System crash in scsi_softirq_done() following aacraid abort requests

Issue

• System crash in scsi_softirq_done() following aacraid abort requests:

[1374036.373637] aacraid: Host adapter abort request.
                 aacraid: Outstanding commands on (0,1,4,0):
[1374036.373697] aacraid: Host adapter abort request.
                 aacraid: Outstanding commands on (0,1,4,0):
[1374036.373757] aacraid: Host adapter abort request.
                 aacraid: Outstanding commands on (0,1,4,0):
[1374036.516052] Unable to handle kernel paging request for data at address 0x00000000
[1374036.516234] Faulting instruction address: 0xc0000000007595f4
[1374036.516275] Oops: Kernel access of bad area, sig: 11 [#1]
[1374036.516303] SMP NR_CPUS=2048 NUMA PowerNV
....
[1374036.517195] CPU: 22 PID: 0 Comm: swapper/22 Kdump: loaded Not tainted 3.10.0-1160.59.1.el7.ppc64le #1
[1374036.517246] task: c000001e2e8ac000 ti: c000001fff6e8000 task.ti: c000001e2ea04000
[1374036.517289] NIP: c0000000007595f4 LR: c000000000557bc0 CTR: c0000000007595c0
[1374036.517331] REGS: c000001fff6ebb60 TRAP: 0300   Not tainted  (3.10.0-1160.59.1.el7.ppc64le)
[1374036.517380] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE>  CR: 28004082  XER: 00000000
....
[1374036.518134] NIP [c0000000007595f4] scsi_softirq_done+0x34/0x200
[1374036.518175] LR [c000000000557bc0] blk_done_softirq+0xb0/0xe0
[1374036.518214] Call Trace:
[1374036.518234] [c000001fff6ebde0] [c00000000142a800] rcu_sched_state+0x300/0xc780 (unreliable)
[1374036.518303] [c000001fff6ebe60] [c000000000557bc0] blk_done_softirq+0xb0/0xe0
[1374036.518363] [c000001fff6ebea0] [c0000000001012f4] __do_softirq+0x154/0x380
[1374036.518415] [c000001fff6ebf90] [c00000000002d6fc] call_do_softirq+0x14/0x24
[1374036.518463] [c000001fff6e7ea0] [c000000000018710] do_softirq+0x130/0x180
[1374036.518512] [c000001fff6e7ee0] [c000000000101884] irq_exit+0x1f4/0x200
[1374036.518561] [c000001fff6e7f20] [c0000000000182cc] __do_irq+0x9c/0x1a0
[1374036.518607] [c000001fff6e7f90] [c00000000002d720] call_do_irq+0x14/0x24
[1374036.518654] [c000001e2ea07a50] [c00000000001846c] do_IRQ+0x9c/0x110
[1374036.518702] [c000001e2ea07aa0] [c000000000002a94] hardware_interrupt_common+0x114/0x180
[1374036.518758] --- Exception: 501 at arch_local_irq_restore+0x74/0x150
                     LR = cpuidle_idle_call+0x140/0x410
[1374036.518830] [c000001e2ea07d90] [c00000000599fb88] 0xc00000000599fb88 (unreliable)
[1374036.518886] [c000001e2ea07db0] [c0000000008ae050] cpuidle_idle_call+0x140/0x410
[1374036.518941] [c000001e2ea07e20] [c00000000008ce70] powernv_idle+0x20/0x50
[1374036.518988] [c000001e2ea07e40] [c00000000001f8c0] arch_cpu_idle+0x70/0x160
[1374036.519036] [c000001e2ea07e70] [c00000000018d800] cpu_startup_entry+0x190/0x210
[1374036.519091] [c000001e2ea07ed0] [c000000000057dc4] start_secondary+0x704/0x7d0
[1374036.519146] [c000001e2ea07f90] [c000000000009b6c] start_secondary_prolog+0x10/0x14
[1374036.519199] Instruction dump:
[1374036.519230] 38423040 7c0802a6 60000000 7c0802a6 fb81ffe0 fba1ffe8 fbc1fff0 fbe1fff8 
[1374036.522407] f8010010 f821ff81 ebe30100 83a30160 <e93f0000> 395f0018 839f00c4 f95f0018 
[1374036.557605] ---[ end trace 2e8f482de800cda1 ]---