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[23.128.96.18]) by mx.google.com with ESMTP id oz44si439359ejc.212.2021.08.20.08.49.13; Fri, 20 Aug 2021 08:49:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241157AbhHTPpq (ORCPT + 99 others); Fri, 20 Aug 2021 11:45:46 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:38608 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241140AbhHTPpp (ORCPT ); Fri, 20 Aug 2021 11:45:45 -0400 Received: by mail-il1-f199.google.com with SMTP id j6-20020a056e02014600b00224bde51e20so4231146ilr.5 for ; Fri, 20 Aug 2021 08:45:07 -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=nM8LAFd+i1AaOcOH6aMpoGnjiNbV0nGwqzYUGzz0IwY7Bm79mbgRVqd3LGs3KwQgCN h+PZ1FicM8XAaYPXfOCD0cR6lpVQD6/pt4r4s46N5q53mTdKvhxSQ8V91UEeCE4Lw22H p2/rHYMctm1AAUBlaVggYCyob/C8IrtiLZ1HeSaAOL8qTKYJvxpsUn9qvgw0mG9TJK9K iA6OCd8kg1VHTB/fMCfV/iarMZZvNTWKai8kRKR7CxvfB8tShRotbbNJ4qljrUuoAgT0 XAU4BLWQMsYY7yzZVRwrut6ZkfuiWpLR1230rUZBkqnAmSzATjFXEfJWE/949ZXm/uoO 3v0g== X-Gm-Message-State: AOAM530zxNAeGWf71yRUrN194ga+oNJvfhfX9kmh0BpwkDDEOv5O6Bi7 +3O9wmtqx7OIAXvVoR3JHMxrQgdXr/VntN11f1v8i0Lb0q+G 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" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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