On Wed, Sep 30, 2009 at 05:37:30PM +0200, Karol Lewandowski wrote:
> On Tue, Sep 29, 2009 at 02:58:11PM +0100, Mel Gorman wrote:
> > On Wed, Sep 23, 2009 at 01:35:31AM +0200, Karol Lewandowski wrote:
> > > Maybe I should revert following commits (chosen somewhat randomly)?
> > > 
> > > 1. 49255c619fbd482d704289b5eb2795f8e3b7ff2e
> > > 
> > > 2. dd5d241ea955006122d76af88af87de73fec25b4 - alters changes made by
> > > commit above
> > > 
> > > Any ideas?
> > > 
> > 
> > Those commits should only make a difference on small-memory machines.
> > The exact value of "small" varies but on 32 bit x86 without PAE, it would
> > be 20MB of RAM. The fact reverting the two patches makes any difference at
> > all is a surprise and likely a co-incidence.
> > 
> > If you have a reliable reproduction case, would it be possible to bisect
> > between the points
> > d239171e4f6efd58d7e423853056b1b6a74f1446..b70d94ee438b3fd9c15c7691d7a932a135c18101
> > to see if the problem is in there anywhere?
> 
> I've started with bc75d33f0 (one commit before d239171e4 in Linus'
> tree) but then my system fails to resume.
> 

Does the bug require a suspend/resume or would something like

rmmod e100
updatedb
modprobe e100

reproduce the problem?

> Whatever I do (change fb/Xorg drivers, disable X, etc.) I always end
> up with unusable display and something that looks like hard-locked
> system (I haven't tested network connectivity from another box, but
> console is surely dead).
> 
> Thanks.
> 

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab

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