Re: [PATCH 0 of 4] x86: some more patches

Andi Kleen
2008-01-16T00:44:45Z

On Wednesday 16 January 2008 00:28:23 Jeremy Fitzhardinge wrote:
> Ingo Molnar wrote:
> > unfortunately they dont solve it:
> >
> > [ 92.042586] Freeing unused kernel memory: 328k freed
> > [ 92.091838] khelper used greatest stack depth: 6244 bytes left
> > [ 92.281738] init[1]: segfault at 00000004 ip 49471cbb sp bff8dbb0 error 4
> > [ 92.288761] init[1]: segfault at 00000004 ip 49471cbb sp bff8dbb0 error 4
> > [ 92.295763] init[1]: segfault at 00000004 ip 49471cbb sp bff8dbb0 error 4
> > [...]
> > [ 97.312484] printk: 611046 messages suppressed.
> >
> > 32-bit, PAE and RAM above 4GB seems to be enough to trigger that bug.
> >
>
> Bum. We established that once you fix the accessors+sign extension bug,
> there's another bug somewhere later on in the series. Any chance you
> could move "x86/pgtable: fix constant sign extension problem" to be just
> after "x86/pgtable: unify pagetable accessors" and bisect the following
> patches?

Bisecting is somewhat difficult because there seem to be quite a lot of problems
in the current git-x86 stream. I found that Jan's ioremap fix also
causes silent hangs here during earlier bisecting (not sure why)

-Andi