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Date: Wed, 16 Dec 2020 14:01:14 +0100 From: Frederic Weisbecker <frederic@...nel.org> To: "Paul E. McKenney" <paulmck@...nel.org> Cc: linux-kernel@...r.kernel.org Subject: Re: TREE01 rcutorture writer stalls? On Tue, Dec 15, 2020 at 09:04:07PM -0800, Paul E. McKenney wrote: > Hello, Frederic, > > Are you seeing rcutorture writer stalls? Please see attached for an > example from testing, search for "Call Trace". I am running an overnight > test, which should get me some idea of frequency. My thought is to run > on the same version, but without the rcutorture.nocbs_nthreads=0 and > rcutorture.nocbs_toggle=1000 kernel boot parameters. > > This sort of error can occur when grace periods are progressing, but > callback processing is not. Things do seem to recover. > > Other thoughts? Ok I'm trying to reproduce that. Thanks.
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