Re: 2.6.13-mm2

Daniel Ritz
2005-09-11T20:08:45Z

On Sunday 11 September 2005 21.36, Andrew Morton wrote:
> "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> >
> > >
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.13/2.6.13-mm2/
> > >
> > > (kernel.org propagation is slow. There's a temp copy at
> > > http://www.zip.com.au/~akpm/linux/patches/stuff/2.6.13-mm2.bz2)
> >
> > Could you please reintroduce the yenta-free_irq-on-suspend.patch (attached)
> > into -mm? My box does not resume from disk without it.
>
> No probs.
>
> Daniel, do you remember why we decided to drop it? What should we do about
> this? Thanks.
>

yeah, there was a long discussion about it. see:
http://marc.theaimsgroup.com/?t=112275164900002&r=1&w=4
the reason being that it breaks APM suspend on Hugh Dickins' (added to cc:) laptop.
Linus was quite clear about why reverting...
http://marc.theaimsgroup.com/?l=linux-kernel&m=112278810115252&w=4

we should look at both problems in detail:
- with APM it seems to break because the bridge gives interrupt before the
handler is installed.
- with ACPI i think some _other_ device gives the interrupts too early. but
when all devices on the interrupt unregister the irq is disabled and the
problem is hidden.

i don't think we can do mutch about the APM case...

so Rafael, your /proc/interrupts, lspci -vvv and dmesg, please.

rgds
-daniel