Bug 1303184
| Summary: | kernel bug during removal of final snapshot of exclusively activated raid volume | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Corey Marthaler <cmarthal> |
| Component: | lvm2 | Assignee: | LVM and device-mapper development team <lvm-team> |
| lvm2 sub component: | Mirroring and RAID (RHEL6) | QA Contact: | cluster-qe <cluster-qe> |
| Status: | CLOSED DUPLICATE | Docs Contact: | |
| Severity: | high | ||
| Priority: | unspecified | CC: | agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, zkabelac |
| Version: | 6.8 | Keywords: | Regression, TestBlocker |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-01-29 19:50:30 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: | |||
This should be fixed in kernel-2.6.32-608.el6 *** This bug has been marked as a duplicate of bug 1220555 *** |
Description of problem: SCENARIO (raid10) - [snaphot_exclusive_raid] Snapshot an exclusively activated raid host-115.virt.lab.msp.redhat.com: lvcreate --type raid10 -i 2 -n exclusive_origin -L 100M raid_sanity Deactivate and then exclusively activate raid host-115.virt.lab.msp.redhat.com: lvchange -an /dev/raid_sanity/exclusive_origin host-115.virt.lab.msp.redhat.com: lvchange -aye /dev/raid_sanity/exclusive_origin Taking multiple snapshots of exclusive raid 1 2 3 4 5 Removing snapshots of exclusive raid 1 2 3 4 5 couldn't remove volume rsnap_5 BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff8109ed7b>] worker_thread+0x13b/0x2a0 PGD 0 Oops: 0002 [#1] SMP last sysfs file: /sys/devices/virtual/block/dm-2/uevent CPU 0 Modules linked in: dm_snapshot dm_bufio iptable_filter ip_tables autofs4 dm_raid raid10 raid1 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx sg sd_mod crc_t10dif be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i iw_cxgb4 cxgb4 cxgb3i libcxgbi iw_cxgb3 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 dm_multipath microcode i6300esb 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: 29, comm: md_misc/0 Not tainted 2.6.32-604.el6.x86_64 #1 Red Hat KVM RIP: 0010:[<ffffffff8109ed7b>] [<ffffffff8109ed7b>] worker_thread+0x13b/0x2a0 RSP: 0018:ffff88003ea6be40 EFLAGS: 00010046 RAX: ffff88003cfa13f8 RBX: ffff88000221a340 RCX: 0000000000000000 RDX: ffff88003cfa13f0 RSI: 0000000000000000 RDI: ffff88000221a340 RBP: ffff88003ea6bee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88003ea5eab0 R13: 0000000000000000 R14: ffff88003ea6bfd8 R15: ffff88000221a348 FS: 0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000008 CR3: 000000003b79e000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process md_misc/0 (pid: 29, threadinfo ffff88003ea68000, task ffff88003ea5eab0) Stack: 0000000000000000 0000000000000000 ffff88003ea6be60 ffff88003ea5f128 <d> ffff88003ea5eab0 ffff88003ea5eab0 ffff88003ea5eab0 ffff88000221a358 <d> 0000000000000000 ffff88003ea5eab0 ffffffff810a5ab0 ffff88003ea6be98 Call Trace: [<ffffffff810a5ab0>] ? autoremove_wake_function+0x0/0x40 [<ffffffff8109ec40>] ? worker_thread+0x0/0x2a0 [<ffffffff810a561e>] kthread+0x9e/0xc0 [<ffffffff8109ec40>] ? worker_thread+0x0/0x2a0 [<ffffffff8100c28a>] child_rip+0xa/0x20 [<ffffffff810a5580>] ? kthread+0x0/0xc0 [<ffffffff8100c280>] ? child_rip+0x0/0x20 Code: 44 8b 05 51 08 b4 00 48 83 ea 08 4c 8b 63 40 4c 8b 6a 18 45 85 c0 0f 85 de 00 00 00 48 8b 43 08 48 89 53 30 48 8b 30 48 8b 48 08 <48> 89 4e 08 48 89 31 48 89 00 48 89 40 08 c7 03 00 00 00 00 fb RIP [<ffffffff8109ed7b>] worker_thread+0x13b/0x2a0 RSP <ffff88003ea6be40> CR2: 0000000000000008 ---[ end trace 6f5093bce0d99787 ]--- Kernel panic - not syncing: Fatal exception Pid: 29, comm: md_misc/0 Tainted: G D -- ------------ 2.6.32-604.el6.x86_64 #1 Call Trace: [<ffffffff81542000>] ? panic+0xa7/0x179 [<ffffffff81546e24>] ? oops_end+0xe4/0x100 [<ffffffff810508cb>] ? no_context+0xfb/0x260 [<ffffffff81045f28>] ? pvclock_clocksource_read+0x58/0xd0 [<ffffffff81050b55>] ? __bad_area_nosemaphore+0x125/0x1e0 [<ffffffff81063c5e>] ? account_entity_enqueue+0x7e/0x90 [<ffffffff81050c23>] ? bad_area_nosemaphore+0x13/0x20 [<ffffffff8105131c>] ? __do_page_fault+0x30c/0x500 [<ffffffff81073f24>] ? enqueue_task_fair+0x64/0x100 [<ffffffff8105ec8c>] ? check_preempt_curr+0x7c/0x90 [<ffffffff8106b5ae>] ? try_to_wake_up+0x24e/0x3e0 [<ffffffff8106b752>] ? default_wake_function+0x12/0x20 [<ffffffff81548d8e>] ? do_page_fault+0x3e/0xa0 [<ffffffff815460f5>] ? page_fault+0x25/0x30 [<ffffffff8109ed7b>] ? worker_thread+0x13b/0x2a0 [<ffffffff810a5ab0>] ? autoremove_wake_function+0x0/0x40 [<ffffffff8109ec40>] ? worker_thread+0x0/0x2a0 [<ffffffff810a561e>] ? kthread+0x9e/0xc0 [<ffffffff8109ec40>] ? worker_thread+0x0/0x2a0 [<ffffffff8100c28a>] ? child_rip+0xa/0x20 [<ffffffff810a5580>] ? kthread+0x0/0xc0 [<ffffffff8100c280>] ? child_rip+0x0/0x20 Version-Release number of selected component (if applicable): 2.6.32-604.el6.x86_64 lvm2-2.02.140-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 lvm2-libs-2.02.140-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 lvm2-cluster-2.02.140-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 udev-147-2.66.el6 BUILT: Mon Jan 18 02:42:20 CST 2016 device-mapper-1.02.114-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 device-mapper-libs-1.02.114-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 device-mapper-event-1.02.114-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 device-mapper-event-libs-1.02.114-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 device-mapper-persistent-data-0.6.0-1.el6 BUILT: Wed Jan 20 11:23:29 CST 2016 cmirror-2.02.140-3.el6 BUILT: Thu Jan 21 05:40:10 CST 2016 How reproducible: Often