Description of problem:
Distribted replicate 2x2 setup. Quota enabled volume. Was running longetivity tests. glusterfs server crashed by trying to access the corrputed call_frame.

This is the backtrace of the core generated.

Loaded symbols for /lib64/libgcc_s.so.1
Core was generated by `/usr/local/sbin/glusterfsd --xlator-option mirror-server.listen-port=24009 -s l'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f946d313d3c in default_inodelk_cbk (frame=0x7f94588b37c0, cookie=0x7f94588b5000, this=0x7f94587599d8, op_ret=0, 
    op_errno=0) at ../../../libglusterfs/src/defaults.c:342
342             STACK_UNWIND_STRICT (inodelk, frame, op_ret, op_errno);
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.25.el6.x86_64 libgcc-4.4.6-3.el6.x86_64
(gdb)  bt
#0  0x00007f946d313d3c in default_inodelk_cbk (frame=0x7f94588b37c0, cookie=0x7f94588b5000, this=0x7f94587599d8, op_ret=0, 
    op_errno=0) at ../../../libglusterfs/src/defaults.c:342
#1  0x00007f9469eecd87 in grant_blocked_inode_locks (this=0xc0c7b0, pl_inode=0x7f945c0011c0, dom=0x7f945c001290)
    at ../../../../../xlators/features/locks/src/inodelk.c:361
#2  0x00007f9469eed61e in pl_inode_setlk (this=0xc0c7b0, pl_inode=0x7f945c0011c0, lock=0x7f945484c530, can_block=1, 
    dom=0x7f945c001290) at ../../../../../xlators/features/locks/src/inodelk.c:507
#3  0x00007f9469eedb75 in pl_common_inodelk (frame=0x7f946c4100f0, this=0xc0c7b0, volume=0xc0d8b0 "mirror-marker", 
    inode=0x7f9468880044, cmd=7, flock=0x7f944aae9a30, loc=0x7f9454821b10, fd=0x0)
    at ../../../../../xlators/features/locks/src/inodelk.c:619
#4  0x00007f9469eedea3 in pl_inodelk (frame=0x7f946c4100f0, this=0xc0c7b0, volume=0xc0d8b0 "mirror-marker", loc=0x7f9454821b10, 
    cmd=7, flock=0x7f944aae9a30) at ../../../../../xlators/features/locks/src/inodelk.c:662
#5  0x00007f946d31e012 in default_inodelk (frame=0x7f946c5b043c, this=0xc0d940, volume=0xc0d8b0 "mirror-marker", loc=0x7f9454821b10, 
    cmd=7, lock=0x7f944aae9a30) at ../../../libglusterfs/src/defaults.c:1060
#6  0x00007f9469aba52c in mq_release_parent_lock (frame=0x7f9454850078, cookie=0x7f946c3f3d4c, this=0xc0eb60, op_ret=0, op_errno=0)
    at ../../../../../xlators/features/marker/src/marker-quota.c:1386
#7  0x00007f9469cd3820 in iot_setxattr_cbk (frame=0x7f946c3f3d4c, cookie=0x7f946c56bad8, this=0xc0d940, op_ret=0, op_errno=0)
    at ../../../../../xlators/performance/io-threads/src/io-threads.c:1511
#8  0x00007f946d31335f in default_setxattr_cbk (frame=0x7f946c56bad8, cookie=0x7f946c570c34, this=0xc0c7b0, op_ret=0, op_errno=0)
    at ../../../libglusterfs/src/defaults.c:273
#9  0x00007f946a0fffa9 in posix_acl_setxattr_cbk (frame=0x7f946c570c34, cookie=0x7f946c4c3f44, this=0xc0b550, op_ret=0, op_errno=0)
    at ../../../../../xlators/system/posix-acl/src/posix-acl.c:1665
#10 0x00007f946a31811c in posix_setxattr (frame=0x7f946c4c3f44, this=0xc0a120, loc=0x7f946c0cb9a0, dict=0x7f945480e2a0, flags=0)
    at ../../../../../xlators/storage/posix/src/posix.c:3273
