From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 931681EA85 for ; Sat, 28 Sep 2024 17:15:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727543727; cv=none; b=XYfVg1Xge4biDRtFcZGKchLE8dX3V9QVm7j/XMGf1vMOSU0hheQlaHgo8/O2wKCwQ6rc0yJ/zhLFW/MAsEJT400JrOEIvLb9InKaYlyLsGbxzFIJUIf8ddfajiyZ/q7+N1A97dvhQjsDLD3IGWXgwks8j7JPLQUR9oA7w8prNq0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727543727; c=relaxed/simple; bh=L75wV3goodnEVnOpoVyb8KtycNqTR0T41MA0GwpACTY=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=AdtFgl/ty4xg62yqiRk6qqkpwNMSlUlbbRJX1y/zTKqePxRsh6c+038ieoje4XFlsAIvILO5ZAvnmEJeP6OMTI02Q6wad16wcDHbSPMLLr6WoQkQ5yW01Uo8GKvsNl7TkUFpXlkmjdjVetfeOiOXojrM8oaxphUMACNsJr6x9QY= 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=209.85.166.198 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-f198.google.com with SMTP id e9e14a558f8ab-3a3479460f4so17841125ab.2 for ; Sat, 28 Sep 2024 10:15:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727543724; x=1728148524; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/+eM6+uGjRhV6pjAlMDlNiw0Ug6spSXD9CNoxfKY6Ds=; b=vmTXMO1b0hrUV5foofOQfJe4J4pcheNu41ZB6PthIatYTx0hJ/undSM7KjoTxAjKJk XJkG19PRxaQasetp1+SDDLW5TJZfbVslIDsOoQBC9ZqIuuR9e7IvQkjkYROG+XQyTLr9 EGAglzwkyF1T17xtCL51WeqJdJbFhsv42O4EU7AWcX25u5/9V32IZZGGvzarVJnz0Rrw nasawTbM6FHJsews/wKTxG6COkI6qRy7qYYSFniLKBbKbLe7MvC2QO2vzsx28xjCVC58 4vX0r7Z2mXbPP4rAH/VkA+V03QrcqplSSdZ6ndLOcQwxxoFG43WutcuxAlAj3UDJVJ/V oUDg== X-Forwarded-Encrypted: i=1; AJvYcCXdVUbKUY3SXmwdU4txnqf/OkDP/BIZ/362OBKQPcKsM1wBgPOmywhPiDSOl7nMd67uTF5W4tYR8SYSLqw=@vger.kernel.org X-Gm-Message-State: AOJu0Yy5Q2HdxbF3+WdxBaOpYpu+KCMvNEEV4aAqsaB/w9PSECqyAYLq VDD0uUo32RR8lBugEae+BSEHTdZaKhfVur3AocECmIGfvei84CGRuWmusk3aNlAjFdy44hmG6vt VVWcstsfj4wAeba2NTsygaKTVOfOEudS4v7hUJnhloqz+mv2w0VDJhZM= X-Google-Smtp-Source: AGHT+IEer9NcnjoNSnrxIFC6zYS++mj0XSXF3vOSC2bfzwfbfPfDW1dhX46R/2dWw23CC9GzHz46fkhGazztUq1lvdfwy59tzgRZ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:c56f:0:b0:3a0:9954:a6fa with SMTP id e9e14a558f8ab-3a345171ebfmr49175825ab.9.1727543724762; Sat, 28 Sep 2024 10:15:24 -0700 (PDT) Date: Sat, 28 Sep 2024 10:15:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66f839ac.050a0220.aab67.0006.GAE@google.com> Subject: [syzbot] [kernel?] WARNING in enqueue_dl_entity From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 13882369ceb9 Merge tag 'hid-for-linus-2024092601' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17334507980000 kernel config: https://syzkaller.appspot.com/x/.config?x=f1af1dc2e43cf22f dashboard link: https://syzkaller.appspot.com/bug?extid=00a022dc9979d67df050 compiler: aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/384ffdcca292/non_bootable_disk-13882369.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a1a2db588faf/vmlinux-13882369.xz kernel image: https://storage.googleapis.com/syzbot-assets/a3f594a63d31/Image-13882369.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+00a022dc9979d67df050@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 34 at kernel/sched/deadline.c:1995 enqueue_dl_entity+0x47c/0x590 kernel/sched/deadline.c:2029 Modules linked in: CPU: 1 UID: 0 PID: 34 Comm: kcompactd0 Tainted: G B 6.11.0-syzkaller-10729-g13882369ceb9 #0 Tainted: [B]=BAD_PAGE Hardware name: linux,dummy-virt (DT) pstate: a14000c9 (NzCv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : enqueue_dl_entity+0x47c/0x590 kernel/sched/deadline.c:1995 lr : dl_server_start+0x44/0x12c kernel/sched/deadline.c:1650 sp : ffff800082eab970 x29: ffff800082eab970 x28: f3f0000004f45c00 x27: 0000000000000000 x26: 0000000000000001 x25: 0000000000000000 x24: 0000000000000048 x23: fff000007f8ee800 x22: 0000000000000001 x21: 000000000016e360 x20: 0000000000000001 x19: fff000007f8ef168 x18: 0000000000000000 x17: fff07ffffd1e0000 x16: ffff800080008000 x15: 0000000000000000 x14: 00000000000002e1 x13: 0000000000000377 x12: 0000000000000001 x11: fff000007f8ee880 x10: 0000000000000001 x9 : 0000000000000048 x8 : 0000000000100000 x7 : 0000000000000001 x6 : f3f0000004f45bc0 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000001 Call trace: enqueue_dl_entity+0x47c/0x590 kernel/sched/deadline.c:2029 dl_server_start+0x44/0x12c kernel/sched/deadline.c:1650 enqueue_task_fair+0x11c/0x3a4 kernel/sched/fair.c:7040 enqueue_task+0x58/0xbc kernel/sched/core.c:2020 activate_task+0x68/0x80 kernel/sched/core.c:2062 attach_task+0x4c/0x74 kernel/sched/fair.c:9631 attach_tasks kernel/sched/fair.c:9666 [inline] sched_balance_rq+0x488/0xc74 kernel/sched/fair.c:11743 sched_balance_newidle.constprop.0+0x1b0/0x3e4 kernel/sched/fair.c:12785 pick_next_task_fair+0x50/0x320 kernel/sched/fair.c:8933 __pick_next_task kernel/sched/core.c:5955 [inline] pick_next_task kernel/sched/core.c:6477 [inline] __schedule+0x158/0x8e8 kernel/sched/core.c:6629 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0x34/0x104 kernel/sched/core.c:6767 schedule_timeout+0x80/0xf4 kernel/time/timer.c:2615 kcompactd+0x204/0x374 mm/compaction.c:3181 kthread+0x114/0x118 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 ---[ end trace 0000000000000000 ]--- --- 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