System crashed with "Kernel panic - not syncing: GPFS Deadman Switch timer has expired, and there are still 1 outstanding I/O requests"

Solution In Progress - Updated -

Issue

  • System was crashed with the below log in vmcore
Kernel panic - not syncing: GPFS Deadman Switch timer has expired, and there are still 1 outstanding I/O requests

Pid: 0, comm: swapper Tainted: P           ---------------    2.6.32-504.12.2.el6.x86_64 #1
Call Trace:
 <IRQ>  [<ffffffff8152933c>] ? panic+0xa7/0x16f
 [<ffffffffa02bdfc5>] ? cxiDMSExpired+0x25/0x30 [mmfslinux]
 [<ffffffff81087db7>] ? run_timer_softirq+0x197/0x340
 [<ffffffff810b0275>] ? tick_dev_program_event+0x65/0xc0
 [<ffffffff8107d8b1>] ? __do_softirq+0xc1/0x1e0
 [<ffffffff810b034a>] ? tick_program_event+0x2a/0x30
 [<ffffffff8100c30c>] ? call_softirq+0x1c/0x30
 [<ffffffff8100fb55>] ? do_softirq+0x65/0xa0
 [<ffffffff8107d765>] ? irq_exit+0x85/0x90
 [<ffffffff81533c8a>] ? smp_apic_timer_interrupt+0x4a/0x60
 [<ffffffff8100bb93>] ? apic_timer_interrupt+0x13/0x20
 <EOI>  [<ffffffff81040f8b>] ? native_safe_halt+0xb/0x10
 [<ffffffff810167ad>] ? default_idle+0x4d/0xb0
 [<ffffffff81009fc6>] ? cpu_idle+0xb6/0x110
 [<ffffffff8151069a>] ? rest_init+0x7a/0x80
 [<ffffffff81c29f8f>] ? start_kernel+0x424/0x430
 [<ffffffff81c2933a>] ? x86_64_start_reservations+0x125/0x129
 [<ffffffff81c29453>] ? x86_64_start_kernel+0x115/0x124

Environment

  • Red Hat Enterprise Linux 6

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