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[Bug 949906] Gluster FS rebalance crashes in __lll_lock_elision with SIGILL
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 04 May 2016 16:46:20 +0000
  • Message-id: <bug-949906-21960-0NwSX1P2Db@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=949906
http://bugzilla.opensuse.org/show_bug.cgi?id=949906#c13

--- Comment #13 from Vitaliy Margolen <vitaliy@xxxxxxxxxxxx> ---
Not much more info really.
#0 0x00007fdf8793b0ab in _xbegin () at
../nptl/sysdeps/unix/sysv/linux/x86/hle.h:53
53 asm volatile (".byte 0xc7,0xf8 ; .long 0" : "+a" (ret) :: "memory");
(gdb) up
#1 __lll_lock_elision (futex=0x7fdedeffd700, adapt_count=0x7fdedeffd716,
private=0) at ../nptl/sysdeps/unix/sysv/linux/x86/elision-lock.c:56
56 if ((status = _xbegin()) == _XBEGIN_STARTED)
(gdb) up
#2 0x00007fdf876a4fc9 in inode_ref () from /usr/lib64/libglusterfs.so.0
0x00007fdf876a4fc4 <+20>: callq 0x7fdf8767b630 <pthread_mutex_lock@plt>
=> 0x00007fdf876a4fc9 <+25>: mov %rbx,%rdi

(gdb) disassemble 0x7fdf8767b630
Dump of assembler code for function pthread_mutex_lock@plt:
0x00007fdf8767b630 <+0>: jmpq *0x2a9bfa(%rip) # 0x7fdf87925230
<pthread_mutex_lock@xxxxxxx>
0x00007fdf8767b636 <+6>: pushq $0x243
0x00007fdf8767b63b <+11>: jmpq 0x7fdf876791f0
(gdb) disassemble 0x7fdf87925230
Dump of assembler code for function pthread_mutex_lock@xxxxxxx:
0x00007fdf87925230 <+0>: add %al,-0x6d(%rdx)
0x00007fdf87925233 <+3>: xchg %ebx,%edi
0x00007fdf87925235 <+5>: jg 0x7fdf87925237
<pthread_mutex_lock@xxxxxxx+7>
0x00007fdf87925237 <+7>: add %al,-0x4a(%rsi)

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