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Fri, 23 Jan 2026 06:26:24 -0800 (PST) Date: Fri, 23 Jan 2026 06:26:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69738510.050a0220.1ad174.033b.GAE@google.com> From: syzbot To: chao@kernel.org, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com X-Headers-End: 1vjI7P-0007AN-2h Subject: [f2fs-dev] [syzbot] [f2fs?] INFO: task hung in f2fs_write_inode X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Hello, syzbot found the following issue on: HEAD commit: 59e4d31a0470 Merge branches 'for-next/core' and 'for-next/.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=11b73b9a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8a8594efdc14f07a dashboard link: https://syzkaller.appspot.com/bug?extid=ffb43ecff88cb2a47dd3 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13c8cb9a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e88d22580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/746a1d5c4188/disk-59e4d31a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2eefade79f10/vmlinux-59e4d31a.xz kernel image: https://storage.googleapis.com/syzbot-assets/140624ef24ed/Image-59e4d31a.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/e4b7b1d47128/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=16b73b9a580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ffb43ecff88cb2a47dd3@syzkaller.appspotmail.com INFO: task kworker/u8:14:4087 blocked for more than 143 seconds. Call trace: f2fs_write_inode+0x3b0/0x68c fs/f2fs/inode.c:826 kthread+0x5fc/0x75c kernel/kthread.c:463 #0: ffff0000c1ff2948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 3 locks held by syz-executor142/6594: --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f80.google.com (mail-oo1-f80.google.com [209.85.161.80]) (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 805F032695C for ; Fri, 23 Jan 2026 14:26:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769178387; cv=none; b=CrhxcwM+H903ipTgSLRDxYtohs28RUF2Y8vV4Fzu0FD4urF/55+vsTvpb8mFAzd2q0k9pO28cS9Lhen175gPhU1iNXZwuPMWtPLx/BVauXKA08DliTDJYDZyj8+LfJ7RbTbXDt7ryyUUt/RurcTmZ5EOhBjYmkLzgBRK7FwIsRA= ARC-Message-Signature:i=1; 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Fri, 23 Jan 2026 06:26:24 -0800 (PST) Date: Fri, 23 Jan 2026 06:26:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69738510.050a0220.1ad174.033b.GAE@google.com> Subject: [syzbot] [f2fs?] INFO: task hung in f2fs_write_inode From: syzbot To: chao@kernel.org, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 59e4d31a0470 Merge branches 'for-next/core' and 'for-next/.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=11b73b9a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8a8594efdc14f07a dashboard link: https://syzkaller.appspot.com/bug?extid=ffb43ecff88cb2a47dd3 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13c8cb9a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e88d22580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/746a1d5c4188/disk-59e4d31a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2eefade79f10/vmlinux-59e4d31a.xz kernel image: https://storage.googleapis.com/syzbot-assets/140624ef24ed/Image-59e4d31a.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/e4b7b1d47128/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=16b73b9a580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ffb43ecff88cb2a47dd3@syzkaller.appspotmail.com INFO: task kworker/u8:14:4087 blocked for more than 143 seconds. Call trace: f2fs_write_inode+0x3b0/0x68c fs/f2fs/inode.c:826 kthread+0x5fc/0x75c kernel/kthread.c:463 #0: ffff0000c1ff2948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 3 locks held by syz-executor142/6594: --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup