Re: kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3)

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* Re: kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3)
       [not found] <e64671580803171629g534ebf34l89adbb14bb985dc7@mail.gmail.com>
@ 2008-03-18  7:25 ` Andrew Morton
  2008-03-18 17:40   ` Michael Reed
  0 siblings, 1 reply; 5+ messages in thread
From: Andrew Morton @ 2008-03-18  7:25 UTC (permalink / raw)
  To: Sabuj Pattanayek; +Cc: linux-kernel, linux-scsi, Moore, Eric Dean

On Mon, 17 Mar 2008 18:29:28 -0500 "Sabuj Pattanayek" <sabujp@gmail.com> wrote:

> Hi,

Let's add some cc's.

> I'm running (uname -a):
> 
> Linux porpoise 2.6.24.3 #11 Mon Mar 17 17:24:30 CDT 2008 ppc64
> PPC970FX, altivec supported RackMac3,1 GNU/Linux
> 
> on an Apple Xserve G5. With the following fibre channel card (lspci
> -vvv, it has two fibre connections):
> 
> 0001:06:03.0 Fibre Channel: LSI Logic / Symbios Logic FC929X Fibre
> Channel Adapter (rev 81)
>         Subsystem: LSI Logic / Symbios Logic Unknown device 10d0
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
> >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx-
>         Latency: 16 (16000ns min, 2500ns max), Cache Line Size: 64 bytes
>         Interrupt: pin A routed to IRQ 53
>         Region 0: I/O ports at 0400 [size=256]
>         Region 1: Memory at 90030000 (64-bit, non-prefetchable) [size=64K]
>         Region 3: Memory at 90020000 (64-bit, non-prefetchable) [size=64K]
>         Expansion ROM at 90200000 [disabled] [size=1M]
>         Capabilities: [50] Power Management version 2
>                 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+
> Queue=0/0 Enable-
>                 Address: 0000000000000000  Data: 0000
>         Capabilities: [68] PCI-X non-bridge device
>                 Command: DPERE- ERO- RBC=2048 OST=8
>                 Status: Dev=ff:1f.0 64bit+ 133MHz+ SCD- USC- DC=simple
> DMMRBC=2048 DMOST=8 DMCRS=64 RSCEM- 266MHz- 533MHz-
> 
> 0001:06:03.1 Fibre Channel: LSI Logic / Symbios Logic FC929X Fibre
> Channel Adapter (rev 81)
>         Subsystem: LSI Logic / Symbios Logic Unknown device 10d0
>         Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
>         Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
> >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 16 (16000ns min, 2500ns max), Cache Line Size: 64 bytes
>         Interrupt: pin B routed to IRQ 53
>         Region 0: I/O ports at <unassigned> [disabled]
>         Region 1: Memory at 90010000 (64-bit, non-prefetchable)
> [disabled] [size=64K]
>         Region 3: Memory at 90000000 (64-bit, non-prefetchable)
> [disabled] [size=64K]
>         Expansion ROM at 90100000 [disabled] [size=1M]
>         Capabilities: [50] Power Management version 2
>                 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+
> Queue=0/0 Enable-
>                 Address: 0000000000000000  Data: 0000
>         Capabilities: [68] PCI-X non-bridge device
>                 Command: DPERE- ERO- RBC=2048 OST=8
>                 Status: Dev=ff:1f.1 64bit+ 133MHz+ SCD- USC- DC=simple
> DMMRBC=2048 DMOST=8 DMCRS=64 RSCEM- 266MHz- 533MHz-
> 
> After doing "modprobe mptfc" I get the following kernel exception
> (dmesg output):
> 
> Fusion MPT base driver 3.04.06
> Copyright (c) 1999-2007 LSI Corporation
> Fusion MPT FC Host driver 3.04.06
> PCI: Enabling device: (0001:06:03.0), cmd 7
> mptbase: ioc0: Initiating bringup
> ioc0: LSIFC929XL A1: Capabilities={Initiator,Target,LAN}
> scsi4 : ioc0: LSIFC929XL A1, FwRev=01020e00h, Ports=1, MaxQ=1023, IRQ=53
> mptfc: ioc0: FC Link Established, Speed = 2 Gbps
> Oops: Exception in kernel mode, sig: 4 [#1]
> PowerMac
> Modules linked in: mptfc mptscsih mptbase
> NIP: d000000000144984 LR: d00000000014923c CTR: 0000000000000000
> REGS: c0000001387ef8f0 TRAP: 0700   Not tainted  (2.6.24.3)
> MSR: 9000000000089032 <EE,ME,IR,DR>  CR: 24002028  XER: 00000000
> TASK = c0000001388db040[12431] 'mptfc_wq_4' THREAD: c0000001387ec000
> GPR00: 00000000000000d3 c0000001387efb70 d000000000163b70 c000000138a8af1c
> GPR04: 00000000d3000000 00000000ffffffff 0000000000000000 c000000138a8af00
> GPR08: fffffffffffffffd 00000000000000ff 0000000000000000 00000000ffffffff
> GPR12: d000000000150040 c0000000006f8280 000000000023fb28 c0000000005e25e0
> GPR16: c0000001387efcb0 c0000001380dd758 c0000001387efcc0 c000000138978000
> GPR20: 0000000000000000 c0000001387da000 000000000000067d c0000001380dd454
> GPR24: c0000001387dd3e8 0000000000010000 d000000000159b87 c0000001380dd000
> GPR28: c0000001387efcc0 c0000001387efcd0 d000000000162500 c000000138a8af00
> NIP [d000000000144984] .mpt_add_sge+0x14/0x50 [mptbase]
> LR [d00000000014923c] .mpt_config+0x16c/0x3b0 [mptbase]
> Call Trace:
> [c0000001387efb70] [d000000000149120] .mpt_config+0x50/0x3b0 [mptbase]
> (unreliable)
> [c0000001387efc40] [d00000000015ec8c] .mptfc_rescan_devices+0x17c/0x780 [mptfc]
> [c0000001387efda0] [c0000000000548ac] .run_workqueue+0xec/0x1d0
> [c0000001387efe40] [c0000000000556cc] .worker_thread+0xdc/0x190
> [c0000001387eff00] [c00000000005a2e8] .kthread+0xc8/0xe0
> [c0000001387eff90] [c0000000000217cc] .kernel_thread+0x4c/0x68
> Instruction dump:
> 200000d0 230fff00 210000d0 00010000 02010010 08002500 09200100 03090006
> 230fff00 200000d0 230fff00 210000d0 <00010000> 02010010 08002500 09200100
> ---[ end trace 45fe87d4d747696e ]---

OK, mtp-fusion seems to have gone splat.

