Re: [3.8-rc4 arm] SCSI_SYM53C8XX_2 module cannot register IRQ

From: Linus Walleij
Date: Tue Jan 22 2013 - 03:03:14 EST


On Sun, Jan 20, 2013 at 1:24 PM, Tetsuo Handa
<penguin-kernel@xxxxxxxxxxxxxxxxxxx> wrote:

> While (1) was fixed by now, I can't bisect (2) since (1) is preventing (2) from
> printing messages.

I usually bisect like this:

1. Get hold of the patch fixing the boot regression:
git format-patch
f5565295892eb93c3191aa241405fe8b685542d6^..f5565295892eb93c3191aa241405fe8b685542d6

2. At each iterative step using git bisect:
patch -p1 < 0001-ARM-7610-1-versatile-bump-IRQ-numbers.patch

3. Boot/trial-and-horror

4. git reset --hard HEAD
To nullify the effects of the patch.

5. git bisect [good|bad]

6. Iterate from (2) until you find the bug.

Yours,
Linus Walleij
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