Re: [syzbot] [kernel?] WARNING in update_rq_clock (2)

[Aleksandr Nogikh]

Hi Thomas,

Thanks for reaching out!

On Fri, Jul 3, 2026 at 11:39 AM 'Thomas Gleixner' via syzkaller-bugs
<syzkaller-bugs@xxxxxxxxxxxxxxxx> wrote:
>
> On Thu, Jul 02 2026 at 17:38, syzbot wrote:
>
> CC+: Peter
>
> Dear syzbot folks. The selection of people you CC on your reports is
> annoyingly random. The splat clearly says:
>
> > WARNING: kernel/sched/sched.h:1641 at lockdep_assert_rq_held kernel/sched/sched.h:1641 [inline], CPU#0: syz.4.1183/11558
>
> So why not picking that up and:
>
> # scripts/get_maintainer.pl -f kernel/sched/sched.h

In this case, syzkaller skipped `kernel/sched/sched.h` as being too
generic (usually the problems are not there) and focused on
`arch/x86/kernel/fpu/core.c` instead, for which get_maintianer.pl
gives exactly the Cc list we got.

I've filed https://github.com/google/syzkaller/issues/7563 to discuss
what we can change here.

-- 
Aleksandr

>
> Ingo Molnar <mingo@xxxxxxxxxx> (maintainer:SCHEDULER)
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> (maintainer:SCHEDULER)
> Juri Lelli <juri.lelli@xxxxxxxxxx> (maintainer:SCHEDULER)
> Vincent Guittot <vincent.guittot@xxxxxxxxxx> (maintainer:SCHEDULER)
> Dietmar Eggemann <dietmar.eggemann@xxxxxxx> (reviewer:SCHEDULER)
> Steven Rostedt <rostedt@xxxxxxxxxxx> (reviewer:SCHEDULER)
> Ben Segall <bsegall@xxxxxxxxxx> (reviewer:SCHEDULER)
> Mel Gorman <mgorman@xxxxxxx> (reviewer:SCHEDULER)
> Valentin Schneider <vschneid@xxxxxxxxxx> (reviewer:SCHEDULER)
> K Prateek Nayak <kprateek.nayak@xxxxxxx> (reviewer:SCHEDULER)
> linux-kernel@xxxxxxxxxxxxxxx (open list:SCHEDULER)
>
>
> ?
>
> Leaving the report untrimmed for Peter.
>
> > syzbot found the following issue on:
> >
> > HEAD commit:    8b69c0475871 Merge tag 'input-for-v7.2-rc0-2' of git://git..
> > git tree:       upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=1196f4ea580000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=eb3cf873145f98c4
> > dashboard link: https://syzkaller.appspot.com/bug?extid=681e729b2cf0d4860042
> > compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
> >
> > Unfortunately, I don't have any reproducer for this issue yet.
> >