> Unable to handle kernel paging request for data at address 0x230fff00210000d0
> Faulting instruction address: 0xc000000000077658
> Oops: Kernel access of bad area, sig: 11 [#2]
> PowerMac
> Modules linked in: mptfc mptscsih mptbase
> NIP: c000000000077658 LR: c000000000077624 CTR: 000000000000000c
> REGS: c00000013a3b7530 TRAP: 0300   Tainted: G      D  (2.6.24.3)
> MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 24002028  XER: 00000000
> DAR: 230fff00210000d0, DSISR: 0000000040000000
> TASK = c00000013a38a810[156] 'pdflush' THREAD: c00000013a3b4000
> GPR00: 0000000000000010 c00000013a3b77b0 c0000000007e8218 000000000000000e
> GPR04: 000000000000000e 00000000000008e8 c00000013897e6b8 0000000000024000
> GPR08: 0000000000000002 0000000000000002 230fff00210000d0 0000000000000003
> GPR12: 0000000000000010 c0000000006f8280 000000000023fb28 c0000000005e25e0
> GPR16: c0000000006c6460 c00000013924fb28 0000000000000000 c00000013a3b7948
> GPR20: c00000000078e2a0 0000000000000000 c0000001381dd440 c00000013924fb28
> GPR24: ffffffffffffffff 000000000000000e 0000000000000000 c00000013a3b7da8
> GPR28: c00000013a3b7940 000000000000000e c000000000765818 c00000013a3b7958
> NIP [c000000000077658] .find_get_pages_tag+0x78/0x100
> LR [c000000000077624] .find_get_pages_tag+0x44/0x100
> Call Trace:
> [c00000013a3b77b0] [c000000000110330]
> .ext3_ordered_writepage+0x180/0x1e0 (unreliable)
> [c00000013a3b7840] [c0000000000825fc] .pagevec_lookup_tag+0x2c/0x50
> [c00000013a3b78d0] [c000000000080150] .write_cache_pages+0x1d0/0x450
> [c00000013a3b7a50] [c0000000000804b4] .do_writepages+0xa4/0xb0
> [c00000013a3b7ad0] [c0000000000cbf60] .__writeback_single_inode+0xb0/0x3c0
> [c00000013a3b7bd0] [c0000000000cc724] .sync_sb_inodes+0x224/0x390
> [c00000013a3b7c90] [c0000000000ccbb4] .writeback_inodes+0xe4/0x110
> [c00000013a3b7d30] [c0000000000810f0] .wb_kupdate+0xf0/0x190
> [c00000013a3b7e30] [c000000000081a28] .pdflush+0x178/0x280
> [c00000013a3b7f00] [c00000000005a2e8] .kthread+0xc8/0xe0
> [c00000013a3b7f90] [c0000000000217cc] .kernel_thread+0x4c/0x68
> Instruction dump:
> 7c7d1b79 41820074 393dffff 3ce00002 39000000 79290020 60e74000 39290001
> 7d2903a6 60000000 79001f24 7d5f002a <e92a0000> 7d293838 7fa93800 41de0068
> ---[ end trace 45fe87d4d747696e ]---

And that's a totally, wildly different part of the kernel.  ANd it's a
code-patch which millions of machines run all the time.

It's hard to see how oops #2 could be a consequence of oops #1.  Weird.

> Any ideas what's going on here? Attempting to run any further commands
> (e.g. reboot) causes a segfault or hang of the command (e.g. ls). I
> can send the enabled/modularized options of the .config in another
> email if required. Please CC replies to sabujp@gmail.com since I'm not
> on the list.
> 

Did any earlier kernel work OK?  If so, which?  2.6.23??

Thanks.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3)
  2008-03-18  7:25 ` kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3) Andrew Morton
@ 2008-03-18 17:40   ` Michael Reed
  2008-03-19 21:11     ` Sabuj Pattanayek
  0 siblings, 1 reply; 5+ messages in thread
From: Michael Reed @ 2008-03-18 17:40 UTC (permalink / raw)
  To: Andrew Morton; +Cc: Sabuj Pattanayek, linux-kernel, linux-scsi, Moore, Eric

Andrew Morton wrote:
> On Mon, 17 Mar 2008 18:29:28 -0500 "Sabuj Pattanayek" <sabujp@gmail.com> wrote:
> 
>> Hi,
> 
> Let's add some cc's.

Fixing up Eric's email address.  It's no longer "lsil.com".

(Question below.)

