linux-kernel - RE: [REGRESSION] Kernel 3.5 to 3.7-rc4 / GMA500 / DPMS sometimes crashes system

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Date:	Fri, 9 Nov 2012 14:28:08 +0000
From:	"Chini, Georg (HP App Services)" <georg.chini@...com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [REGRESSION] Kernel 3.5 to 3.7-rc4 / GMA500 / DPMS sometimes
 crashes system

Hello Alan,

> Hardware info would be helpful here but I suspect it may be a case of
> doing a set of test builds to identify the offending patch.

Board is an Intel Mini-ITX 2700MUD, Atom 2700 processor, GMA 3650. Lspci gives:

00:00.0 Host bridge: Intel Corporation Atom Processor D2xxx/N2xxx DRAM Controller (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor D2xxx/N2xxx Integrated Graphics Controller (rev 09)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02)
00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 02)
00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02)
00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02)
00:1d.7 USB controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation N10/ICH7 Family SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02)
01:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection

> Also anything in the log might be helpful including doing the runs with
> drm.debug=255 in the kernel command line to get full traces

See attached file. I removed the bit where I tested switching off/on for a while, there
is no additional information. When the error occurs I find following additional lines
in the log:

Nov  9 14:53:12 pico kernel: [drm:drm_crtc_helper_set_config],
Nov  9 14:53:12 pico kernel: [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:61] #connectors=1 (x y) (0 0)
Nov  9 14:53:12 pico kernel: [drm:drm_crtc_helper_set_config], [CONNECTOR:12:DVI-D-1] to [CRTC:3]
Nov  9 14:53:12 pico kernel: [drm:drm_crtc_helper_set_config],
Nov  9 14:53:12 pico kernel: [drm:drm_crtc_helper_set_config], [CRTC:4] [NOFB]

Do you need any more information?

Regards
       Georg  

Download attachment "drm.log" of type "application/octet-stream" (18889 bytes)