[Gluster-devel] Crash in glusterfs!!!

[Sanju Rakonde]

Hi Abhishek,

Can you please share the output of "t a a bt" with us?

Thanks,
Sanju

On Fri, Sep 21, 2018 at 2:55 PM, ABHISHEK PALIWAL <abhishpaliwal at gmail.com>
wrote:

>
> We have seen a SIGSEGV crash on glusterfs process on kernel restart at
> start up.
>
> (gdb) bt
> #0  0x00003fffad4463b0 in _IO_unbuffer_all () at genops.c:960
> #1  _IO_cleanup () at genops.c:1020
> #2  0x00003fffad400d00 in __run_exit_handlers (status=<optimized out>,
> listp=<optimized out>, run_list_atexit=run_list_atexit at entry=true) at
> exit.c:95
> #3  0x00003fffad400e1c in __GI_exit (status=<optimized out>) at exit.c:104
> #4  0x000000001000984c in cleanup_and_exit (signum=<optimized out>) at
> glusterfsd.c:1295
> #5  0x0000000010009a64 in *glusterfs_sigwaiter *(arg=<optimized out>) at
> glusterfsd.c:2016
> #6  0x00003fffad57db30 in start_thread (arg=0x3fffab302160) at
> pthread_create.c:462
> #7  0x00003fffad4c7cdc in .__clone () at ../sysdeps/unix/sysv/linux/
> powerpc/powerpc64/clone.S:96
>
> (gdb) bt full
> #0  0x00003fffad4463b0 in _IO_unbuffer_all () at genops.c:960
>     __result = 0
>     __self = 0x3fffab302160
>     cnt = 1
>     fp = 0x3fffa4001f00
> #1  _IO_cleanup () at genops.c:1020
>     result = 0
> #2  0x00003fffad400d00 in __run_exit_handlers (status=<optimized out>,
> listp=<optimized out>, run_list_atexit=run_list_atexit at entry=true) at
> exit.c:95
>     ptr = 0x3fffad557000 <__elf_set___libc_atexit_element__IO_cleanup__>
> #3  0x00003fffad400e1c in __GI_exit (status=<optimized out>) at exit.c:104
> No locals.
> #4  0x000000001000984c in cleanup_and_exit (signum=<optimized out>) at
> glusterfsd.c:1295
>     ctx = <optimized out>
>     trav = <optimized out>
>     __FUNCTION__ = <error reading variable __FUNCTION__ (Cannot access
> memory at address 0x10010e38)>
> #5  0x0000000010009a64 in glusterfs_sigwaiter (arg=<optimized out>) at
> glusterfsd.c:2016
>     set = {__val = {18947, 0 <repeats 15 times>}}
>     ret = <optimized out>
>     sig = 15
> #6  0x00003fffad57db30 in start_thread (arg=0x3fffab302160) at
> pthread_create.c:462
>     pd = 0x3fffab302160
>     now = <optimized out>
>     unwind_buf = {cancel_jmp_buf = {{jmp_buf = {5451414826039278896,
> 70367357615104, 5451414826003312788, 0, 0, 70367312883712, 70367321268768,
> 8388608,
>             70367357575200, 70367913735952, 268595776, 70367357600728,
> 268588656, 3, 0, 70367357600744, 70367913735600, 70367913735656, 4001536,
>             70367357576216, 70367321265984, -3187653564, 0 <repeats 42
> times>}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data =
> {prev = 0x0,
>           cleanup = 0x0, canceltype = 0}}}
>     not_first_call = <optimized out>
>     pagesize_m1 = <optimized out>
>     sp = <optimized out>
>     freesize = <optimized out>
>     __PRETTY_FUNCTION__ = "start_thread"
> ---Type <return> to continue, or q <return> to quit---
> #7  0x00003fffad4c7cdc in .__clone () at ../sysdeps/unix/sysv/linux/
> powerpc/powerpc64/clone.S:96
> No locals
>
> *Can you please help us in finding the cause for SIGSEGV. ?*
> *Also please share your understanding on this issue.*
> --
> Regards
> Abhishek Paliwal
>
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>



-- 
Thanks,
Sanju
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