Bug 732142
| Summary: | "Internal error: Performing unsafe table load" error during mirror image split | ||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | Corey Marthaler <cmarthal> | ||||
| Component: | lvm2 | Assignee: | Jonathan Earl Brassow <jbrassow> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Corey Marthaler <cmarthal> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 6.2 | CC: | agk, dwysocha, heinzm, jbrassow, mbroz, prajnoha, prockai, thornber, zkabelac | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | lvm2-2.02.87-2.el6 | Doc Type: | Bug Fix | ||||
| Doc Text: |
Before, an improper activation sequence was used while performing an image split operation. That caused a device-mapper table to be loaded while some of processed devices were known to be suspended. This has been fixed and the activation sequence has been reordered so that the table is always loaded at proper time.
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Story Points: | --- | ||||
| Clone Of: | |||||||
| : | 749359 (view as bug list) | Environment: | |||||
| Last Closed: | 2011-12-06 16:59:49 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: | |||||||
| Bug Blocks: | 743047, 749359 | ||||||
| Attachments: |
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Description
Corey Marthaler
2011-08-19 23:14:02 UTC
Bug in _split_mirror_images() in mirror.c: It has the sequence suspend, commit, activate, resume. That sequence is not permitted - it must be suspend, commit, resume. The activate has to be handled another way e.g. before, after, or implicitly by the existing suspend+resume detecting the requirement for it and handling it internally. The error message is a new message to detect bugs like this so we can get them fixed. The bug itself is not a regression, as it'll have been doing the wrong thing for a long time. But in the unlikely event we find it impossible to fix this and any other similar bugs before the release, we'll disable the error message and hide the bugs again. committed upstream for LVM version 2.02.89 Created attachment 521084 [details]
Patch committed upstream to fix this bug.
Fix verified. No longer seeing the "Performing unsafe table load" errors while splitting images. 2.6.32-198.el6.x86_64 lvm2-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 lvm2-libs-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 lvm2-cluster-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 udev-147-2.38.el6 BUILT: Fri Sep 9 16:25:50 CDT 2011 device-mapper-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 device-mapper-libs-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 device-mapper-event-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 device-mapper-event-libs-1.02.66-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 cmirror-2.02.87-3.el6 BUILT: Wed Sep 21 09:54:55 CDT 2011 SCENARIO - [split_off_multiple_images] Create a mirror with many legs and then split off multiple images creating multiple mirrors taft-01: lvcreate -m 4 -n split_multiple_images -L 300M split_image Waiting until all mirrors become fully syncd... 0/1 mirror(s) are fully synced: ( 79.17% ) 1/1 mirror(s) are fully synced: ( 100.00% ) splitting off multiple legs... Deactivating mirror new... and removing Deactivating mirror split_multiple_images... and removing
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:
Before, an improper activation sequence was used while performing an image split operation. That caused a device-mapper table to be loaded while some of devices processed were known to be suspended. This has been fixed and the activation sequence has been reordered so that the table is always loaded at proper time.
Technical note updated. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
Diffed Contents:
@@ -1 +1 @@
-Before, an improper activation sequence was used while performing an image split operation. That caused a device-mapper table to be loaded while some of devices processed were known to be suspended. This has been fixed and the activation sequence has been reordered so that the table is always loaded at proper time.+Before, an improper activation sequence was used while performing an image split operation. That caused a device-mapper table to be loaded while some of processed devices were known to be suspended. This has been fixed and the activation sequence has been reordered so that the table is always loaded at proper time.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1522.html |