RHEL6: i8042 OOPS: Kernel panic during boot when iSCSI is used

Solution Verified - Updated -

Issue

  • During a boot test from SAN (iSCSI boot) the kernel paniced with a Null pointer dereference:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
IP: [<ffffffff8150059f>] _spin_lock_irqsave+0x1f/0x40
PGD 0
Oops: 0002 [#1] SMP
last sysfs file:
CPU 0
Modules linked in:

Pid: 0, comm: swapper Not tainted 2.6.32-279.9.1.el6.x86_64 #1 FUJITSU PRIMERGY BX920 S2/D3030
RIP: 0010:[<ffffffff8150059f>]  [<ffffffff8150059f>] _spin_lock_irqsave+0x1f/0x40
RSP: 0018:ffff880028203e18  EFLAGS: 00010086
RAX: 0000000000010000 RBX: 0000000000000000 RCX: 000000000000000e
RDX: 0000000000000286 RSI: 0000000000000074 RDI: 0000000000000050
RBP: ffff880028203e18 R08: ffffffff81a00000 R09: ffffffff81a01ed8
R10: 0000000000000274 R11: 0000000000000282 R12: 0000000000000050
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000074
FS:  0000000000000000(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000050 CR3: 0000000001a85000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffffffff81a00000, task ffffffff81a8d020)
Stack:
 ffff880028203e58 ffffffff813d23b6 ffffffff81500707 0000000000000000
<d> 0000000000000000 0000000000000000 0000000000000000 0000000000000074
<d> ffff880028203ec8 ffffffff813d3192 0000000000000100 ffff880028203ec0
Call Trace:
 <IRQ>
 [<ffffffff813d23b6>] serio_interrupt+0x36/0xa0
 [<ffffffff81500707>] ? _spin_unlock_irqrestore+0x17/0x20
 [<ffffffff813d3192>] i8042_interrupt+0x132/0x3a0
 [<ffffffff810e1414>] ? __rcu_process_callbacks+0x54/0x330
 [<ffffffff810dbb00>] handle_IRQ_event+0x60/0x170
 [<ffffffff810993c0>] ? sched_clock_tick+0x60/0xa0
 [<ffffffff810de28e>] handle_edge_irq+0xde/0x180
 [<ffffffff8100df09>] handle_irq+0x49/0xa0
 [<ffffffff8150608c>] do_IRQ+0x6c/0xf0
 [<ffffffff8100ba53>] ret_from_intr+0x0/0x11
 <EOI>
 [<ffffffff81014877>] ? mwait_idle+0x77/0xd0
 [<ffffffff8150392a>] ? atomic_notifier_call_chain+0x1a/0x20
 [<ffffffff81009e06>] cpu_idle+0xb6/0x110
 [<ffffffff814e48da>] rest_init+0x7a/0x80
 [<ffffffff81c21f7b>] start_kernel+0x424/0x430
 [<ffffffff81c2133a>] x86_64_start_reservations+0x125/0x129
 [<ffffffff81c21438>] x86_64_start_kernel+0xfa/0x109
Code: c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 9c 58 0f 1f 44 00 00 48 89 c2 fa 66 0f 1f 44 00 00 b8 00 00 01 00 =
<f0> 0f c1 07 0f b7 c8 c1 e8 10 39 c1 74 0e f3 90 0f b7 0f eb f5
RIP  [<ffffffff8150059f>] _spin_lock_irqsave+0x1f/0x40
 RSP <ffff880028203e18>
CR2: 0000000000000050
---[ end trace b6fd34f2dee78ed1 ]---

Environment

  • Red Hat Enterprise Linux (RHEL) 6.3
  • kernel 2.6.32-279.9.1
  • device-mapper-multipath 0.4.9-56.el6
  • be2iscsi vers. 4.2.290.5
  • ocm 6.1.9.3-1

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