Details
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Bug
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Resolution: Fixed
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Critical
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Lustre 2.10.3
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None
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sles12sp3
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2
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9223372036854775807
Description
This looks like a duplicate of LU-7994. But have the patch from that LU applied.
umount filesystem will get stuck.
r511i7n14 /proc/97511 # cat stack [<ffffffffa10c5df6>] ll_kill_super+0x86/0x170 [lustre] [<ffffffffa0c87b5a>] lustre_kill_super+0x3a/0x50 [obdclass] [<ffffffff8121f4d8>] deactivate_locked_super+0x48/0x80 [<ffffffff8121f556>] deactivate_super+0x46/0x60 [<ffffffff8123b89f>] cleanup_mnt+0x3f/0x80 [<ffffffff8123b932>] __cleanup_mnt+0x12/0x20 [<ffffffff810a20b9>] task_work_run+0x89/0xb0 [<ffffffff8107f3de>] exit_to_usermode_loop+0x95/0xca [<ffffffff81003b6d>] syscall_return_slowpath+0x8d/0xa0 [<ffffffff8164b167>] int_ret_from_sys_call+0x25/0x9f [<ffffffffffffffff>] 0xffffffffffffffff
will upload client debug dump.
There is one interesting error message on the console.
LustreError: 94086:0:(statahead.c:1591:start_statahead_thread()) can't start ll_sa thread, rc: -4