diff options
Diffstat (limited to 'results/classifier/phi4:14b/output/manual-review/1704638')
| -rw-r--r-- | results/classifier/phi4:14b/output/manual-review/1704638 | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/results/classifier/phi4:14b/output/manual-review/1704638 b/results/classifier/phi4:14b/output/manual-review/1704638 new file mode 100644 index 000000000..97f7a9eb3 --- /dev/null +++ b/results/classifier/phi4:14b/output/manual-review/1704638 @@ -0,0 +1,68 @@ + + + +weak symbol access makes qemu in user mode hang for mips, mips64 + +A program that is statically linked and invokes a weak pointer should crash (because the weak pointer evaluates to NULL). + +With qemu in user mode, for mips and mips64, it hangs. The process needs to be killed with "kill -9". + +How to reproduce for mips: +- Compile the program: mips-linux-gnu-gcc-5 -O -Wall -static -o testpthsigmask-mips testpthsigmask.c -pthread +- Set environment variables for running qemu-mips. +- ~/inst-qemu/2.9.0/bin/qemu-mips testpthsigmask-mips + +How to reproduce for mips64: +- Compile the program: mips64-linux-gnuabi64-gcc-5 -O -Wall -static -o testpthsigmask-mips64 testpthsigmask.c -lpthread +- Set environment variables for running qemu-mips64. +- ~/inst-qemu/2.9.0/bin/qemu-mips64 testpthsigmask-mips64 + +When I attach gdb to the process, I see that it is hanging inside 'gen_intermediate_code': + +$ gdb /home/bruno/inst-qemu/2.9.0/bin/qemu-mips 9726 +... +Reading symbols from /home/bruno/inst-qemu/2.9.0/bin/qemu-mips...done. +Attaching to program: /home/bruno/inst-qemu/2.9.0/bin/qemu-mips, process 9726 +... +(gdb) info threads + Id Target Id Frame +* 1 Thread 0x7f1e7e535740 (LWP 9726) "qemu-mips" __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 + 2 Thread 0x7f1e7d0ad700 (LWP 9727) "qemu-mips" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 +(gdb) where +#0 __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 +#1 0x00007f1e7d6f1dbd in __GI___pthread_mutex_lock (mutex=mutex@entry=0x55de1c7ff830 <tcg_ctx+272>) at ../nptl/pthread_mutex_lock.c:80 +#2 0x000055de1c527199 in qemu_mutex_lock (mutex=mutex@entry=0x55de1c7ff830 <tcg_ctx+272>) + at /media/develdata/devel/build/qemu-2.9.0/util/qemu-thread-posix.c:60 +#3 0x000055de1c435083 in tb_lock () at /media/develdata/devel/build/qemu-2.9.0/translate-all.c:167 +#4 cpu_restore_state (cpu=cpu@entry=0x55de1e915cb0, retaddr=retaddr@entry=94412445741769) at /media/develdata/devel/build/qemu-2.9.0/translate-all.c:350 +#5 0x000055de1c4658d0 in handle_cpu_signal (old_set=0x7ffe5ffd8ea8, is_write=0, address=0, pc=94412445741767) + at /media/develdata/devel/build/qemu-2.9.0/user-exec.c:124 +#6 cpu_mips_signal_handler (host_signum=host_signum@entry=11, pinfo=pinfo@entry=0x7ffe5ffd8eb0, puc=puc@entry=0x7ffe5ffd8d80) + at /media/develdata/devel/build/qemu-2.9.0/user-exec.c:229 +#7 0x000055de1c4803be in host_signal_handler (host_signum=11, info=0x7ffe5ffd8eb0, puc=0x7ffe5ffd8d80) + at /media/develdata/devel/build/qemu-2.9.0/linux-user/signal.c:646 +#8 <signal handler called> +#9 __bswap_32 (__bsx=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/byteswap.h:47 +#10 bswap32 (x=<optimized out>) at /media/develdata/devel/build/qemu-2.9.0/include/qemu/bswap.h:21 +#11 ldl_be_p (ptr=<optimized out>) at /media/develdata/devel/build/qemu-2.9.0/include/qemu/bswap.h:434 +#12 cpu_ldl_code (env=0x55de1e91df48, ptr=0) at /media/develdata/devel/build/qemu-2.9.0/include/exec/cpu_ldst_useronly_template.h:68 +#13 gen_intermediate_code (env=env@entry=0x55de1e91df48, tb=tb@entry=0x7f1e7b288e58) + at /media/develdata/devel/build/qemu-2.9.0/target/mips/translate.c:19962 +#14 0x000055de1c4352e6 in tb_gen_code (cpu=cpu@entry=0x55de1e915cb0, pc=pc@entry=0, cs_base=cs_base@entry=0, flags=flags@entry=162, cflags=<optimized out>, + cflags@entry=0) at /media/develdata/devel/build/qemu-2.9.0/translate-all.c:1295 +#15 0x000055de1c436a7a in tb_find (tb_exit=0, last_tb=0x0, cpu=<optimized out>) at /media/develdata/devel/build/qemu-2.9.0/cpu-exec.c:365 +#16 cpu_exec (cpu=<optimized out>) at /media/develdata/devel/build/qemu-2.9.0/cpu-exec.c:673 +#17 0x000055de1c466278 in cpu_loop (env=0x55de1e91df48) at /media/develdata/devel/build/qemu-2.9.0/linux-user/main.c:2236 +#18 0x000055de1c433103 in main (argc=<optimized out>, argv=0x7ffe5ffd9de8, envp=<optimized out>) + at /media/develdata/devel/build/qemu-2.9.0/linux-user/main.c:4860 +(gdb) thread 2 +[Switching to thread 2 (Thread 0x7f1e7d0ad700 (LWP 9727))] +#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 +38 ../sysdeps/unix/sysv/linux/x86_64/syscall.S: Datei oder Verzeichnis nicht gefunden. +(gdb) where +#0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 +#1 0x000055de1c527605 in qemu_futex_wait (val=<optimized out>, f=<optimized out>) at /media/develdata/devel/build/qemu-2.9.0/include/qemu/futex.h:26 +#2 qemu_event_wait (ev=ev@entry=0x55de1e82c124 <rcu_call_ready_event>) at /media/develdata/devel/build/qemu-2.9.0/util/qemu-thread-posix.c:399 +#3 0x000055de1c52d41e in call_rcu_thread (opaque=<optimized out>) at /media/develdata/devel/build/qemu-2.9.0/util/rcu.c:249 +#4 0x00007f1e7d6ef6ba in start_thread (arg=0x7f1e7d0ad700) at pthread_create.c:333 +#5 0x00007f1e7d4253dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 \ No newline at end of file |