linux-kernel - Re: OF-related boot crash in 3.3.0-rc3-00188-g3ec1e88

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Message-ID: <20120220170603.GC7836@mtj.dyndns.org>
Date:	Mon, 20 Feb 2012 09:06:03 -0800
From:	Tejun Heo <tj@...nel.org>
To:	Meelis Roos <mroos@...ux.ee>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	sparclinux@...r.kernel.org,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	sam@...nborg.org
Subject: Re: OF-related boot crash in 3.3.0-rc3-00188-g3ec1e88

Hello, Meelis, Sam.

Sorry about the delay.  I've been pretty swamped lately.

On Mon, Feb 20, 2012 at 11:11:05AM +0200, Meelis Roos wrote:
> Finished bisecting on the other machine too (Sun Fire V100 where strlen 
> crashes):
> 
> 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 is the first bad commit
> commit 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077
> Author: Tejun Heo <tj@...nel.org>
> Date:   Thu Dec 8 10:22:09 2011 -0800
> 
>     memblock: Reimplement memblock allocation using reverse free area iterator
>     
>     Now that all early memory information is in memblock when enabled, we
>     can implement reverse free area iterator and use it to implement NUMA
>     aware allocator which is then wrapped for simpler variants instead of
>     the confusing and inefficient mending of information in separate NUMA
>     aware allocator.
>     
>     Implement for_each_free_mem_range_reverse(), use it to reimplement
>     memblock_find_in_range_node() which in turn is used by all allocators.
>     
>     The visible allocator interface is inconsistent and can probably use
>     some cleanup too.
>     
>     Signed-off-by: Tejun Heo <tj@...nel.org>
>     Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>     Cc: Yinghai Lu <yinghai@...nel.org>

Hmmm.... So, different bisection results from two machines?  That's a
bit weird.  I *think* this bisection result makes more sense.  Can you
please verify the bisection result on e2500 once more?

Thanks.

--
tejun
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