Re: [syzbot] [block?] [usb?] INFO: rcu detected stall in aoecmd_cfg (2)

From: syzbot
Date: Sun May 12 2024 - 07:05:14 EST


syzbot has bisected this issue to:

commit a7f3813e589fd8e2834720829a47b5eb914a9afe
Author: Marcello Sylvester Bauer <sylv@xxxxxxx>
Date: Thu Apr 11 14:51:28 2024 +0000

usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12415cd0980000
start commit: 9221b2819b8a Add linux-next specific files for 20240503
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=11415cd0980000
console output: https://syzkaller.appspot.com/x/log.txt?x=16415cd0980000
kernel config: https://syzkaller.appspot.com/x/.config?x=8ab537f51a6a0d98
dashboard link: https://syzkaller.appspot.com/bug?extid=1e6e0b916b211bee1bd6
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15661898980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=161a5d1f180000

Reported-by: syzbot+1e6e0b916b211bee1bd6@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: a7f3813e589f ("usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler")

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