Re: [bug] ata subsystem related crash with latest -git

[Jeff Garzik <jgarzik@pobox.com>]

Mark Lord wrote:
> Linus Torvalds wrote:
> > On Wed, 17 Oct 2007, Mark Lord wrote:
> > > It would be good to have something soon-ish.
> > > This "dead at boot time" issue is impacting the general ability to test
> > > patches against latest -git in time for the current merge window.
> >
> > In the meantime, does the patch I sent out help people? I'd like to 
> > get feedback, but I'm a lazy bum, and don't use DEBUG_PAGEALLOC 
> > myself, so I was hoping that people who actually see this could 
> > comment on my untested suggestion.
>
> Oh.. so this bug is supposed to only bite with DEBUG_PAGEALLOC=y ??
>
> Then something else is broken, perhaps.  I just saw a long traceback
> scroll off the top of the screen, with lots of bio_* functions in the list
> and assumed it was the same bug.
>
> Mmm.. I'll get out the camera and try it again now..

I'm currently bisecting on two machines (sata_mv and sata_nv).  sata_mv 
suddenly started spewing errors in recent kernels, but kernels from ~48 
hours ago are just fine.  AMD64 sata_nv machine will simply lock up if I 
push it too hard.  Again, reproducible, and kernels from ~48 hours ago 
are fine.

AHCI machine so far seems fine (kernel ~24 hours ago), storage-wise, but 
the hda_intel audio decided to stop working :)

I'm quite happy to test patches, but I never run with DEBUG_PAGEALLOC so 
that shouldn't be causing the problems here.

	Jeff



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