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Bug 70118

Summary:	NFS kernel module crashes on high write load
Product:	[Retired] Red Hat Linux	Reporter:	Johan Reinalda <reinaldj>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED DUPLICATE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	7.3	CC:	sct
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2002-07-31 14:14:09 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Johan Reinalda 2002-07-30 16:03:44 UTC

From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 
1.0.3705)

Description of problem:
This seemed at first similar to bugs 64921, 64984 and 65772, as fixed in 
2.4.18-5, but we are still experiencing kernel panic problems under high write 
load of the nfs server.

All clients mount with auto,noac,async,rsize
=8192,wsize=8192,rw,bg,soft,intr,nfsvers=2

kern.log shows the following:
Jul 30 00:40:31 lifetimefs1 kernel: Assertion failure in 
journal_commit_transact
ion() at commit.c:535: "buffer_jdirty(bh)"
Jul 30 00:40:31 lifetimefs1 kernel: ------------[ cut here ]------------
Jul 30 00:40:31 lifetimefs1 kernel: kernel BUG at commit.c:535!
Jul 30 00:40:31 lifetimefs1 kernel: invalid operand: 0000
Jul 30 00:40:31 lifetimefs1 kernel: autofs nfs nfsd lockd sunrpc eepro100 
ipchains usb-ohci usbcore ext3 jbd cciss

At this point all is dead, even console logins don't work and a powercycle is 
the only solution.

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


How reproducible:
Always

Steps to Reproduce:
1. High write load on the NFS server
2.
3.
	

Actual Results:  kernel panic and server is doa!

Expected Results:  NFS server keeps running :-)

Additional info:

Comment 1 Stephen Tweedie 2002-07-30 22:07:17 UTC

Is it always the same crash?

99% or more of the occurrences of this problem were fixed in 2.4.18-4smp, but I
continued to get just a few rare reports even with the fixed kernel, and found
another possible cause of the same problem since then.  That is fixed in our
internal tree and will be part of the next errata kernel.

Comment 2 Stephen Tweedie 2002-07-31 10:55:35 UTC

See

  http://people.redhat.com/arjanv/testkernels/

for a 2.4.18-7 kernel which should hopefully fix this problem.

Comment 3 Stephen Tweedie 2002-07-31 14:52:33 UTC


*** This bug has been marked as a duplicate of 68026 ***