lkml.org 
[lkml]   [2011]   [Mar]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [GIT PULL] SLAB changes for v2.6.39-rc1

* Pekka Enberg <penberg@kernel.org> wrote:

> On Thu, Mar 24, 2011 at 4:41 PM, Christoph Lameter <cl@linux.com> wrote:
> > On Thu, 24 Mar 2011, Ingo Molnar wrote:
> >
> >> FYI, some sort of boot crash has snuck upstream in the last 24 hours:
> >>
> >>  BUG: unable to handle kernel paging request at ffff87ffc147e020
> >>  IP: [<ffffffff811aa762>] this_cpu_cmpxchg16b_emu+0x2/0x1c
> >
> > Hmmm.. This is the fallback code for the case that the processor does not
> > support cmpxchg16b.
>
> How does alternative_io() work? Does it require
> alternative_instructions() to be executed. If so, the fallback code
> won't be active when we enter kmem_cache_init(). Is there any reason
> check_bugs() is called so late during boot? Can we do something like
> the totally untested attached patch?

Does the config i sent you boot on your box? I think the bug is pretty generic
and should trigger on any box.

Thanks,

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

\
 
 \ /
  Last update: 2011-03-24 18:29    [W:0.094 / U:23.536 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site