syzbot has bisected this issue to:
commit 8850cb663b5cda04d33f9cfbc38889d73d3c8e24
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Tue Sep 21 20:16:02 2021 +0000
sched: Simplify wake_up_*idle*()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=166a8c90b00000
start commit: 60e8840126bd Add linux-next specific files for 20211018
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=156a8c90b00000
console output: https://syzkaller.appspot.com/x/log.txt?x=116a8c90b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=4bd44cafcda7632e
dashboard link: https://syzkaller.appspot.com/bug?extid=4b71bb3365e7d5228913
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11eccf58b00000
Reported-by: syzbot+4b71bb3365e7d5228913@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 8850cb663b5c ("sched: Simplify wake_up_*idle*()")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
