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Message-ID: <000000000000f8112e0618995e6e@google.com>
Date: Thu, 16 May 2024 15:01:02 -0700
From: syzbot <syzbot+c793a7eca38803212c61@...kaller.appspotmail.com>
To: bp@...en8.de, dave.hansen@...ux.intel.com, gregkh@...uxfoundation.org, 
	hpa@...or.com, linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org, 
	marcello.bauer@...ements.com, mingo@...hat.com, stern@...land.harvard.edu, 
	sylv@...v.io, syzkaller-bugs@...glegroups.com, tglx@...utronix.de, 
	x86@...nel.org
Subject: Re: [syzbot] [usb?] INFO: rcu detected stall in schedule_timeout (6)

syzbot has bisected this issue to:

commit a7f3813e589fd8e2834720829a47b5eb914a9afe
Author: Marcello Sylvester Bauer <sylv@...v.io>
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=119318d0980000
start commit:   75fa778d74b7 Add linux-next specific files for 20240510
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=139318d0980000
console output: https://syzkaller.appspot.com/x/log.txt?x=159318d0980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ccdd3ebd6715749a
dashboard link: https://syzkaller.appspot.com/bug?extid=c793a7eca38803212c61
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16dcd598980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=151d9c78980000

Reported-by: syzbot+c793a7eca38803212c61@...kaller.appspotmail.com
Fixes: a7f3813e589f ("usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler")

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

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