> 
>> I'm running (uname -a):
>>
>> Linux porpoise 2.6.24.3 #11 Mon Mar 17 17:24:30 CDT 2008 ppc64
>> PPC970FX, altivec supported RackMac3,1 GNU/Linux
>>
>> on an Apple Xserve G5. With the following fibre channel card (lspci
>> -vvv, it has two fibre connections):
>>
>> 0001:06:03.0 Fibre Channel: LSI Logic / Symbios Logic FC929X Fibre
>> Channel Adapter (rev 81)
>>         Subsystem: LSI Logic / Symbios Logic Unknown device 10d0
>>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
>> ParErr- Stepping- SERR- FastB2B- DisINTx-
>>         Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>>> TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx-
>>         Latency: 16 (16000ns min, 2500ns max), Cache Line Size: 64 bytes
>>         Interrupt: pin A routed to IRQ 53
>>         Region 0: I/O ports at 0400 [size=256]
>>         Region 1: Memory at 90030000 (64-bit, non-prefetchable) [size=64K]
>>         Region 3: Memory at 90020000 (64-bit, non-prefetchable) [size=64K]
>>         Expansion ROM at 90200000 [disabled] [size=1M]
>>         Capabilities: [50] Power Management version 2
>>                 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
>> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>>         Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+
>> Queue=0/0 Enable-
>>                 Address: 0000000000000000  Data: 0000
>>         Capabilities: [68] PCI-X non-bridge device
>>                 Command: DPERE- ERO- RBC=2048 OST=8
>>                 Status: Dev=ff:1f.0 64bit+ 133MHz+ SCD- USC- DC=simple
>> DMMRBC=2048 DMOST=8 DMCRS=64 RSCEM- 266MHz- 533MHz-
>>
>> 0001:06:03.1 Fibre Channel: LSI Logic / Symbios Logic FC929X Fibre
>> Channel Adapter (rev 81)
>>         Subsystem: LSI Logic / Symbios Logic Unknown device 10d0
>>         Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
>> ParErr- Stepping- SERR- FastB2B- DisINTx-
>>         Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>>> TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>         Latency: 16 (16000ns min, 2500ns max), Cache Line Size: 64 bytes
>>         Interrupt: pin B routed to IRQ 53
>>         Region 0: I/O ports at <unassigned> [disabled]
>>         Region 1: Memory at 90010000 (64-bit, non-prefetchable)
>> [disabled] [size=64K]
>>         Region 3: Memory at 90000000 (64-bit, non-prefetchable)
>> [disabled] [size=64K]
>>         Expansion ROM at 90100000 [disabled] [size=1M]
>>         Capabilities: [50] Power Management version 2
>>                 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
>> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>>                 Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>>         Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+
>> Queue=0/0 Enable-
>>                 Address: 0000000000000000  Data: 0000
>>         Capabilities: [68] PCI-X non-bridge device
>>                 Command: DPERE- ERO- RBC=2048 OST=8
>>                 Status: Dev=ff:1f.1 64bit+ 133MHz+ SCD- USC- DC=simple
>> DMMRBC=2048 DMOST=8 DMCRS=64 RSCEM- 266MHz- 533MHz-
>>
>> After doing "modprobe mptfc" I get the following kernel exception
>> (dmesg output):
>>
>> Fusion MPT base driver 3.04.06
>> Copyright (c) 1999-2007 LSI Corporation
>> Fusion MPT FC Host driver 3.04.06
>> PCI: Enabling device: (0001:06:03.0), cmd 7
>> mptbase: ioc0: Initiating bringup
>> ioc0: LSIFC929XL A1: Capabilities={Initiator,Target,LAN}
>> scsi4 : ioc0: LSIFC929XL A1, FwRev=01020e00h, Ports=1, MaxQ=1023, IRQ=53
>> mptfc: ioc0: FC Link Established, Speed = 2 Gbps
>> Oops: Exception in kernel mode, sig: 4 [#1]
>> PowerMac
>> Modules linked in: mptfc mptscsih mptbase
>> NIP: d000000000144984 LR: d00000000014923c CTR: 0000000000000000
>> REGS: c0000001387ef8f0 TRAP: 0700   Not tainted  (2.6.24.3)
>> MSR: 9000000000089032 <EE,ME,IR,DR>  CR: 24002028  XER: 00000000
>> TASK = c0000001388db040[12431] 'mptfc_wq_4' THREAD: c0000001387ec000
>> GPR00: 00000000000000d3 c0000001387efb70 d000000000163b70 c000000138a8af1c
>> GPR04: 00000000d3000000 00000000ffffffff 0000000000000000 c000000138a8af00
>> GPR08: fffffffffffffffd 00000000000000ff 0000000000000000 00000000ffffffff
>> GPR12: d000000000150040 c0000000006f8280 000000000023fb28 c0000000005e25e0
>> GPR16: c0000001387efcb0 c0000001380dd758 c0000001387efcc0 c000000138978000
>> GPR20: 0000000000000000 c0000001387da000 000000000000067d c0000001380dd454
>> GPR24: c0000001387dd3e8 0000000000010000 d000000000159b87 c0000001380dd000
>> GPR28: c0000001387efcc0 c0000001387efcd0 d000000000162500 c000000138a8af00
>> NIP [d000000000144984] .mpt_add_sge+0x14/0x50 [mptbase]
>> LR [d00000000014923c] .mpt_config+0x16c/0x3b0 [mptbase]
>> Call Trace:
>> [c0000001387efb70] [d000000000149120] .mpt_config+0x50/0x3b0 [mptbase]
>> (unreliable)
>> [c0000001387efc40] [d00000000015ec8c] .mptfc_rescan_devices+0x17c/0x780 [mptfc]
>> [c0000001387efda0] [c0000000000548ac] .run_workqueue+0xec/0x1d0
>> [c0000001387efe40] [c0000000000556cc] .worker_thread+0xdc/0x190
>> [c0000001387eff00] [c00000000005a2e8] .kthread+0xc8/0xe0
>> [c0000001387eff90] [c0000000000217cc] .kernel_thread+0x4c/0x68
>> Instruction dump:
>> 200000d0 230fff00 210000d0 00010000 02010010 08002500 09200100 03090006
>> 230fff00 200000d0 230fff00 210000d0 <00010000> 02010010 08002500 09200100
>> ---[ end trace 45fe87d4d747696e ]---
> 
> OK, mtp-fusion seems to have gone splat.
> 
>> Unable to handle kernel paging request for data at address 0x230fff00210000d0
>> Faulting instruction address: 0xc000000000077658
>> Oops: Kernel access of bad area, sig: 11 [#2]
>> PowerMac
>> Modules linked in: mptfc mptscsih mptbase
>> NIP: c000000000077658 LR: c000000000077624 CTR: 000000000000000c
>> REGS: c00000013a3b7530 TRAP: 0300   Tainted: G      D  (2.6.24.3)
>> MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 24002028  XER: 00000000
>> DAR: 230fff00210000d0, DSISR: 0000000040000000
>> TASK = c00000013a38a810[156] 'pdflush' THREAD: c00000013a3b4000
>> GPR00: 0000000000000010 c00000013a3b77b0 c0000000007e8218 000000000000000e
>> GPR04: 000000000000000e 00000000000008e8 c00000013897e6b8 0000000000024000
>> GPR08: 0000000000000002 0000000000000002 230fff00210000d0 0000000000000003
>> GPR12: 0000000000000010 c0000000006f8280 000000000023fb28 c0000000005e25e0
>> GPR16: c0000000006c6460 c00000013924fb28 0000000000000000 c00000013a3b7948
>> GPR20: c00000000078e2a0 0000000000000000 c0000001381dd440 c00000013924fb28
>> GPR24: ffffffffffffffff 000000000000000e 0000000000000000 c00000013a3b7da8
>> GPR28: c00000013a3b7940 000000000000000e c000000000765818 c00000013a3b7958
>> NIP [c000000000077658] .find_get_pages_tag+0x78/0x100
>> LR [c000000000077624] .find_get_pages_tag+0x44/0x100
>> Call Trace:
>> [c00000013a3b77b0] [c000000000110330]
>> .ext3_ordered_writepage+0x180/0x1e0 (unreliable)
>> [c00000013a3b7840] [c0000000000825fc] .pagevec_lookup_tag+0x2c/0x50
>> [c00000013a3b78d0] [c000000000080150] .write_cache_pages+0x1d0/0x450
>> [c00000013a3b7a50] [c0000000000804b4] .do_writepages+0xa4/0xb0
>> [c00000013a3b7ad0] [c0000000000cbf60] .__writeback_single_inode+0xb0/0x3c0
>> [c00000013a3b7bd0] [c0000000000cc724] .sync_sb_inodes+0x224/0x390
>> [c00000013a3b7c90] [c0000000000ccbb4] .writeback_inodes+0xe4/0x110
>> [c00000013a3b7d30] [c0000000000810f0] .wb_kupdate+0xf0/0x190
>> [c00000013a3b7e30] [c000000000081a28] .pdflush+0x178/0x280
>> [c00000013a3b7f00] [c00000000005a2e8] .kthread+0xc8/0xe0
>> [c00000013a3b7f90] [c0000000000217cc] .kernel_thread+0x4c/0x68
>> Instruction dump:
>> 7c7d1b79 41820074 393dffff 3ce00002 39000000 79290020 60e74000 39290001
>> 7d2903a6 60000000 79001f24 7d5f002a <e92a0000> 7d293838 7fa93800 41de0068
>> ---[ end trace 45fe87d4d747696e ]---
> 
> And that's a totally, wildly different part of the kernel.  ANd it's a
> code-path which millions of machines run all the time.
> 
> It's hard to see how oops #2 could be a consequence of oops #1.  Weird.
> 
>> Any ideas what's going on here? Attempting to run any further commands
>> (e.g. reboot) causes a segfault or hang of the command (e.g. ls). I
>> can send the enabled/modularized options of the .config in another
>> email if required. Please CC replies to sabujp@gmail.com since I'm not
>> on the list.
>>
> 
> Did any earlier kernel work OK?  If so, which?  2.6.23??

