bug24209_bugin_userspace_mpp_blockhandling.txt
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Duplicate |
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| duplicates |
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MMP update | Resolved |
[LU-268] Possible bug in userspace block handling when enabling MPP Created: 03/May/11 Updated: 28/Jun/11 Resolved: 03/May/11 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.0.0, Lustre 2.1.0, Lustre 1.8.6 |
| Fix Version/s: | Lustre 1.8.6 |
| Type: | Bug | Priority: | Minor |
| Reporter: | John Salinas (Inactive) | Assignee: | Johann Lombardi (Inactive) |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Attachments: |
bug24209_bugin_userspace_mpp_blockhandling.txt
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| Issue Links: |
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| Severity: | 3 | ||||||||
| Bugzilla ID: | 24,209 | ||||||||
| Rank (Obsolete): | 10237 | ||||||||
| Description |
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When choosing a block for multiple mount protection near the end of the file system it can fail. There is a patch that changes mmp_blk to (long long)mmp_blk which should prevent the MMP block from overwriting block filesystem data. A patch has been provided but it has not been inspected from bug24209 mmp_blk64.patch. We would like this patch to be evaluated. We are concerned if we have current customers who have full filesystems and enable MPP they could be putting data at risk. |
| Comments |
| Comment by Johann Lombardi (Inactive) [ 03/May/11 ] |
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The MMP patches i sent to the linux-ext4 mailing list yesterday should fix this problem. |
| Comment by Andreas Dilger [ 03/May/11 ] |
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Assign to Johann, since he is already working on this. Maybe best to just close it as a duplicate? |
| Comment by Johann Lombardi (Inactive) [ 03/May/11 ] |
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Will be fixed in |