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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 3D64AC43381 for ; Mon, 11 Mar 2019 12:05:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 12EDD2075C for ; Mon, 11 Mar 2019 12:05:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727383AbfCKMFC (ORCPT ); Mon, 11 Mar 2019 08:05:02 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:44080 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726592AbfCKMFC (ORCPT ); Mon, 11 Mar 2019 08:05:02 -0400 Received: by mail-io1-f72.google.com with SMTP id c2so3922015ioh.11 for ; Mon, 11 Mar 2019 05:05:01 -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=5SguhSjRaBeKASDnq4NS1UTdP8TVYxXJzl38J97xMJM=; b=POB2yHsQ3KJHkFV4VL3OBs8CRl7dNNbt7EOUX9Da9suhTzUsCMx6kUoTFNfZK2a9vA m/8siI4dbuT1SaxazV/m5W3b7kkjXTKVJ1mUMYob54LwoYg0gngN1lX40tKG/Td4aaPc tHEGgpoXRvtRtiztQpty0Uk/aOM8DkRAIiHv+gy59pIDXzS5ZorcIb2qpkxW/91auJSm Y7hhj1UXeiAItUDa4Ue1rF7qmqflKVPDB7LqMC5bCu7g7deUMBDYjstFdAjk5wEJfGkC v73VbMHhPZMes0o6AVqYk1tVVukWnvfSKW/tGmNY+V7J17iP0iSA7mZrdkKzYckNJ6g2 Hncg== X-Gm-Message-State: APjAAAUaPqCxjPb6J87/eTqqLTPM1Dl04ExJmXDxluYVnoOdFuMxD13j j9koOhBqBHQYa6AMO1v3iXiJpu1la+6IBj65mAG4eiEsBnJK X-Google-Smtp-Source: APXvYqxAgg4CY/6X+NYFcNCjALwOra4mKDAR8vW6tOKXWLXyDKBMNOujUhu8EY1e1csGLq3vLQLtxvBWW/7fEkCcjga1BcFP1/t8 MIME-Version: 1.0 X-Received: by 2002:a24:5e94:: with SMTP id h142mr20081820itb.35.1552305901110; Mon, 11 Mar 2019 05:05:01 -0700 (PDT) Date: Mon, 11 Mar 2019 05:05:01 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d18aec0583d061b7@google.com> Subject: WARNING in vkms_vblank_simulate From: syzbot To: airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, hamohammed.sa@gmail.com, linux-kernel@vger.kernel.org, rodrigosiqueiramelo@gmail.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 09ef09b4ab95dc405ad4171ec2cd8a4ff5227108 Author: Shayenne Moura Date: Wed Feb 6 20:08:13 2019 +0000 drm/vkms: WARN when hrtimer_forward_now fails bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=128448cf200000 start commit: 09ef09b4 drm/vkms: WARN when hrtimer_forward_now fails git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=118448cf200000 console output: https://syzkaller.appspot.com/x/log.txt?x=168448cf200000 kernel config: https://syzkaller.appspot.com/x/.config?x=c1e0e0ec44d1e5ff dashboard link: https://syzkaller.appspot.com/bug?extid=0871b14ca2e2fb64f6e3 userspace arch: amd64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1787db8d200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17fc9883200000 Reported-by: syzbot+0871b14ca2e2fb64f6e3@syzkaller.appspotmail.com Fixes: 09ef09b4 ("drm/vkms: WARN when hrtimer_forward_now fails")