From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 5D40A10E0 for ; Thu, 26 Dec 2024 03:39:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735184368; cv=none; b=Yge8f7jDZek2LPNE4vOr5LjRUYoMh3NlOOhtDQ32tgbuJ2kvkoMThytFZf+DCQamZmRRCJb4N14a77diSyPv/F/ejHI5SIrC8RLOujxvgrDM2ERo17+4EY7EqJg6MgaAdz9xmVwjJeTYlmxhqTzIUJqY+J8a4yC7/jbU4NLrkgw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735184368; c=relaxed/simple; bh=aUnOo3v4wb/t7TJmyikhvE9TmE+5q7Udxb986FhTbrU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=PpetJqn2qwO/a5HLDtU+VwdulliAY5dURJ4igsrBycMaFfI+aMepTl81ikPV60g5JA6w6mcu4fh0R6t9ap16SyhSpgW8RnUDb4dIslRP9X6eV2CyRlDGq8glgL5VNT3quGqxwuKXIt75qEvszutlNkk08SFUbMBvjrW83BjZjt4= 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=209.85.166.207 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-f207.google.com with SMTP id e9e14a558f8ab-3a817e4aa67so55306585ab.2 for ; Wed, 25 Dec 2024 19:39:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735184365; x=1735789165; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=sfmm0tPZdA1FSBwZZpJhEyYnyyXHi6vPBd38anrspMo=; b=MmDx9FBZMDk+zeN53v342+j25nvgLsmArOEBSPk19ELwJOZY9/DOxhZjMmUlSgVhiL m3G++HLj/0Aiwz6PT1rL/n+WX4VPs+bKS2oYTyw9LhIinUnPqgwsQWqHOZVbEnp+uKFv LQroLQdIF3QmQ/F2hPCZ1HkOkkjw5UqA8/j+KNYzM7SR4lwP6/2x6qoxUOu61FqGq1eN e9sX6o2tF2eenHs5qOUY5BLhpQm3vNImfPZ7/N+MVL6lMw1eHYalmZiCcDEkw2JojUTF I43QmRtE7hBI9V+3hWPI47aWWKjP4gDpurPQPPKwt67NHErLw27f4gZDb6Ad57rS+RWz WAgA== X-Forwarded-Encrypted: i=1; AJvYcCUYJMuLTPQaoOIVxI0zH0h2AaFkfgHjC1YZ3SdU3o3xXMV30lXZPqEgRYUx3tahzbtpavgsfvZk4NnXdiE=@vger.kernel.org X-Gm-Message-State: AOJu0YzBoNKq8M53U/gBYF9fnU+sZcMkduPBfrChq7gOB2RMhsM0521b WH7R5aUQuFVw1AAzYZGDkmuraQM/TnRWxtZVVq475WqZAmJYoX5hisT1OxLFT7G1DVigLkv66ff Qk56sLRViYyY4Is8m0a/gdYrxMR+mTTSnJl9CCUqZb5jRvovVswFZmcA= X-Google-Smtp-Source: AGHT+IG45aA4Dp1y06RiL8k/Q5Gf+HcLJSIeS1BnhZ+vpe82HpqYk9v4EnXzmUGvIVDkybadOfeuwG88SuWYCYbZjr+3M0r3Gt3j Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1ca5:b0:3a7:a29b:c181 with SMTP id e9e14a558f8ab-3c2d2d4f1e4mr172834315ab.13.1735184365354; Wed, 25 Dec 2024 19:39:25 -0800 (PST) Date: Wed, 25 Dec 2024 19:39:25 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <676ccfed.050a0220.2f3838.03f8.GAE@google.com> Subject: [syzbot] [kernel?] WARNING in flush_cpu_slab (2) From: syzbot To: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, mingo@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: a99b4a369a54 Merge tag 'pci-v6.13-fixes-2' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=139b1fe8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6a2b862bf4a5409f dashboard link: https://syzkaller.appspot.com/bug?extid=6eb04f338c0358f11050 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/429b293cfc4d/disk-a99b4a36.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6ecf52e676b2/vmlinux-a99b4a36.xz kernel image: https://storage.googleapis.com/syzbot-assets/7b4ff2ac886d/bzImage-a99b4a36.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6eb04f338c0358f11050@syzkaller.appspotmail.com ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(l->owner) WARNING: CPU: 1 PID: 969 at ./include/linux/local_lock_internal.h:30 local_lock_acquire include/linux/local_lock_internal.h:30 [inline] WARNING: CPU: 1 PID: 969 at ./include/linux/local_lock_internal.h:30 flush_slab mm/slub.c:3251 [inline] WARNING: CPU: 1 PID: 969 at ./include/linux/local_lock_internal.h:30 flush_cpu_slab+0x39e/0x450 mm/slub.c:3309 Modules linked in: CPU: 1 UID: 0 PID: 969 Comm: kworker/1:2 Not tainted 6.13.0-rc3-syzkaller-00237-ga99b4a369a54 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: slub_flushwq flush_cpu_slab RIP: 0010:local_lock_acquire include/linux/local_lock_internal.h:30 [inline] RIP: 0010:flush_slab mm/slub.c:3251 [inline] RIP: 0010:flush_cpu_slab+0x39e/0x450 mm/slub.c:3309 Code: ff ff 90 e8 24 b9 c3 02 85 c0 74 22 83 3d 8d b3 1e 0e 00 75 19 90 48 c7 c7 6e 70 06 8e 48 c7 c6 d2 c3 06 8e e8 13 1b 65 ff 90 <0f> 0b 90 90 90 e9 22 fd ff ff 90 e8 f2 b8 c3 02 85 c0 74 22 83 3d RSP: 0018:ffffc90003b7fb58 EFLAGS: 00010046 RAX: 10f2a25ca633b400 RBX: ffffe8ffffd8d2f0 RCX: ffff888026943c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff81601a42 R09: fffffbfff1cfa210 R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: 0000607f4768d2d0 R13: ffffffff8168ee96 R14: ffff8880b8700000 R15: ffff88804d79b3c0 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3f1d29 CR3: 000000004f5da000 CR4: 0000000000350ef0 Call Trace: process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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 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