Re: 2.6.21-mm2: ACPI exception on resume

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On Wednesday, 23 May 2007 03:48, Matt Mackall wrote:
> On Tue, May 22, 2007 at 09:19:43PM -0300, Henrique de Moraes Holschuh wrote:
> > On Tue, 22 May 2007, Matt Mackall wrote:
> > > On Mon, May 21, 2007 at 08:03:49PM -0300, Henrique de Moraes Holschuh wrote:
> > > > On Mon, 21 May 2007, Matt Mackall wrote:
> > > > > BIOS Information
> > > > >         Vendor: IBM
> > > > >         Version: 1RETDHWW (3.13 )
> > > > >         Release Date: 10/29/2004
> > > > > 
> > > > > No sign of any EC version in the output.
> > > > 
> > > > This is a buggy, ancient version of the BIOS, which probably means you have
> > > > an old and slightly buggy EC firmware.  I recommend you to upgrade to BIOS
> > > > 3.21 and EC 3.04.  See http://thinkwiki.org/wiki/BIOS_Upgrade for more
> > > > details.
> > > 
> > > Really, I'd much prefer my kernel not regress instead. Updating
> > > firmware is just introducing more potential instability and ignoring
> > > the problem.
> > 
> > We can't very much know if the kernel is really buggy, then.
> 
> Whether the 'bug' is in the firmware or the kernel, it is the kernel
> that has regressed. Suspend worked fine for 2+ years before this.
> 
> Breaking working systems, either software or hardware, is a bad idea.
> I shouldn't have to upgrade my BIOS to work with a new kernel any more
> than I should have to upgrade my browser.

While I agree with that, it would really be helpful if you tested the latest -rc
kernel and saw if the bug was present in there.

If the bug is not present in the latest -rc, it'll be possible to identify the
patch that causes it to appear in -mm and find the reason of the breakage.

Greetings,
Rafael
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