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 5EA531DD9A6 for ; Mon, 28 Oct 2024 15:49:30 +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=1730130572; cv=none; b=mm9g1UgxRzxBqwVFpBEzqjiAjpglOiJgg/LCunT4zjNFWKwCK61xrA5muCbEZhenIhub3Whn80PkN90yigv2ykh4De7KbgWUlcKf0M/mqLTbl5u3tFo0XevQk15j+IGIaKsutZhiezEqTut18mIUtCYEwVH+XxjBAVIMK0UdI9k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730130572; c=relaxed/simple; bh=LJoDKM8wjkvoLyCQBNn/d7JQttEMEDg9y5eEhYKUR5Q=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=KWJEwK8stiiLPnhqHAW8FuaEC/ngHxDIKBmcLy5A160VZbrwThFXc1guxx66iW3dqNiXrgrvSw+r5xwtZlNs253ScKR505uo+fIfERYoqO3nA8uepnKoLpyUpk9WOpldEdHKDGGNpInpd5tVjRHXQEhydtwXzBxAEDUZjev49fA= 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-3a3b7d1e8a0so38080735ab.0 for ; Mon, 28 Oct 2024 08:49:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730130569; x=1730735369; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/I2AMnc2H7mVtlHflwpGDiImhQbiuif+aPXizJLpQ8g=; b=kItYPa72lef0WPXCG3XnjWiUrpNSkYv7/fkZYw7aqbj46XuLz/x3vqu9wEgbtjGdON R/oEi6rbSzyRh0VXcOvpxeEoGE48+1POc52LRroM2PDJGR/p7Ac1WYzSfZXBmUFIyO7I rDfu93KnBRvva7cAwg+2cxqHVK10FjZKfnl7GA1NyU1TFEJtMzvrc95tu/wBh5VMq3G8 aEE0D6hZ4TyLAe+o5CZY9iTHtvXuobsWFIB8rh5/05KJvnNArOcTmpVTKWqzG14hQYMd eKfrWFTaWYEuFxX+h0ZxW6Atl3aUylryD62UJWdmDKOvMclrdEeH+6eXW52tOp/ao/9a OuhQ== X-Forwarded-Encrypted: i=1; AJvYcCV0k50A7+ms9YOOqc0I9fANZ8oyumjsBaNsLi8Xs1pmTENgOTlXMA1F6U5zQWw1DxH8ynpfWHdl6/oibcODag==@vger.kernel.org X-Gm-Message-State: AOJu0YzHQhmx0ayaFop28lKl2x9FBoXEPHC02pZ8CsPcUXP+TX6Sfs43 VplPs7OJj+Xs7F1mFUzzl1c1piPwnYLmMK3yy3qHEmvwzjFZFBDWaazh10+YXB9yEDMd834oHS3 ZfBk6LTRPQ11RNXaLHVrsBU1025ZPSUtwWg/Xo8vMO0LXYA0D58fHFmg= X-Google-Smtp-Source: AGHT+IH3/o0TupI98nogU7j/qQZ/nLvHyNkngezb9QE8qdaVud1eef0+C9APE1vWK8oaP4T4fks2+y4XuloxjEqCKG1lDkhafEIT Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1607:b0:3a3:67b1:3080 with SMTP id e9e14a558f8ab-3a4ed2d0bbbmr64137145ab.7.1730130569372; Mon, 28 Oct 2024 08:49:29 -0700 (PDT) Date: Mon, 28 Oct 2024 08:49:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <671fb289.050a0220.21b2f.0005.GAE@google.com> Subject: [syzbot] [bcachefs?] kernel BUG in bch2_btree_write_buffer_flush_locked From: syzbot To: kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, 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: 850925a8133c Merge tag '9p-for-6.12-rc5' of https://github.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=126f1230580000 kernel config: https://syzkaller.appspot.com/x/.config?x=309bb816d40abc28 dashboard link: https://syzkaller.appspot.com/bug?extid=4aff7bdaa254c1d9f008 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13ddaa87980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=166f1230580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-850925a8.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c831c931f29c/vmlinux-850925a8.xz kernel image: https://storage.googleapis.com/syzbot-assets/85f584e52a7f/bzImage-850925a8.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/c55dd771077b/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4aff7bdaa254c1d9f008@syzkaller.appspotmail.com bucket 0:127 gen 0 data type sb has wrong dirty_sectors: got 0, should be 256, fixing done bcachefs (loop0): going read-write bcachefs (loop0): journal_replay... