Re: [PATCH][5.10, 5.15, 6.1][0/1] hrtimer: Ignore slack time for RT tasks

"MOESSBAUER, Felix" <[email protected]> Mon, 19 Feb 2024 08:04:21 +0000
Newsgroups org.kernel.vger.stable-rt
Message-ID <[email protected]>
On Fri, 2024-02-16 at 18:11 +0100, Felix Moessbauer wrote:
> This suggests a fix from 6.3 for stable that fixes a nasty bug in the
> timing behavior of periodic RT tasks w.r.t timerslack_ns. While the
> documentation clearly states that the slack time is ignored for RT
> tasks,
> this is not the case for the hrtimer code. This patch fixes the issue
> and
> applies to all stable kernels.

Hi, actually this is not an rt-stable but a stable topic, as this code
is not PREEMPT_RT specific. I'll resend the patch to the stable ML.

Sorry for the noise.

Felix

> 
> Best regards,
> Felix Moessbauer
> Siemens AG
> 
> Davidlohr Bueso (1):
>   hrtimer: Ignore slack time for RT tasks in
> schedule_hrtimeout_range()
> 
>  kernel/time/hrtimer.c | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
> 

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