From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) (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 12B8B2030A for ; Tue, 24 Dec 2024 13:29:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.208 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735046966; cv=none; b=mQw6+bMUz59NAra+2AZ1mkb2qgk4PEgJv/Daas+hE3ksJBXUy0JD1WhWCbWo1UeznyyJzl9PhCRfKM8M9w5xu7bGRPusyLRlUrlOrR4FEJDbJm723ekToGzXa9EGnPJGVvVZOVl7K47BKAYbnJl0XTaTL9blw2RufuIeG6lRGkg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735046966; c=relaxed/simple; bh=dgKn39CHHN1qa5cMs5RJmBK6yn0F0t5dVhH3mLAhNN4=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=H+M9JKyThqqyLo8BLJWjF2xw8rKrvUQyd3qdZVbw8fPhlJwRU3ys3Z9baxS44MbR+bJxXc9H0DSRsZtBF52Vd71CEsN0c+Ny1Qjs6jo+swKaiSeYoJcmorvAar0YO5Pr97sGiNg42uyhtBoHFNE7krgGCb85wJAQZUk2d8kUAak= 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=209.85.166.208 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-f208.google.com with SMTP id e9e14a558f8ab-3a81684bac0so100316745ab.0 for ; Tue, 24 Dec 2024 05:29:24 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735046964; x=1735651764; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=joN0KPLwXg0lKzdtgFmFPMIleacQ5Yi3OyPPGpTfGZQ=; b=cy5nfeXYfB8bt29KKKzgmCuP2b6+iIR+T2mw7Hh00SoBrAAhk1BZ8AMjKeL/Lw98Cx BVBXNmEXXZA4y9ZAQfNBxNnd4T8Ku/RcrI25mJzbDwjSr82Qglej5Gqnnzmg48tkZbqQ RnzHGYw+R8mv8AWqeXGnJRE1ejGA4gSp2z0aN0CP86Rs22WFov4mQMq6Vitucv/o5jZ6 zb86kPnme3VmDvy69jot7tIRorzfHk0mJad5xW//nhkUFARgXjviD9UFpa0QKfw9PyTU eUJnBpB0BR/LCH8r6Loh3TBlyOnLTrhkM5xSIMdsJv45sumgzKxKu6M1au+YD2U3Jjt/ pStA== X-Forwarded-Encrypted: i=1; AJvYcCVcPeFIkqd/RYf/inN5BlxFLB3SHocKjRwprpVN7/MxxBBn3dpG63nZsEqwvIKunodqVaRiEqeKNWk9lD8=@vger.kernel.org X-Gm-Message-State: AOJu0Yyh/ipyYlt8B4emCLlSXXam4DB71p2DWDO5EjIYg4iXvIIgOozL XuI5LF2Mi2Kpo4RACgqVMpf1sDUiOHwRyG6T/ZZOF5N1XAhCViNB+6yknQr4HiyY+s2dosjNSCX NuiYQs0zCYbI9uT4IQ78v+Wpbp+tGPTlu9tW1+v4ms5c/mteIxabfyqc= X-Google-Smtp-Source: AGHT+IFYO5lma8t/EjLTu0ZvEn/g2R0zqWfT+klBZ3nqJ9tSC6uo4NrUfPo9+wBBuOvDd701e/I4x4CO0dehk3Bz6hhv55W2EoCz Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3dc9:b0:3a7:c5ff:e5e2 with SMTP id e9e14a558f8ab-3c2cca3e450mr134830085ab.0.1735046964257; Tue, 24 Dec 2024 05:29:24 -0800 (PST) Date: Tue, 24 Dec 2024 05:29:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <676ab734.050a0220.2f3838.01af.GAE@google.com> Subject: [syzbot] [riscv?] kernel panic: Kernel stack overflow (3) 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: 21f1b85c8912 riscv: mm: Do not call pmd dtor on vmemmap pa.. 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=14d32adf980000 kernel config: https://syzkaller.appspot.com/x/.config?x=90afd41d36b4291d dashboard link: https://syzkaller.appspot.com/bug?extid=f694b8c2ba2919587a3d 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-21f1b85c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/69f16f8d759e/vmlinux-21f1b85c.xz kernel image: https://storage.googleapis.com/syzbot-assets/1e170e1b7a02/Image-21f1b85c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f694b8c2ba2919587a3d@syzkaller.appspotmail.com s11: ff6000001cefcec0 t3 : ff6000001cefd9e0 t4 : 1fec0000039dfb3b t5 : 1fec0000039dfba9 t6 : 0000000000000015 status: 0000000200000100 badaddr: ff20000005acff40 cause: 000000000000000f Kernel panic - not syncing: Kernel stack overflow CPU: 0 UID: 0 PID: 11449 Comm: syz.2.1759 Not tainted 6.13.0-rc2-syzkaller-g21f1b85c8912 #0 Hardware name: riscv-virtio,qemu (DT) Call Trace: [] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130 [] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:136 [] __dump_stack lib/dump_stack.c:94 [inline] [] dump_stack_lvl+0x110/0x1a6 lib/dump_stack.c:120 [] dump_stack+0x1c/0x24 lib/dump_stack.c:129 [] panic+0x38c/0x86e kernel/panic.c:354 [] handle_bad_stack+0xd4/0xfc arch/riscv/kernel/traps.c:427 [] mark_usage kernel/locking/lockdep.c:4658 [inline] [] __lock_acquire+0xaa6/0x8594 kernel/locking/lockdep.c:5180 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