Messages in this thread | | | Date | Sat, 27 Oct 2007 00:37:37 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 0/3] x86: unify crash_32/64.c |
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On Fri, 26 Oct 2007, Hiroshi Shimamoto wrote:
Added Venki to CC
> > I'm now testing crash on 32bit, but there is an issue before > > applying the patches. My machine stopped at checking 'hlt' > > after kexec, showing below message. > > > > CPU: Intel(R) Xeon(TM) CPU 3.80GHz stepping 0a > > Checking 'hlt' instruction... > > > v2.6.23.1 works fine for 1st kernel. > > I'm investigating it.. > > I found that the following patch makes my machine stopped. > bfe0c1cc6456bba1f4e3cc1fe29c0ea578ac763a > x86: HPET force enable for ICH5 > > It means that after applied this patch, HPET is enabled > automatically on 1st kernel and after crash/kexec the 2nd > kernel stopped at checking 'hlt'. > > I also tested the latest kernel(2.6.24-rc1-gec3b67c1). > Boot parameter "nohpet" resolves this issue and kdump > works well on 32bit. > So I guess HPET affects this. > But I don't know why 64bit kernel with HPET is OK.
Hmm. Does the 64 bit code shutdown HPET and restore the IRQ routing to PIT and 32 bit is missing this ?
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