Re: kernel 2.6.38.6 MMC controller problem (fwd)

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On Mon, 16 May 2011, Chris Ball wrote:

> Hi,
> 
> On Mon, May 16 2011, David Strobach wrote:
> > I don't always end up with the divide error either. See the log in the
> > OP. We can also ask for logs on the archlinux forum thread, I
> > referenced in the OP.
> 
> Oh, that's interesting -- https://bugs.archlinux.org/task/23778 was
> opened on April 15th with the divide error crash, but I didn't send
> Guennadi's patch to Linus until May 9th.  So this patch can't be the
> whole story.
> 
> David, are you very confident in the bisection being correct?
> Also, perhaps you could confirm that setting CONFIG_MMC_CLKGATE=n
> makes all of the problems go away, even with the bad patch applied?
> 
> Thanks.  I'll plan on sending Linus a revert of Guennadi's patch today,
> assuming he doesn't release 2.6.39 within a few hours..

Hm, don't know... The patch _definitely_ fixes problems in some 
configurations, and _maybe_ causes problems in others. You cannot 
reproduce the problem. Have you got a .config from the OP? We can also fix 
the problem in stable - whether it turns out to be my patch or not. Can 
you maybe wait for about 6 hours, until I get a chance to test this on my 
laptop? No, I don't have archlinux on it. What distro(s) have you tried? 
Do all reporters use archlinux?

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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