Messages in this thread | | | Subject | Re: HPET regression in 2.6.26 versus 2.6.25 | From | Peter Zijlstra <> | Date | Tue, 05 Aug 2008 15:58:53 +0200 |
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[ Let's CC people, so that they'll at least see this mail when they're back from holidays ]
On Mon, 2008-08-04 at 16:57 -0700, David Witbrodt wrote: > 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
Since you have that git tree, could you try to see if the latest -git still has this problem?
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