[Bugs] [Bug 1398499] 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=1398499

            Bug ID: 1398499
           Summary: With compound fops on, client process crashes when a
                    replica is brought down while IO is in progress
           Product: GlusterFS
           Version: 3.9
         Component: replicate
          Keywords: Triaged
          Assignee: bugs at gluster.org
          Reporter: kdhananj at redhat.com
                CC: bugs at gluster.org
        Depends On: 1398226
            Blocks: 1398331, 1398333



+++ This bug was initially created as a clone of Bug #1398226 +++

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



Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

--- Additional comment from Worker Ant on 2016-11-24 08:07:09 EST ---

REVIEW: http://review.gluster.org/15924 (cluster/afr: Handle rpc errors, xdr
failures etc with proper NULL checks) posted (#1) for review on master by
Krutika Dhananjay (kdhananj at redhat.com)

--- Additional comment from Worker Ant on 2016-11-24 22:03:24 EST ---

COMMIT: http://review.gluster.org/15924 committed in master by Pranith Kumar
Karampuri (pkarampu at redhat.com) 
------
commit 3a5169907b44d79e207c35941b1973b1f60d2079
Author: Krutika Dhananjay <kdhananj at redhat.com>
Date:   Thu Nov 24 18:36:28 2016 +0530

    cluster/afr: Handle rpc errors, xdr failures etc with proper NULL checks

    Change-Id: Id8ba76ba116d056bc7299dc5ce0980680a5a23f8
    BUG: 1398226
    Signed-off-by: Krutika Dhananjay <kdhananj at redhat.com>
    Reviewed-on: http://review.gluster.org/15924
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1398226
[Bug 1398226] With compound fops on, client process crashes when a replica
is brought down while IO is in progress
https://bugzilla.redhat.com/show_bug.cgi?id=1398331
[Bug 1398331] With compound fops on, client process crashes when a replica
is brought down while IO is in progress
https://bugzilla.redhat.com/show_bug.cgi?id=1398333
[Bug 1398333] With compound fops on, client process crashes when a replica
is brought down while IO is in progress
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