#11 0x00007f946a100227 in posix_acl_setxattr (frame=0x7f946c570c34, this=0xc0b550, loc=0x7f946c0cb9a0, xattr=0x7f945480e2a0, flags=0)
    at ../../../../../xlators/system/posix-acl/src/posix-acl.c:1684
#12 0x00007f946d31a773 in default_setxattr (frame=0x7f946c56bad8, this=0xc0c7b0, loc=0x7f946c0cb9a0, dict=0x7f945480e2a0, flags=0)
    at ../../../libglusterfs/src/defaults.c:828
#13 0x00007f9469cd3a54 in iot_setxattr_wrapper (frame=0x7f946c3f3d4c, this=0xc0d940, loc=0x7f946c0cb9a0, dict=0x7f945480e2a0, 
    flags=0) at ../../../../../xlators/performance/io-threads/src/io-threads.c:1520
#14 0x00007f946d331e1e in call_resume_wind (stub=0x7f946c0cb968) at ../../../libglusterfs/src/call-stub.c:2259
#15 0x00007f946d3389da in call_resume (stub=0x7f946c0cb968) at ../../../libglusterfs/src/call-stub.c:3859
#16 0x00007f9469cca213 in iot_worker (data=0xc18010) at ../../../../../xlators/performance/io-threads/src/io-threads.c:129
#17 0x00000033ace077e1 in start_thread () from /lib64/libpthread.so.0
#18 0x00000033acae68ed in clone () from /lib64/libc.so.6
(gdb) f 0
#0  0x00007f946d313d3c in default_inodelk_cbk (frame=0x7f94588b37c0, cookie=0x7f94588b5000, this=0x7f94587599d8, op_ret=0, 
    op_errno=0) at ../../../libglusterfs/src/defaults.c:342
342             STACK_UNWIND_STRICT (inodelk, frame, op_ret, op_errno);
(gdb) p frame
$1 = (call_frame_t *) 0x7f94588b37c0
(gdb) p frame->root
$2 = (call_stack_t *) 0x0
(gdb) p frame->parent
$3 = (call_frame_t *) 0xa5
(gdb)  info thr
  13 Thread 0x7f944aded700 (LWP 22994)  0x00000033ace0e074 in __lll_lock_wait () from /lib64/libpthread.so.0
  12 Thread 0x7f944aeee700 (LWP 32712)  0x00000033ace0e074 in __lll_lock_wait () from /lib64/libpthread.so.0
  11 Thread 0x7f944a9e9700 (LWP 17167)  0x00000033ace0e074 in __lll_lock_wait () from /lib64/libpthread.so.0
  10 Thread 0x7f944afef700 (LWP 32463)  0x00000033ace0e074 in __lll_lock_wait () from /lib64/libpthread.so.0
  9 Thread 0x7f94692a8700 (LWP 3295)  0x00000033ace0b7cb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
  8 Thread 0x7f946af24700 (LWP 3290)  0x00000033acaaba6d in nanosleep () from /lib64/libc.so.6
  7 Thread 0x7f946c0af700 (LWP 3288)  0x00000033ace0f2c5 in sigwait () from /lib64/libpthread.so.0
  6 Thread 0x7f944abeb700 (LWP 18063)  0x00000033ace0e074 in __lll_lock_wait () from /lib64/libpthread.so.0
  5 Thread 0x7f946ceaf700 (LWP 3287)  0x00000033acae6ee3 in epoll_wait () from /lib64/libc.so.6
  4 Thread 0x7f944acec700 (LWP 18057)  0x00000033ace0e074 in __lll_lock_wait () from /lib64/libpthread.so.0
  3 Thread 0x7f944b0f0700 (LWP 32320)  0x00000033ace0e205 in __lll_unlock_wake () from /lib64/libpthread.so.0
  2 Thread 0x7f944b7f7700 (LWP 14347)  list_add_tail (new=0x7f9454758a30, head=0x7f945c00ee28)
    at ../../../../../libglusterfs/src/list.h:52
* 1 Thread 0x7f944aaea700 (LWP 18076)  0x00007f946d313d3c in default_inodelk_cbk (frame=0x7f94588b37c0, cookie=0x7f94588b5000, 
    this=0x7f94587599d8, op_ret=0, op_errno=0) at ../../../libglusterfs/src/defaults.c:342
(gdb) 




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