Bug 658854
| Summary: | [NetApp 6.1 bug] RHEL6.0 FC host hits kernel panic at scsi_error_handler [rhel-6.0.z] | ||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | RHEL Program Management <pm-rhel> |
| Component: | kernel | Assignee: | Frantisek Hrbata <fhrbata> |
| Status: | CLOSED ERRATA | QA Contact: | Gris Ge <fge> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 6.0 | CC: | bdonahue, cdupuis, coughlan, dhoward, fge, jmalanik, jwest, marting, mchristi, msnitzer, pm-eus, rajashekhar.a, revers, xdl-redhat-bugzilla, yi.zou |
| Target Milestone: | rc | Keywords: | OtherQA, ZStream |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-2.6.32-71.16.1.el6 | Doc Type: | Bug Fix |
| Doc Text: |
A Red Hat Enterprise Linux 6.0 host (with root on a local disk) with dm-multipath configured on multiple LUNs (Logical Unit Number) hit kernel panic (at scsi_error_handler) with target controller faults during an I/O operation on the dm-multipath devices. This was caused by multipath using the blk_abort_queue() function to allow lower latency path deactivation. The call to blk_abort_queue proved to be unsafe due to a race (between blk_abort_queue and scsi_request_fn). With this update, the race has been resolved and kernel panic no longer occurs on Red Hat Enterprise Linux 6.0 hosts.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-02-22 17:38:44 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: | 636771 | ||
| Bug Blocks: | 580566, 683532 | ||
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Description
RHEL Program Management
2010-12-01 14:10:04 UTC
Frantisek, I failed to find the upstream commit 224cb3e981f1b2f9f93dbd49eaef505d17d894c2 as https://bugzilla.redhat.com/show_bug.cgi?id=636771#c36 mentioned in 2.6.32-71.18.1.el6. static void deactivate_path(struct work_struct *work) is missing. OK. This patch just revert 224cb3e981f1b2f9f93dbd49eaef505d17d894c2. Code reviewed. kernel 2.6.32-71.18.1.el6 has reverted the commit. Set as Sanity Only. (In reply to comment #9) > OK. > This patch just revert 224cb3e981f1b2f9f93dbd49eaef505d17d894c2. > > Code reviewed. kernel 2.6.32-71.18.1.el6 has reverted the commit. > > Set as Sanity Only. You may have only done "Sanity Only" but FYI: Barry Donahue and I have done exhaustive testing (using NetAPp's test scripts) on NetApp storage in westford. 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 therefore 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/RHSA-2011-0283.html
Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
New Contents:
A Red Hat Enterprise Linux 6.0 host (with root on a local disk) with dm-multipath configured on multiple LUNs (Logical Unit Number) hit kernel panic (at scsi_error_handler) with target controller faults during an I/O operation on the dm-multipath devices. This was caused by multipath using the blk_abort_queue() function to allow lower latency path deactivation. The call to blk_abort_queue proved to be unsafe due to a race (between blk_abort_queue and scsi_request_fn). With this update, the race has been resolved and kernel panic no longer occurs on Red Hat Enterprise Linux 6.0 hosts.
*** Bug 692670 has been marked as a duplicate of this bug. *** |