Bug 149650
Summary: | out of memory kills followed by crash running AS 3 U4 kernel | ||
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Product: | [Retired] Red Hat Cluster Suite | Reporter: | Jonathan Woytek <woytek+> |
Component: | gfs | Assignee: | Ryan O'Hara <rohara> |
Status: | CLOSED WORKSFORME | QA Contact: | GFS Bugs <gfs-bugs> |
Severity: | high | Docs Contact: | |
Priority: | medium | ||
Version: | 3 | ||
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: | 2006-01-12 23:55:02 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
Jonathan Woytek
2005-02-24 20:33:45 UTC
Created attachment 111396 [details]
quicksilver meminfo (three hours after reboot)
Created attachment 111397 [details]
quicksilver slabinfo (three hours after reboot)
Created attachment 111398 [details]
storm meminfo (three hours after reboot)
Created attachment 111399 [details]
storm slabinfo (three hours after reboot)
Created attachment 111400 [details]
hazycase meminfo (up for five days)
Created attachment 111401 [details]
hazycase slabinfo (up for five days)
Are these problems still occuring with the latest release of software - RHEL3 U5 and GFS 6.0 for U5? I am unable to reproduce this bug on RHEL3 U6. Note that some fixes were made to the kernel in regards to OOM kill issues since this bug was first reported. Customer also reports that running a "hugemem" kernel alleviates the problem. Marking as closed since I am unable to reproduce this bug. Please re-open this bug if problem persists. Most of the problem has been alleviated by running with hyperthreading disabled in the bios of all GFS cluster members. iSCSI performance went up in general, but GFS filesystems had the biggest performance boost (40-50% on average). This also seems to leave me with tons of lowmem free, so it may be possible to run the standard kernel. I did have to increase the GFS lock highwater setting to clear-up some additional performance issues. jonathan |