_fn (arg=arg@entry=0x559b05db57a0) + at /home/rjones/d/qemu/cpus.c:1703 +#14 0x0000559b04f6afba in qemu_thread_start (args=<optimized out>) + at util/qemu-thread-posix.c:498 +#15 0x00007f33fe19b58e in start_thread (arg=<optimized out>) + at pthread_create.c:486 +#16 0x00007f33fe0ca593 in clone () + at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 + +Thread 3 (Thread 0x7f33e178a700 (LWP 10475)): +#0 0x00007f33fe0bf371 in __GI___poll (fds=0x559b071aa760, nfds=2, timeout=-1) + at ../sysdeps/unix/sysv/linux/poll.c:29 +#1 0x00007f34061df5e6 in () at /lib64/libglib-2.0.so.0 +#2 0x00007f34061df9a2 in g_main_loop_run () at /lib64/libglib-2.0.so.0 +#3 0x00007f34032ca90a in () at /lib64/libgio-2.0.so.0 +#4 0x00007f34062086ea in () at /lib64/libglib-2.0.so.0 +#5 0x00007f33fe19b58e in start_thread (arg=<optimized out>) + at pthread_create.c:486 +#6 0x00007f33fe0ca593 in clone () + at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 + +Thread 2 (Thread 0x7f33eb050700 (LWP 10471)): +#0 0x00007f33fe1a5400 in __GI___nanosleep (requested_time=0x7f33eb04d270, remaining=0x7f33eb04d280) at ../sysdeps/unix/sysv/linux/nanosleep.c:28 +#1 0x00007f3406209e17 in g_usleep () at /lib64/libglib-2.0.so.0 +#2 0x0000559b04f7cb80 in call_rcu_thread (opaque=opaque@entry=0x0) + at util/rcu.c:253 +#3 0x0000559b04f6afba in qemu_thread_start (args=<optimized out>) + at util/qemu-thread-posix.c:498 +#4 0x00007f33fe19b58e in start_thread (arg=<optimized out>) + at pthread_create.c:486 +#5 0x00007f33fe0ca593 in clone () + at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 + +Thread 1 (Thread 0x7f33eb9b42c0 (LWP 10470)): +#0 0x00007f33fe00553f in __GI_raise (sig=sig@entry=6) + at ../sysdeps/unix/sysv/linux/raise.c:50 +#1 0x00007f33fdfef895 in __GI_abort () at abort.c:79 +#2 0x00007f33fdfef769 in __assert_fail_base (fmt=0x7f33fe156ea8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x559b050203cf "req->status == -1", file=0x559b050203aa "hw/scsi/scsi-bus.c", line=1374, function=0x559b05020dc0 <__PRETTY_FUNCTION__.32414> "scsi_req_complete") at assert.c:92 +#3 0x00007f33fdffd9f6 in __GI___assert_fail (assertion=assertion@entry=0x559b050203cf "req->status == -1", file=file@entry=0x559b050203aa "hw/scsi/scsi-bus.c", line=line@entry=1374, function=function@entry=0x559b05020dc0 <__PRETTY_FUNCTION__.32414> "scsi_req_complete") at assert.c:101 +#4 0x0000559b04da23c0 in scsi_req_complete (req=<optimized out>, status=<optimized out>) at hw/scsi/scsi-bus.c:1374 +#5 0x0000559b04d9cc60 in scsi_dma_complete_noio (r=0x559b069c3600, ret=<optimized out>) at hw/scsi/scsi-disk.c:281 +#6 0x0000559b04d9cd0f in scsi_dma_complete (opaque=0x559b069c3600, ret=-5) + at hw/scsi/scsi-disk.c:302 +#7 0x0000559b04c91607 in dma_complete (ret=-5, dbs=0x559b07808000) + at dma-helpers.c:116 +#8 0x0000559b04c91607 in dma_blk_cb (opaque=0x559b07808000, ret=-5) + at dma-helpers.c:138 +#9 0x0000559b04ec411e in blk_aio_complete (acb=0x559b07514fa0) + at block/block-backend.c:1345 +#10 0x0000559b04f7e32b in coroutine_trampoline (i0=<optimized out>, i1=<optimized out>) at util/coroutine-ucontext.c:116 +#11 0x00007f33fe01b200 in __start_context () + at ../sysdeps/unix/sysv/linux/x86_64/__start_context.S:91 +#12 0x00007ffc0896b040 in () +#13 0x0000000000000000 in () + +I bisected this to: + +40dce4ee61c68395f6d463fae792f61b7c003bce is the first bad commit +commit 40dce4ee61c68395f6d463fae792f61b7c003bce +Author: Paolo Bonzini <email address hidden> +Date: Sat Oct 13 11:52:34 2018 +0200 + + scsi-disk: fix rerror/werror=ignore + + rerror=ignore was returning true from scsi_handle_rw_error but the callers were not + calling scsi_req_complete when rerror=ignore returns true (this is the correct thing + to do when true is returned after executing a passthrough command). Fix this by + calling it in scsi_handle_rw_error. + + Signed-off-by: Paolo Bonzini <email address hidden> + +:040000 040000 311386b9b91d77840a849459ab6ae41a37fd7f42 8adcda67d7487bcc18966f096c9923da3b8dc0b9 M hw \ No newline at end of file |