vm: *** stack smashing detected ***: terminated

[RobertBerger]

On a live arm32 system:

crash> help

*              files          mod            sbitmapq       union          
alias          foreach        mount          search         vm             
ascii          fuser          net            set            vtop           
bpf            gdb            p              sig            waitq          
bt             help           ps             struct         whatis         
btop           ipcs           pte            swap           wr             
dev            irq            ptob           sym            q              
dis            kmem           ptov           sys            
eval           list           rd             task           
exit           log            repeat         timer          
extend         mach           runq           tree           

crash version: 8.0.5    gdb version: 10.2
For help on any command above, enter "help <command>".
For help on input options, enter "help input".
For help on output options, enter "help output".

crash> vm
PID: 883      TASK: c3d2aa80  CPU: 0    COMMAND: "crash"
*** stack smashing detected ***: terminated
./03_run.sh: line 3:   883 Aborted                 crash --memory_device /dev/crash ./vmlinux -s

[RobertBerger]

Please note that this is crash version: 8.0.5 on a 6.12.x kernel, so it might not be supposed to work.

[RobertBerger]

I updated to crash 8.0.6 and was able to generate a core dump, which might help.
The debug info is from crash 8.0.5. Sorry for that.

crash> vm
PID: 858      TASK: c5d0d500  CPU: 1    COMMAND: "crash"
*** stack smashing detected ***: terminated
./03_run.sh: line 3:   858 Aborted                 (core dumped) crash --memory_device /dev/crash ./vmlinux -s

root@multi-v7-ml:/home/student/projects/elin-3.0/yocto-multi-v7-ml/elin-for-trainer/sandbox_work/65_crash# gdb --quiet crash core
Reading symbols from crash...

warning: the debug information found in "/usr/lib/debug//usr/bin/crash.debug" does not match "/usr/bin/crash" (CRC mismatch).
(No debugging symbols found in crash)
[New LWP 858]
[New LWP 867]
[New LWP 869]
[New LWP 868]
[New LWP 870]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
Core was generated by `crash --memory_device /dev/crash ./vmlinux -s'.
Program terminated with signal SIGABRT, Aborted.
#0  __libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47
47              pop     {r7, pc}
[Current thread is 1 (Thread 0xb6c14500 (LWP 858))]
(gdb) bt
#0  __libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47
#1  0xb6c75468 in __pthread_kill_implementation (threadid=<optimized out>, signo=6, no_tid=<optimized out>) at pthread_kill.c:43
#2  0xb6c4316e in __GI_raise (sig=sig@entry=6) at /usr/src/debug/glibc/2.40+git/sysdeps/posix/raise.c:26
#3  0xb6c34f9c in __GI_abort () at abort.c:79
#4  0xb6c6ce38 in __libc_message_impl (fmt=0xb6d13a50 "*** %s ***: terminated\n") at /usr/src/debug/glibc/2.40+git/sysdeps/posix/libc_fatal.c:132
#5  0xb6ccb098 in __GI___fortify_fail (msg=<optimized out>) at fortify_fail.c:24
#6  0xb6ccb86e in __stack_chk_fail () at stack_chk_fail.c:24
#7  0x00505220 in percpu_counter_sum_positive ()
#8  0x00512934 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)