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 A62AA1E572E for ; Mon, 18 Nov 2024 21:41:31 +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=1731966093; cv=none; b=NMik+XmpTltrfUTn0HsAK2dv322PCpUrwa2W2X+fc81txXSNcvHSYm1RTfV2A/nG+xhIb1CkYSdP+khu3Ntbd0eoNtkNdPkNl0jgFMEb+wfhO4/cVXAVviqrFpffOi+p0oDFRWCDz2yO/xCTbgko0SZr61IRirlktGf/Ga8lM2M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731966093; c=relaxed/simple; bh=11mGdX1odmlaQVSMDbxyzhhP0XCoXErnYShjD3DDITU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=g30vZ5lrxeJf3w2O1fUMWQP77feoOh4gGQPhMoXjg4b9cEZQOiSNDcynt3vREXQr85LWIFwe+VNzhfB7fcKKAtrT22jHUIwaDLciT3L3aajb8IkM5G7dVhlycRz85knIoREYtMXlrRO2sJDGs0wCYefw/LFcCFjg20gVZygwuP0= 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-3a3c5a6c5e1so57984505ab.2 for ; Mon, 18 Nov 2024 13:41:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731966091; x=1732570891; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=5NOPzdf9kB1lp2vrOoulBULUP/flh85FQx/FmtbuZeU=; b=u0M9KnE4wgFaFpWSzapsFdUUCllYb50PULA6IGMUTde3ZaLGUF64nX5WBIqgagkorI TaZSQYbTONUNQlEwS/TZ+fQOHwQPJpA6BnVRiIonMFJtqBE6biOKcLzc79ffVe8a8jYm 6u41VCU6zNoo4dLOeSHYC3KjGnzFU7qSnzqGKfFQf/JKGcxaidjMokcex+NJiOgt2sv9 aLVKS/D65JQvyGactOboueqGIq/G4wOFetIhXk94166mElgqpQyN+tnFJfPyiy6oaX08 c8646QhO83/45pVXKxeGkZihRDfHU/qZpHCC/5uZqgTAORmyqSKEVB/noFwAK4JPXJ8i fdag== X-Forwarded-Encrypted: i=1; AJvYcCUv1JDm7rUFX/YY1Qlxm9gRBmVzm/I2V2CEalM8pNuTs7ZUtonXfLocIZBByB/PfzPVp58fc8L3RxzsXSg=@vger.kernel.org X-Gm-Message-State: AOJu0YxzHuewUQJxjTwyX57yR8NnSugg23VYWTQxiq/PQJ95C8tT8X0R xi8uREt+aEgQhkjE07LhnoSTGmL6CNdf6ZV1/kQcVH28M9o3Afx29C/F6OfoIEGjufdzE0ZT5cw 3Qpj2mLOGgAPEgzqI+SuDb8GuSPn6QtEwzxqf6fNns8fhr5WSNrE/uXI= X-Google-Smtp-Source: AGHT+IHFAeKmnmpBCEKK7xs/B4eujPl+ugTyWKI+UrP9IXrYT/642KkC43LBkXXsbEZjQYgOQz6TFJdgDKQzTLWX17Wp934RlQHR Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:12ca:b0:3a7:6ec2:71bc with SMTP id e9e14a558f8ab-3a76ec27381mr29456505ab.9.1731966090857; Mon, 18 Nov 2024 13:41:30 -0800 (PST) Date: Mon, 18 Nov 2024 13:41:30 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <673bb48a.050a0220.87769.005e.GAE@google.com> Subject: [syzbot] [bcachefs?] kernel BUG in bch2_bucket_alloc_trans (3) 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: cfaaa7d010d1 Merge tag 'net-6.12-rc8' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13649cc0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2aeec8c0b2e420c dashboard link: https://syzkaller.appspot.com/bug?extid=592425844580a6598410 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=1437e130580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=163802e8580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-cfaaa7d0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/63eae0d3e67f/vmlinux-cfaaa7d0.xz kernel image: https://storage.googleapis.com/syzbot-assets/6495d9e4ddee/bzImage-cfaaa7d0.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/902320cb2e25/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+592425844580a6598410@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/bcachefs/alloc_foreground.c:493! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 2975 Comm: kworker/u4:10 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: btree_node_rewrite async_btree_node_rewrite_work RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:493 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:648 Code: e8 a9 3a f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 3f 39 f0 fd e9 e6 fd ff ff e8 65 5d 86 fd 90 <0f> 0b e8 5d 5d 86 fd 90 0f 0b e8 45 4a b9 07 f3 0f 1e fa e8 4c 5d RSP: 0018:ffffc9000d8fe140 EFLAGS: 00010293 RAX: ffffffff840e8cab RBX: 0000000000000019 RCX: ffff888040104880 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc9000d8fe868 R08: ffffffff840e5f79 R09: 0000000000000000 R10: ffffc9000d8fe728 R11: fffff52001b1fcea R12: dffffc0000000000 R13: ffff8880438ec000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005596e117f4e8 CR3: 0000000011cf8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_bucket_alloc_set_trans+0x517/0xd30 fs/bcachefs/alloc_foreground.c:808 __open_bucket_add_buckets+0x13d0/0x1ec0 fs/bcachefs/alloc_foreground.c:1057 open_bucket_add_buckets+0x33a/0x410 fs/bcachefs/alloc_foreground.c:1101 bch2_alloc_sectors_start_trans+0xce9/0x2030 __bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:339 [inline] bch2_btree_reserve_get+0x612/0x1890 fs/bcachefs/btree_update_interior.c:549 bch2_btree_update_start+0xe56/0x14e0 fs/bcachefs/btree_update_interior.c:1247 bch2_btree_node_rewrite+0x1c0/0x1280 fs/bcachefs/btree_update_interior.c:2148 async_btree_node_rewrite_trans fs/bcachefs/btree_update_interior.c:2236 [inline] async_btree_node_rewrite_work+0x31e/0xda0 fs/bcachefs/btree_update_interior.c:2249 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:493 [inline] RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:648 Code: e8 a9 3a f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 3f 39 f0 fd e9 e6 fd ff ff e8 65 5d 86 fd 90 <0f> 0b e8 5d 5d 86 fd 90 0f 0b e8 45 4a b9 07 f3 0f 1e fa e8 4c 5d RSP: 0018:ffffc9000d8fe140 EFLAGS: 00010293 RAX: ffffffff840e8cab RBX: 0000000000000019 RCX: ffff888040104880 RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000 RBP: ffffc9000d8fe868 R08: ffffffff840e5f79 R09: 0000000000000000 R10: ffffc9000d8fe728 R11: fffff52001b1fcea R12: dffffc0000000000 R13: ffff8880438ec000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd30c9ff000 CR3: 000000004399a000 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