[LU-6199] ldiskfs kernel warnings at ldiskfs_flush_unwritten_io+0x74 Created: 03/Feb/15 Updated: 03/Jun/15 Resolved: 10/Feb/15 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | Lustre 2.7.0 |
| Fix Version/s: | Lustre 2.7.0 |
| Type: | Bug | Priority: | Major |
| Reporter: | Bob Glossman (Inactive) | Assignee: | Bob Glossman (Inactive) |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Environment: |
el6.6 kernels |
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| Issue Links: |
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| Severity: | 3 | ||||
| Rank (Obsolete): | 17328 | ||||
| Description |
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new warnings occasionally seen in ldiskfs due to checking code new in upstream ext4 code for el6.6. stack traces look like ldiskfs_truncate() ..... -> ldiskfs_flush_unwritten_io() lustre calls some ext4/ldiskfs entry points without locking i_mutex. It must do so in order to avoid deadlocks. This triggers a WARN_ON_ONCE() check that is in el6.6 and newer kernels. ldiskfs patch series for future kernels took care of this, but the patch series for el6.6 did not. Need to add a patch to remove the check for ldiskfs on el6.6 |
| Comments |
| Comment by Gerrit Updater [ 03/Feb/15 ] |
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Bob Glossman (bob.glossman@intel.com) uploaded a new patch: http://review.whamcloud.com/13604 |
| Comment by Gerrit Updater [ 10/Feb/15 ] |
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Oleg Drokin (oleg.drokin@intel.com) merged in patch http://review.whamcloud.com/13604/ |
| Comment by Jodi Levi (Inactive) [ 10/Feb/15 ] |
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Patch landed to Master. |