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Date:	Sat, 09 Jun 2007 23:07:08 -0400
From:	John Richard Moser <nigelenki@...cast.net>
To:	linux-kernel@...r.kernel.org
Subject: via_drm bug

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This has been an on-going issue for.... I don't know how long.  I
reported it a while ago but it's still in 2.6.22.

Here's another error log.  Loaded the Via driver in Xorg with kernel
2.6.22 on Ubuntu, got the following in dmesg.  The [drm:via_mem_alloc]
error may be the problem.  This is on a 32-bit kernel.

See also:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-via/+bug/72630



[264565.164000] [drm] Initialized via 2.11.1 20070202 on minor 0
[264565.168000] ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level,
low) -> IRQ 21
[264565.168000] [drm] Initialized via 2.11.1 20070202 on minor 1
[264565.184000] agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.
[264565.184000] agpgart: Xorg tried to set rate=x12. Setting to AGP3 x8
mode.
[264565.184000] agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode
[264565.184000] agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode
[264565.192000] [drm:via_mem_alloc] *ERROR* Attempt to allocate from
uninitialized memory manager.
[264565.296000] powernow-k8: error - out of sync, fix 0x2 0xa, vid 0x0 0x0
[264565.296000] powernow-k8: ph2 null fid transition 0xa
[264565.692000] irq 21: nobody cared (try booting with the "irqpoll" option)
[264565.692000]  [<c015bcc4>] __report_bad_irq+0x24/0x80
[264565.692000]  [<c015bf82>] note_interrupt+0x262/0x2a0
[264565.692000]  [<c015b1e0>] handle_IRQ_event+0x30/0x60
[264565.692000]  [<c015c96b>] handle_fasteoi_irq+0xbb/0xf0
[264565.692000]  [<c0106b1b>] do_IRQ+0x3b/0x70
[264565.692000]  [<c0118735>] smp_apic_timer_interrupt+0x55/0x80
[264565.692000]  [<c0102e00>] default_idle+0x0/0x60
[264565.692000]  [<c0105223>] common_interrupt+0x23/0x30
[264565.692000]  [<c0102e00>] default_idle+0x0/0x60
[264565.692000]  [<c011db72>] native_safe_halt+0x2/0x10
[264565.692000]  [<c0102e3c>] default_idle+0x3c/0x60
[264565.692000]  [<c0102413>] cpu_idle+0x53/0xe0
[264565.692000]  [<c03dfa7f>] start_kernel+0x31f/0x3b0
[264565.692000]  [<c03df1f0>] unknown_bootoption+0x0/0x260
[264565.692000]  =======================
[264565.692000] handlers:
[264565.692000] [<f8eb6480>] (via_driver_irq_handler+0x0/0x1d0 [via])
[264565.692000] Disabling IRQ #21



Device:

01:00.0 VGA compatible controller: VIA Technologies, Inc. S3 Unichrome
Pro VGA Adapter (rev 01)


lshw segment:

           *-display
                description: VGA compatible controller
                product: S3 Unichrome Pro VGA Adapter
                vendor: VIA Technologies, Inc.
                physical id: 0
                bus info: pci@01:00.0
                version: 01
                size: 64MB
                width: 32 bits
                clock: 66MHz
                capabilities: vga bus_master cap_list
                configuration: latency=32 mingnt=2
                resources: iomemory:e4000000-e7ffffff
iomemory:e8000000-e8ffffff irq:21


- --
    We will enslave their women, eat their children and rape their
    cattle!
             -- Bosc, Evil alien overlord from the fifth dimension
LiveCD Creator Poll:  http://ubuntuforums.org/showthread.php?t=435562
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