Messages in this thread | | | Date | Wed, 16 Mar 2011 19:25:06 -0700 | From | "Paul E. McKenney" <> | Subject | Re: rcu_sched_state detected stall on CPU issue |
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On Thu, Mar 17, 2011 at 09:18:19AM +0900, KOSAKI Motohiro wrote: > Hi Paul, > > > Hello! > > > > It looks like Preeti found a way to loop in kswapd with preemption > > disabled, please see attached dmesg. This is using 2.6.35-45.fc14. > > > > Any thoughts or recent patches that might help? > > We fixed a kswapd infinite loop issue when memory is fragmented at 2.6.38. > Could you please try following commits? (all are mm/vmscan.c change) > > commit dc83edd941f412e938841b4989be24aa288a1aa6 > commit 355b09c47a0cbb73b3e65a57c03f157f2e7ddb0b > commit 4d40502ea580c35414a1466d86f96484910ebaec > commit 0abdee2bd4118366c62349a304f81537be69af33 > commit 1741c87757448cedd03224f01586504f9256415d > commit 9950474883e027e6e728cbcff25f7f2bf0c96530
Thank you, Kosaki!
> And, your attached file and your quoted mail don't have /proc/zoneinfo > information. then I have no way to confirn his environment is heavy > fragmented or not. If possible, could you please get /proc/zoneinfo > info?
Preeti, could you please send this info and try out the above patches?
Thanx, Paul
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