System hangs due to xlog_grant_head_wait in Red hat Enterprise Linux 8

Solution In Progress - Updated -

Issue

  • System hangs with the following backtrace.
PID: 2543   TASK: ffff88ec1d4a5c40  CPU: 11  COMMAND: "kworker/11:2"
 #0 [ffffacfc087f7be0] __schedule at ffffffff82cd1826
 #1 [ffffacfc087f7c78] schedule at ffffffff82cd1cb8
 #2 [ffffacfc087f7c88] xlog_grant_head_wait at ffffffffc088c3e1 [xfs]
 #3 [ffffacfc087f7cc0] xlog_grant_head_check at ffffffffc088ccae [xfs]
 #4 [ffffacfc087f7cf8] xfs_log_reserve at ffffffffc088f2f3 [xfs]
 #5 [ffffacfc087f7d30] xfs_trans_reserve at ffffffffc08891fe [xfs]
 #6 [ffffacfc087f7d68] xfs_trans_alloc at ffffffffc088a80a [xfs]
 #7 [ffffacfc087f7da8] xfs_iomap_write_unwritten at ffffffffc0877b1e [xfs]
 #8 [ffffacfc087f7e28] xfs_end_ioend at ffffffffc085f4e4 [xfs]
 #9 [ffffacfc087f7e60] xfs_end_io at ffffffffc0860049 [xfs]
#10 [ffffacfc087f7e98] process_one_work at ffffffff824d3477
#11 [ffffacfc087f7ed8] worker_thread at ffffffff824d3b40
#12 [ffffacfc087f7f10] kthread at ffffffff824d9502
#13 [ffffacfc087f7f50] ret_from_fork at ffffffff82e0023f

Environment

  • Red Hat Enterprise Linux 8

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