Re: random hangs during boot in 3.0-rc

From: Mike Galbraith
Date: Tue Jun 07 2011 - 01:46:01 EST

On Mon, 2011-06-06 at 23:46 -0400, Dave Jones wrote:
> I have two machines that occasionally (like 1 in 10 boots or so) hang solid
> during boot-up. Happens in different places, but usually either when loading
> the microcode driver, or while doing a fsck.
> I did a bisect which took a *long* time, since I booted each kernel 10 times
> before pronouncing it 'good'. Once it fingered the bad commit, I started over,
> and arrived at the same conclusion a second time.
> But the actual commit is a merge commit. What now ?
> commit 42ac9e87fdd89b77fa2ca0a5226023c1c2d83226
> Merge: 057f3fa f0e615c
> Author: Ingo Molnar <mingo@xxxxxxx>
> Date: Thu Apr 21 11:39:21 2011 +0200
> Merge commit 'v2.6.39-rc4' into sched/core
> Merge reason: Pick up upstream fixes.
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
> It's possible I just didn't get 'lucky' and marked something as good,
> when it wouldn't have triggered until the 11th boot, which is why I did that
> second bisect run. Should I bother doing a 3rd try ?
> The kernels have a bunch of debug options turned on, but I don't get anything
> out of the machine at all, it's just wedged solid.

Ditto here using a bug report config. Seems to be cured now.

> The machines I'm seeing this on are a quad-core AMD Phenom, and a Dual core2duo,
> so quite disparate hardware. (And making me believe it's too coincidental to be a
> hardware problem).
> Anyone else seeing anything like this ?

Maybe this?


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at