Bug 70530

Summary:	kjournald,kupdated going mad on filesystem write/read
Product:	[Retired] Red Hat Linux	Reporter:	Andreas Sartori <andreas.sartori>
Component:	kernel	Assignee:	Stephen Tweedie <sct>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.3
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:	2002-08-02 08:31:26 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 Andreas Sartori 2002-08-02 08:25:40 UTC

Description of Problem:
i have already worked with the RHN Support on this problem and they told be to
contact bugzilla. you can read on the problem at Service Request 210756.
there is a sysreport at the service request.
please get on the problem.

complete machine is locked up, no more working for many seconds during the whole
filesystem access.

Version-Release number of selected component (if applicable):
redhat 7.3

How Reproducible:
always.

Steps to Reproduce:
1. filesystem read/write. (e.g. scp is enough)
2. 
3. 

Actual Results:


Expected Results:


Additional Information:

Comment 1 Stephen Tweedie 2002-11-11 21:13:37 UTC

That's often a sign that your disk is not running in DMA mode.  Also, the
current errata kernel has _far_ better interactive performance under load. 
Please reopen this request if the errata kernel still performs poorly, and you
have determined via "hdparm" that your disks are all using DMA.