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=-8.7 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=unavailable 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 028BEC4338F for ; Fri, 20 Aug 2021 15:47:30 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C5E72610CA for ; Fri, 20 Aug 2021 15:47:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C5E72610CA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 04C186EAB1; Fri, 20 Aug 2021 15:47:18 +0000 (UTC) Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5ADF06EAAC for ; Fri, 20 Aug 2021 15:45:08 +0000 (UTC) Received: by mail-il1-f200.google.com with SMTP id o12-20020a92dacc000000b00224baf7b16fso4612962ilq.12 for ; Fri, 20 Aug 2021 08:45:08 -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:in-reply-to:message-id:subject :from:to; bh=C/764d47f9BqIhAgXfMN7s6wRczQbgVQBUoxA/nuXAk=; b=UIKG155wVxIbzf3ixyLOB/GzxklQ1ekya0WpA1vmcVwtEgODKYt0n2wK87BvmJnR7t 2ybC4F08EYEDY8XhMhZDp14FEiKAFgYri+Lyx4HA7PJzOmHWEwjOdElBXygtSd90wGZV Oxl12wETN2S8v1dT+56gfnOtzL87LuYq6PVXibZqM1C0p9oizv2+UGG5cNvf2YNc10I5 yGT4tjftp342hZl+bCiQlxQ25Cpk+bV9ArwAUNfM3Bo5/CD1i97WOYb2tWNayorlOdgC KzScTnAozem9tsfzr5aNYh8+hcPFSDe8KZGDLQ5DoC7Afd9DcVqCG6iklOtd8gzgkRap LIpg== X-Gm-Message-State: AOAM5328sIdNuhpwXFloLgdWClyvZIrpEJQ/e1Cft0oX9VstwrnUe3IC 5sy2+/Vmx7TbN1JgNhPoPYsK6YBe26mpgbgZlCgXelqapUog X-Google-Smtp-Source: ABdhPJyIdR2IpSoaS+ZJXlVx5Fzsmf7Slk+cMg4U2DAEwIy+JEtW6jamlvFI5GIp6I8WEWSshVAwBFPRLSFLcMM3VHUgcDZ7hNq0 MIME-Version: 1.0 X-Received: by 2002:a92:dd82:: with SMTP id g2mr14479298iln.279.1629474307681; Fri, 20 Aug 2021 08:45:07 -0700 (PDT) Date: Fri, 20 Aug 2021 08:45:07 -0700 In-Reply-To: <0000000000008a7a1c05c9e53c87@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000047b52b05c9ff8d0b@google.com> Subject: Re: [syzbot] WARNING in drm_gem_shmem_vm_open From: syzbot To: airlied@linux.ie, christian.koenig@amd.com, daniel.vetter@ffwll.ch, daniel.vetter@intel.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linaro-mm-sig-owner@lists.linaro.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, maarten.lankhorst@linux.intel.com, melissa.srw@gmail.com, mripard@kernel.org, sumit.semwal@linaro.org, syzkaller-bugs@googlegroups.com, tzimmermann@suse.de Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Fri, 20 Aug 2021 15:47:16 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" syzbot has bisected this issue to: commit ea40d7857d5250e5400f38c69ef9e17321e9c4a2 Author: Daniel Vetter Date: Fri Oct 9 23:21:56 2020 +0000 drm/vkms: fbdev emulation support bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11c31d55300000 start commit: 614cb2751d31 Merge tag 'trace-v5.14-rc6' of git://git.kern.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=13c31d55300000 console output: https://syzkaller.appspot.com/x/log.txt?x=15c31d55300000 kernel config: https://syzkaller.appspot.com/x/.config?x=96f0602203250753 dashboard link: https://syzkaller.appspot.com/bug?extid=91525b2bd4b5dff71619 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=122bce0e300000 Reported-by: syzbot+91525b2bd4b5dff71619@syzkaller.appspotmail.com Fixes: ea40d7857d52 ("drm/vkms: fbdev emulation support") For information about bisection process see: https://goo.gl/tpsmEJ#bisection