Bug 1391093

Summary:	[Samba-Crash] : Core logs were generated while working on random IOs
Product:	Red Hat Gluster Storage	Reporter:	Vivek Das <vdas>
Component:	samba	Assignee:	Raghavendra Talur <rtalur>
Status:	CLOSED ERRATA	QA Contact:	Vivek Das <vdas>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.2	CC:	rhinduja, rhs-smb, rjoseph, rtalur, sanandpa
Target Milestone:	---
Target Release:	RHGS 3.2.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.8.4-4	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-03-23 06:16:16 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1391086, 1392286, 1392288, 1392289
Bug Blocks:	1351528

Description Vivek Das 2016-11-02 14:33:11 UTC

Description of problem:
On an existing 4 node cluster with samba ctdb setup, mount the volume share on windows 8 & windows 10. I was accessing the share creating files and deleting files, trying to play video files, creating directories and files manually. Running dir command over the share. Back when i checked the /var/log/samba/core/smbd i found cores generated. Though i did not encountered any hung issue.

Version-Release number of selected component (if applicable):
samba-client-4.4.6-2.el7rhgs.x86_64
glusterfs-client-xlators-3.8.4-3.el7rhgs.x86_64
WIndows8
Windows10

How reproducible:
Reporting on first encounter

Steps to Reproduce:
1.4 node gluster cluster with ctdb samba setup
2.Mount volume in windows8 & windows10
3.Run IOs on any one (using any script), create directories, files manually, copy files from local to share and vice-a-versa.
4.Basically perform task where gfapi async calls are used

Actual results:
Found core logs

Expected results:
There should not be any core

Additional info:

(gdb) bt
#0  0x00007f120b0755f7 in raise () from /lib64/libc.so.6
#1  0x00007f120b076ce8 in abort () from /lib64/libc.so.6
#2  0x00007f120c9d6b9b in dump_core () at ../source3/lib/dumpcore.c:322
#3  0x00007f120c9c9f97 in smb_panic_s3 (why=<optimized out>) at ../source3/lib/util.c:814
#4  0x00007f120eebc57f in smb_panic (why=why@entry=0x7f120ef0354a "internal error") at ../lib/util/fault.c:166
#5  0x00007f120eebc796 in fault_report (sig=<optimized out>) at ../lib/util/fault.c:83
#6  sig_fault (sig=<optimized out>) at ../lib/util/fault.c:94
#7  <signal handler called>
#8  0x00007f120f11a210 in pthread_spin_lock () from /lib64/libpthread.so.0
#9  0x00007f11f3f78255 in fd_unref () from /lib64/libglusterfs.so.0
#10 0x00007f11f4661a81 in glfs_io_async_cbk () from /lib64/libgfapi.so.0
#11 0x00007f11f4661eef in glfs_preadv_async_cbk () from /lib64/libgfapi.so.0
#12 0x00007f11df5b002d in io_stats_readv_cbk () from /usr/lib64/glusterfs/3.8.4/xlator/debug/io-stats.so
#13 0x00007f11f3fd0c52 in default_readv_cbk () from /lib64/libglusterfs.so.0
#14 0x00007f11f3fd0c52 in default_readv_cbk () from /lib64/libglusterfs.so.0
#15 0x00007f11f3fd0c52 in default_readv_cbk () from /lib64/libglusterfs.so.0
#16 0x00007f11dfdf7787 in ioc_frame_return () from /usr/lib64/glusterfs/3.8.4/xlator/performance/io-cache.so
#17 0x00007f11dfdf7b2f in ioc_waitq_return () from /usr/lib64/glusterfs/3.8.4/xlator/performance/io-cache.so
#18 0x00007f11dfdf81dd in ioc_fault_cbk () from /usr/lib64/glusterfs/3.8.4/xlator/performance/io-cache.so
#19 0x00007f11ec413332 in ra_readv_disabled_cbk () from /usr/lib64/glusterfs/3.8.4/xlator/performance/read-ahead.so
#20 0x00007f11f3fd0c52 in default_readv_cbk () from /lib64/libglusterfs.so.0
#21 0x00007f11ec890fe3 in dht_readv_cbk () from /usr/lib64/glusterfs/3.8.4/xlator/cluster/distribute.so
#22 0x00007f11ecac7649 in afr_readv_cbk () from /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so
#23 0x00007f11ecd59773 in client3_3_readv_cbk () from /usr/lib64/glusterfs/3.8.4/xlator/protocol/client.so
#24 0x00007f11f4449680 in rpc_clnt_handle_reply () from /lib64/libgfrpc.so.0
#25 0x00007f11f444995f in rpc_clnt_notify () from /lib64/libgfrpc.so.0
#26 0x00007f11f4445883 in rpc_transport_notify () from /lib64/libgfrpc.so.0
#27 0x00007f11ed78ceb4 in socket_event_poll_in () from /usr/lib64/glusterfs/3.8.4/rpc-transport/socket.so
#28 0x00007f11ed78f365 in socket_event_handler () from /usr/lib64/glusterfs/3.8.4/rpc-transport/socket.so
#29 0x00007f11f3fae340 in event_dispatch_epoll_worker () from /lib64/libglusterfs.so.0
#30 0x00007f120f115dc5 in start_thread () from /lib64/libpthread.so.0
#31 0x00007f120b136ced in clone () from /lib64/libc.so.6

Comment 3 Raghavendra Talur 2016-11-07 06:54:33 UTC

Patch merged upstream at
master http://review.gluster.org/#/c/15768
3.7 http://review.gluster.org/#/c/15780/1
3.8 http://review.gluster.org/#/c/15779/1
3.9 http://review.gluster.org/#/c/15778/2

Patch posted downstream at https://code.engineering.redhat.com/gerrit/#/c/89229/

Comment 7 Vivek Das 2016-11-15 12:37:20 UTC

Version
--------
samba-client-4.4.6-2.el7rhgs.x86_64
glusterfs-cli-3.8.4-5.el7rhgs.x86_64

Unable to reproduce the issue with the above build version. I tried multiple client test cases along with the steps to reproduce mentioned above.

So marking it as Verified.

Comment 9 errata-xmlrpc 2017-03-23 06:16:16 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2017-0486.html