Bug 830177
| Summary: | Reshape of RAID volume is broken after trying to stop all MD devices | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Lukasz Dorau <lukasz.dorau> |
| Component: | mdadm | Assignee: | Jes Sorensen <Jes.Sorensen> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | urgent | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 17 | CC: | agk, dledford, ed.ciechanowski, Jes.Sorensen, maciej.patelczyk |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-07-11 23:53:25 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
The patch for this bug is already upstream: http://neil.brown.name/git?p=mdadm;a=commitdiff;h=e1993023991a6fa6539cc604b4b3d6718833250d mdadm-3.2.5-3.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/mdadm-3.2.5-3.fc17 mdadm-3.2.5-3.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/mdadm-3.2.5-3.fc16 Package mdadm-3.2.5-3.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing mdadm-3.2.5-3.fc16' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-9931/mdadm-3.2.5-3.fc16 then log in and leave karma (feedback). mdadm-3.2.5-3.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report. mdadm-3.2.5-3.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: Reshape of a RAID volume is broken after trying to stop all MD devices. Version-Release number of selected component (if applicable): - mdadm-3.2.3-6.fc17.x86_64 How reproducible: Always Steps to Reproduce: 1. Create an IMSM container and a volume with a spare: # mdadm -CR /dev/md/imsm -e imsm -n 4 /dev/sda /dev/sdb /dev/sdc /dev/sdd # mdadm -CR /dev/md/vol0 -l0 --size 2G -n3 /dev/sda /dev/sdb /dev/sdc 2. Run OLCE (or migration): # export MDADM_EXPERIMENTAL=1 # mdadm -G /dev/md127 --raid-devices=4 3. Wait until reshape starts. 4. Try to stop all MD devices: # mdadm -Ss Actual results: MD devices are not stopped. Reshape seems to be finished (metadata is in normal/clean state) but it is not finished, it is broken. Data are corrupted. mdadm: stopped /dev/md126 mdadm: Cannot get exclusive access to /dev/md127:Perhaps a running process, mounted filesystem or active volume group? mdadm: Cannot get exclusive access to /dev/md127:Perhaps a running process, mounted filesystem or active volume group? mdadm: Cannot get exclusive access to /dev/md127:Perhaps a running process, mounted filesystem or active volume group? mdadm: /dev/md/vol0: could not set level to raid0 # cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] [raid0] md126 : active raid0 sda[3] sdb[2] sdc[1] sdd[0] 8388608 blocks super external:/md127/0 128k chunks md127 : inactive sda[3](S) sdb[2](S) sdc[1](S) sdd[0](S) 4420 blocks super external:imsm unused devices: <none> Expected results: Reshape should be stopped correctly on actual checkpoint.