linux-kernel - Re: Simple script that locks up my box with recent kernels

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Message-ID: <9a8748490611240152x3a24f96fx62cd311f52b5fafb@mail.gmail.com>
Date:	Fri, 24 Nov 2006 10:52:00 +0100
From:	"Jesper Juhl" <jesper.juhl@...il.com>
To:	"Jens Axboe" <jens.axboe@...cle.com>
Cc:	"Linus Torvalds" <torvalds@...l.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...l.org>
Subject: Re: Simple script that locks up my box with recent kernels

On 24/11/06, Jens Axboe <jens.axboe@...cle.com> wrote:
> On Fri, Nov 24 2006, Jesper Juhl wrote:
> > On 24/11/06, Jens Axboe <jens.axboe@...cle.com> wrote:
> > >On Fri, Nov 24 2006, Jesper Juhl wrote:
> > >> > Does the box survive io intensive workloads?
> > >>
> > >> It seems to. It does get sluggish as hell when there is lots of disk I/O
> > >but
> > >> it seems to be able to survive.
> > >> I'll try some more, with some IO benchmarks + various other stuff to see
> > >> if I can get it to die that way.
> > >
> > >Just wondering if you have a marginal powersupply, perhaps.
> > >
> > It is a possibility, but I doubt it, since if I use a 2.6.17.x kernel
> > then things are rock solid and I can't cause a lockup even if I leave
> > my box building kernels in the background for days.
>
> Since it triggers fairly quickly, any chance that you could try and
> narrow it down to a specific version that breaks?
>
I already tried doing a git bisect, but I somehow messed it up
(probably by concluding that a bad kernel was good).
The problem is that *usually* triggers fairly quickly (within 1hr),
but sometimes it takes much longer to trigger, so it's hard to be 100%
sure that a kernel is actually good - except if I leave it running for
something like 24hrs for each step in the bisect. That is actually
something I plan to do, but finding the time for that is not easy.


-- 
Jesper Juhl <jesper.juhl@...il.com>
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