Bug 1130168
| Summary: | DM_DEFERRED_REMOVE support is missing from dmsetup | ||||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | Alasdair Kergon <agk> | ||||||
| Component: | lvm2 | Assignee: | Mikuláš Patočka <mpatocka> | ||||||
| lvm2 sub component: | dmsetup (RHEL6) | QA Contact: | Cluster QE <mspqa-list> | ||||||
| Status: | CLOSED ERRATA | Docs Contact: | |||||||
| Severity: | high | ||||||||
| Priority: | medium | CC: | agk, bmarzins, cmarthal, coughlan, dwysocha, heinzm, jbrassow, mpatocka, msnitzer, prajnoha, prockai, rbalakri, tlavigne, xhe, yanwang, zkabelac | ||||||
| Version: | 6.6 | ||||||||
| Target Milestone: | pre-dev-freeze | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | lvm2-2.02.110-1.el6 | Doc Type: | Enhancement | ||||||
| Doc Text: |
dmsetup remove gains a new flag --deferred.
If this flag is specified and the device is open, it is scheduled to be deleted later, when it is gets closed.
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Story Points: | --- | ||||||
| Clone Of: | 1109431 | Environment: | |||||||
| Last Closed: | 2014-10-14 08:25:53 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: | 1109431 | ||||||||
| Bug Blocks: | 1107315 | ||||||||
| Attachments: |
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Description
Alasdair Kergon
2014-08-14 13:16:37 UTC
Created attachment 926857 [details]
The patch to fix this bug
(patch needs a small modification to deal with an ABI break we can easily avoid) Created attachment 927190 [details]
The updated patch
A new patch that maintains ABI compatibility.
https://lists.fedorahosted.org/pipermail/lvm2-commits/2014-August/002639.html https://lists.fedorahosted.org/pipermail/lvm2-commits/2014-August/002657.html Fix verified using the test case given in bug 1109431. OLD KERNEL: 2.6.32-495.el6.x86_64 lvm2-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 lvm2-libs-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 lvm2-cluster-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 udev-147-2.57.el6 BUILT: Thu Jul 24 08:48:47 CDT 2014 device-mapper-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-libs-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-event-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-event-libs-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-persistent-data-0.3.2-1.el6 BUILT: Fri Apr 4 08:43:06 CDT 2014 cmirror-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 [root@host-025 ~]# lvcreate --type mirror --alloc anywhere -L 1G -n mirror vg1 Logical volume "mirror" created [root@host-025 ~]# mkfs.ext3 /dev/vg1/mirror mke2fs 1.41.12 (17-May-2010) [...] [root@host-025 ~]# mount /dev/vg1/mirror /mnt/mirror/ [root@host-025 ~]# dmsetup remove /dev/vg1/mirror --deferred [root@host-025 ~]# umount /dev/vg1/mirror [HANG] EXT3-fs (dm-5): mounted filesystem with ordered data mode ------------[ cut here ]------------ WARNING: at kernel/workqueue.c:366 flush_cpu_workqueue+0x8d/0x90() (Not tainted) Hardware name: KVM Modules linked in: ext3 jbd dm_raid raid10 raid1 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx dm_snapshot dm_bufio iptable_filter ip_tables autofs4 sg sd_mod crc_t10dif be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i libcxgbi cxgb3 mdio ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi microcode virtio_balloon virtio_net i2c_piix4 i2c_core ext4 jbd2 mbcache virtio_blk virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib] Pid: 7, comm: events/0 Not tainted 2.6.32-495.el6.x86_64 #1 Call Trace: [<ffffffff81074df7>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff81074e4a>] ? warn_slowpath_null+0x1a/0x20 [<ffffffff810983dd>] ? flush_cpu_workqueue+0x8d/0x90 [<ffffffff8109837a>] ? flush_cpu_workqueue+0x2a/0x90 [<ffffffff81087fdb>] ? try_to_del_timer_sync+0x7b/0xe0 [<ffffffff81098e84>] ? flush_workqueue+0x54/0x80 [<ffffffff81098ec5>] ? flush_scheduled_work+0x15/0x20 NEW KERNEL: 2.6.32-500.el6.x86_64 lvm2-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 lvm2-libs-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 lvm2-cluster-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 udev-147-2.57.el6 BUILT: Thu Jul 24 08:48:47 CDT 2014 device-mapper-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-libs-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-event-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-event-libs-1.02.90-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 device-mapper-persistent-data-0.3.2-1.el6 BUILT: Fri Apr 4 08:43:06 CDT 2014 cmirror-2.02.111-2.el6 BUILT: Mon Sep 1 06:46:43 CDT 2014 [root@host-025 ~]# lvcreate --type mirror --alloc anywhere -L 1G -n mirror vg1 Logical volume "mirror" created [root@host-025 ~]# mkfs.ext3 /dev/vg1/mirror mke2fs 1.41.12 (17-May-2010) [root@host-025 ~]# mount /dev/vg1/mirror /mnt/mirror/ [root@host-025 ~]# dmsetup remove /dev/vg1/mirror* --deferred [root@host-025 ~]# umount /dev/vg1/mirror [root@host-025 ~]# df -h | grep mirror [root@host-025 ~]# Sep 4 17:56:06 host-025 kernel: device-mapper: ioctl: remove_all left 5 open device(s) 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. http://rhn.redhat.com/errata/RHBA-2014-1387.html |