Bug 60148

Summary: Ugly system responsiveness with high disk IO
Product: [Retired] Red Hat Linux Reporter: Need Real Name <franck>
Component: kernelAssignee: Arjan van de Ven <arjanv>
Status: CLOSED CURRENTRELEASE QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.2   
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: 2002-02-28 09:56:05 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:
Attachments:
Description Flags
dmesg, lspci, ... none

Description Need Real Name 2002-02-20 22:58:24 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2.1) Gecko/20010901

Description of problem:
I use my RedHat Linux system on an Asus A7A266 motherboard (with an Ali chipset
with DDR ram, probably the cause of the problem). When I do some disk IO on my
IDE drives, the system is becoming unusable from a user point of view. 

Under heavy IDE load, il was able to get this :
rtc: lost some interrupts at 1024Hz

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


How reproducible:
Always

Steps to Reproduce:
The hardest part will probably be to find similar hardware.
A good way is to insert a CD in the CD-ROM drive with one big file. and copy it
to the hard drive. Then just try to move the mouse and you'll notice the problem.

Additional info:

I have tried to put my hard disk in another system (Asus A7V266), pretty similar
to mine (but different chipset) and the system runs just smoothly. I already
tried a BIOS upgrade and a Kernel upgrade. I'm running RedHat's latest Kernel
RPM 2.4.9-21.
Comment 1 Need Real Name 2002-02-20 23:03:38 UTC 
Created attachment 46180 [details]
dmesg, lspci, ...
Comment 2 Arjan van de Ven 2002-02-28 09:55:23 UTC 
can you see if dma is enabled for the ide devices ?