Bug 1382065

Summary:	SAMBA-ClientIO-Thread : Samba crashes with segfault while doing multiple mount & unmount of volume share with 3.2 builds
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Vivek Das <vdas>
Component:	io-threads	Assignee:	Pranith Kumar K <pkarampu>
Status:	CLOSED ERRATA	QA Contact:	Vivek Das <vdas>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.2	CC:	amukherj, rcyriac, rhinduja, rhs-bugs, rhs-smb, sanandpa, sbhaloth
Target Milestone:	---
Target Release:	RHGS 3.2.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.8.4-3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-03-23 06:08:26 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:
Embargoed:
Bug Depends On:	1380619
Bug Blocks:	1351528

Description Vivek Das 2016-10-05 16:02:02 UTC

Description of problem:
Samba crashes with segfault while doing multiple mount and unmount of volume share in windows client with 3.2 builds.

Version-Release number of selected component (if applicable):
glusterfs-cli-3.8.4-2.el7rhgs.x86_64
samba-client-4.4.6-1.el7rhgs.x86_64

How reproducible:
Always

Steps to Reproduce:
1.Create samba setup on a 4 node cluster
2.Create 2 different volume of 2X2
3.Freshly mount Volume-A in windows client
4.On a continuous loop of around 25 do a mount and unmount of Volume-B with a wait time of 20 seconds after every loop.
5.Meanwhile keep checking for core logs

Actual results:
Samba crashes with segfault producing core logs (2)

Expected results:
Should not crash

Additional info:
Tried the above procedure with client-io thread off for the volume no crash was seen.

Comment 3 Atin Mukherjee 2016-10-24 04:02:09 UTC

downstream patch : https://code.engineering.redhat.com/gerrit/87972

Comment 7 Vivek Das 2016-11-05 14:41:16 UTC

Updated the systems to the below versions and followed the Steps to Reproduce, no crash was seen hence marking it as verified.
samba-client-4.4.6-2.el7rhgs.x86_64
glusterfs-cli-3.8.4-3.el7rhgs.x86_64

Comment 9 errata-xmlrpc 2017-03-23 06:08:26 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