[Bugs] [Bug 1671556] glusterfs FUSE client crashing every few days with 'Failed to dispatch handler'

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1671556



--- Comment #26 from Artem Russakovskii <archon810 at gmail.com> ---
I wish I could say the same thing. Unfortunately, I had another crash on the
same server yesterday, with performance.write-behind still set to off. I've
emailed the core file privately to the relevant people.


[2019-02-19 19:50:39.511743] W [dict.c:761:dict_ref]
(-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
[0x7f9598991329]
-->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
[0x7f9598ba2af5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
[0x7f95a137d218] ) 2-dict: dict is NULL [Invalid argument]
The message "E [MSGID: 101191] [event-epoll.c:671:event_dispatch_epoll_worker]
2-epoll: Failed to dispatch handler" repeated 95 times between [2019-02-19
19:49:07.655620] and [2019-02-19 19:50:39.499284]
The message "I [MSGID: 108031] [afr-common.c:2543:afr_local_discovery_cbk]
2-<SNIP>_data3-replicate-0: selecting local read_child <SNIP>_data3-client-3"
repeated 56 times between [2019-02-19 19:49:07.602370] and [2019-02-19
19:50:42.912766]
pending frames:   
frame : type(1) op(LOOKUP)
frame : type(0) op(0)
patchset: git://git.gluster.org/glusterfs.git
signal received: 6
time of crash:
2019-02-19 19:50:43
configuration details:
argp 1
backtrace 1
dlfcn 1
libpthread 1
llistxattr 1
setfsid 1
spinlock 1
epoll.h 1
xattr.h 1
st_atim.tv_nsec 1
package-string: glusterfs 5.3
/usr/lib64/libglusterfs.so.0(+0x2764c)[0x7f95a138864c]
/usr/lib64/libglusterfs.so.0(gf_print_trace+0x306)[0x7f95a1392cb6]
/lib64/libc.so.6(+0x36160)[0x7f95a054f160]
/lib64/libc.so.6(gsignal+0x110)[0x7f95a054f0e0]
/lib64/libc.so.6(abort+0x151)[0x7f95a05506c1]
/lib64/libc.so.6(+0x2e6fa)[0x7f95a05476fa]
/lib64/libc.so.6(+0x2e772)[0x7f95a0547772]
/lib64/libpthread.so.0(pthread_mutex_lock+0x228)[0x7f95a08dd0b8]
/usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x5dc9d)[0x7f95994f0c9d]
/usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x70ba1)[0x7f9599503ba1]
/usr/lib64/glusterfs/5.3/xlator/protocol/client.so(+0x58f3f)[0x7f9599788f3f]
/usr/lib64/libgfrpc.so.0(+0xe820)[0x7f95a1153820]
/usr/lib64/libgfrpc.so.0(+0xeb6f)[0x7f95a1153b6f]  
/usr/lib64/libgfrpc.so.0(rpc_transport_notify+0x23)[0x7f95a1150063]
/usr/lib64/glusterfs/5.3/rpc-transport/socket.so(+0xa0b2)[0x7f959aea00b2]
/usr/lib64/libglusterfs.so.0(+0x854c3)[0x7f95a13e64c3]
/lib64/libpthread.so.0(+0x7559)[0x7f95a08da559]
/lib64/libc.so.6(clone+0x3f)[0x7f95a061181f]
---------
[2019-02-19 19:51:34.425106] I [MSGID: 100030] [glusterfsd.c:2715:main]
0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 5.3 (args:
/usr/sbin/glusterfs --lru-limit=0 --process-name fuse
--volfile-server=localhost --volfile-id=/<SNIP>_data3 /mnt/<SNIP>_data3)
[2019-02-19 19:51:34.435206] I [MSGID: 101190]
[event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread with
index 1
[2019-02-19 19:51:34.450272] I [MSGID: 101190]
[event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread with
index 2
[2019-02-19 19:51:34.450394] I [MSGID: 101190]
[event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread with
index 4
[2019-02-19 19:51:34.450488] I [MSGID: 101190]
[event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread with
index 3

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