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

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Date:	Mon, 20 Feb 2012 11:11:05 +0200 (EET)
From:	Meelis Roos <mroos@...ux.ee>
To:	Tejun Heo <tj@...nel.org>
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>
Subject: Re: OF-related boot crash in 3.3.0-rc3-00188-g3ec1e88

> So yes, it looks like memblock.

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>

:040000 040000 f74f55a80162a0a1a45c135ca62a51b9af824d53 a2dc2bccf4a30ee516709d0fdcb33faae11059ff M      include
:040000 040000 e4c4292fe66c4d8d6aa89710ce9f538fbf550ae8 5677586fad018ae9978d53084ba5d617fe231a3d M      mm

-- 
Meelis Roos (mroos@...ux.ee)
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