I got a crash client-side. It happens in pthread_spin_lock() and I recall fixing that kind of issue for a uninitialized lock. pending frames: frame : type(1) op(FSETATTR) frame : type(1) op(FSETATTR) frame : type(1) op(FSETATTR) patchset: git://git.gluster.com/glusterfs.git signal received: 11 time of crash: 2012-04-30 20:14:10 configuration details: dlfcn 1 fdatasync 1l ibpthread 1 llistxattr 1 spinlock 1 extattr.h 1 xattr.h 1 st_atimespec.tv_nsec 1 package-string: glusterfs 3.3.0qa39 Core was generated by `glusterfsd'. Program terminated with signal 11, Segmentation fault. #0 0xbbb3a7c9 in pthread_spin_lock () from /usr/lib/libpthread.so.1 (gdb) bt #0 0xbbb3a7c9 in pthread_spin_lock () from /usr/lib/libpthread.so.1 #1 0xbaa09d8c in mdc_inode_prep () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/performance/md-cache.so #2 0xbaa0a1bf in mdc_inode_iatt_set () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/performance/md-cache.so #3 0xbaa0ec59 in mdc_setattr_cbk () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/performance/md-cache.so #4 0xbaa1d06e in qr_fsetattr_cbk () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/performance/quick-read.so #5 0xbbb8aa4e in default_fsetattr_cbk (frame=0xbb7857c0, cookie=0xbb789e30, this=0xba3e1000, op_ret=0, op_errno=0, statpre=0xb95c3940, statpost=0xb95c39a8, xdata=0x0) at defaults.c:461 #6 0xbbb8aa4e in default_fsetattr_cbk (frame=0xbb789e30, cookie=0xbb77a460, this=0xba3e0000, op_ret=0, op_errno=0, statpre=0xb95c3940, statpost=0xb95c39a8, xdata=0x0) at defaults.c:461 #7 0xbbb8aa4e in default_fsetattr_cbk (frame=0xbb77a460, cookie=0xbb7ae410, this=0xba3df000, op_ret=0, op_errno=0, statpre=0xb95c3940, statpost=0xb95c39a8, xdata=0x0) at defaults.c:461 #8 0xb9aa9cb7 in afr_fsetattr_unwind () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/cluster/replicate.so #9 0xb9aa9e95 in afr_fsetattr_wind_cbk () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/cluster/replicate.so #10 0xbaa69dda in client3_1_fsetattr_cbk () from /usr/local/lib/glusterfs/3.3.0qa39/xlator/protocol/client.so #11 0xbbb69716 in rpc_clnt_handle_reply () from /usr/local/lib/libgfrpc.so.0 #12 0xbbb699b3 in rpc_clnt_notify () from /usr/local/lib/libgfrpc.so.0 #13 0xbbb65989 in rpc_transport_notify () from /usr/local/lib/libgfrpc.so.0 #14 0xbaa9328e in socket_event_poll_in () from /usr/local/lib/glusterfs/3.3.0qa39/rpc-transport/socket.so #15 0xbaa93805 in socket_event_handler () from /usr/local/lib/glusterfs/3.3.0qa39/rpc-transport/socket.so #16 0xbbbb2303 in event_dispatch_poll_handler (event_pool=0xbb734080, ufds=0xbb7776a0, i=3) at event.c:366 #17 0xbbbb256f in event_dispatch_poll (event_pool=0xbb734080) at event.c:446 #18 0xbbbb289b in event_dispatch (event_pool=0xbb734080) at event.c:956 #19 0x0804fed4 in main () -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz manu@xxxxxxxxxx