Re: [PATCH] x86: fix init_memory_mapping over boundary v2

From: Ingo Molnar
Date: Sat Jun 28 2008 - 03:22:29 EST



* Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:

> On Sat, Jun 28, 2008 at 12:02 AM, Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> > * Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> >> * Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:
> >>
> >> > some end boundary is only page alignment, instead of 2M alignment, so
> >> > call ker_phycial_mapping_init three times. then don't overmap above
> >> > the max_low_pfn
> >>
> >> applied to tip/x86/unify-setup, thanks Yinghai.
> >
> > -tip testing found a 32-bit spontaneous reboot during bootup, with this
> > config:
> >
> > http://redhat.com/~mingo/misc/config-Sat_Jun_28_08_43_52_CEST_2008.bad
> >
> > no serial log produced at all.
> >
> > doing the reverts below fixes the problem.
> >
> > Ingo
> >
> > commit 4ae56755fa1e1bd1500c97b5bf82d6519a261ffd
> > Author: Ingo Molnar <mingo@xxxxxxx>
> > Date: Sat Jun 28 08:59:44 2008 +0200
> >
> > Revert "x86: let setup_arch call init_apic_mappings for 32bit"
> >
> > This reverts commit 7fce3bb20100e5b6c42ad66c495e6348522bfd37.
> >
> > commit 2703b959fc588f1b77290272f60bcf0bd8f6e557
> > Author: Ingo Molnar <mingo@xxxxxxx>
> > Date: Sat Jun 28 08:59:39 2008 +0200
> >
> > Revert "x86: fix init_memory_mapping over boundary v2"
> >
> > This reverts commit 7a41ed2c98f860da38a944d8de5b29e6ec39cf76.
> >
> the system with 512M ?

no, other 32-bit testsystems: 1GB RAM, 2GB RAM, etc.

Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/