linux-kernel - Regression in i915 driver in 3.16-rc2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.44L0.1406251358001.871-300000@iolanthe.rowland.org>
Date:	Wed, 25 Jun 2014 14:06:55 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Daniel Vetter <daniel@...ll.ch>
cc:	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Regression in i915 driver in 3.16-rc2

Daniel:

I encountered a new problem in the i915 driver the first time I booted 
a 3.16-rc kernel on this computer.  When it switched over to the frame 
buffer driver, the screen went blank and stayed that way.

3.15 works okay.

Attached are log extracts from 3.15 and 3.16 (both with drm.debug=0xe
in the boot command line).  The timestamps have been stripped out for
easy diff comparison.  These are the result of

	dmesg | egrep 'drm|i915|frame'

with a couple of irrelevant lines removed.  I can send the complete 
logs if you need them.

Alan Stern

View attachment "log-3.15.txt" of type "TEXT/plain" (10529 bytes)

View attachment "log-3.16.txt" of type "TEXT/plain" (5178 bytes)