[LU-9257] mds-survey: zpool hung when export the pool after the test

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

This issue was created by maloo for nasf <[e-mail]>

Please provide additional information about the failure here.

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/6c3598ea-12fd-11e7-9073-5254006e85c2.

Here is the log on the MDS

13:14:26:[20760.110137] INFO: task zpool:14086 blocked for more than 120 seconds.
13:14:26:[20760.112284] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
13:14:26:[20760.114493] zpool           D 0000000000000000     0 14086  14083 0x00000080
13:14:26:[20760.117008]  ffff88005b3b3d08 0000000000000086 ffff88001487af10 ffff88005b3b3fd8
13:14:26:[20760.119494]  ffff88005b3b3fd8 ffff88005b3b3fd8 ffff88001487af10 ffff8800588aa398
13:14:26:[20760.121977]  ffff8800588aa348 ffff8800588aa3a0 ffff8800588aa370 0000000000000000
13:14:26:[20760.124361] Call Trace:
13:14:26:[20760.126202]  [<ffffffff8168bd09>] schedule+0x29/0x70
13:14:26:[20760.128488]  [<ffffffffa06e467d>] cv_wait_common+0x10d/0x130 [spl]
13:14:26:[20760.130602]  [<ffffffff810b17d0>] ? wake_up_atomic_t+0x30/0x30
13:14:26:[20760.132863]  [<ffffffffa06e46b5>] __cv_wait+0x15/0x20 [spl]
13:14:26:[20760.135050]  [<ffffffffa0f68eeb>] spa_evicting_os_wait+0x4b/0x90 [zfs]
13:14:26:[20760.137287]  [<ffffffffa0f5c0b7>] spa_export_common+0x297/0x400 [zfs]
13:14:26:[20760.139389]  [<ffffffffa0f5c25b>] spa_export+0x1b/0x20 [zfs]
13:14:27:[20760.141682]  [<ffffffffa0f95484>] zfs_ioc_pool_export+0x34/0x40 [zfs]
13:14:27:[20760.143939]  [<ffffffffa0f951ec>] zfsdev_ioctl+0x4dc/0x520 [zfs]
13:14:27:[20760.146187]  [<ffffffff812120d5>] do_vfs_ioctl+0x2d5/0x4b0
13:26:27:[20760.148365]  [<ffffffff81692131>] ? __do_page_fault+0x171/0x450
13:26:27:[20760.150541]  [<ffffffff81212351>] SyS_ioctl+0xa1/0xc0
13:26:27:[20760.152630]  [<ffffffff81696c49>] system_call_fastpath+0x16/0x1b