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 F21EFD28B for ; Sat, 23 Dec 2023 12:49:18 +0000 (UTC) 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-35fc6d9af8bso29205915ab.0 for ; Sat, 23 Dec 2023 04:49:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703335758; x=1703940558; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=8jPlsN7Ml/+XR4qokePSVPYK/NjAAU4vFSo45xfBkHM=; b=KlxB0Xgtn5SuG1GtyFQaLc6GHf3n8FjPPEEAX0h46agMotZyreKUdfq1fKiTjaXqih 9+66YRLzWjXVHGTgkI7giK1bvGBKIrvOV3fEgEhaY92oNxZUGumBEftoRpI0feu4KzIb PSOLUAm2tx1qkttZ/+0d9ewRh/l6wKOzKfUooQundONj4jLFxlbM3V8CfusaQC4IAn2x ikLbzBgQ4WpAkEggTv5lsmPloVK9J5YY+1bEwfgS94NjFvemZ60PgrdsvY+qkQWQOTbf bo+JdQHlRGynxtqUc7G1uKHrgS5ZPUlsZX8EilEXbMehpQoWj0IdKZCelXDg/hsK2l20 aDmA== X-Gm-Message-State: AOJu0YzW1lo/is4K+gZ2YHKW/5bIWQokQjzuGB7vNG9k3g77pZj6j+fL DnOiSL5sTBb7IHbV2fDT2tYIk5rcsXKum8GRz9vf5pVIZwDl X-Google-Smtp-Source: AGHT+IGKjtDVv/BwNjkyahYD1ta4x0QVryvLbcYlokVC/ReU3y+mA3PBbk7B3gA+dsjpbiDflxKoXE4BFahG5lO+JqFcrt4j7CMo Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:174c:b0:35f:c187:ea04 with SMTP id y12-20020a056e02174c00b0035fc187ea04mr354022ill.3.1703335758089; Sat, 23 Dec 2023 04:49:18 -0800 (PST) Date: Sat, 23 Dec 2023 04:49:18 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cb54de060d2cc266@google.com> Subject: [syzbot] [riscv?] kernel panic: Kernel stack overflow (2) From: syzbot To: aou@eecs.berkeley.edu, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, palmer@dabbelt.com, paul.walmsley@sifive.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 3b5c14361d61 riscv: Fix set_direct_map_default_noflush() t.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes console output: https://syzkaller.appspot.com/x/log.txt?x=16d5ffd6e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=a5c1ede998d7cef2 dashboard link: https://syzkaller.appspot.com/bug?extid=5c1ebfe49c5e8e998e75 compiler: riscv64-linux-gnu-gcc (Debian 12.2.0-13) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: riscv64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/a741b348759c/non_bootable_disk-3b5c1436.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/11e6a4fa8d50/vmlinux-3b5c1436.xz kernel image: https://storage.googleapis.com/syzbot-assets/6570c8642590/Image-3b5c1436.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5c1ebfe49c5e8e998e75@syzkaller.appspotmail.com s11: ff60000008bd0a9c t3 : ff20000002078140 t4 : ffffffff80159674 t5 : 1fe400000040f028 t6 : ff6000000f44c1b8 status: 0000000200000100 badaddr: ff20000002077f60 cause: 000000000000000f Kernel panic - not syncing: Kernel stack overflow CPU: 1 PID: 5612 Comm: kworker/1:4 Not tainted 6.7.0-rc1-syzkaller-g3b5c14361d61 #0 Hardware name: riscv-virtio,qemu (DT) Workqueue: usb_hub_wq hub_event Call Trace: [] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:121 [] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:127 [] __dump_stack lib/dump_stack.c:88 [inline] [] dump_stack_lvl+0xe8/0x154 lib/dump_stack.c:106 [] dump_stack+0x1c/0x24 lib/dump_stack.c:113 [] panic+0x2ae/0x67a kernel/panic.c:344 [] walk_stackframe+0x0/0x2f2 arch/riscv/kernel/traps.c:412 [] mark_usage kernel/locking/lockdep.c:4586 [inline] [] __lock_acquire+0xd3e/0x310a kernel/locking/lockdep.c:5090 SMP: stopping secondary CPUs Rebooting in 86400 seconds.. --- 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