Re: [syzbot] INFO: rcu detected stall in hub_event

From: syzbot
Date: Sat Jul 30 2022 - 06:27:15 EST


syzbot has bisected this issue to:

commit 859bdc359567f5fa8e8dc780d7b5e53ea43d9ce9
Author: Mayank Rana <quic_mrana@xxxxxxxxxxx>
Date: Wed May 18 18:12:52 2022 +0000

usb: dwc3: core: Add error log when core soft reset failed

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=144812f2080000
start commit: 6e2c0490769e Merge tag 'drm-fixes-2022-07-29' of git://ano..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=164812f2080000
console output: https://syzkaller.appspot.com/x/log.txt?x=124812f2080000
kernel config: https://syzkaller.appspot.com/x/.config?x=26034e6fe0075dad
dashboard link: https://syzkaller.appspot.com/bug?extid=ec5f884c4a135aa0dbb9
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119bc436080000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16c3c0f2080000

Reported-by: syzbot+ec5f884c4a135aa0dbb9@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 859bdc359567 ("usb: dwc3: core: Add error log when core soft reset failed")

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