Does the exception happen every time?

 Mike

> 
> Thanks.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3)
  2008-03-18 17:40   ` Michael Reed
@ 2008-03-19 21:11     ` Sabuj Pattanayek
  2008-03-19 23:36       ` Sabuj Pattanayek
  0 siblings, 1 reply; 5+ messages in thread
From: Sabuj Pattanayek @ 2008-03-19 21:11 UTC (permalink / raw)
  To: Michael Reed; +Cc: Andrew Morton, linux-kernel, linux-scsi, Moore, Eric

Hi,

>  > Did any earlier kernel work OK?  If so, which?  2.6.23??

2.6.24.3 was the first kernel I tested.

>  Does the exception happen every time?

Yes and now I've tested older kernels:

Linux porpoise 2.6.20 #4 Wed Mar 19 15:32:32 CDT 2008 ppc64 PPC970FX,
altivec supported RackMac3,1 GNU/Linux

...and put another very similar LSI FC card into the box that is known
to be working (the card in the previous email was also known to be
working, but just to be sure...):


0001:06:03.0 Fibre Channel: LSI Logic / Symbios Logic FC929X Fibre
Channel Adapter (rev 81)
        Subsystem: LSI Logic / Symbios Logic Unknown device 10d0
        Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 16 (16000ns min, 2500ns max), Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 53
        Region 0: I/O ports at 0400 [disabled] [size=256]
        Region 1: Memory at 90030000 (64-bit, non-prefetchable)
[disabled] [size=64K]
        Region 3: Memory at 90020000 (64-bit, non-prefetchable)
[disabled] [size=64K]
        Expansion ROM at 90200000 [disabled] [size=1M]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [68] PCI-X non-bridge device
                Command: DPERE- ERO- RBC=2048 OST=8
                Status: Dev=ff:1f.0 64bit+ 133MHz+ SCD- USC- DC=simple
DMMRBC=2048 DMOST=8 DMCRS=64 RSCEM- 266MHz- 533MHz-


0001:06:03.1 Fibre Channel: LSI Logic / Symbios Logic FC929X Fibre
Channel Adapter (rev 81)
        Subsystem: LSI Logic / Symbios Logic Unknown device 10d0
        Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 16 (16000ns min, 2500ns max), Cache Line Size: 64 bytes
        Interrupt: pin B routed to IRQ 53
        Region 0: I/O ports at <unassigned> [disabled]
        Region 1: Memory at 90010000 (64-bit, non-prefetchable)
[disabled] [size=64K]
        Region 3: Memory at 90000000 (64-bit, non-prefetchable)
[disabled] [size=64K]
        Expansion ROM at 90100000 [disabled] [size=1M]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [68] PCI-X non-bridge device
                Command: DPERE- ERO- RBC=2048 OST=8
                Status: Dev=ff:1f.1 64bit+ 133MHz+ SCD- USC- DC=simple
DMMRBC=2048 DMOST=8 DMCRS=64 RSCEM- 266MHz- 533MHz-


on "modprobe mptfc" I get:

porpoise linux-2.6.20 # modprobe mptfc

Oops: Kernel access of bad area, sig: 11 [#1]

