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Tue, 25 Jun 2024 02:02:42 -0700 (PDT) Date: Tue, 25 Jun 2024 02:02:42 -0700 In-Reply-To: <000000000000051b2d06189716c3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001640ac061bb3296a@google.com> Subject: Re: [syzbot] Re: [syzbot] [usb?] INFO: rcu detected stall in schedule_timeout (6) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [usb?] INFO: rcu detected stall in schedule_timeout (= 6) Author: marcello.bauer@9elements.com #syz test: https://github.com/9elements/linux patch_dummy_hcd_hrtimer_fix On Thu, 2024-05-16 at 15:01 -0700, syzbot wrote: > syzbot has bisected this issue to: >=20 > commit a7f3813e589fd8e2834720829a47b5eb914a9afe > Author: Marcello Sylvester Bauer > Date:=C2=A0=C2=A0 Thu Apr 11 14:51:28 2024 +0000 >=20 > =C2=A0=C2=A0=C2=A0 usb: gadget: dummy_hcd: Switch to hrtimer transfer sch= eduler >=20 > bisection log:=C2=A0 > https://syzkaller.appspot.com/x/bisect.txt?x=3D119318d0980000 > start commit:=C2=A0=C2=A0 75fa778d74b7 Add linux-next specific files for > 20240510 > git tree:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 linux-next > final oops:=C2=A0=C2=A0=C2=A0=C2=A0 > https://syzkaller.appspot.com/x/report.txt?x=3D139318d0980000 > console output: > https://syzkaller.appspot.com/x/log.txt?x=3D159318d0980000 > kernel config:=C2=A0 > https://syzkaller.appspot.com/x/.config?x=3Dccdd3ebd6715749a > dashboard link: > https://syzkaller.appspot.com/bug?extid=3Dc793a7eca38803212c61 > syz repro:=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 > https://syzkaller.appspot.com/x/repro.syz?x=3D16dcd598980000 > C reproducer:=C2=A0=C2=A0 > https://syzkaller.appspot.com/x/repro.c?x=3D151d9c78980000 >=20 > Reported-by: syzbot+c793a7eca38803212c61@syzkaller.appspotmail.com > Fixes: a7f3813e589f ("usb: gadget: dummy_hcd: Switch to hrtimer > transfer scheduler") >=20 > For information about bisection process see: > https://goo.gl/tpsmEJ#bisection