lkml.org 
[lkml]   [2013]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [BUG 3.12.rc4] Oops: unable to handle kernel paging request during shutdown
On 15.10.2013 02:59, Paul E. McKenney wrote:
> On Mon, Oct 14, 2013 at 04:16:03PM -0700, Paul E. McKenney wrote:
>> On Mon, Oct 14, 2013 at 11:52:48PM +0200, Knut Petersen wrote:
>>> On 14.10.2013 23:28, Paul E. McKenney wrote:
>>>> On Mon, Oct 14, 2013 at 10:53:03AM -0700, Linus Torvalds wrote:

>>>> I´ll run some tests with those debug parameters tomorrow.
>>>> Any chance of a look at the .config file?
>>> Attached.
>> Thank you! Looks like a pretty standard RCU setup. Just to make sure
>> I saw it correctly -- you are running NR_CPUS=1? Getting races to happen
>> in that mode is truly impressive!

Yes. The AOpen i915GMm-hfs is a desktop board with mobile chipset for one Pentium-M.
As a musician I need an absolutely silent system, and the low power consumption of that
technology is a nice add-on.
> Ah, thing... When running with only one CPU, both of synchronize_rcu_bh()
> and synchronize_sched() become essentially no-ops. Anything that expected
> them to actually sleep would then break.
>
> However, because you are running with CONFIG_PREEMPT=y, synchronize_rcu()
> will still block.
>
> Thanx, Paul
>

--
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: 2013-10-15 10:41    [W:0.172 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site