Messages in this thread | | | Date | Tue, 12 Aug 2014 09:08:40 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH tip/core/rcu 1/2] rcu: Parallelize and economize NOCB kthread wakeups |
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On Tue, Aug 12, 2014 at 10:57:26AM +0530, Amit Shah wrote: > On (Mon) 11 Aug 2014 [13:34:21], Paul E. McKenney wrote: > > On Tue, Aug 12, 2014 at 01:48:45AM +0530, Amit Shah wrote:
[ . . . ]
> > > > In addition "sendkey alt-sysrq-t" at the "(qemu)" prompt dumps all tasks' > > > > stacks, which would also likely be useful information. > > > > > > Nah, this doesn't work -- the guest's totally locked up. I need a way > > > to continuously dump buffers till the lockup happens, I suppose. > > > > That is a bit surprising. Is it possible that the system is OOMing > > quickly due to grace periods not proceeding? If so, maybe giving the > > VM more memory would help. > > I bumped it up to 1G and then 2G, same result.
OK. I am then back at making the system dump core.
Thanx, Paul
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