System hang in sync_inodes_sb() with high amounts of I/O

Solution Unverified - Updated -

Issue

  • System hang in sync_inodes_sb() with high amounts of I/O:
 #0 [ffff9c3dd0593c90] __schedule at ffffffff8c188da8
 #1 [ffff9c3dd0593cf8] schedule at ffffffff8c189179
 #2 [ffff9c3dd0593d08] schedule_timeout at ffffffff8c186e41
 #3 [ffff9c3dd0593db8] wait_for_completion at ffffffff8c18952d
 #4 [ffff9c3dd0593e18] sync_inodes_sb at ffffffff8bc7f3bc
 #5 [ffff9c3dd0593ee0] sync_inodes_one_sb at ffffffff8bc840b9
 #6 [ffff9c3dd0593ef0] iterate_supers at ffffffff8bc52933
 #7 [ffff9c3dd0593f30] sys_sync at ffffffff8bc84394
 #8 [ffff9c3dd0593f50] system_call_fastpath at ffffffff8c195f92

Environment

  • Red Hat Enterprise Linux 7

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