linux-kernel - Re: kernel expection generated with 2.6.21-mm1 kernel boot up

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Message-ID: <46406816.8030106@in.ibm.com>
Date:	Tue, 08 May 2007 17:37:50 +0530
From:	Srinivasa Ds <srinivasa@...ibm.com>
To:	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
CC:	linux-kernel@...r.kernel.org,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: kernel expection generated with 2.6.21-mm1 kernel boot up

Kamalesh Babulal wrote:
> Hi,
> 
> I tried compiling and booting up with 2.6.21-mm1 kernel
> on the following machine
> 
> Architecture      :    PPC64
> CPU Type           :    POWER5 (gr)
> Machine Type    :    CHRP IBM,9117-570
> Base OS              :    Fedora Core 5
> 

> 
> Faulting instruction address: 0xc0000000000cc5e4
> 
> cpu 0x1: Vector: 300 (Data Access) at [c000000005373320]
> 
>   pc: c0000000000cc5e4: .slab_free+0x6c/0x424
> 
>   lr: c00000000002fa70: .pgtable_free_tlb+0xd0/0x140
> 
>   sp: c0000000053735a0
> 
>  msr: 8000000000009032
> 

Looks like there is a bug in SLUB implementaion for ppc64 in 2.6.21-mm1.
I unmarked CONFIG_SLUB and build the kernel, its booting cleary now.

Thanks
 Srinivasa DS
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