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 B9FD544A3FD for ; Tue, 1 Sep 2026 19:58:28 +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=1788292710; cv=none; b=nRYg5gmS0wP/4GkY8HI0HFODMZ9tT1Nc2d+VYtA5JoqYCAU5bKub8QtnBJBGjUIDBgybx0msxt8OR17pxqUC/Lqouz/ucXWQZFovGZqqFjB0ULJFeAOWAo0ZmTY096zxRGre5Rf8Q0vPszA2B/k9Wjno5pak9XqcS2b4IDgd2Yc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788292710; c=relaxed/simple; bh=8YkzD8ARuX0vYO1367jGODTXnnUTuCYssGwFJZqv9wM=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Ou+NjCbVM+SiVBujeyFfP1uCNMzE41x0o0+rxziYxkRUycktny7yUAuiLUqE3IF5OwGIrLhIuNXWEkDfK1pUVlY+NRxQIO2E7oHMYlsyV6EXZXug4pqjjKY/+mXcEpI0K8bPzasA95+8wXktT6x/s2YV1GiYgSC1mtIzgckfpBE= 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 5614622812f47-4b39374fab5so59992b6e.1 for ; Tue, 01 Sep 2026 12:58:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788292707; x=1788897507; 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=c7h/zJKghNpqnowb2E2GhH8KGrsNsXaWvN5Fli5UPXU=; b=WIWZFbEb9KjePr2FhjXrL6RP70RMTBgYSG0cXK0HL7cLjgjn8wl7pA4wL//w4wK4hT 2BO5jaF2dhQJtfat0ZhACrZitG4wV/1aygj1qOTUZljH5O8t6X/jLHP0pWwebRPrAAe5 RrJigRTSYvBec3FeuMLFp9C+uvkl/tmdBvmr5Stz5rDqXX0a3ZOTAcImtxGMUHdGuFRR g4Ms/jykAvGkaqcYty+6ofFWdGBB4HxyV2KnixMIZ8xVLfNgZ8ilw6VpRtziflDmsPX+ VU5c+gGqDR0qJ726i0aKKDcYduRE0tIfH6aNi/OSuoq2hGI1PcddRVx1Ds5nKsvdUQbZ ChRg== X-Gm-Message-State: AFuF++n0ztQ+W31Bz2AA0JD5qXvEaCRM63Y2vbG6LAC680ophdkeNz5U hYkAOWyng+wRY9AZEGjZeockR7qwoojtQaNHahA6bJpHUOj91eIFv4zryzgepEH0FDTDUSSrhiX IDSc3CaHoXKY5PDuS77XHKJuQHznupBsvxRRcjfa3VL6o/bG8Atpa6fsJinfhQw== Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:30a6:b0:48a:ddd4:d36f with SMTP id 5614622812f47-4b5b8064ab9mr10831910b6e.8.1788292707462; Tue, 01 Sep 2026 12:58:27 -0700 (PDT) Date: Tue, 01 Sep 2026 12:58:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a972e63.610165a0.2b3dfd.0001.GAE@google.com> Subject: [syzbot] [raid?] WARNING in create_strip_zones (2) From: syzbot To: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, magiclinan@didiglobal.com, song@kernel.org, syzkaller-bugs@googlegroups.com, xiao@kernel.org, yukuai@fnnas.com, yukuai@fygo.io Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 818bebeb63dd drm/xe: Don't hand out the flat CCS storage a.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13cb6d79580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3c35c7e43de75adb dashboard link: https://syzkaller.appspot.com/bug?extid=a32ff75e417c0f49a8e9 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-818bebeb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9adea981957f/vmlinux-818bebeb.xz kernel image: https://storage.googleapis.com/syzbot-assets/6676075cd03e/bzImage-818bebeb.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a32ff75e417c0f49a8e9@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 32768 xfs: Deprecated parameter 'noattr2' XFS: noattr2 mount option is deprecated. XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 XFS (loop0): Ending clean mount XFS (loop0): Quotacheck needed: Please wait. XFS (loop0): Quotacheck: Done. md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+ md0: Warning: Device ram1 is misaligned ------------[ cut here ]------------ !(flags & __GFP_NOWARN) WARNING: mm/slub.c:6908 at __kvmalloc_node_noprof+0x7de/0x870 mm/slub.c:6908, CPU#0: syz.0.0/5312 Modules linked in: CPU: 0 UID: 0 PID: 5312 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:__kvmalloc_node_noprof+0x7de/0x870 mm/slub.c:6908 Code: ff 48 c7 c7 b0 5c e9 8e 48 89 de e8 5c eb ea 02 e9 fd fb ff ff 48 c7 c7 f0 5c e9 8e 48 89 de e8 48 eb ea 02 e9 32 fc ff ff 90 <0f> 0b 90 45 31 f6 e9 ef fd ff ff 90 0f 0b 90 e9 46 ff ff ff 49 83 RSP: 0018:ffffc9000ee9f550 EFLAGS: 00010246 RAX: 00000001ffffffff RBX: 00000000000029c0 RCX: 8000000000000001 RDX: ffffffffffffffff RSI: ffffffff8c6d1560 RDI: ffffffff8c6d1520 RBP: ffffffffffffffff R08: 00000000000029c0 R09: 00000000ffffffff R10: 0000000000000006 R11: 0000000000000002 R12: 00000000ffffffff R13: ffffffff887a930f R14: 0000000000000000 R15: 0000000000000200 FS: 00007f8f049f86c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f70c37ede9c CR3: 0000000042c8f000 CR4: 0000000000352ef0 Call Trace: create_strip_zones+0xb6f/0x2170 drivers/md/raid0.c:150 raid0_run+0x3de/0xed0 drivers/md/raid0.c:424 md_run+0xc3d/0x1cd0 drivers/md/md.c:6779 do_md_run+0x35/0x720 drivers/md/md.c:6880 md_ioctl+0x1e2b/0x2610 drivers/md/md.c:8515 blkdev_ioctl+0x5e3/0x740 block/ioctl.c:798 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: 0033:0x7f8f03b9e159 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:00007f8f049f7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8f03e25fa0 RCX: 00007f8f03b9e159 RDX: 0000000000000000 RSI: 00000000400c0930 RDI: 000000000000000a RBP: 00007f8f03c35024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8f03e26038 R14: 00007f8f03e25fa0 R15: 00007ffdcdc958c8 --- 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