Modules linked in: mptfc mptscsih mptbase
NIP: C0000000000C1494 LR: C0000000000C1768 CTR: C000000000516B90
REGS: c000000001d0b930 TRAP: 0300   Not tainted  (2.6.20)
MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 24000024  XER: 20000000
DAR: 0201001008002568, DSISR: 0000000040000000
TASK = c000000001d137e0[141] 'pdflush' THREAD: c000000001d08000
GPR00: 0000000000000400 C000000001D0BBB0 C000000000768910 0000000000000001
GPR04: C000000001D13AA0 0000000000000000 C00000013AB574F8 C00000000000FBD8
GPR08: C000000001D0B760 0201001008002500 0000000000000116 0000000000000000
GPR12: D00000000016B050 C000000000671C80 000000000023FB28 C00000000058C6D8
GPR16: C000000000664DB0 000000000023FB20 C00000000058B380 C00000000058C5E8
GPR20: C000000000664B40 C00000000058B130 C00000000058C018 C000000000674D70
GPR24: 000000010000EBBB 0000000000000000 C00000000FE90CD8 C000000001D0BD88
GPR28: C00000000FE90C00 C00000000FEE9350 C0000000006A3370 C00000013AB574E8
NIP [C0000000000C1494] .sync_sb_inodes+0x74/0x3d0
LR [C0000000000C1768] .sync_sb_inodes+0x348/0x3d0
Call Trace:
[C000000001D0BBB0] [C0000000000C1768] .sync_sb_inodes+0x348/0x3d0 (unreliable)
[C000000001D0BC70] [C0000000000C1D04] .writeback_inodes+0xf4/0x120
[C000000001D0BD10] [C0000000000782E0] .wb_kupdate+0xe0/0x180
[C000000001D0BE10] [C000000000078B58] .pdflush+0x168/0x270
[C000000001D0BEE0] [C00000000005A538] .kthread+0x158/0x170
[C000000001D0BF90] [C000000000021D4C] .kernel_thread+0x4c/0x68
Instruction dump:
eb170000 78091fe1 418200c4 e92300d8 3b4300d8 7fba4800 419e00bc 7fba4800
41de0078 e8dc00e0 3be6fff0 e93f0108 <eba90068> 801d0010 7809ffe3 418200d0

<1>Unable to handle kernel paging request for data at address 0x3090006230fff00
Faulting instruction address: 0xc0000000000958f0
Oops: Kernel access of bad area, sig: 11 [#2]

Modules linked in: mptfc mptscsih mptbase
NIP: C0000000000958F0 LR: C000000000095A54 CTR: C0000000000976E0
REGS: c00000007efb38d0 TRAP: 0300   Not tainted  (2.6.20)
MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 28000044  XER: 00000000
DAR: 03090006230FFF00, DSISR: 0000000042000000
TASK = c00000007ef92040[4] 'events/0' THREAD: c00000007efb0000
GPR00: 0000000000100100 C00000007EFB3B50 C000000000768910 C00000000FFA8B80
GPR04: C0000000062DB6B8 0000000000000018 C00000013AEB1250 C00000013BF37B00
GPR08: C00000013AEB1000 0000000000200200 03090006230FFF00 0800250009200100
GPR12: 0000000000000000 C000000000671C80 000000000023FB28 C00000000058C6D8
GPR16: C000000000664DB0 000000000023FB20 C00000000058B380 C00000000058C5E8
GPR20: C000000000664B40 C00000000058B130 C00000000058C018 000000000023FB30
GPR24: C00000000FFAB010 0000000000000018 C000000000795E38 0000000000000000
GPR28: C00000000FFA8B80 0000000000000000 C000000000683EF8 0000000000000000
NIP [C0000000000958F0] .free_block+0x100/0x1e0
LR [C000000000095A54] .drain_array+0x84/0x160
Call Trace:
[C00000007EFB3B50] [C00000007EFB3BF0] 0xc00000007efb3bf0 (unreliable)
[C00000007EFB3C00] [C000000000095A54] .drain_array+0x84/0x160
[C00000007EFB3CA0] [C000000000097790] .cache_reap+0xb0/0x1c0
[C00000007EFB3D40] [C000000000054EE4] .run_workqueue+0xf4/0x200
[C00000007EFB3DF0] [C000000000055AC4] .worker_thread+0x1a4/0x200
[C00000007EFB3EE0] [C00000000005A538] .kthread+0x158/0x170
[C00000007EFB3F90] [C000000000021D4C] .kernel_thread+0x4c/0x68
Instruction dump:
68000080 7800cfe2 0b000000 e9040030 7d3be214 3c000010 e8e90020 3d200020
60000100 e9680000 e9480008 61290200 <f96a0000> f94b0008 f8080000 f9280008
 <1>Unable to handle kernel paging request for data at address
0x200000d0230fff58
Faulting instruction address: 0xc000000000116b38
Oops: Kernel access of bad area, sig: 11 [#3]

