From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Date: Thu, 05 Dec 2019 13:38:01 +0000 Subject: Re: INFO: task hung in fb_open Message-Id: <000000000000bcf3bc0598f5090d@google.com> List-Id: In-Reply-To: <0000000000006dff110598d25a9b@google.com> References: <0000000000006dff110598d25a9b@google.com> In-Reply-To: <0000000000006dff110598d25a9b@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: airlied@linux.ie, ayan.halder@arm.com, b.zolnierkie@samsung.com, daniel.vetter@ffwll.ch, dri-devel@lists.freedesktop.org, kraxel@redhat.com, linux-arm-kernel@lists.infradead.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, maarten.lankhorst@linux.intel.com, maxime.ripard@bootlin.com, peda@axentia.se, sam@ravnborg.org, syzkaller-bugs@googlegroups.com, ville.syrjala@linux.intel.com, wens@csie.org syzbot has bisected this bug to: commit 979c11ef39cee79d6f556091a357890962be2580 Author: Ayan Kumar Halder Date: Tue Jul 17 17:13:46 2018 +0000 drm/sun4i: Substitute sun4i_backend_format_is_yuv() with format->is_yuv bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15d2f97ee00000 start commit: 596cf45c Merge branch 'akpm' (patches from Andrew) git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13d2f97ee00000 kernel config: https://syzkaller.appspot.com/x/.config?x}8ab2e0e09c2a82 dashboard link: https://syzkaller.appspot.com/bug?extid=A4ae1442ccc637162dc1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14273edae00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15e7677ae00000 Reported-by: syzbot+a4ae1442ccc637162dc1@syzkaller.appspotmail.com Fixes: 979c11ef39ce ("drm/sun4i: Substitute sun4i_backend_format_is_yuv() = with format->is_yuv") For information about bisection process see: https://goo.gl/tpsmEJ#bisection