Bug 428338
| Summary: | [NetApp-S 5.2 bug] RHEL 5.1 root device multipathed host freezes during FCP path faults | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | RHEL Program Management <pm-rhel> | ||||
| Component: | device-mapper-multipath | Assignee: | Ben Marzinski <bmarzins> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Corey Marthaler <cmarthal> | ||||
| Severity: | urgent | Docs Contact: | |||||
| Priority: | urgent | ||||||
| Version: | 5.1 | CC: | agk, andriusb, bdevouge, bmarzins, christophe.varoqui, coughlan, ddomingo, dkovalsk, dwysocha, egoggin, heinzm, i-kitayama, james.smart, jamie.wellnitz, junichi.nomura, kueda, kueda, laurie.barry, lmb, lsmid, mbroz, mukesh.kumar, prockai, rsarraf, tellis, tranlan, xdl-redhat-bugzilla | ||||
| Target Milestone: | rc | Keywords: | OtherQA, ZStream | ||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | RHBA-2008-0050 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2008-01-30 15:31:19 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: | |||||||
| Bug Depends On: | 355961 | ||||||
| Bug Blocks: | 431119, 431947, 438150 | ||||||
| Attachments: |
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Description
RHEL Program Management
2008-01-10 22:17:55 UTC
This fix has been backported. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2008-0050.html I installed the updated device-mapper-multipath package i.e. device-mapper-multipath-0.4.7-12.el5_1.2 on my RHEL 5.1 root device multipathed host and rebooted, but the host freeze is still reproducible during faults. As suggested by Kiyoshi, I ran the attached script i.e. test.sh to trigger the freeze (the freeze is also reproducible while running FC path faults on the SAN fabric). I don't see any prio callout binaries in /var/cache/multipathd/ (if that was intended in the fix). The sysrq dumps (taken 10 minutes apart) seem to show both multipathd & bash stalling on the exec system call (similar to the original case). Created attachment 293642 [details]
Host dumps
The attachment contains the following:
1) Config.txt - Config info of the RHEL 5.1 root device multipathed host.
2) test.sh - Script to simulate path faults.
3) msg-Jan31 - /var/log/messages
4) rhel5-1-dumps-Jan31.TXT - Sysrq dumps (taken 10 minutes apart) during the
freeze.
Martin, please open a new bugzilla (clone this one) since this is marked closed already. Can you try switching the priority callout in /etc/multipath.conf to prio_callout "/sbin/mpath_prio_netapp.static /dev/%n" This is just a static version of the regular callout. I reproduced this on my machine, and it was caused by trying to read /lib/ld-linux.so.2 when the filesystem is hung. Hi, the RHEL5.2 release notes will be dropped to translation on April 15, 2008, at which point no further additions or revisions will be entertained. a mockup of the RHEL5.2 release notes can be viewed at the following link: http://intranet.corp.redhat.com/ic/intranet/RHEL5u2relnotesmockup.html please use the aforementioned link to verify if your bugzilla is already in the release notes (if it needs to be). each item in the release notes contains a link to its original bug; as such, you can search through the release notes by bug number. Cheers, Don |