Re: [syzbot] [kernel?] INFO: task hung in worker_thread (5)

From: syzbot
Date: Fri May 16 2025 - 09:12:14 EST


syzbot suspects this issue was fixed by commit:

commit 66951e4860d3c688bfa550ea4a19635b57e00eca
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Mon Jan 13 12:50:11 2025 +0000

sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=100696f4580000
start commit: aa486552a110 Merge tag 'memblock-v6.12-rc1' of git://git.k..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=6c71bad3e6ab6955
dashboard link: https://syzkaller.appspot.com/bug?extid=c27cd2da6c2dc003b4a1
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12afcaa9980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10edb627980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE

For information about bisection process see: https://goo.gl/tpsmEJ#bisection