I have some sick sas raid hardware which is timing out on a command, this
is causing an oops in the mptsas driver in 2.6.19.1 followed by a warning
about sleeping with irq's disabled.
Steve
[ 681.547980] mptscsih: ioc0: attempting task abort! (sc=ffff81023ffcf380)
[ 681.555009] sd 4:0:0:0:
[ 686.278756] mptscsih: ioc0: task abort: FAILED (sc=ffff81023ffcf380)
[ 686.285421] mptscsih: ioc0: attempting task abort! (sc=ffff81023f8fec80)
[ 686.292393] sd 4:0:0:0:
[ 691.017520] mptscsih: ioc0: task abort: FAILED (sc=ffff81023f8fec80)
[ 691.024160] mptscsih: ioc0: attempting task abort! (sc=ffff81023f8fe680)
[ 691.031124] sd 4:0:0:0:
[ 695.756285] mptscsih: ioc0: task abort: FAILED (sc=ffff81023f8fe680)
[ 695.762922] mptscsih: ioc0: attempting task abort! (sc=ffff81023ffcf080)
[ 695.769912] sd 4:0:0:0:
[ 700.491057] mptscsih: ioc0: task abort: FAILED (sc=ffff81023ffcf080)
[ 700.497686] mptscsih: ioc0: attempting task abort! (sc=ffff81023f8fe200)
[ 700.504623] sd 4:0:0:0:
[ 705.225828] mptscsih: ioc0: task abort: FAILED (sc=ffff81023f8fe200)
[ 705.232495] mptscsih: ioc0: attempting target reset!
(sc=ffff81023ffcf380)
[ 705.239690] sd 4:0:0:0:
[ 706.128069] mptscsih: ioc0: target reset: SUCCESS (sc=ffff81023ffcf380)
[ 707.297807] mptscsih: ioc0: attempting bus reset! (sc=ffff81023ffcf380)
[ 707.304749] sd 4:0:0:0:
[ 708.459573] mptscsih: ioc0: bus reset: SUCCESS (sc=ffff81023ffcf380)
[ 718.452062] Unable to handle kernel NULL pointer dereference at
0000000000000000 RIP:
[ 718.457812] [<ffffffff8801c2f3>] :mptsas:mptsas_qcmd+0xe/0x2e
[ 718.466488] PGD 237555067 PUD 237556067 PMD 235d33067 PTE 0
[ 718.472335] Oops: 0000 [1] SMP
[ 718.475622] CPU 0
[ 718.477740] Modules linked in: ipv6 autofs4 i2c_i801 i2c_core e1000
dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod aic79xx mptsas mptscsih
mptbase ata_piix
[ 718.492257] Pid: 442, comm: scsi_eh_4 Not tainted 2.6.19-1smp #1
[ 718.498551] RIP: 0010:[<ffffffff8801c2f3>] [<ffffffff8801c2f3>]
:mptsas:mptsas_qcmd+0xe/0x2e
[ 718.507496] RSP: 0018:ffff81023ee33d90 EFLAGS: 00010086
[ 718.513058] RAX: 0000000000000000 RBX: 0000000000000206 RCX:
0000000000000000
[ 718.520514] RDX: 0000000000000000 RSI: ffffffff811dfa03 RDI:
ffff81023ffcf380
[ 718.527970] RBP: ffff81023ffcf380 R08: 0000000000000000 R09:
000000000000000a
[ 718.535427] R10: ffff810237423c08 R11: ffff810237423c08 R12:
ffff81023ee33dc0
[ 718.542900] R13: ffff81023f9e1000 R14: ffff81023ffcf3dc R15:
ffff81023ffcf440
[ 718.550356] FS: 0000000000000000(0000) GS:ffffffff81440000(0000)
knlGS:0000000000000000
[ 718.558839] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 718.564844] CR2: 0000000000000000 CR3: 00000002379e7000 CR4:
00000000000006e0
[ 718.572307] Process scsi_eh_4 (pid: 442, threadinfo ffff81023ee32000,
task ffff81023fad4080)
[ 718.581148] Stack: ffff81023ee33dc0 ffffffff811df7b7
000009c400000000 0000000200080000
[ 718.589556] 000800000ae30009 ffff8102345f6a00 0000000000000000
dead4ead00000001
[ 718.597322] 00000000ffffffff ffffffffffffffff ffff81023ee33de0
ffff81023ee33de0
[ 718.604866] Call Trace:
[ 718.607622] [<ffffffff811df7b7>] scsi_send_eh_cmnd+0x1d3/0x36f
[ 718.613796] [<ffffffff8103d069>] keventd_create_kthread+0x0/0x66
[ 718.620186] [<ffffffff811df9b4>] scsi_eh_tur+0x28/0x77
[ 718.625635] [<ffffffff811e0513>] scsi_error_handler+0x744/0xab6
[ 718.631907] [<ffffffff811dfdcf>] scsi_error_handler+0x0/0xab6
