Re: [BUG] NOHZ tick-stop error: local softirq work is pending

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On Sun, Sep 10, 2023 at 10:25:43PM +0200, Frederic Weisbecker wrote:
> Le Sun, Sep 10, 2023 at 03:21:33AM -0700, Paul E. McKenney a écrit :
> > On Sat, Sep 09, 2023 at 10:28:36PM -0400, Joel Fernandes wrote:
> > > Hi Paul, Frederic, ever since this recent patch got merged into all
> > > recent stables:
> > > https://lore.kernel.org/all/20230818200757.1808398-1-paul.gortmaker@xxxxxxxxxxxxx/
> > >  ..
> > > 
> > > .. I am seeing this happen a lot now causing rcutorture failures:
> > > "NOHZ tick-stop error: local softirq work is pending"
> > > 
> > > It looks like the "tick-stop error" as local_bh_blocked always returns
> > > false on !PREEMPT_RT, so that patch itself seems correct.
> > > 
> > > However, it appears the string in console-badness.sh is different:
> > > 
> > > console-badness.sh:grep -v 'NOHZ tick-stop error: Non-RCU local
> > > softirq work is pending, handler'
> > > 
> > > So the string in the script needs an update?
> > 
> > Looks like it, though I believe that there is a fix in the offing,
> > at which point that "grep -v" should just be removed.  Depending on
> > timing, of course.
> 
> Yep I have a pending fix for that, will post soonish. The grep will still
> make sense afterward though.

So I do nothing?  I can do that!  ;-)

							Thanx, Paul



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