Call Trace with 'INFO: task gablogd:22812 blocked for more than 120 seconds'

Solution Verified - Updated -

Issue

  • Call traces are seen in vmcore and in sosreport.
INFO: task gablogd:21432 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
gablogd       D ffffffff80150939     0 21432      1         21736 21429 (NOTLB)
 ffff810c5dcc7e38 0000000000000086 0000000000000000 ffff810c48d56550
 ffff810c5dcc7de8 0000000000000001 ffff810c51310040 ffff810116dd4100
 0000003f5f5c3fb8 000000000001c9ca ffff810c51310228 00000003f77de004
Call Trace:
 [<ffffffff88b3b78a>] :gab:gab_linux_sv_wait+0x53/0x68
 [<ffffffff8008d0ad>] default_wake_function+0x0/0xe
 [<ffffffff88b25538>] :gab:gab_daemonlog+0xb1d/0xc8e
 [<ffffffff88b3b36c>] :gab:gab_linux_ioctl+0x10e/0x1a3
 [<ffffffff88b3b41d>] :gab:gab_linux_compat_ioctl+0x1c/0x20
 [<ffffffff800fb148>] compat_sys_ioctl+0xc5/0x2b2
 [<ffffffff8006149d>] sysenter_do_call+0x1e/0x76

Environment

  • Red Hat Enterprise Linux (RHEL) 5 or 6
  • Symantec Veritas Cluster Filesystem's gablogd watchdog process.

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