Re: Fwd: Re: 2.6.27-rc1 oops on boot -- cs423x? (Corrected subject)

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On Wednesday 30 July 2008 10:40:44 am Andi Kleen wrote:
> On Wed, Jul 30, 2008 at 08:39:18AM -0600, Bjorn Helgaas wrote:
> > Hi Andi,
> > 
> > Can you put the patch below in your acpi tree?  It fixes an issue
> > in 2.6.27-rc1 (URL below).  Thanks.
> 
> Does that actually fix an oops or is it just a cosmetic problem?

We hit the WARN_ON here:

  WARNING: at lib/vsprintf.c:609 vsnprintf+0x6c7/0x6d0()

which causes an alarming backtrace.  The patch keeps us from hitting
the WARN_ON, but let me look into it a bit more.  I don't understand
how we hit it in the first place -- looks like we'd have to pass
in a negative size, and I haven't figured out how even the unpatched
code would do that.

Bjorn
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