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

From: Meelis Roos
Date: Mon Feb 20 2012 - 17:32:20 EST


> 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@xxxxxxxxxx>
> > 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@xxxxxxxxxx>
> > Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> > Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
>
> 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?

You were right. The first machine now bisects down to the same commit -
I was confused by "0 revisions to test" and did not run the last step
whe first bisecting.

--
Meelis Roos (mroos@xxxxxxxx)
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