From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi2-f7.google.com (mail-oi2-f7.google.com [74.125.231.199]) (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 A3006DF59 for ; Tue, 25 Aug 2026 00:03:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787616217; cv=none; b=e5rrsRD/H2/cgVeok4LtCg2Pgtip48z7ae3zM7Igi2WorYVP9Ek0XlDJRf2i03MO0/RteF9bB2kxLXNJwWBCn5jPR4ZqHB5vKGDWcE/90GNUD4TRk04HXgduKKVpJ8TRmPF3f0lwstvKqrMBEK9T0fyWpxoq+jOqtyxwFjbeKCA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787616217; c=relaxed/simple; bh=n9wTPbzPnqsbnzU0dLYq8c0R22pJ7v0CecfLYJtNN94=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ryzGEEPBgAY9Pn+LQ+ZuZ4NGIAO2k6vMqyQD34FjSuJfAj/3N7Cul8WyG74ZpHESJXymIbpAMj1+uDqYWfnYppwa8H1YSPXztPYRDS2HP6hGA3LEEB1YcCHHT6TLo2HEd4mOpw7QzAnlkr6eY0X3rX7U9uYCZY+2qt7OncHdEzo= 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=74.125.231.199 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-oi2-f7.google.com with SMTP id 46e09a7af769-7f3aa35af14so1430238a34.1 for ; Mon, 24 Aug 2026 17:03:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787616214; x=1788221014; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=ghidRltZKHo1k7fmy+IdUK7PxGwGYHFGIq/aVrSbUhQ=; b=SSOuJ46ewT9pv37QhMgykFJKZ0lUUKTeiW/bjfqhzIhChT0KWpFr/qsMKAOrU6OwUj FSu9QwHGJzJyHbCUQem5Zyb/FG6FOaigyp46VtMCa8lxMi8DeEPXRgTYYu/N541auLpS gL1SEq2xTv8eIjoTArWXs/Hz7yvsiJhkHSLJqenMIQkVKuUFjgQI3HMukmcM58B1sTEF ZFqOej3Dg8bXhiT6FmCnDJKLZcpusrAFwkNZF5qWW6ecv0uEXIFnOYsHCxkQWP5ukvYm 0K6E2Z94WuHR1x33V5q4jQ38QIR1gsX4w7URUt/JIr1kcaX7KSGsWiRnOKuAY7Hbd6kV ZSSQ== X-Forwarded-Encrypted: i=1; AHgh+Rp2pB1ciPK7t1Yqky5sySVsJJZnSVlTYPMV76bqY7Rh3EWEk9yypeEaFhHTnMARvNfjJwjfJpHYFrO+20Y=@vger.kernel.org X-Gm-Message-State: AFuF++k5buw2OWwS7gj+9ssVjRvO8AbTEyKxYWZfz+oE+NHAWmtllB9b l/DW1HxycZz8SQqad+CfMAHLrCh8eFu2pARkdMHVbo/O/p1IUy7mTNv/5srMi9XRCvmYKZvEnly D7ZT9AqOtaHGb9niFBsIySlxCyHFeQO+9HBBbRzSK9+souxdZgrZSA44IYNY= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:ec44:0:b0:6b1:7ee2:da31 with SMTP id 006d021491bc7-6b17ee2dc66mr10382010eaf.11.1787616214704; Mon, 24 Aug 2026 17:03:34 -0700 (PDT) Date: Mon, 24 Aug 2026 17:03:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a8cdbd6.dbb3a75c.7844.0013.GAE@google.com> Subject: [syzbot] [mm?] WARNING in setup_conf From: syzbot To: akpm@linux-foundation.org, apopple@nvidia.com, byungchul@sk.com, david@kernel.org, gourry@gourry.net, joshua.hahnjy@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, matthew.brost@intel.com, rakie.kim@sk.com, syzkaller-bugs@googlegroups.com, ying.huang@linux.alibaba.com, ziy@nvidia.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 9d2ed026f031 Merge tag 'sysctl-7.03-rc1' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1124919e580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6e414d6e0a79e71d dashboard link: https://syzkaller.appspot.com/bug?extid=75f49ec552cc74d9d69b compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-9d2ed026.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/89c0c0c0f535/vmlinux-9d2ed026.xz kernel image: https://storage.googleapis.com/syzbot-assets/80d7adeb0e7d/bzImage-9d2ed026.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+75f49ec552cc74d9d69b@syzkaller.appspotmail.com tipc: Started in network mode tipc: Node identity 2007ff, cluster identity 4711 tipc: Node number set to 2099199 md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+ ------------[ cut here ]------------ 1 WARNING: mm/page_alloc.c:5280 at __alloc_frozen_pages_noprof+0x2ce/0x380 mm/page_alloc.c:5280, CPU#0: syz.0.0/5310 Modules linked in: CPU: 0 UID: 0 PID: 5310 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__alloc_frozen_pages_noprof+0x2ce/0x380 mm/page_alloc.c:5280 Code: 74 10 4c 89 e7 89 54 24 0c e8 8e 2d 0e 00 8b 54 24 0c 49 83 3c 24 00 0f 85 ab fe ff ff e9 ac fe ff ff c6 05 74 6e 18 0e 01 90 <0f> 0b 90 e9 17 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 RSP: 0018:ffffc9000d50f520 EFLAGS: 00010246 RAX: ffffc9000d50f500 RBX: 0000000000000015 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000d50f588 RBP: ffffc9000d50f610 R08: ffffc9000d50f587 R09: 0000000000000000 R10: ffffc9000d50f560 R11: fffff52001aa1eb1 R12: 0000000000000000 R13: 1ffff92001aa1ea8 R14: 0000000000040dc0 R15: dffffc0000000000 FS: 00007fe2b9aac6c0(0000) GS:ffff88808c519000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc93d2c090 CR3: 0000000044100000 CR4: 0000000000352ef0 Call Trace: alloc_pages_mpol+0x212/0x390 mm/mempolicy.c:2490 ___kmalloc_large_node+0x4c/0x120 mm/slub.c:5274 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5305 __do_kmalloc_node mm/slub.c:5322 [inline] __kmalloc_noprof+0x409/0x720 mm/slub.c:5359 _kmalloc_noprof include/linux/slab.h:992 [inline] _kzalloc_noprof include/linux/slab.h:1309 [inline] setup_conf+0x28b/0xce0 drivers/md/raid10.c:3883 raid10_run+0x1d2/0x16c0 drivers/md/raid10.c:3984 md_run+0xdbd/0x1e00 drivers/md/md.c:6760 do_md_run+0x35/0x720 drivers/md/md.c:6861 md_ioctl+0x1c58/0x2580 drivers/md/md.c:8492 blkdev_ioctl+0x5e3/0x740 block/ioctl.c:797 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe2b8b9e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe2b9aabfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe2b8e25fa0 RCX: 00007fe2b8b9e0d9 RDX: 0000000000000000 RSI: 00000000400c0930 RDI: 0000000000000009 RBP: 00007fe2b8c35024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe2b8e26038 R14: 00007fe2b8e25fa0 R15: 00007ffe1ca65d58 --- 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