Bug 1105732
| Summary: | "Attempted to decrement suspended device counter below zero" when deactivating VG containing cache volumes | |||
|---|---|---|---|---|
| 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 DUPLICATE | Docs Contact: | ||
| Severity: | medium | |||
| Priority: | unspecified | CC: | agk, cmarthal, heinzm, jbrassow, msnitzer, prajnoha, zkabelac | |
| Version: | 7.0 | Keywords: | Reopened | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | x86_64 | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | Bug Fix | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1185916 (view as bug list) | Environment: | ||
| Last Closed: | 2015-01-26 15:58:20 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, 1185916 | |||
|
Description
Corey Marthaler
2014-06-06 20:45:36 UTC
[root@bp-01 ~]# lvcreate -s -L 500M -n snap vg/lv Snapshot of cache LV is not yet supported. Snapshots are not currently supported. We can verify that fact to fix this bug. A new feature bug will need to be created to add snapshot support. I am marking this bug a duplicate of bug 1091553. *** This bug has been marked as a duplicate of bug 1091553 *** This message still exists and apparently didn't require snaps of cache volumes to hit. I'll try and look deeper into what's causing this, but could it be a well timed interupted remove attempt, followed by another remove? # Test output (interupted during remove) Removing cache pool cache_sanity/1K_cache ^C Jan 7 16:40:48 host-110 qarshd[4800]: Running cmdline: lvremove -f /dev/cache_sanity/1K_cache Jan 7 16:40:49 host-110 qarshd[4800]: Sending child 4803 signal 2 Jan 7 16:41:09 host-110 multipathd: dm-5: mapname not found for 253:5 Jan 7 16:41:09 host-110 multipathd: uevent trigger error Jan 7 16:41:09 host-110 multipathd: dm-4: mapname not found for 253:4 Jan 7 16:41:09 host-110 multipathd: uevent trigger error Jan 7 16:41:09 host-110 multipathd: dm-3: mapname not found for 253:3 Jan 7 16:41:09 host-110 multipathd: uevent trigger error Jan 7 16:41:09 host-110 multipathd: dm-5: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-4: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-5: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-3: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-4: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-3: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-2: remove map (uevent) Jan 7 16:41:09 host-110 multipathd: dm-2: devmap not registered, can't remove Jan 7 16:41:09 host-110 multipathd: dm-2: remove map (uevent) [root@host-110 ~]# pvscan PV /dev/sdb1 VG cache_sanity lvm2 [499.00 MiB / 486.92 MiB free] PV /dev/sdc1 VG cache_sanity lvm2 [499.00 MiB / 486.95 MiB free] PV /dev/vda2 VG rhel_host-110 lvm2 [7.51 GiB / 40.00 MiB free] PV /dev/sdf1 lvm2 [15.00 GiB] PV /dev/sdd1 lvm2 [15.00 GiB] Total: 5 [38.48 GiB] / in use: 3 [8.48 GiB] / in no VG: 2 [30.00 GiB] [root@host-110 ~]# vgremove cache_sanity Do you really want to remove volume group "cache_sanity" containing 1 logical volumes? [y/n]: y Do you really want to remove active logical volume 1K_origin? [y/n]: y Flushing cache for 1K_origin. Attempted to decrement suspended device counter below zero. Logical volume "1K_cache" successfully removed Logical volume "1K_origin" successfully removed Volume group "cache_sanity" successfully removed [root@host-110 ~]# /usr/tests/sts-rhel7.1/lvm2/bin/lvm_rpms 3.10.0-219.el7.x86_64 lvm2-2.02.114-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 lvm2-libs-2.02.114-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 lvm2-cluster-2.02.114-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 device-mapper-1.02.92-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 device-mapper-libs-1.02.92-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 