> Hello,
>
> [Please CC me if you reply, for I am not subscribed to LKML.]
>
> This is my first time posting to LKML.
>
> I am a Debian user. The sources for 2.6.26 recently became available
> in the Debian unstable repositories. Trying them out by building
> custom kernels (think 'make oldconfig'), I found that one machine
> worked while another froze early in boot. No oops, no error msg of
> any kind, just a hard freeze without even Magic SysRq working!
>
> I suspected a dumb config error on my part, but found that the Debian
> stock kernel exhibited the same problem. So I filed a bug report in
> the Debian BTS:
>
>
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=493479
>
> There is much info about my hardware and configs there, but I can
> repost them here if that is helpful. The machine that works with
> 2.6.26 has a Gigabyte GA-M59SLI-S5 mboard; the broken machine has an
> ECS AMD690GM-M2 mboard.
>
> After much experimenting with various configs and rebuilds, I was
> finally able to discover that a kernel boot parameter,
> "hpet=disabled", allowed me to boot on the troublesome machine.
> Both custom and Debian stock kernels of version 2.6.25 (most recently
> based on 2.6.25.10) work fine on this machine, no problem with HPET.
>
> A member of the Debian kernel team (Bastian Blank) tried to help, but
> ended up suggesting bisecting using 'git'. I am not (yet) a developer
> so I was not really thinking of getting that deeply involved, but I
> spent so much time trying to track this problem on Saturday night and
> all day Sunday, that I decided to give it a try!
>
> Starting with Linus' instructions here,
>
http://lkml.org/lkml/2007/7/10/248
>
> I ran:
> git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
>
> and:
> git checkout v2.6.25
