[Bugs] [Bug 1398226] New: With compound fops on, client process crashes when a replica is brought down while IO is in progress

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1398226

            Bug ID: 1398226
           Summary: With compound fops on, client process crashes when a
                    replica is brought down while IO is in progress
           Product: GlusterFS
           Version: mainline
         Component: replicate
          Assignee: bugs at gluster.org
          Reporter: kdhananj at redhat.com
                CC: bugs at gluster.org



Description of problem:


(gdb) bt
#0  0x00007f976ed9169d in afr_pre_op_writev_cbk (frame=0x7f97601255dc,
cookie=0x0, this=0x7f976800f860, op_ret=-1, op_errno=107, data=0x0, xdata=0x0)
    at afr-transaction.c:1252
#1  0x00007f976f022d04 in client3_3_compound_cbk (req=0x7f976017bc9c,
iov=0x7f976fa53770, count=1, myframe=0x7f97600c11ec) at client-rpc-fops.c:3213
#2  0x00007f977c3764cb in saved_frames_unwind (saved_frames=0x7f9764000bd0) at
rpc-clnt.c:369
#3  0x00007f977c376563 in saved_frames_destroy (frames=0x7f9764000bd0) at
rpc-clnt.c:386
#4  0x00007f977c376a7c in rpc_clnt_connection_cleanup (conn=0x7f9768060790) at
rpc-clnt.c:555
#5  0x00007f977c377523 in rpc_clnt_notify (trans=0x7f9768060bc0,
mydata=0x7f9768060790, event=RPC_TRANSPORT_DISCONNECT, data=0x7f9768060bc0) at
rpc-clnt.c:901
#6  0x00007f977c373a27 in rpc_transport_notify (this=0x7f9768060bc0,
event=RPC_TRANSPORT_DISCONNECT, data=0x7f9768060bc0) at rpc-transport.c:537
#7  0x00007f977151788d in socket_event_poll_err (this=0x7f9768060bc0) at
socket.c:1177
#8  0x00007f977151c23d in socket_event_handler (fd=14, idx=3,
data=0x7f9768060bc0, poll_in=1, poll_out=0, poll_err=24) at socket.c:2402
#9  0x00007f977c61c323 in event_dispatch_epoll_handler (event_pool=0x1488010,
event=0x7f976fa53f20) at event-epoll.c:571
#10 0x00007f977c61c702 in event_dispatch_epoll_worker (data=0x14cb7c0) at
event-epoll.c:674
#11 0x00007f977b6025ca in start_thread () from /lib64/libpthread.so.0
#12 0x00007f977aedc0ed in clone () from /lib64/libc.so.6
(gdb) f 1
#1  0x00007f976f022d04 in client3_3_compound_cbk (req=0x7f976017bc9c,
iov=0x7f976fa53770, count=1, myframe=0x7f97600c11ec) at client-rpc-fops.c:3213
3213            CLIENT_STACK_UNWIND (compound, frame, rsp.op_ret,
(gdb) p req->rpc_status
$3 = -1
(gdb) f 0
#0  0x00007f976ed9169d in afr_pre_op_writev_cbk (frame=0x7f97601255dc,
cookie=0x0, this=0x7f976800f860, op_ret=-1, op_errno=107, data=0x0, xdata=0x0)
    at afr-transaction.c:1252
1252            write_args_cbk = &args_cbk->rsp_list[1];
(gdb) p args_cbk
$4 = (compound_args_cbk_t *) 0x0



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