device-mapper-event-1.02.92-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 device-mapper-event-libs-1.02.92-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 device-mapper-persistent-data-0.4.1-2.el7 BUILT: Wed Nov 12 12:39:46 CST 2014 cmirror-2.02.114-4.el7 BUILT: Wed Jan 7 07:07:47 CST 2015 I'm not able to reproduce this bug with my lvm2 code. Is this bug reproducible with 2.02.115 build ? If so - please attach 'lvs -a' before you run 'vgremove -vvvv vg' and append this vgremove debug trace. Kernel messages from Comment 3 are unrelated - they go from multipathd - and they are weird and may require fixes - but should not be related to lvm2. Unless multipath devices are involved as PV for your VG ? Then please add 'dmsetup table' and 'pvs' Yes, I've see this a couple times now with the latest rpms. I'm still looking for a definative reproducer however. First reproduction: [root@host-113 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Cpy%Sync Devices cache_2_83500 cache_2_8350 Cwims-C--- 4.00g [cache_2_83500_fast] [cache_2_83500_corig] 0.04 2.83 0.00 cache_2_83500_corig(0) [cache_2_83500_corig] cache_2_8350 owi-aoC--- 4.00g /dev/sde1(0) [cache_2_83500_fast] cache_2_8350 Cwi---C--- 1.00g 0.04 2.83 0.00 cache_2_83500_fast_cdata(0) [cache_2_83500_fast_cdata] cache_2_8350 Cwi-ao---- 1.00g /dev/sdg1(0) [cache_2_83500_fast_cmeta] cache_2_8350 ewi-ao---- 8.00m /dev/sdg1(256) [lvol0_pmspare] cache_2_8350 ewi------- 8.00m /dev/sdb1(0) [root@host-113 ~]# vgremove cache_2_8350 Do you really want to remove volume group "cache_2_8350" containing 1 logical volumes? [y/n]: y Do you really want to remove active logical volume cache_2_83500? [y/n]: y Attempted to decrement suspended device counter below zero. Logical volume "cache_2_83500_fast" successfully removed Logical volume "cache_2_83500" successfully removed Volume group "cache_2_8350" successfully removed Second reproduction: [root@host-119 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Cpy%Sync Devices cache_5_4770 cache_5_477 CwimsoC--- 4.00g [cache_5_4770_fast] [cache_5_4770_corig] 0.00 2.83 100.00 cache_5_4770_corig(0) [cache_5_4770_corig] cache_5_477 owi-aoC--- 4.00g /dev/sdb1(0) [cache_5_4770_fast] cache_5_477 Cwi---C--- 1.00g 0.00 2.83 100.00 cache_5_4770_fast_cdata(0) [cache_5_4770_fast_cdata] cache_5_477 Cwi-ao---- 1.00g /dev/sdd1(0) [cache_5_4770_fast_cmeta] cache_5_477 ewi-ao---- 8.00m /dev/sdd1(256) [lvol0_pmspare] cache_5_477 ewi------- 8.00m /dev/sdc2(0) [root@host-119 ~]# lvchange -prw /dev/cache_5_477/cache_5_4770 Logical volume "cache_5_4770" is already writable [root@host-119 ~]# lvchange -pr /dev/cache_5_477/cache_5_4770 Attempted to decrement suspended device counter below zero. Logical volume "cache_5_4770" changed. 3.10.0-223.el7.x86_64 lvm2-2.02.115-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 lvm2-libs-2.02.115-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 lvm2-cluster-2.02.115-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 device-mapper-1.02.93-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 device-mapper-libs-1.02.93-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 device-mapper-event-1.02.93-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 device-mapper-event-libs-1.02.93-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 device-mapper-persistent-data-0.4.1-2.el7 BUILT: Wed Nov 12 12:39:46 CST 2014 cmirror-2.02.115-2.el7 BUILT: Thu Jan 22 06:09:14 CST 2015 Beginning at comment #3, this bug has changed from its original problem (inability to resume the cache device) to a more benign (warning only) issue. The original bug has been fixed by disabling snapshots of cache LVs. I've cloned this bug to address the second issue separately. *** This bug has been marked as a duplicate of bug 1091553 *** |