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Oracle Linux: Serv CELLSRV hang detected Issue (Doc ID 2691821.1)

Last updated on JULY 17, 2020

Applies to:

Linux OS - Version Oracle Linux 7.0 to Oracle Linux 7.8 with Unbreakable Enterprise Kernel [4.14.35] [Release OL7 to OL7U8]
Linux x86-64


Server experienced hung state with following error:

RS-7445 [Serv CELLSRV hang detected] [It will be restarted] [] [] [] [] [] [] [] [] [] []
2020-02-03 04:47:49.962 :00033157: stopping/cleaning up service CELLSRV
INFO: task systemd-udevd:5319 blocked for more than 120 seconds.
Tainted: G O 4.1.12-124.26.12.el7uek.x86_64 #2
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
systemd-udevd D ffff881fff0d8140 0 5319 1 0x00000080
ffff881fedb2bc68 0000000000000082 ffff881fedb2bc98 ffff881fe33b6200
ffff881fedb2bc88 ffff881fedb2c000 ffff881fe5338f00 0000000000000200
ffff881fdfd3a480 ffff881fe7e15000 ffff881fedb2bc88 ffffffff81751577
Call Trace:
[<ffffffff81751577>] schedule+0x37/0x90
[<ffffffff813264dd>] blk_mq_freeze_queue_wait+0x5d/0xd0
[<ffffffff810d3480>] ? prepare_to_wait_event+0xf0/0xf0
[<ffffffff813285de>] blk_mq_freeze_queue+0x1e/0x30
[<ffffffffc004ee0c>] nvme_revalidate_disk+0xec/0x350 [nvme_core]
[<ffffffff8133136f>] rescan_partitions+0x8f/0x2c0
[<ffffffff8132bec9>] __blkdev_reread_part+0x69/0x70
[<ffffffff8132befc>] blkdev_reread_part+0x2c/0x50
[<ffffffff8132c825>] blkdev_ioctl+0x385/0x990
[<ffffffff812591d1>] block_ioctl+0x41/0x50
[<ffffffff81232203>] do_vfs_ioctl+0x323/0x530
[<ffffffff81137d74>] ? __audit_syscall_entry+0xb4/0x110
[<ffffffff8102716c>] ? do_audit_syscall_entry+0x6c/0x70
[<ffffffff81232491>] SyS_ioctl+0x81/0xa0
[<ffffffff8175689f>] ? system_call_after_swapgs+0xe9/0x190
[<ffffffff81756898>] ? system_call_after_swapgs+0xe2/0x190
[<ffffffff81756891>] ? system_call_after_swapgs+0xdb/0x190
[<ffffffff8175695e>] system_call_fastpath+0x18/0xea
INFO: task mdadm:9705 blocked for more than 120 seconds.
Tainted: G O 4.1.12-124.26.12.el7uek.x86_64 #2
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
mdadm D ffff881fff598140 0 9705 9691 0x00000080
ffff880ddd973a08 0000000000000082 0000000000000001 ffff881fe7fb7000
0000000000000000 ffff880ddd974000 ffff881fe46a09dc ffff881fe7fb7000
00000000ffffffff ffff881fe46a09e0 ffff880ddd973a28 ffffffff81751577


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