Bug 1104821
| Summary: | Buffer I/O errors when configuring cache volumes | ||||||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | Corey Marthaler <cmarthal> | ||||
| Component: | lvm2 | Assignee: | Zdenek Kabelac <zkabelac> | ||||
| lvm2 sub component: | Cache Logical Volumes | QA Contact: | Cluster QE <mspqa-list> | ||||
| Status: | CLOSED ERRATA | Docs Contact: | |||||
| Severity: | medium | ||||||
| Priority: | unspecified | CC: | agk, heinzm, jbrassow, jharriga, msnitzer, nperic, prajnoha, zkabelac | ||||
| Version: | 7.0 | ||||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | lvm2-2.02.111-1.el7 | Doc Type: | Bug Fix | ||||
| Doc Text: |
Initial prove-of-concept cache implementation was not correctly handling numerous code paths and may have resulted into incorrectly loaded dm-table producing buffer-io errors.
This has been fixed with newer release of lvm2.
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Story Points: | --- | ||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-03-05 13:08:46 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: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 1119326 | ||||||
| Attachments: |
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Description
Corey Marthaler
2014-06-04 18:28:19 UTC
This appears to be the easiest way to repo this issue: [root@host-073 ~]# pvscan PV /dev/sda1 VG cache_sanity lvm2 [15.00 GiB / 15.00 GiB free] PV /dev/sdb1 VG cache_sanity lvm2 [15.00 GiB / 15.00 GiB free] PV /dev/sdg1 VG cache_sanity lvm2 [15.00 GiB / 15.00 GiB free] PV /dev/sdf1 VG cache_sanity lvm2 [15.00 GiB / 15.00 GiB free] PV /dev/vda2 VG rhel_host-073 lvm2 [7.51 GiB / 0 free] Total: 5 [67.49 GiB] / in use: 5 [67.49 GiB] / in no VG: 0 [0 ] [root@host-073 ~]# lvcreate -L 4G -n corigin cache_sanity /dev/sda1 Logical volume "corigin" created [root@host-073 ~]# lvcreate -L 2G -n display_cache cache_sanity /dev/sdg1 Logical volume "display_cache" created [root@host-073 ~]# lvcreate -L 8M -n display_cache_meta cache_sanity /dev/sdg1 Logical volume "display_cache_meta" created # This command is the first to cause the IO errors [root@host-073 ~]# lvconvert -vvvv --type cache-pool --cachemode writeback --poolmetadata cache_sanity/display_cache_meta cache_sanity/display_cache > /tmp/lvconvert 2>&1 Jun 4 14:46:11 host-073 kernel: bio: create slab <bio-0> at 0 Jun 4 14:47:41 host-073 kernel: Buffer I/O error on device dm-3, logical block 524272 Jun 4 14:47:41 host-073 kernel: Buffer I/O error on device dm-3, logical block 524272 [root@host-073 ~]# dmsetup info -c Name Maj Min Stat Open Targ Event UUID cache_sanity-display_cache_cdata 253 5 L--w 0 1 0 LVM-QIgxlKHIAc56ZTD88xAnpG9LyyHrI38K7ME5rOK28epIOsaauqPBFdxcS2Umuk7N cache_sanity-display_cache_cmeta 253 4 L--w 0 1 0 LVM-QIgxlKHIAc56ZTD88xAnpG9LyyHrI38KCXYQ1smXUF8E8PSHZvm6fMgUibfOD7eO cache_sanity-display_cache 253 3 L--w 0 1 0 LVM-QIgxlKHIAc56ZTD88xAnpG9LyyHrI38KqLk2PGyBzWd7vXzDgx0K5pewciooc28V cache_sanity-corigin 253 2 L--w 0 1 0 LVM-QIgxlKHIAc56ZTD88xAnpG9LyyHrI38KbGDoebUZDWWTf1mEFrOKw643IxWGrZMa rhel_host--073-swap 253 1 L--w 2 1 0 LVM-pJyq8YF6yCLhwVVljtEDE79H2YAGBoYdMY6FeFiJST2GfHQ6V2fRkjPXi4oeTk3U rhel_host--073-root 253 0 L--w 1 1 0 LVM-pJyq8YF6yCLhwVVljtEDE79H2YAGBoYdj1PeSNEOjGv8FFPTnYzxf9fKCJKahTAC [root@host-073 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Devices corigin cache_sanity -wi-a----- 4.00g /dev/sda1(0) display_cache cache_sanity Cwi-a-C--- 2.00g display_cache_cdata(0) [display_cache_cdata] cache_sanity Cwi-a-C--- 2.00g /dev/sdg1(0) [display_cache_cmeta] cache_sanity ewi-a-C--- 8.00m /dev/sdg1(512) [lvol0_pmspare] cache_sanity ewi------- 8.00m /dev/sda1(1024) root rhel_host-073 -wi-ao---- 6.71g /dev/vda2(205) swap rhel_host-073 -wi-ao---- 820.00m /dev/vda2(0) Created attachment 902313 [details]
-vvvv of the lvconvert
I expect this bug to be already fixed, please retest. Cannot find any weird messages during the cache creation/conversion. it was successfully converted [root@tardis-03 log]# lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert corigin cache_sanity -wi-a----- 4.00g display_cache cache_sanity Cwi---C--- 2.00g [display_cache_cdata] cache_sanity Cwi------- 2.00g [display_cache_cmeta] cache_sanity ewi------- 8.00m [lvol0_pmspare] cache_sanity ewi------- 8.00m home rhel_tardis-03 -wi-ao---- 224.82g root rhel_tardis-03 -wi-ao---- 50.00g swap rhel_tardis-03 -wi-ao---- 4.00g Marking VERIFIEd with: 3.10.0-223.el7.x86_64 lvm2-2.02.114-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 lvm2-libs-2.02.114-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 lvm2-cluster-2.02.114-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 device-mapper-1.02.92-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 device-mapper-libs-1.02.92-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 device-mapper-event-1.02.92-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 device-mapper-event-libs-1.02.92-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 device-mapper-persistent-data-0.4.1-2.el7 BUILT: Wed Nov 12 19:39:46 CET 2014 cmirror-2.02.114-5.el7 BUILT: Wed Jan 14 15:42:28 CET 2015 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. https://rhn.redhat.com/errata/RHBA-2015-0513.html |