[Gluster-devel] add-brick crashes client

[Emmanuel Dreyfus]

Hi

I feel unlucky with release-3.3. Adding a pair of brick in a replicated
volume crashes a client that is using the volume.

Client log is attached. Here is glusterfsd bbacktrace in gdb:

Program terminated with signal 11, Segmentation fault.
#0  0xbbbc239c in synctask_wrap (old_task=0xbb711000) at syncop.c:120
120             task->ret = task->syncfn (task->opaque);
(gdb) bt
#0  0xbbbc239c in synctask_wrap (old_task=0xbb711000) at syncop.c:120
#1  0xbb8ccbe0 in swapcontext () from /lib/libc.so.12
Backtrace stopped: Not enough registers or memory available to unwind further
(gdb) print task
$1 = (struct synctask *) 0x0

This means pthread_getspecific(synctask_key) in synctask_get() returned 
NULL, something I cannot explain. I see the logs complain about a volume
being down. This may be the cause of the problem since I have been able
to do a live brick-add later, once I restarterd glusterd/glusterfsd on 
all bricks.

-- 
Emmanuel Dreyfus
address@hidden

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