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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D729C433E2 for ; Fri, 4 Sep 2020 13:09:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 10C30206F2 for ; Fri, 4 Sep 2020 13:09:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730397AbgIDNJx (ORCPT ); Fri, 4 Sep 2020 09:09:53 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:33526 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730331AbgIDNJU (ORCPT ); Fri, 4 Sep 2020 09:09:20 -0400 Received: by mail-io1-f72.google.com with SMTP id l22so4327076iol.0 for ; Fri, 04 Sep 2020 06:09:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=nQsXJ+2Sn0MGE1vR1zI3z182rgZanXd2F2eDcOAOPAE=; b=AnXBcwC2ArBW5yk0x0CFOtCgrrjB3Q2Cs8GkGvtq5kS9hHgzbF3KsjOdklsMQRmYSQ V+liCTQj+U0Ec9s0otaNaXLEFhlOQVDP9TPC9gisiC7RmEG4i1PyaupjXQM6r+vaabDp OfPy5ionb7xcXtkEcbJ2bErY2oxXRNixAff3J42ONF2vjgarL2/4yLKq7c+vGDeOgoSy ID8Gzc0BoRlQIlFnzaS+ymTOLno86OXcOjoOFD69GEgkVcBzHPr77Ma9e4WAwUeWBh7u X+oOqp9rjm/7kuuWNoakh0QcI2Ubp8Yb/wQLg9sIr6kSD68HeURtIt+DVb+5+3iMzAHf 3W8Q== X-Gm-Message-State: AOAM531QkhJ/ne0LEjmTlaW8hSbJj0aXPNQXVtEY8Dy+0o5sE8OZt3Fb tG0lor+161akC2zUBFiluSHtJynGLViIlDgCpQZG9CKb4ImW X-Google-Smtp-Source: ABdhPJxf8t7VNvzid2ouf5qVOPnpSDKMCVM8d0r7TIrVaIlBa9eEFM0Usf4AS/KJPZyjoztDdjY8EqP8DYsJeHYvCCAEl7iEHley MIME-Version: 1.0 X-Received: by 2002:a05:6638:76b:: with SMTP id y11mr8087182jad.29.1599224959482; Fri, 04 Sep 2020 06:09:19 -0700 (PDT) Date: Fri, 04 Sep 2020 06:09:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a03f8d05ae7c9371@google.com> Subject: WARNING: can't access registers at asm_sysvec_reschedule_ipi From: syzbot To: alexandre.chartre@oracle.com, bp@alien8.de, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: e28f0104 Merge tag 'fixes-2020-09-03' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10c43af9900000 kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f6ce8d5b68299 dashboard link: https://syzkaller.appspot.com/bug?extid=853f7009c5c271473926 compiler: gcc (GCC) 10.1.0-syz 20200507 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+853f7009c5c271473926@syzkaller.appspotmail.com WARNING: can't access registers at asm_sysvec_reschedule_ipi+0x12/0x20 arch/x86/include/asm/idtentry.h:586 --- 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.