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From: syzbot <syzbot+c793a7eca38803212c61@syzkaller.appspotmail.com>
To: bp@alien8.de, dave.hansen@linux.intel.com,
	gregkh@linuxfoundation.org,  hpa@zytor.com,
	linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
	 marcello.bauer@9elements.com, mingo@redhat.com,
	stern@rowland.harvard.edu,  sylv@sylv.io,
	syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
	 x86@kernel.org
Subject: Re: [syzbot] [usb?] INFO: rcu detected stall in schedule_timeout (6)
Date: Thu, 16 May 2024 15:01:02 -0700	[thread overview]
Message-ID: <000000000000f8112e0618995e6e@google.com> (raw)
In-Reply-To: <000000000000051b2d06189716c3@google.com>

syzbot has bisected this issue to:

commit a7f3813e589fd8e2834720829a47b5eb914a9afe
Author: Marcello Sylvester Bauer <sylv@sylv.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@syzkaller.appspotmail.com
Fixes: a7f3813e589f ("usb: gadget: dummy_hcd: Switch to hrtimer transfer scheduler")

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

  reply	other threads:[~2024-05-16 22:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-16 19:17 [syzbot] [usb?] INFO: rcu detected stall in schedule_timeout (6) syzbot
2024-05-16 22:01 ` syzbot [this message]
2024-06-04 12:05   ` Marcello Sylvester Bauer
2024-06-04 14:20     ` Alan Stern
2024-06-24 10:25     ` Needed help: dummy_hcd: Fix stalls/inconsistent_lock_state due to hrtimer migration Marcello Sylvester Bauer
2024-06-24 13:19       ` Thomas Gleixner

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