From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E398617721 for ; Mon, 8 Jul 2024 10:56:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720436182; cv=none; b=L9BhJ3KxGSU3CJEL50hwjESo8ktCIjspXYuKFq0Cte83+EV83CK4llP/CsDOE9TrAIgT9NObqOU79OF9hKJAdbXp9nPMapN6vDpKrrAEYGmlUzfyr+n9TyQkTkIYyPNR/5kBsXwS0Lcmb22YBdMFkKm7LJpSdLs0kLGh0s0SWbE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720436182; c=relaxed/simple; bh=Of8J21b9uvvAl/AlOsz7foY2sVQhphQEiZNlnPV7gzY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=qdWY/q/pZ9T0MDSMOXn1DihkdxDzG2/Ujmflv8i5n4DmlhN0FmFk/cNFyY292ep/DbXUmIsPLMc/eqmqUtuywlEAJaFkhwR7PRdB//Fq+CtJIVrTiepOhia9KbTGw8r/ZZjsmj3l5xVU+TsLenzt/2Ff5CAlJ2TWTTKeT19hj5I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f70.google.com with SMTP id ca18e2360f4ac-7f95699cabcso173123539f.1 for ; Mon, 08 Jul 2024 03:56:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720436180; x=1721040980; h=content-transfer-encoding:to:from:subject:message-id:in-reply-to :date:mime-version:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Of8J21b9uvvAl/AlOsz7foY2sVQhphQEiZNlnPV7gzY=; b=s/zyMhCZ8ZztRCmqEDH6S6XyVGXSRVdT10lKI9NUW4nIkUqSNPNdHHQdCIkAYeEHBX cCgrHem3K7i+zH3cZlS3Tbh61ECijxmUNGF1dVrBCMpgf13mo7rPPHEKp0fkdkinaYce oU5BA4dW62GgIA98R5R3QMAJilg+WqCjbY49EPaD6wfPFcni/Y/UhHInSo2AjOzIrze/ QXqfVjk8OCdA1TpNKelptE3USiFutABLsLiE8sU5h41c3P38MsAgCNTbmxTmnMOtqNm4 gMYU1Y98AwWlcbJ+X94UkRN7GR00fVpDiesB/aYJ+/9Xfgz80FKCSu6yMuZL+5WMQaFq ts3A== X-Gm-Message-State: AOJu0Yysqfalbayf3gyqW+BHE547GrlyzEd3zQ3Rn5ImrGMkV4uwDBYO Yly9L+DLHxUcq7CEMkritpfOZqrvLiPHNC5N4SMvX8bdXiDSP+zACIuAVSc7w7XHRTr7rMmgJqa gu0JKa+4RC3bCt0vUzOuQn0IB+83tn9MFuR1pALReq+kiFFrmSFjO5jw= X-Google-Smtp-Source: AGHT+IFfZl6F5msn0uL8iDuln4iUWl52gS+44Qf25qrxYmNe4N3zH+FZ3HZOiIy0MYaOYxL3cBfAYsdcf5+nWVIu43Vbr1zgUMb3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:35aa:b0:4c0:9a3e:c26e with SMTP id 8926c6da1cb9f-4c09a3ed314mr223597173.0.1720436180090; Mon, 08 Jul 2024 03:56:20 -0700 (PDT) Date: Mon, 08 Jul 2024 03:56:20 -0700 In-Reply-To: <000000000000051b2d06189716c3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005f9210061cba438f@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.git test_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