Description of problem:
-----------------------

This is different than https://bugzilla.redhat.com/show_bug.cgi?id=1466988.

Not just coz the BTs are different(one is EC , one is AFR),but also I think https://bugzilla.redhat.com/show_bug.cgi?id=1466988 happened in opendir path. 

Plz feel free to close as DUP,if that's not the case.

Use Case- 2 node cluster,4 clients writing in their specific subdirectories (using Bonnie,dbench,kernel untar).

Ganesha crashed on one of my nodes with the following BT :

(gdb) bt
#0  __inode_ctx_free (inode=inode@entry=0x7f2f440025c0) at inode.c:331
#1  0x00007f32108651d2 in __inode_destroy (inode=0x7f2f440025c0) at inode.c:353
#2  inode_table_prune (table=table@entry=0x7f31f806afc0) at inode.c:1543
#3  0x00007f32108654b4 in inode_unref (inode=0x7f2f440025c0) at inode.c:524
#4  0x00007f31ff90d4a5 in afr_local_cleanup (local=0x7f31f81449c0, this=<optimized out>) at afr-common.c:1790
#5  0x00007f31ff8ea0fc in __afr_txn_write_done (frame=<optimized out>, this=<optimized out>) at afr-transaction.c:198
#6  0x00007f31ff8ef0eb in afr_unlock_common_cbk (frame=frame@entry=0x7f31f82704e0, this=this@entry=0x7f31f8011ce0, xdata=0x0, op_errno=<optimized out>, op_ret=<optimized out>, cookie=<optimized out>)
    at afr-lk-common.c:633
#7  0x00007f31ff8ef9e4 in afr_unlock_entrylk_cbk (frame=0x7f31f82704e0, cookie=<optimized out>, this=0x7f31f8011ce0, op_ret=<optimized out>, op_errno=<optimized out>, xdata=<optimized out>)
    at afr-lk-common.c:829
#8  0x00007f31ffb526eb in client3_3_entrylk_cbk (req=<optimized out>, iov=<optimized out>, count=<optimized out>, myframe=0x7f31ec0f0760) at client-rpc-fops.c:1657
#9  0x00007f321061f840 in rpc_clnt_handle_reply (clnt=clnt@entry=0x7f31f80570e0, pollin=pollin@entry=0x7f31e8002440) at rpc-clnt.c:794
#10 0x00007f321061fb27 in rpc_clnt_notify (trans=<optimized out>, mydata=0x7f31f8057110, event=<optimized out>, data=0x7f31e8002440) at rpc-clnt.c:987
#11 0x00007f321061b9e3 in rpc_transport_notify (this=this@entry=0x7f31f8057280, event=event@entry=RPC_TRANSPORT_MSG_RECEIVED, data=data@entry=0x7f31e8002440) at rpc-transport.c:538
#12 0x00007f32040953d6 in socket_event_poll_in (this=this@entry=0x7f31f8057280, notify_handled=<optimized out>) at socket.c:2306
#13 0x00007f320409797c in socket_event_handler (fd=10, idx=5, gen=1, data=0x7f31f8057280, poll_in=1, poll_out=0, poll_err=0) at socket.c:2458
#14 0x00007f32108b0776 in event_dispatch_epoll_handler (event=0x7f31fdaa7540, event_pool=0x5601b972c010) at event-epoll.c:572
#15 event_dispatch_epoll_worker (data=0x7f31f80524c0) at event-epoll.c:648
#16 0x00007f3213ebde25 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f321358b34d in clone () from /lib64/libc.so.6
(gdb) 




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

nfs-ganesha-gluster-2.4.4-10.el7rhgs.x86_64
glusterfs-ganesha-3.8.4-32.el7rhgs.x86_64


How reproducible:
-----------------

Reporting the first occurence.


Additional info:
----------------

Volume Name: testvol
Type: Distributed-Replicate
Volume ID: 6ade5657-45e2-43c7-8098-774417789a5e
Status: Started
Snapshot Count: 0
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: gqas013.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick0
Brick2: gqas005.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick1
Brick3: gqas006.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick2
Brick4: gqas008.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick3
Options Reconfigured:
diagnostics.count-fop-hits: on
diagnostics.latency-measurement: on
client.event-threads: 4
server.event-threads: 4
cluster.lookup-optimize: on
ganesha.enable: on
features.cache-invalidation: on
server.allow-insecure: on
performance.stat-prefetch: off
transport.address-family: inet
nfs.disable: on
nfs-ganesha: enable
cluster.enable-shared-storage: enable
[root@gqas005 tmp]#