From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E296C636CC for ; Thu, 16 Feb 2023 15:14:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229532AbjBPPOm (ORCPT ); Thu, 16 Feb 2023 10:14:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229804AbjBPPOk (ORCPT ); Thu, 16 Feb 2023 10:14:40 -0500 Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71EBA3BDB4 for ; Thu, 16 Feb 2023 07:14:39 -0800 (PST) Received: by mail-lf1-x132.google.com with SMTP id bi36so3164771lfb.8 for ; Thu, 16 Feb 2023 07:14:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=kC8IDsKp/YgrN85NE+XVA1BnM3bDS0BQfGSyhvUIGb4=; b=RZpUIpKFzUdmqjbZEMGiiB9Kufmm/dFDN2TU8vniw04SUdpU2Z6r+ww/QT3sA3i4mx TFgzFODxvLWzZKKt5JtfxuhWvgUN6EGlm1jQzuBnrOYuuOzoWWQ+Mj1WwFMaUOHEuTPW vjd4sqEpAeraD6hMOAySj3w/dQ7jyStzxVIURNovpYg7ag3ZszfejCwxgJ47e0neaWtj YwJKTi5rHjPeU8O0Qc+pI4Hp+hszkuFU4FXS17qIAS97EBvVh5bmEt8SQYf6M8ewgTRy ZXSy9DTIWZGiXz6GFnhAgcJDZIjpW1dEHNjYwH/SUphHvO5Fqm2SI6LLqNInSXx26jTq gqIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=kC8IDsKp/YgrN85NE+XVA1BnM3bDS0BQfGSyhvUIGb4=; b=y4RyQ/4kOsga3q+HWn2F+UI/7ho28tWvCvRLj8qnhL0PMVHyOis23ClH6JCDh7c/tS BFKC0LgzDvarZhwwHTmVg9JgKkxIMS6wcqRfWi3eFM4XFoGwu7j/SkNi0RGGPWugcsFL DNpcXmeJi8wGzzGBMqr8ezqCBtuulWZ8PZQyy1a01uetlCWPy17w+jQUmticd1QbBoPw bzvTOUol0EcFp4CQuUPT4n7sCy2yHu+q1EwZeR3P6J+hSULajtoJ9999mdaoZOY/hkqy chZ66mveFZWFfPCq2VPgOClbyego89HKo/GUOgpaooundCeNRj7QtfxQrLq7/WNxoc59 NYyg== X-Gm-Message-State: AO0yUKVgZemBSGpl0A3CwcgaI6OSe/fPZoolUx/BXI4hn0zB2d8QBM2e TbYYEzxzeu0zzPMNhr0pqG929Muew350P4JaWR3f2A== X-Google-Smtp-Source: AK7set+iSv+zZT0G6BTVkJ9rolzRwC/x6vvKNsH0/+uVnumcSPc+9wePCbMk+0milETGFHZln9wo7vhWTMppJuHUIr0= X-Received: by 2002:ac2:5dd4:0:b0:4d5:ca42:e43a with SMTP id x20-20020ac25dd4000000b004d5ca42e43amr1751761lfq.3.1676560477452; Thu, 16 Feb 2023 07:14:37 -0800 (PST) MIME-Version: 1.0 References: <000000000000ff304105f4d1cd36@google.com> In-Reply-To: <000000000000ff304105f4d1cd36@google.com> From: Dmitry Vyukov Date: Thu, 16 Feb 2023 16:14:25 +0100 Message-ID: Subject: Re: [syzbot] WARNING: can't access registers at entry_SYSCALL_64_after_hwframe To: syzbot , Josh Poimboeuf , Ingo Molnar Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 16 Feb 2023 at 15:13, syzbot wrote: > > Hello, > > syzbot found the following issue on: > > HEAD commit: 9d9019bcea1a Add linux-next specific files for 20230215 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=144edcc8c80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=a64cbb8ad0da425e > dashboard link: https://syzkaller.appspot.com/bug?extid=dac365e3ce07c3d0e496 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/70f0c6bb5351/disk-9d9019bc.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/7eed8686df34/vmlinux-9d9019bc.xz > kernel image: https://storage.googleapis.com/syzbot-assets/84bb6da6b00e/bzImage-9d9019bc.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+dac365e3ce07c3d0e496@syzkaller.appspotmail.com > > WARNING: can't access registers at entry_SYSCALL_64_after_hwframe+0x63/0xcd This is another splat of reports we started getting recently. Looks like this may be ORC unwinder related as well.