From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 467BB1411DE for ; Mon, 11 Nov 2024 11:01:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731322867; cv=none; b=Rnvp2gRZYyTSzHP/s/xynUxaz5xlLqz6jIwqr3UodYBsmziTCzmBr6hy7TSbvKG9BxdqC+qFRgpmcxFLW/GHfRO/X2dvwvzOmFP8eLtXpSPdzcn0r6hiAbU8O32t7/e8RvXHaTZalJZmDr1+ol5OEssaLBoYx69ykgKaKsDCZUo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731322867; c=relaxed/simple; bh=H6JOYtDAXFqn3QoPqhZ5DjtJcPuDyp07yeiiekeOIbo=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=gCWqPhmhU7YrgEvDIOwNtOn4UzVpvlmjyxBksuSEZMxw4IaUC2gF6Dze5tsIc0slrZy5+V20DJfj70NBmy5FPWd9+5JSLx3pOIzXvfF9cnvrd9+3QdlRMcG68YB/EW+S8b3+JdIuFoKWzTy+cJYNv/YsAhFGg3lGarSp8kqlXsk= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-83ac79525b8so480533039f.3 for ; Mon, 11 Nov 2024 03:01:06 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731322865; x=1731927665; 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=H4wZSiWc0LOwLNESMvIM4p/cqTxFb7+PjaB1O23q5pI=; b=vtZunpgQShjhiUctakMuui3e865RD787/ilJ9rjKgq9xsFHZD2V8dFgc9iShI2F80m QlBdmgQVjLwzhO67ws/1vpBPaxOV9ckSC6dtg9ewdlPppg5Y2X56o4HPLc6g+jVIFbON O+HB/SLMgrJBoyyo+Rh7IjzU30L3LQwD3eWR9NW/R6iZqe9cqO/oIJvaHT4Gg8WXBS31 ldsVhHbLySY6Kefw+WDEh2GTZaNCV0rUeAtOFQ67aAJEixoqpyAXMIArLDNIPLCrtQZ3 LbffC56yfAi7HSq0cC9VBkTyYakwQydJNVQ8KINJ56ivPIVUO3QquoDFC+fLTfdvTlYA +SXg== X-Forwarded-Encrypted: i=1; AJvYcCXY7aDPVtT9kM8yVzBshHY1uUtWoakmjQ3a+OhBnnLI+Ky3EYpDfWmzKaAEuDyRf1wM5BQ+HDMUiJyU3wM=@vger.kernel.org X-Gm-Message-State: AOJu0Yz9f95Vdhg0M1NicesoowWABLrz9twMMaQGntSqFnmGPH+D53zm 1T5AXN9tK1Oz1MKQKnA1ae/EIwRW5ifMG1YCLxwh2DjrB45gOqN87Mou9biAyov3XaKD/+H2B28 A19VAnp80M7JFmQGT9LRxqt7Iz4zEzhj4B5x1c4ymSgbo4hDJ+j/yg1g= X-Google-Smtp-Source: AGHT+IF5qO9lnlFO0JiTc8+FAXeBC8c0KXtd+6SixRqRBU1Gvasf9c4+ABMgePIFfHT3M6wPKWyDHFNJrgg/1grr+taoYiJK9fRu Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1949:b0:3a6:bb36:ac1f with SMTP id e9e14a558f8ab-3a6f1a45467mr121452885ab.22.1731322865413; Mon, 11 Nov 2024 03:01:05 -0800 (PST) Date: Mon, 11 Nov 2024 03:01:05 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6731e3f1.050a0220.138bd5.0066.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] KMSAN: uninit-value in bch2_btree_node_check_topology From: syzbot To: gianf.trad@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in __bch2_btree_node_hash_insert parent: u64s 5 type btree_ptr SPOS_MAX len 0 ver 0 child: u64s 11 type btree_ptr_v2 U64_MAX:18374686479671623680:50331647 len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0, fixing bcachefs (loop0): bch2_get_scanned_nodes(): recovering xattrs l=0 U64_MAX:18374686479671623680:50331648 - SPOS_MAX bcachefs (loop0): set_node_max(): u64s 11 type btree_ptr_v2 U64_MAX:18374686479671623680:50331647 len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0 -> SPOS_MAX ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_cache.c:280! Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 0 UID: 0 PID: 6643 Comm: syz.0.15 Not tainted 6.12.0-rc7-syzkaller-g2d5404caa8c7-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:__bch2_btree_node_hash_insert+0x1b3c/0x1b40 fs/bcachefs/btree_cache.c:280 Code: 45 00 00 41 c6 45 08 00 bf 02 00 00 00 e8 2c 23 7c fc 84 db 0f 84 b1 fe ff ff e8 1f 20 7c fc e9 bc ea ff ff e8 15 20 7c fc 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f RSP: 0018:ffff88803ddceda8 EFLAGS: 00010293 RAX: ffffffff8538d21b RBX: ffff888042706400 RCX: ffff888118faa0c0 RDX: 0000000000000000 RSI: ffff88813fffab40 RDI: ffff8880427065c8 RBP: ffff88803ddceed0 R08: ffffea000000000f R09: 0000000000000058 R10: ffff888041f06520 R11: ffff88803d493180 R12: 0000000000000000 R13: ffff888118faabf8 R14: ffff888043f814f8 R15: ffff8880427065c8 FS: 00007f182314a6c0(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555567677e0 CR3: 000000004261c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: set_node_max+0xa7d/0xb00 fs/bcachefs/btree_gc.c:188 btree_repair_node_end fs/bcachefs/btree_gc.c:299 [inline] bch2_btree_repair_topology_recurse+0x813d/0x8ac0 fs/bcachefs/btree_gc.c:425 bch2_check_topology+0xa2f/0x1200 fs/bcachefs/btree_gc.c:550 bch2_run_recovery_pass fs/bcachefs/recovery_passes.c:185 [inline] bch2_run_recovery_passes+0xaf9/0xf80 fs/bcachefs/recovery_passes.c:238 bch2_fs_recovery+0x447b/0x5b00 fs/bcachefs/recovery.c:861 bch2_fs_start+0x7b2/0xbd0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0x13ea/0x22d0 fs/bcachefs/fs.c:2170 vfs_get_tree+0xb1/0x5a0 fs/super.c:1814 do_new_mount+0x71f/0x15e0 fs/namespace.c:3507 path_mount+0x742/0x1f10 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x722/0x810 fs/namespace.c:4034 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4034 x64_sys_call+0x255a/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f182237feba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1823149e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f1823149ef0 RCX: 00007f182237feba RDX: 0000000020000180 RSI: 0000000020000000 RDI: 00007f1823149eb0 RBP: 0000000020000180 R08: 00007f1823149ef0 R09: 0000000000800008 R10: 0000000000800008 R11: 0000000000000246 R12: 0000000020000000 R13: 00007f1823149eb0 R14: 00000000000059bc R15: 0000000020000300 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__bch2_btree_node_hash_insert+0x1b3c/0x1b40 fs/bcachefs/btree_cache.c:280 Code: 45 00 00 41 c6 45 08 00 bf 02 00 00 00 e8 2c 23 7c fc 84 db 0f 84 b1 fe ff ff e8 1f 20 7c fc e9 bc ea ff ff e8 15 20 7c fc 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f RSP: 0018:ffff88803ddceda8 EFLAGS: 00010293 RAX: ffffffff8538d21b RBX: ffff888042706400 RCX: ffff888118faa0c0 RDX: 0000000000000000 RSI: ffff88813fffab40 RDI: ffff8880427065c8 RBP: ffff88803ddceed0 R08: ffffea000000000f R09: 0000000000000058 R10: ffff888041f06520 R11: ffff88803d493180 R12: 0000000000000000 R13: ffff888118faabf8 R14: ffff888043f814f8 R15: ffff8880427065c8 FS: 00007f182314a6c0(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555567677e0 CR3: 000000004261c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Tested on: commit: 2d5404ca Linux 6.12-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14d63ea7980000 kernel config: https://syzkaller.appspot.com/x/.config?x=dcca673786a14715 dashboard link: https://syzkaller.appspot.com/bug?extid=494bcd3631a9f6759f91 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=10f368c0580000