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 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 A02B3C43381 for ; Mon, 11 Mar 2019 12:28:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7B2F82084F for ; Mon, 11 Mar 2019 12:28:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727405AbfCKM2C (ORCPT ); Mon, 11 Mar 2019 08:28:02 -0400 Received: from mail-it1-f199.google.com ([209.85.166.199]:37056 "EHLO mail-it1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725943AbfCKM2B (ORCPT ); Mon, 11 Mar 2019 08:28:01 -0400 Received: by mail-it1-f199.google.com with SMTP id q141so4901515itc.2 for ; Mon, 11 Mar 2019 05:28:01 -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=K5vET+hC9E1ONoL2Bh+IVR5OI3SMTOMr1+zmF3e2bVfhpQx4/ekAnBwphmvHJrxwMz 48ojZkhCxZjbsJw7WnndjwNoVOYZzeiOubhG2t9+VA5IAX1FDpxDIfCAW3dbRrzEn7Za xJe8Ke1SRNayCJPPzAlSNLas15BKGH/LGL0paAlZm0vHwgNHH0QCWQ8MTqY981atnX9l SoTWShqpmbObJD6XNJZvLZp4FruMvVywv8b/0jEuZgW+eNZ8UjO31moN9VYVN5QXNWNa 9P5HnfRShhs2ZCpvxtCpWLOM7/y71zu47BV4CXmQE8mdrZXBU29D6zJ9nojqY6QV/Xgi 4vMw== X-Gm-Message-State: APjAAAVHPgKlDCOg13iw7LJTFnggk7IRvkh3Nh9o6CbEF7JV43yHF7iM BeG/Kv3d2n0AuXXybR174qsR795prMmbUw/eQQ6+fDD+YAFG X-Google-Smtp-Source: APXvYqw/mjS82d4F16fxA/hfkteK0jWmS9MPkDnJp0ehJLFJa1wXHzDXluYmwFvIT4GfrvoITnzXDfbMBNjVM9JJMBspey1DWWL6 MIME-Version: 1.0 X-Received: by 2002:a02:3b19:: with SMTP id c25mr19045903jaa.0.1552307281061; Mon, 11 Mar 2019 05:28:01 -0700 (PDT) Date: Mon, 11 Mar 2019 05:28:01 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000011f13c0583d0b48c@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")