Modules linked in: mptfc mptscsih mptbase
NIP: C000000000116B38 LR: C0000000001174BC CTR: C000000000516B90
REGS: c00000013bda38c0 TRAP: 0300   Not tainted  (2.6.20)
MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 44000088  XER: 20000000
DAR: 200000D0230FFF58, DSISR: 0000000040000000
TASK = c00000013bcdb7e0[918] 'kjournald' THREAD: c00000013bda0000
GPR00: 0000000000000000 C00000013BDA3B40 C000000000768910 200000D0230FFF00
GPR04: C00000013BDA3C70 0000000000000000 0000000024000082 C00000000000FBD8
GPR08: C00000013BDA3AC0 C00000013BDA0000 00000000000000A9 C00000013B065780
GPR12: 0000000000000000 C000000000671C80 000000000023FB28 C00000000058C6D8
GPR16: C00000013BCC8000 000000000023FB20 C00000000058B380 C00000000058C5E8
GPR20: C000000000664B40 C00000000058B130 C00000007EC2D200 C00000013BDA3C70
GPR24: 0000000000000000 0800250009200100 C00000013BDA3C70 0000000000000000
GPR28: C00000013BDA0048 0001000002010010 C0000000006A5620 C00000013B065780
NIP [C000000000116B38] .journal_clean_one_cp_list+0x48/0x130
LR [C0000000001174BC] .__journal_clean_checkpoint_list+0x6c/0xe0
Call Trace:
[C00000013BDA3C00] [C0000000001174BC] .__journal_clean_checkpoint_list+0x6c/0xe0
[C00000013BDA3CC0] [C000000000114C08] .journal_commit_transaction+0x1b8/0x1240
[C00000013BDA3E00] [C00000000011A610] .kjournald+0xd0/0x260
[C00000013BDA3EE0] [C00000000005A538] .kthread+0x158/0x170
[C00000013BDA3F90] [C000000000021D4C] .kernel_thread+0x4c/0x68
Instruction dump:
fb61ffd8 fb81ffe0 f8010010 fba1ffe8 fbe1fff8 f821ff41 38000000 7c972378
3b000000 90040000 41820068 78290464 <eb230058> 7c7f1b78 3b490048 60000000
 <3>BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
BUG: scheduling while atomic: automount/0x09200100/4810
Call Trace:
[C00000013B0B7CA0] [C00000000000F384] .show_stack+0x54/0x1f0 (unreliable)
[C00000013B0B7D50] [C0000000005170C4] .schedule+0x534/0x620
[C00000013B0B7E30] [C000000000008BBC] do_work+0x14/0x2c
------------[ cut here ]------------
kernel BUG at kernel/timer.c:528!
Oops: Exception in kernel mode, sig: 5 [#4]

Modules linked in: mptfc mptscsih mptbase
NIP: C00000000004B5F4 LR: C00000000004B840 CTR: C0000000002E8F50
REGS: c000000006af3100 TRAP: 0700   Not tainted  (2.6.20)
MSR: 9000000000029032 <EE,ME,IR,DR>  CR: 48002088  XER: 20000000
TASK = c0000000066f6040[5878] 'mptfc_wq_4' THREAD: c000000006af0000
GPR00: 0000000000000001 C000000006AF3380 C000000000768910 C000000000791360
GPR04: C00000013B0B3B30 000000000000003F 0000000000000100 00000000000448EA
GPR08: C000000006AF34A0 E00000D02376EC5F C000000001C98AF0 C00000013B0B3B30
GPR12: 0000000028002042 C000000000671C80 000000000023FB28 C00000000058C6D8
GPR16: C000000006AF3C50 C000000006AF3C60 C0000000007943E0 20C49BA5E353F7CF
GPR20: 431BDE82D7B634DB 000000000000000A C000000006AF0000 0000000000000000
GPR24: C000000000674D70 0000000000200200 0000000000000100 000000000000003F
GPR28: C000000000791360 C000000006AF33F0 C000000000680DD0 230FFF00200000D0
NIP [C00000000004B5F4] .cascade+0x74/0xc0
LR [C00000000004B840] .run_timer_softirq+0xe0/0x250
Call Trace:
[C000000006AF3380] [C00000000070AE18] 0xc00000000070ae18 (unreliable)
[C000000006AF3430] [C00000000004B840] .run_timer_softirq+0xe0/0x250
[C000000006AF3500] [C000000000046428] .__do_softirq+0xc8/0x1a0
[C000000006AF35C0] [C00000000000C664] .do_softirq+0x64/0xa0
[C000000006AF3640] [C000000000046214] .irq_exit+0x64/0x80
[C000000006AF36C0] [C00000000000C790] .do_IRQ+0xf0/0x120
[C000000006AF3740] [C0000000000041DC] hardware_interrupt_entry+0x18/0x1c
--- Exception: 501 at .local_irq_restore+0x38/0x50
    LR = .schedule+0x2e4/0x620
[C000000006AF3A30] [C000000000516E4C] .schedule+0x2bc/0x620 (unreliable)
[C000000006AF3B10] [D000000000166184] .mpt_config+0x294/0x330 [mptbase]
[C000000006AF3BE0] [D00000000017544C] .mptfc_rescan_devices+0x1ec/0x6e0 [mptfc]
[C000000006AF3D40] [C000000000054EE4] .run_workqueue+0xf4/0x200
[C000000006AF3DF0] [C000000000055AC4] .worker_thread+0x1a4/0x200
[C000000006AF3EE0] [C00000000005A538] .kthread+0x158/0x170
[C000000006AF3F90] [C000000000021D4C] .kernel_thread+0x4c/0x68
Instruction dump:
fbaa0000 7d24012a f9410078 e8810070 7fbd2000 e8040000 419e0034 7c1f0378
e8040028 7f800278 3120ffff 7c090110 <0b000000> 7f83e378 4bfffc95 7fbdf800
 <0>Kernel panic - not syncing: Fatal exception in interrupt
 <0>Rebooting in 180 seconds..


and on boot I get the following:


 * Letting udev process events ... *   udev loading module mptfc
Oops: Exception in kernel mode, sig: 4 [#1]

Modules linked in: mptfc mptscsih mptbase
NIP: C000000000EB44B0 LR: D0000000000618B4 CTR: C000000000EB44B0
REGS: c000000006513810 TRAP: 0700   Not tainted  (2.6.20)
MSR: 9000000000089032 <EE,ME,IR,DR>  CR: 24002028  XER: 00000000
TASK = c00000000655b040[2701] 'mptfc_wq_4' THREAD: c000000006510000
GPR00: 0000000000000002 C000000006513A90 C000000000768910 0000000000000001
GPR04: C00000000FBDE800 C00000000067A1B8 0000000000000000 000000000000000F
GPR08: 0000000000200200 00000000000006B8 0000000000100100 C000000000EB44B0
GPR12: D000000000069E40 C000000000671C80 000000000023FB28 C00000000058C6D8
GPR16: C000000006513C50 C000000006513C60 0000000000000ACD C00000000FA31E68
GPR20: C00000000FBDEED8 C000000000EB44D4 0000000000010000 C00000000FA2C800
GPR24: 0000000000000000 0000000000000024 D000000000070438 C00000000FBDE800
GPR28: C00000000FBDE800 C000000006513C60 D000000000078B80 C00000013B28FF00
NIP [C000000000EB44B0] 0xc000000000eb44b0
LR [D0000000000618B4] .mpt_get_msg_frame+0x64/0xf0 [mptbase]
Call Trace:
[C000000006513A90] [0000000000000ACC] 0xacc (unreliable)
[C000000006513B10] [D000000000064F70] .mpt_config+0x80/0x330 [mptbase]
[C000000006513BE0] [D00000000007444C] .mptfc_rescan_devices+0x1ec/0x6e0 [mptfc]
[C000000006513D40] [C000000000054EE4] .run_workqueue+0xf4/0x200
[C000000006513DF0] [C000000000055AC4] .worker_thread+0x1a4/0x200
[C000000006513EE0] [C00000000005A538] .kthread+0x158/0x170
[C000000006513F90] [C000000000021D4C] .kernel_thread+0x4c/0x68
Instruction dump:
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX

