This issue was created by maloo for alexey lyashkov <c17817@cray.com>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/34a5b227-36f5-441f-94d6-31914d7b4004

[14277.488692] WARNING: MMP writes to pool 'lustre-ost5' have not succeeded in over 60019 ms; suspending pool. Hrtime 14277488675560
[14277.490967] Kernel panic - not syncing: Pool 'lustre-ost5' has encountered an uncorrectable I/O failure and the failure mode property for this pool is set to panic.
[14277.493640] CPU: 1 PID: 519418 Comm: mmp Kdump: loaded Tainted: P OE --------- - - 4.18.0-240.22.1.el8_lustre.x86_64 #1
[14277.495797] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[14277.496854] Call Trace:
[14277.497397] dump_stack+0x5c/0x80
[14277.498052] panic+0xe7/0x2a9
[14277.499014] zio_suspend+0x103/0x110 [zfs]
[14277.499843] mmp_thread+0x61c/0x710 [zfs]
[14277.500651] ? mmp_write_uberblock+0x700/0x700 [zfs]
[14277.501615] ? __thread_exit+0x20/0x20 [spl]
[14277.502438] thread_generic_wrapper+0x6f/0x80 [spl]
[14277.503383] kthread+0x112/0x130
[14277.504000] ? kthread_flush_work_fn+0x10/0x10
[14277.504827] ret_from_fork+0x35/0x40