linux-kernel - Re: 2.6.25-rc8-mm1 panic in rpaphp_register

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Date:	Fri, 4 Apr 2008 12:05:18 -0600
From:	Alex Chiang <achiang@...com>
To:	Badari Pulavarty <pbadari@...ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.25-rc8-mm1 panic in rpaphp_register_slot()

Hi Badari,

* Badari Pulavarty <pbadari@...ibm.com>:
> Hi Andrew & Alex,
> 
> I get following panic in rpaphp_register_slot() on
> 2.6.25-rc8-mm1. Known issue ?

I know about it now... :-/

Any chance you could turn debugging on for both rpaphp and
pci_hotplug?

Thanks.

/ac

> pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> rpaphp: RPA HOT Plug PCI Controller Driver version: 0.1
> Unable to handle kernel paging request for data at address 0x00000070
> Faulting instruction address: 0xc00000000031e4b8 
> Oops: Kernel access of bad area, sig: 11 [#1]
> SMP NR_CPUS=32 NUMA pSeries
> Modules linked in:
> NIP: c00000000031e4b8 LR: c00000000031dd60 CTR: 0000000000000000
> REGS: c0000000700dba30 TRAP: 0300   Not tainted  (2.6.25-rc8-mm1)
> MSR: 8000000000009032 <EE,ME,IR,DR>  CR: 42002022  XER: 20000009
> DAR: 0000000000000070, DSISR: 0000000040000000
> TASK = c0000000700d7990[1] 'swapper' THREAD: c0000000700d8000 CPU: 0
> GPR00: c0000000006c6e90 c0000000700dbcb0 c000000000769140 c0000000703c1440
> GPR04: c000000070226400 0000000000000000 0000000020000009 d000080080000004
> GPR08: 0000000000000001 0000000000000000 c000000071fff1b8 0000000000000000
> GPR12: 0000000000004000 c000000000690380 0000000000000000 0000000000000000
> GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> GPR20: 4000000001c00000 0000000000000000 0000000002247c38 0000000000000000
> GPR24: 0000000002247ea8 c000000071fff1b8 0000000000000000 c0000000023e8f48
> GPR28: c0000000703c1440 c000000070ff7780 c0000000006f7778 c0000000006c6e90
> NIP [c00000000031e4b8] .rpaphp_register_slot+0xd8/0x164
> LR [c00000000031dd60] .rpaphp_add_slot+0x1a4/0x260
> Call Trace:
> [c0000000700dbcb0] [c0000000700dbd70] 0xc0000000700dbd70 (unreliable)
> [c0000000700dbd40] [c00000000031dd60] .rpaphp_add_slot+0x1a4/0x260
> [c0000000700dbe20] [c000000000636864] .rpaphp_init+0x34/0x68
> [c0000000700dbea0] [c0000000006103ec] .kernel_init+0x1f8/0x38c
> [c0000000700dbf90] [c000000000023f80] .kernel_thread+0x4c/0x68
> Instruction dump:
> 48000020 e8bd0020 e89e8010 e87e8048 4bd38c09 60000000 3860fff5 48000080
> e93d0028 e89d0030 7f83e378 e9290038 <e9290070> 80a90004 78a5eee2 4bffee7d
> ---[ end trace 561bb236c800851f ]---
> Kernel panic - not syncing: Attempted to kill init!
> 
> 
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