<0>------------[ cut here ]------------
kernel BUG at lib/prio_tree.c:149!
Oops: Exception in kernel mode, sig: 5 [#2]

Modules linked in: mptfc mptscsih mptbase
NIP: C000000000240550 LR: C00000000007DC9C CTR: 000000000000000C
REGS: c00000000fe03490 TRAP: 0700   Not tainted  (2.6.20)
MSR: 9000000000029032 <EE,ME,IR,DR>  CR: 24224442  XER: 20000000
TASK = c00000013bcd37e0[925] 'bash' THREAD: c00000000fe00000
GPR00: 0000000000000001 C00000000FE03710 C000000000768910 C000000000EB42C0
GPR04: C00000007ED18A08 C00000013BD856C0 C00000000FE036D0 C00000007ED18A28
GPR08: C00000007ED189C0 E00000D05DDE7507 C00000000FF7D228 C00000013BD856C0
GPR12: 0000000024224444 C000000000671C80 00000000100F5C3C 0000000000000001
GPR16: 00000000100F5C40 00000000100F4B20 00000000100F5BBC FFFFFFFFFFFFFFFF
GPR20: 00000000100D9650 00000FFFFF813760 0000000000000001 0000000000000000
GPR24: C00000000FE03EA0 0000000000000000 0000000000000000 C00000000FE03940
GPR28: 0000040000000000 C00000013BD85678 C000000000683930 C00000000FF7D1E0
NIP [C000000000240550] .prio_tree_replace+0xa0/0xc0
LR [C00000000007DC9C] .vma_prio_tree_remove+0x7c/0x1a0
Call Trace:
[C00000000FE03710] [C00000000007DD24]
.vma_prio_tree_remove+0x104/0x1a0 (unreliable)
[C00000000FE037A0] [C000000000085C54] .__remove_shared_vm_struct+0x74/0xb0
[C00000000FE03820] [C000000000084000] .free_pgtables+0xb0/0x140
[C00000000FE038D0] [C000000000085910] .exit_mmap+0xb0/0x140
[C00000000FE03980] [C00000000003CD70] .mmput+0x60/0x100
[C00000000FE03A00] [C0000000000418A4] .exit_mm+0xa4/0x140
[C00000000FE03A90] [C0000000000436CC] .do_exit+0x17c/0x920
[C00000000FE03B70] [C000000000043EB4] .do_group_exit+0x44/0xb0
[C00000000FE03BF0] [C00000000004F904] .get_signal_to_deliver+0x364/0x4b0
[C00000000FE03CA0] [C000000000016BAC] .do_signal+0x8c/0x750
[C00000000FE03E30] [C000000000008BD0] do_work+0x28/0x2c
Instruction dump:
4d9e0020 f8050008 60000000 60000000 60000000 e9240008 f8a90010 4e800020
e8030000 7c800278 3120ffff 7c090110 <0b000000> f8a50010 f8a30000 4bffff94
 <1>Fixing recursive fault but reboot is needed!

Unable to handle kernel paging request for data at address 0x230fff0021000138
Faulting instruction address: 0xc000000000073198
Oops: Kernel access of bad area, sig: 11 [#3]

Modules linked in: mptfc mptscsih mptbase
NIP: C000000000073198 LR: C000000000081358 CTR: C000000000073120
REGS: c00000000670b810 TRAP: 0300   Not tainted  (2.6.20)
MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 28002448  XER: 20000000
DAR: 230FFF0021000138, DSISR: 0000000040000000
TASK = c00000013bccf7e0[2196] 'udevd' THREAD: c000000006708000
GPR00: 00000400001D7000 C00000000670BA90 C000000000768910 C00000000FF7D090
GPR04: 000000000000000C C00000000670BBD0 0000000000000000 0000000000000400
GPR08: C00000007EB6A980 0000000000000000 C000000000073120 0000000000000000
GPR12: 0000000048002444 C000000000671C80 000000000023FB28 0000000028224422
GPR16: 6DB6DB6DB6DB6DB7 C000000000795E38 C00000000670BBD0 00000400001E3000
GPR20: C00000000670BBD0 230FFF00210000D0 C00000000FF7D090 0000000000000002
GPR24: C000000000795D10 0000000000000000 C00000013BC804E0 000000000000000C
GPR28: C00000013BC80480 C000000000EB42A0 C0000000006832D0 C000000006708000
NIP [C000000000073198] .filemap_nopage+0x78/0x480
LR [C000000000081358] .__handle_mm_fault+0x318/0xbe0
Call Trace:
[C00000000670BA90] [C000000000073298] .filemap_nopage+0x178/0x480 (unreliable)
[C00000000670BB60] [C000000000081358] .__handle_mm_fault+0x318/0xbe0
[C00000000670BC60] [C000000000028098] .do_page_fault+0x478/0x630
[C00000000670BE30] [C0000000000048FC] handle_page_fault+0x20/0x58
Instruction dump:
3b200000 3ae00002 eb1e8058 eb830090 e8030008 e9230088 ebbc00d0 7c802050
3b5c0060 7884a302 eabd0000 7f644a14 <e9350068> 39290fff 7929a302 7fbb4840


Thanks,
Sabuj Pattanayek

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3)
  2008-03-19 21:11     ` Sabuj Pattanayek
@ 2008-03-19 23:36       ` Sabuj Pattanayek
  2008-04-03  0:02         ` Sabuj Pattanayek
  0 siblings, 1 reply; 5+ messages in thread
From: Sabuj Pattanayek @ 2008-03-19 23:36 UTC (permalink / raw)
  To: Michael Reed; +Cc: Andrew Morton, linux-kernel, linux-scsi, Moore, Eric

Hi,

>  >  Does the exception happen every time?

