Messages in this thread | | | Date | Tue, 15 Oct 2013 10:06:40 +0200 | From | Knut Petersen <> | Subject | Re: [BUG 3.12.rc4] Oops: unable to handle kernel paging request during shutdown |
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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 >
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