[ 718.638004] [<ffffffff8103d069>] keventd_create_kthread+0x0/0x66
[ 718.644388] [<ffffffff8103d2ee>] kthread+0xd1/0x103
[ 718.649560] [<ffffffff8100a4f8>] child_rip+0xa/0x12
[ 718.654750] [<ffffffff8103d069>] keventd_create_kthread+0x0/0x66
[ 718.661108] [<ffffffff8103d21d>] kthread+0x0/0x103
[ 718.666202] [<ffffffff8100a4ee>] child_rip+0x0/0x12
[ 718.671383]
[ 718.672948]
[ 718.672948] Code: 48 8b 00 80 78 12 00 75 07 41 58 e9 37 89 ff ff c7
87 70 01
[ 718.682143] RIP [<ffffffff8801c2f3>] :mptsas:mptsas_qcmd+0xe/0x2e
[ 718.688648] RSP <ffff81023ee33d90>
[ 718.692298] CR2: 0000000000000000
[ 718.695758] <3>BUG: sleeping function called from invalid context at
kernel/rwsem.c:20
[ 718.704037] in_atomic():0, irqs_disabled():1
[ 718.708436]
[ 718.708437] Call Trace:
[ 718.712504] [<ffffffff8103fc3c>] down_read+0x15/0x21
[ 718.717703] [<ffffffff8103779e>] blocking_notifier_call_chain+0x13/0x36
[ 718.724692] [<ffffffff8102e6b3>] do_exit+0x22/0x89c
[ 718.729805] [<ffffffff811a6bee>] do_unblank_screen+0x27/0x134
[ 718.735809] [<ffffffff8101b7a0>] do_page_fault+0x725/0x7a1
[ 718.741621] [<ffffffff8103d40e>] autoremove_wake_function+0x9/0x2e
[ 718.748123] [<ffffffff81024234>] __wake_up_common+0x3e/0x68
[ 718.754016] [<ffffffff8102c399>] vprintk+0x2af/0x2ef
[ 718.759240] [<ffffffff812f060d>] error_exit+0x0/0x84
[ 718.764482] [<ffffffff811dfa03>] scsi_eh_done+0x0/0x4a
[ 718.769947] [<ffffffff8801c2f3>] :mptsas:mptsas_qcmd+0xe/0x2e
[ 718.776011] [<ffffffff811df7b7>] scsi_send_eh_cmnd+0x1d3/0x36f
[ 718.782172] [<ffffffff8103d069>] keventd_create_kthread+0x0/0x66
[ 718.788475] [<ffffffff811df9b4>] scsi_eh_tur+0x28/0x77
[ 718.793934] [<ffffffff811e0513>] scsi_error_handler+0x744/0xab6
[ 718.800169] [<ffffffff811dfdcf>] scsi_error_handler+0x0/0xab6
[ 718.806223] [<ffffffff8103d069>] keventd_create_kthread+0x0/0x66
[ 718.812511] [<ffffffff8103d2ee>] kthread+0xd1/0x103
[ 718.817675] [<ffffffff8100a4f8>] child_rip+0xa/0x12
[ 718.822796] [<ffffffff8103d069>] keventd_create_kthread+0x0/0x66
[ 718.829148] [<ffffffff8103d21d>] kthread+0x0/0x103
[ 718.834189] [<ffffffff8100a4ee>] child_rip+0x0/0x12
[ 718.839299]
[ 719.320266] mptsas: ioc0: attaching ssp device, channel 0, id 9, phy 7
[ 719.353183] mptsas: ioc0: removing ssp device, channel 0, id 8, phy 1
[ 719.363390] mptsas: ioc0: removing ssp device, channel 0, id 9, phy 4
[ 721.436156] mptsas: ioc0: attaching ssp device, channel 0, id 8, phy 1
[ 723.470835] mptsas: ioc0: attaching ssp device, channel 0, id 9, phy 4
[ 723.502397] mptsas: ioc0: removing ssp device, channel 0, id 8, phy 1
[ 723.510525] mptsas: ioc0: removing ssp device, channel 0, id 9, phy 4
[ 725.580107] mptsas: ioc0: attaching ssp device, channel 0, id 8, phy 1
[ 727.614773] mptsas: ioc0: attaching ssp device, channel 0, id 9, phy 4
[ 727.663069] mptsas: ioc0: removing ssp device, channel 0, id 8, phy 0
[ 727.670218] mptsas: ioc0: removing ssp device, channel 0, id 9, phy 4
[ 729.742634] mptsas: ioc0: attaching ssp device, channel 0, id 8, phy 1
[ 731.774665] mptsas: ioc0: attaching ssp device, channel 0, id 9, phy 4
[ 731.823073] mptsas: ioc0: removing ssp device, channel 0, id 8, phy 0
[ 731.831569] mptsas: ioc0: removing ssp device, channel 0, id 9, phy 4
[ 733.906518] mptsas: ioc0: attaching ssp device, channel 0, id 8, phy 0
[ 735.938553] mptsas: ioc0: attaching ssp device, channel 0, id 9, phy 4
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