[Gluster-devel] Segfault

[Kevan Benson]

Another test configuration, another segfault.  ;)  Admittedly, I'd doing 
some odd stuff, like dual afr membership like so on the client:
afr-ns = a-ns, b-ns
afr1 = a-ds, b-ds
afr1 = b-ds, a-ds
unify = afr1, afr2 / ns = afr-ns

Servers simply export a namespace (ns) and a posix-locked share (ds).

Clients and servers start fine, any access from the client causes both 
servers to segfault as below.

Yes, I'm aware this may not be a supported configuration, I just figured 
I'd try, and then see how locking worked (as I can see there might be a 
posix locking problem with this if it doesn't segfault).

fuse glfs4
glusterfs tla 522

backtrace:
#0  0x00a37546 in pthread_spin_lock () from /lib/tls/libpthread.so.0
#1  0x005a6853 in fd_destroy (fd=0xb7e00d40) at xlator.c:282
#2  0x0011f35a in server_closedir_cbk (frame=0xb7e00b68, 
cookie=0xb7e005b8, this=0x9ae5088, op_ret=0, op_errno=17) at 
server-protocol.c:976
#3  0x005a8389 in default_closedir_cbk (frame=0xaaaaaaaa, 
cookie=0xb7e004b0, this=0x9ae4a88, op_ret=0, op_errno=17) at defaults.c:986
#4  0x00112cd4 in posix_closedir (frame=0xb7e004b0, this=0x9ae44f8, 
fd=0xb7e00d40) at posix.c:287
#5  0x005a8415 in default_closedir (frame=0xb7e005b8, this=0x9ae4a88, 
fd=0xb7e00d40) at defaults.c:997
#6  0x00123684 in server_closedir (frame=0xb7e00b68, bound_xl=0x9ae4a88, 
params=0xb7e005f0) at server-protocol.c:3968
#7  0x00126b13 in notify (this=0x9ae5088, event=2, data=0x9b1daa8) at 
server-protocol.c:5637
#8  0x005aa7d8 in transport_notify (this=0x9b1daa8, event=1) at 
transport.c:154
#9  0x005aafa1 in sys_epoll_iteration (ctx=0xbff7ef20) at epoll.c:53
#10 0x005aaac5 in poll_iteration (ctx=0xbff7ef20) at transport.c:300
#11 0x080494ce in main (argc=5, argv=0xbff7eff4) at glusterfsd.c:319


--

-Kevan Benson
-A-1 Networks