Well, I just got the kernel to boot all the way with both 2.6.24.3 and
2.6.20 accidentally by changing the FC host side settings on all the
target infortrend eonstor RAID boxes to point-to-point from loop. All
the targets and initiators are connected to a QLogic 5600 FC switch
and zones have been setup such that the initiators can see only the
targets. This active zoning has not changed during testing.

At the time I was actually testing the eonstor boxes outside the FC
switch by connecting them directly to another Apple Xserve running OS
X, which is using the same LSI FC HBA that I reported in my first post
regarding this issue. After testing that each target (LUN) could be
seen by the LSI FC HBA in the OSX Xserve, I reconnected the targets
back into the switch. Since the Linux Xserve was endlessly rebooting
itself after each kernel panic, to my surprise I had found that it
completed booting! All targets and LUNs can be seen under "cat
/proc/scsi/scsi".

To confirm that the loop host side setting was causing the problem, I
set one of the eonstor's back to loop and reset it. Immediately after
the eonstor came up it caused a kernel panic on the Linux Xserve
(which was already booted into the OS). This was the output on the
console:

porpoise login: Unrecoverable FP Unavailable Exception 800 at d000000000073da0
Oops: Unrecoverable FP Unavailable Exception, sig: 6 [#1]

Modules linked in: mptfc mptscsih mptbase
NIP: D000000000073DA0 LR: D0000000000675BC CTR: D000000000073DA0
REGS: c00000000076b4e0 TRAP: 0800   Not tainted  (2.6.20)
MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 48004048  XER: 00000000
TASK = c000000000671420[0] 'swapper' THREAD: c000000000768000
GPR00: D000000000073DA0 C00000000076B760 D0000000000803D0 C00000000FA46000
GPR04: C000000001B81310 0000000000000053 C00000000076B833 9000000000049032
GPR08: C000000001B82800 D0000000000782F8 0000000000000000 0000000000000000
GPR12: D00000000006A2F0 C000000000671C80 000000000023FB28 C00000000058C6D8
GPR16: C000000000664DB0 000000000023FB20 C00000000058B380 C00000000058C5E8
GPR20: C000000000664B40 C00000000058B130 0000000000000001 000000000023FB30
GPR24: C00000000058C6D8 0000000000000006 C00000000FA46000 C000000001B81310
GPR28: D000000000071AD0 0000000000000000 D000000000078B80 D000000000071B40
NIP [D000000000073DA0] .mptfc_event_process+0x0/0xc0 [mptfc]
LR [D0000000000675BC] .mpt_base_reply+0x4bc/0xdd0 [mptbase]
Call Trace:
[C00000000076B760] [D0000000000672BC] .mpt_base_reply+0x1bc/0xdd0
[mptbase] (unreliable)
[C00000000076B890] [D0000000000680FC] .mpt_interrupt+0x22c/0x770 [mptbase]
[C00000000076B940] [C00000000006CAC0] .handle_IRQ_event+0x70/0x100
[C00000000076B9E0] [C00000000006E76C] .handle_fasteoi_irq+0x8c/0x120
[C00000000076BA70] [C00000000000C788] .do_IRQ+0xe8/0x120
[C00000000076BAF0] [C0000000000041DC] hardware_interrupt_entry+0x18/0x1c
--- Exception: 501 at .cpu_idle+0xd8/0x140
    LR = .cpu_idle+0xd8/0x140
[C00000000076BDE0] [C000000000011934] .cpu_idle+0x124/0x140 (unreliable)
[C00000000076BE70] [C000000000009394] .rest_init+0x34/0x50
[C00000000076BEF0] [C00000000062D910] .start_kernel+0x260/0x300
[C00000000076BF90] [C000000000008460] .start_here_common+0x54/0xf4
Instruction dump:
c0000001 36947878 c0000001 3694789c c0000001 369478c0 c0000001 369478e4
c0000001 36947908 c0000001 3694792c <c0000001> 36947950 c0000001 36947974
 <0>Kernel panic - not syncing: Fatal exception in interrupt
 <0>Rebooting in 180 seconds..

I set the FC host side connection back to point-to-point and the Linux
Xserve was again able to boot into the OS. In any case, don't think
this is normal because the OSX XServe doesn't panic if it sees targets
set to loop.

Thanks,
Sabuj Pattanayek

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3)
  2008-03-19 23:36       ` Sabuj Pattanayek
@ 2008-04-03  0:02         ` Sabuj Pattanayek
  0 siblings, 0 replies; 5+ messages in thread
From: Sabuj Pattanayek @ 2008-04-03  0:02 UTC (permalink / raw)
  To: linux-kernel, linux-scsi, Moore, Eric

Hi all,

On Wed, Mar 19, 2008 at 6:36 PM, Sabuj Pattanayek <sabujp@gmail.com> wrote:
> Hi,
>  >  >  Does the exception happen every time?
>

After going through lots of hardware (HBAs, motherboards, PSUs) it was
determined that there was a problem with the PCI-X riser in this
particular system. Sorry about the false alarm but this one was
difficult to track down.

Thanks,
Sabuj

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2008-04-03  0:02 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <e64671580803171629g534ebf34l89adbb14bb985dc7@mail.gmail.com>
2008-03-18  7:25 ` kernel exception in Fusion MPT base driver 3.04.06 (linux-2.6.24.3) Andrew Morton
2008-03-18 17:40   ` Michael Reed
2008-03-19 21:11     ` Sabuj Pattanayek
2008-03-19 23:36       ` Sabuj Pattanayek
2008-04-03  0:02         ` Sabuj Pattanayek

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