Bug 820582

Summary:	nfs:mem-pool: mem_put called on freed ptr
Product:	[Community] GlusterFS	Reporter:	Saurabh <saujain>
Component:	nfs	Assignee:	Vivek Agarwal <vagarwal>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Saurabh <saujain>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	pre-release	CC:	gluster-bugs, mzywusko, sankarshan, vagarwal
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	glusterfs-3.4.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-07-24 17:23:08 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:	3.3.0qa42	Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	817967

Description Saurabh 2012-05-10 12:21:25 UTC

Description of problem:
[2012-05-10 11:51:27.142491] I [client-handshake.c:462:client_set_lk_version_cbk] 0-quota_dist_rep-client-5: Server lk version = 1
[2012-05-10 11:51:27.142887] I [afr-common.c:1971:afr_set_root_inode_on_first_lookup] 0-quota_dist_rep-replicate-0: added root inode
[2012-05-10 11:51:27.143613] I [afr-common.c:1971:afr_set_root_inode_on_first_lookup] 0-quota_dist_rep-replicate-1: added root inode
[2012-05-10 11:51:27.143660] I [afr-common.c:1971:afr_set_root_inode_on_first_lookup] 0-quota_dist_rep-replicate-2: added root inode
[2012-05-10 11:58:31.304381] C [mem-pool.c:541:mem_put] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_handle_rpc_call+0x143) [0x30008090b3] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_error_reply+0x50) [0x3000808ba0] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_submit_generic+0x267) [0x30008087d7]))) 0-mem-pool: mem_put called on freed ptr 0x7f2ec61a6910 of mem pool 0x25333a0
pending frames:

patchset: git://git.gluster.com/glusterfs.git
signal received: 6
(END) 



and the system is not able to dump the core and mounts hang, seems some deadlock  
happening

Version-Release number of selected component (if applicable):
3.3.0qa40

How reproducible:
once

Steps to Reproduce:
1. mount the subdir of a volume
2. create some files
3. umount it
4. now try to mount the root of the volume.
  
Actual results:
the volume mount should hangs, with above mentioned results from the nfs.log


Expected results:

it should mount

Additional info:

Comment 1 Anand Avati 2012-05-15 23:09:52 UTC

CHANGE: http://review.gluster.com/3333 (nfs/mount: avoid duplicate reply on ENOENT) merged in master by Anand Avati (avati)

Comment 2 Anand Avati 2012-05-19 10:28:31 UTC

CHANGE: http://review.gluster.com/3355 (nfs/mount: avoid duplicate reply on ENOENT) merged in release-3.3 by Vijay Bellur (vijay)