linux-kernel - Re: [GIT PULL] timer fix

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Message-Id: <20190117155859.GE18351@osiris>
Date:   Thu, 17 Jan 2019 16:58:59 +0100
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Stefan Liebler <stli@...ux.ibm.com>
Subject: Re: [GIT PULL] timer fix

On Thu, Jan 17, 2019 at 10:51:02AM +0100, Ingo Molnar wrote:
> 
> * Heiko Carstens <heiko.carstens@...ibm.com> wrote:
> 
> > > -	if (timr->it_requeue_pending == info->si_sys_private) {
> > > +	if (timr->it_interval && timr->it_requeue_pending == info->si_sys_private) {
> > >  		timr->kclock->timer_rearm(timr);
> > 
> > FWIW, with this patch the vanilla glibc 2.28 self tests
> > rt/tst-cputimer1, rt/tst-cputimer2, and rt/tst-cputimer3
> > start to fail on s390:
...
> > I haven't looked any further into this, just reporting.. otherwise the
> > test systems seem to be healthy.
> 
> Could you please check whether the top commit in tip:timers/urgent fixes 
> it:
>   93ad0fc088c5: posix-cpu-timers: Unbreak timer rearming

Yes, the test cases don't fail anymore. Thanks!

A general question: since I reported this already last year, was the
bug report not usable? I understand that x-mas holidays were in
between, just wondering if new "glibc test case" fails are worth to be
reported like I did.