From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 0B1671FB6 for ; Wed, 20 Dec 2023 00:30:03 +0000 (UTC) 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-f71.google.com with SMTP id ca18e2360f4ac-7b7fa6cba91so86511339f.1 for ; Tue, 19 Dec 2023 16:30:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703032203; x=1703637003; 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=IB4yfa/gkpOsXJDXGczqw9b/EB2d2YrDYws3LKmd3wU=; b=OJWEGmEdsZ1CACm7vMLv01kykQSxyEAHeAJc4nItvneTuOKJ03FV265q6HjeHRDsZe /q20QUjHJ1MpbL6GoZWM+8BnY18ZRerLdpJElIPFEeDm8pawag9GBW7Vdkwv2GQAiy9+ b08db3T9v80+DrJe4Yqu0RwZQh0Cw9nk8U+kvovm0g23E24ZUOs9RtEK7SteXbp9z9bU JgvUT++tlfsesup0h+E+JnOtqBMjiw6KTVeojjrdPYu+MKr24Z+4AbvSNdx/QbSqNJu0 C7kK/p3VP/oTuWgKRkYPQbDOC5cvNJKBCuZIEyAZgWWr7vRfOVcUBlNm3kEK3GOX3VCZ ENKQ== X-Gm-Message-State: AOJu0YxdmYSKYP485nPQGiSnCIPndA9nJ508nkrxEZlZD3e+la3DdMBM ZeqOsxBu5hO9LmO4Y7m3jB/P48vqielQO5mXafHrezIYXSlj X-Google-Smtp-Source: AGHT+IGpzlanNXyUXLz8ztZUudG8cCibZeW7FsWjkwVgcLUP+171LFpbOUNnK6UdyNs02nKqZOrH9gU5Qf47KS6Z25X3dvBwYVfr Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d93:b0:35f:a015:322a with SMTP id h19-20020a056e021d9300b0035fa015322amr999281ila.5.1703032203274; Tue, 19 Dec 2023 16:30:03 -0800 (PST) Date: Tue, 19 Dec 2023 16:30:03 -0800 In-Reply-To: <000000000000e171200600d6d8bd@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000847160060ce61580@google.com> Subject: Re: [syzbot] [overlayfs?] possible deadlock in seq_read_iter (2) From: syzbot To: amir73il@gmail.com, axboe@kernel.dk, hch@lst.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, miklos@szeredi.hu, rafael@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 1e8c813b083c4122dfeaa5c3b11028331026e85d Author: Christoph Hellwig Date: Wed May 31 12:55:32 2023 +0000 PM: hibernate: don't use early_lookup_bdev in resume_store bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14b15592e80000 start commit: 2cf4f94d8e86 Merge tag 'scsi-fixes' of git://git.kernel.or.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16b15592e80000 console output: https://syzkaller.appspot.com/x/log.txt?x=12b15592e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=e5751b3a2226135d dashboard link: https://syzkaller.appspot.com/bug?extid=da4f9f61f96525c62cc7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=176a4f49e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=154aa8d6e80000 Reported-by: syzbot+da4f9f61f96525c62cc7@syzkaller.appspotmail.com Fixes: 1e8c813b083c ("PM: hibernate: don't use early_lookup_bdev in resume_store") For information about bisection process see: https://goo.gl/tpsmEJ#bisection