Re: [syzbot] [mm?] INFO: rcu detected stall in sys_pipe2 (2)
From: syzbot
Date: Fri Dec 26 2025 - 11:43:14 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=16c6eb92580000
start commit: 9268abe611b0 Merge branch 'net-lan969x-add-rgmii-support'
git tree: net-next
kernel config: https://syzkaller.appspot.com/x/.config?x=b087c24b921cdc16
dashboard link: https://syzkaller.appspot.com/bug?extid=693a483dd6ac06c62b09
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e7c2f8580000
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