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_write_buffer.c:147! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5308 Comm: syz-executor416 Not tainted 6.12.0-rc4-syzkaller-00261-g850925a8133c #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:wb_flush_one fs/bcachefs/btree_write_buffer.c:147 [inline] RIP: 0010:bch2_btree_write_buffer_flush_locked+0x5695/0x59f0 fs/bcachefs/btree_write_buffer.c:375 Code: 31 05 f5 ff e8 8c b8 70 fd 90 0f 0b e8 84 b8 70 fd 90 0f 0b e8 7c b8 70 fd 90 0f 0b e8 74 b8 70 fd 90 0f 0b e8 6c b8 70 fd 90 <0f> 0b e8 64 b8 70 fd 90 0f 0b e8 5c b8 70 fd 90 0f 0b e8 54 b8 70 RSP: 0018:ffffc9000d0de820 EFLAGS: 00010293 RAX: ffffffff84243204 RBX: 010000000000000b RCX: ffff88801f6ca440 RDX: 0000000000000000 RSI: 000000000000000b RDI: 010000000000000b RBP: ffffc9000d0dec70 R08: ffffffff8423f47f R09: 0000000000000000 R10: ffffc9000d0de300 R11: fffff52001a1bc61 R12: 0000000000000000 R13: ffff888044468000 R14: 000000000000000b R15: ffffc9000e600000 FS: 0000555592722380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe145a6dd8 CR3: 0000000042f12000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btree_write_buffer_flush_seq+0x1a43/0x1bc0 fs/bcachefs/btree_write_buffer.c:510 bch2_btree_write_buffer_journal_flush+0x4e/0x80 fs/bcachefs/btree_write_buffer.c:525 journal_flush_pins+0x5f7/0xb20 fs/bcachefs/journal_reclaim.c:565 journal_flush_done+0x8e/0x260 fs/bcachefs/journal_reclaim.c:819 bch2_journal_flush_pins+0x18a/0x3a0 fs/bcachefs/journal_reclaim.c:852 bch2_journal_flush_all_pins fs/bcachefs/journal_reclaim.h:76 [inline] bch2_journal_replay+0x270f/0x2a40 fs/bcachefs/recovery.c:384 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185 bch2_run_recovery_passes+0x387/0x870 fs/bcachefs/recovery_passes.c:232 bch2_fs_recovery+0x25cc/0x39c0 fs/bcachefs/recovery.c:862 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe1770828fa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdda0a8558 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffdda0a8570 RCX: 00007fe1770828fa RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00007ffdda0a8570 RBP: 0000000000000004 R08: 00007ffdda0a85b0 R09: 0000000000005927 R10: 0000000000800000 R11: 0000000000000282 R12: 0000000000800000 R13: 00007ffdda0a85b0 R14: 0000000000000003 R15: 0000000001000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:wb_flush_one fs/bcachefs/btree_write_buffer.c:147 [inline] RIP: 0010:bch2_btree_write_buffer_flush_locked+0x5695/0x59f0 fs/bcachefs/btree_write_buffer.c:375 Code: 31 05 f5 ff e8 8c b8 70 fd 90 0f 0b e8 84 b8 70 fd 90 0f 0b e8 7c b8 70 fd 90 0f 0b e8 74 b8 70 fd 90 0f 0b e8 6c b8 70 fd 90 <0f> 0b e8 64 b8 70 fd 90 0f 0b e8 5c b8 70 fd 90 0f 0b e8 54 b8 70 RSP: 0018:ffffc9000d0de820 EFLAGS: 00010293 RAX: ffffffff84243204 RBX: 010000000000000b RCX: ffff88801f6ca440 RDX: 0000000000000000 RSI: 000000000000000b RDI: 010000000000000b RBP: ffffc9000d0dec70 R08: ffffffff8423f47f R09: 0000000000000000 R10: ffffc9000d0de300 R11: fffff52001a1bc61 R12: 0000000000000000 R13: ffff888044468000 R14: 000000000000000b R15: ffffc9000e600000 FS: 0000555592722380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a002f01098 CR3: 0000000042f12000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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