Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017ata_sff_hsm_move+0x45e/0x750()

[Ingo Molnar]

* Jeff Garzik <jeff@xxxxxxxxxx> wrote:

> Ingo Molnar wrote:
>> 871af12: libata: Add 32bit PIO support
>
> What happens when you back this out?

yep, that's the one that looked most suspect to me too so i already 
reverted it in tip/out-of-tree.

But in the normal tip/master test cycle the box takes about 50 minutes to 
build its random kernel and reboot into it (800 MHz P3), so i started a 
full automated bisection instead driven from a faster box.

The bug triggers deterministically so whatever leads to it, we should have 
it within ~20 minutes with a bit of luck (== there's no other bug in the 
bisection run that makes bisection more difficult).

The current bisection state is:

 # bad:  [9a100a44] Merge git://git.kernel.org/pub/scm/linux/kernel/gi
 # good: [9e42d0cf] Merge git://git.kernel.org/pub/scm/linux/kernel/gi
 # good: [e441d54d] Btrfs: add permission checks to the ioctls
 # bad:  [cd764695] Merge git://git.kernel.org/pub/scm/linux/kernel/gi
 # bad:  [a419df8a] Merge branch 'upstream-linus' of git://git.kernel.
 # good: [61bce0f1] pid: generalize task_active_pid_ns

and "871af12: libata: Add 32bit PIO support" is still in the bisection 
window.

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/