From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77B40C71144 for ; Fri, 18 Aug 2023 13:11:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377036AbjHRNLF (ORCPT ); Fri, 18 Aug 2023 09:11:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377055AbjHRNKr (ORCPT ); Fri, 18 Aug 2023 09:10:47 -0400 Received: from mail-pl1-f198.google.com (mail-pl1-f198.google.com [209.85.214.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 344182D50 for ; Fri, 18 Aug 2023 06:10:42 -0700 (PDT) Received: by mail-pl1-f198.google.com with SMTP id d9443c01a7336-1bf24089e4eso13753095ad.1 for ; Fri, 18 Aug 2023 06:10:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692364241; x=1692969041; 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=sIkwbNN9kL4K3EmOVENi42yRk0RdTpQaFB+jp7VFpcY=; b=XTbQ8o/NDroUoVqA0TaPFaeWI5klUG1fq3TLn+0ou8MQOPtwRurHHN7sYazrgSJIbT too952/lwwc6HmYQQw8QSH6KiRF0zOfSN01sltX90UTOLK47jG74/RpLDD6SHc1St3z+ dRi3ly9Slg5ShaEpKs5SlGpeNp1L+RB4UYqpcqFDZ7q5+CAEPhJ/1GOhq3uwmVkuKGA6 MUnWm/yadGkZvXcpsEj7SqxKwNNpic5DSOJzh3xVimCBFcu3rxsIp4NSHfpX6qOyMdtf ggLsy+GUPUFBHh/I/0TgGTJUgDyb8L+QslroAVyLn4FOtvzSxA8p4P1e7e7QLPqBMfB8 KfOA== X-Gm-Message-State: AOJu0YwvAPUPpjKdDKhi2rHFZv5rUclG2SkrcW6UljIfz2WOT8ZtNhEt 5TjErQ58pmoS/zBt0o1dECfVY5FKoFL2DlAAK7ZEDWfLQ3DC X-Google-Smtp-Source: AGHT+IGpCXUIc9w+uvEXJYohpoa0yAG32ipeDyRzs6JO1gwVuVP5xEoJNHaWqGpnCqxtXCNeBWPfHWCROLgsoQItBYkHZ3P2CVI9 MIME-Version: 1.0 X-Received: by 2002:a17:902:f353:b0:1b5:147f:d8d1 with SMTP id q19-20020a170902f35300b001b5147fd8d1mr746652ple.3.1692364241770; Fri, 18 Aug 2023 06:10:41 -0700 (PDT) Date: Fri, 18 Aug 2023 06:10:41 -0700 In-Reply-To: <000000000000f59fa505fe48748f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000761f5f0603324129@google.com> Subject: Re: [syzbot] [ext4?] INFO: task hung in __writeback_inodes_sb_nr (6) From: syzbot To: adilger.kernel@dilger.ca, linkinjeon@kernel.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, quic_pkondeti@quicinc.com, rafael.j.wysocki@intel.com, sj1557.seo@samsung.com, syzkaller-bugs@googlegroups.com, tytso@mit.edu, wendy.wang@intel.com, yu.c.chen@intel.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org syzbot has bisected this issue to: commit 5904de0d735bbb3b4afe9375c5b4f9748f882945 Author: Chen Yu Date: Fri Apr 14 12:10:42 2023 +0000 PM: hibernate: Do not get block device exclusively in test_resume mode bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1275be4ba80000 start commit: 4853c74bd7ab Merge tag 'parisc-for-6.5-rc7' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1175be4ba80000 console output: https://syzkaller.appspot.com/x/log.txt?x=1675be4ba80000 kernel config: https://syzkaller.appspot.com/x/.config?x=aa796b6080b04102 dashboard link: https://syzkaller.appspot.com/bug?extid=38d04642cea49f3a3d2e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=171242cfa80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17934703a80000 Reported-by: syzbot+38d04642cea49f3a3d2e@syzkaller.appspotmail.com Fixes: 5904de0d735b ("PM: hibernate: Do not get block device exclusively in test_resume mode") For information about bisection process see: https://goo.gl/tpsmEJ#bisection