From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 01C941CAB8 for ; Sun, 12 May 2024 11:05:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715511905; cv=none; b=Omj97Go0BPkzT8foyP/HRs4DIkH0a5KXPagTnGf6cdiLHp2z54bJil+NBg6K/TNLHVGtZRvGWuQqTekeWNzM0GO7IzHvUR6vEUSNRY8tviWNC5buD7OIEx36kCRRUC25ZBo+eYaEnVXBaj/Z5TD6rL+heLrizg/GlUnVLnujVh4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715511905; c=relaxed/simple; bh=jYig5DgAOcqBHrE0/9+1Mu2F6/2OlimOLVdZNsXTNhY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=pW+uoA3KRcyZ3LzVcymzNbXKxFk3SJskFdFwzYvlLtmXilLzidOzAQCkB3G10WCGiLHNrjJPrF7LbOMpZitgmBaONSJtQ0AJUmF55+hisjw41H6/Q9YJ27YIYGHKs9BcCsEQaVnU84gwlskW/LGxVw1PAHozL4zU1E1w7xpqoEA= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-36b2eee85edso48531385ab.0 for ; Sun, 12 May 2024 04:05:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715511903; x=1716116703; h=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=1AzMq+CA5JeAen4yA3wRsZUlx1QJVPYX6wCmrtep2Os=; b=quXwpXZcChmgqt3DVuJn1mSX4TAhPaAca1KxmPrOgcjVH7rTzjJE4fquHbRxYOBxX9 476O193bsY7OJdxbKfFa8UXzzIKVvaSaYJ1RdYbp8n7hCjLCMUBKSVBgDXXcsjbhOvMQ j5MVLHUoqjvPVoLnmfKSFxEb99CnIFMiYeAyLQKor9+/duKmt/FQx778XBU/5kD9r69q 9lSyY8G+0RopM0+dto7/kGYtNu6MNtPEHPkEiA4by9lO78zCNcYV1ot2yFXrvtOVtqq+ Vy3YQEpKA18UHJ7FO+UT2uDOeJpTu7BMMnb8oOZEOql8aC3Az3voXBqE/FkhaDA6A6U1 Lzkg== X-Forwarded-Encrypted: i=1; AJvYcCUUsFSu54mvdDDUx41auK0BS2u1YN+0MrC9jXVqB2UUDUCKp7Uy6QNnFTmOZZxs62Ag01X27gXQDnO7IemM+GAx47LHzxtz8cp2hUo= X-Gm-Message-State: AOJu0YxOIuZPn/mindYWfel6D8JIQTc7jKirEly8ur8GYrAAGNs4ry0X N2dL8sBeSOBYKFCNPEgHSPYKB70Oz9OHb2bXKLWjHF2nL4qpo15/xG24Xscw68cL6OLREiPk52i J6wI3sWVQ6p9GVDe4bHCJhUX+Dp44KQwGwFlk29oa7AUhBljZHLJqeNU= X-Google-Smtp-Source: AGHT+IGNjREMwQGltAFiKnu2rdMUsKA/x7WehSP+HZJj5UV4BdfJukZuMBf6IpPhE0j3eAVYtBhejK+D6fNrUTJJVVE3zNpl+ZoP Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:d152:0:b0:36c:4457:ca5d with SMTP id e9e14a558f8ab-36cc14f785bmr944215ab.5.1715511903210; Sun, 12 May 2024 04:05:03 -0700 (PDT) Date: Sun, 12 May 2024 04:05:03 -0700 In-Reply-To: <0000000000008de5720617f64aae@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009966ab06183fbd83@google.com> Subject: Re: [syzbot] [block?] [usb?] INFO: rcu detected stall in aoecmd_cfg (2) From: syzbot To: axboe@kernel.dk, gregkh@linuxfoundation.org, hdanton@sina.com, justin@coraid.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, loberman@redhat.com, marcello.bauer@9elements.com, rafael@kernel.org, stern@rowland.harvard.edu, sylv@sylv.io, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit a7f3813e589fd8e2834720829a47b5eb914a9afe Author: Marcello Sylvester Bauer 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@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