linux-kernel - [2.6.37-rc1] drm:i195 errors

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Message-ID: <20101102155813.09cb2c6e@tux.DEF.witbe.net>
Date:	Tue, 2 Nov 2010 15:58:13 +0100
From:	Paul Rolland (ポール・ロラン) 
	<rol@...be.net>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	rol@...be.net
Subject: [2.6.37-rc1] drm:i195 errors

Hello,

I was previously running 2.6.36, without noticing any messages related to
i915/DRM, but now I can see some :

Nov  2 14:21:53 tux kernel: [drm:i915_gem_mmap_gtt_ioctl] *ERROR* Attempting to mmap a purgeable buffer

and also :

Nov  2 15:45:35 tux kernel: [drm:intel_panel_get_max_backlight] *ERROR* fixme: max PWM is zero.

They seem to appear randomly, without any (yet) identified link to some
activity I can have on the machine.

The lspci output is :
[root@tux ~]# lspci -s 00:02.0 -vvv
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA controller])
        Subsystem: Dell Device 02bc
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 40
        Region 0: Memory at f6800000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 1800 [size=8]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
                Address: fee0100c  Data: 4159
        Capabilities: [d0] Power Management version 3
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: i915

Regards,
Paul
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