Bug 3247
Summary: | Hard stop under heavy IDE/Network traffic | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | Martin C. Messer <mmesser> |
Component: | kernel | Assignee: | David Lawrence <dkl> |
Status: | CLOSED WORKSFORME | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 6.0 | ||
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 1999-06-04 21:06:54 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
Martin C. Messer
1999-06-03 18:08:17 UTC
I was unable to get this to fail on a test lab machine containing a Cyrix MII 300. I ping flooded the machine while running the hdparm -t /dev/hda command. It got noticable slower but never locked up. ------- Additional Comments From 06/12/99 01:43 ------- Some info got left off of my original report below. First, another user saw exactly the same behavior: http://x28.deja.com/getdoc.xp?AN=484168039.1&CONTEXT=928218503.648347748&hitnum=20 I don't get a reboot, the machine just locks up. Second, doing a hdparm -d 1/dev/hda (i.e. enabling DMA) "solves" the problem. Third, ifconfig shows that packets are being dropped prior to the failure. If I am ftp'ing a large file, the machine locks, but the halt can be avoided if I continually do network restarts during the transfer. This is a real bug in the EPIC100 driver. It requires that interrupts are deferred for a long time while the card receives only small frames. The fix is in 2.2.7 or so and higher, I can provide it if need be. |