Re: Next April 28: boot failure on PowerPC with SLQB

From: Stephen Rothwell <sfr@canb•auug.org.au>
To: Nick Piggin <npiggin@suse•de>
Cc: Christoph Lameter <cl@linux-foundation•org>,
	linux-kernel <linux-kernel@vger•kernel.org>,
	linuxppc-dev@ozlabs•org, Pekka Enberg <penberg@cs•helsinki.fi>,
	linux-next@vger•kernel.org
Subject: Re: Next April 28: boot failure on PowerPC with SLQB
Date: Thu, 30 Apr 2009 13:21:18 +1000	[thread overview]
Message-ID: <20090430132118.4a36f737.sfr@canb.auug.org.au> (raw)
In-Reply-To: <49F87FAB.9050408@in.ibm.com>

[-- Attachment #1.1: Type: text/plain, Size: 3513 bytes --]

Hi Nick,

On Wed, 29 Apr 2009 21:56:19 +0530 Sachin Sant <sachinp@in•ibm.com> wrote:
>
> Nick Piggin wrote:
> > Does this help?
> > ---
> With the patch the machine boots past the failure point, but panics
> immediately with the following trace...

That patch also changes the behaviour of my machine.  I now get:

calling  .init_trace_printk+0x0/0x34 @ 1
initcall .init_trace_printk+0x0/0x34 returned 0 after 0 usecs
Unable to handle kernel paging request for data at address 0x00000030
Faulting instruction address: 0xc00000000008ae7c
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=128 NUMA pSeries
Modules linked in:
NIP: c00000000008ae7c LR: c0000000002b0cb8 CTR: 0000000000000000
REGS: c0000000d6357910 TRAP: 0300   Not tainted  (2.6.30-rc3-autokern1)
MSR: 8000000000009032 <EE,ME,IR,DR>  CR: 28000084  XER: 0000000f
DAR: 0000000000000030, DSISR: 0000000042000000
TASK = c0000000fe368000[1] 'swapper' THREAD: c0000000d6354000 CPU: 0
GPR00: 0000000000000000 c0000000d6357b90 c000000000b04410 0000000000000028 
GPR04: c0000000006d7bd0 c000000000b95400 0000000000000000 c0000000fe368980 
GPR08: 000000000000004c 0000000000000291 0000000000000002 c0000000012bfd5c 
GPR12: 0000000048000088 c000000000b53280 0000000000000000 0000000002100000 
GPR16: c0000000006c8f50 c0000000006c76c8 0000000000000000 00000000003d8800 
GPR20: 00000000028c6bb0 c0000000007c6bb0 00000000028c6e20 c0000000007c6e20 
GPR24: c0000000006c89b8 0000000000000028 0000000000000003 c000000000b95400 
GPR28: c0000000006d7bd0 0000000000000010 c000000000a68708 0000000000000010 
NIP [c00000000008ae7c] .lockdep_init_map+0x3c/0x57c
LR [c0000000002b0cb8] .__spin_lock_init+0x44/0x90
Call Trace:
[c0000000d6357b90] [c000000000a68708] klist_remove_waiters+0xe210/0x2e2e0 (unreliable)
[c0000000d6357c50] [c0000000002b0cb8] .__spin_lock_init+0x44/0x90
[c0000000d6357d00] [c00000000054552c] .timer_cpu_notify+0xec/0x2c4
[c0000000d6357db0] [c000000000540bc0] .notifier_call_chain+0x5c/0xcc
[c0000000d6357e50] [c000000000544ee0] .cpu_up+0xe8/0x1c4
[c0000000d6357f00] [c00000000078fb94] .kernel_init+0xf8/0x220
[c0000000d6357f90] [c0000000000262b8] .kernel_thread+0x54/0x70
Instruction dump:
fbc1fff0 fbe1fff8 fae1ffb8 fb01ffc0 f8010010 fb41ffd0 fb61ffd8 fb81ffe0 
f821ff41 ebc2b160 38000000 7c791b78 <f8030008> 7cbf2b78 7cdd3378 e93e8138 
---[ end trace 31fd0ba7d8756001 ]---
Kernel panic - not syncing: Attempted to kill init!
Call Trace:
[c0000000d6357570] [c00000000000fd58] .show_stack+0x70/0x184 (unreliable)
[c0000000d6357620] [c00000000005ed34] .panic+0x80/0x1b4
[c0000000d63576c0] [c00000000006337c] .do_exit+0x84/0x6f0
[c0000000d6357780] [c000000000024350] .die+0x24c/0x27c
[c0000000d6357820] [c00000000002c1f4] .bad_page_fault+0xb8/0xd4
[c0000000d63578a0] [c00000000000534c] handle_page_fault+0x3c/0x5c
--- Exception: 300 at .lockdep_init_map+0x3c/0x57c
    LR = .__spin_lock_init+0x44/0x90
[c0000000d6357b90] [c000000000a68708] klist_remove_waiters+0xe210/0x2e2e0 (unreliable)
[c0000000d6357c50] [c0000000002b0cb8] .__spin_lock_init+0x44/0x90
[c0000000d6357d00] [c00000000054552c] .timer_cpu_notify+0xec/0x2c4
[c0000000d6357db0] [c000000000540bc0] .notifier_call_chain+0x5c/0xcc
[c0000000d6357e50] [c000000000544ee0] .cpu_up+0xe8/0x1c4
[c0000000d6357f00] [c00000000078fb94] .kernel_init+0xf8/0x220
[c0000000d6357f90] [c0000000000262b8] .kernel_thread+0x54/0x70

-- 
Cheers,
Stephen Rothwell                    sfr@canb•auug.org.au
http://www.canb.auug.org.au/~sfr/

[-- Attachment #1.2: Type: application/pgp-signature, Size: 197 bytes --]

[-- Attachment #2: Type: text/plain, Size: 146 bytes --]

_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs•org
https://ozlabs.org/mailman/listinfo/linuxppc-dev