Issue

• VMWare system crashed with SCSI task abort errors in the log
• RHEL 6.4 system crashed with following messages:

kernel BUG at block/blk-timeout.c:173!
invalid opcode: 0000 [#1] SMP 
.........
Call Trace:
 <IRQ> 
 [<ffffffff8125aec3>] blk_start_request+0x33/0x50
 [<ffffffff813796cd>] scsi_request_fn+0x13d/0x7a0
 [<ffffffff8125b571>] __blk_run_queue+0x31/0x40
 [<ffffffff8125b6c0>] blk_run_queue+0x30/0x50
 [<ffffffff81378d77>] scsi_run_queue+0xc7/0x280
 [<ffffffff81372750>] ? __scsi_put_command+0x60/0xa0
 [<ffffffff81379f42>] scsi_next_command+0x42/0x60
 [<ffffffff8137ada8>] scsi_io_completion+0x398/0x6c0
 [<ffffffff81371af2>] scsi_finish_command+0xc2/0x130
 [<ffffffff8137b235>] scsi_softirq_done+0x145/0x170
 [<ffffffff81263785>] blk_done_softirq+0x85/0xa0
 [<ffffffff81076fd1>] __do_softirq+0xc1/0x1e0
 [<ffffffff8109b79b>] ? hrtimer_interrupt+0x14b/0x260
 [<ffffffff8100c1cc>] call_softirq+0x1c/0x30
 [<ffffffff8100de05>] do_softirq+0x65/0xa0
 [<ffffffff81076db5>] irq_exit+0x85/0x90
 [<ffffffff81517420>] smp_apic_timer_interrupt+0x70/0x9b
 [<ffffffff8100bb93>] apic_timer_interrupt+0x13/0x20
 <EOI> 
 [<ffffffff8103b92b>] ? native_safe_halt+0xb/0x10
 [<ffffffff81014a3d>] default_idle+0x4d/0xb0
 [<ffffffff81009fc6>] cpu_idle+0xb6/0x110
 [<ffffffff815071bc>] start_secondary+0x2ac/0x2ef
Code: 1f 84 00 00 00 00 00 8b 83 bc 03 00 00 41 89 84 24 38 01 00 00 eb 9a 48 8d bb c0 03 00 00 48 89 c6 e8 41 e4 e1 ff 5b 41 5c c9 c3 <0f> 0b eb fe 0f 0b 66 0f 1f 44 00 00 eb f8 66 66 66 66 66 2e 0f 
RIP  [<ffffffff81263ad4>] blk_add_timer+0xc4/0xe0
 RSP <ffff880045623c20>