Messages in this thread Patch in this message |  | | | Date | Wed, 20 Jun 2007 09:15:21 +0800 | | From | Wang Zhenyu <> | | Subject | Re: 2.6.22-rc5 regression |
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On 2007.06.20 01:37:16 +0000, Carlo Wood wrote: > The result of this patch is that the kernel starts to print > "agpgart: Detected an Intel 965G Chipset." again with the usual > disastrous results. Now, that doesn't mean that this patch is > wrong - but it explains why the problem returns after this patch.
Yep, the device table patch doesn't change any function, so your problem started from when 965G support patch has been in kernel.
Carlo, pls try a kernel param of "pci=nommconf" to see if that could fix your hang. There might be a BIOS bug, as similar issue also happen like https://bugzilla.novell.com/show_bug.cgi?id=228683
I think for i965 we could have following patch to fix this, we may fail if no IGD device got detected.
Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com> --- diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 0439ee9..5a54a9c 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -1855,15 +1855,15 @@ static const struct intel_driver_description { { PCI_DEVICE_ID_INTEL_82946GZ_HB, PCI_DEVICE_ID_INTEL_82946GZ_IG, 0, "946GZ", &intel_845_driver, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965G_1_HB, PCI_DEVICE_ID_INTEL_82965G_1_IG, 0, "965G", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965Q_HB, PCI_DEVICE_ID_INTEL_82965Q_IG, 0, "965Q", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965G_HB, PCI_DEVICE_ID_INTEL_82965G_IG, 0, "965G", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GM_IG, 1, "965GM", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GME_IG, 0, "965GME/GLE", - &intel_845_driver, &intel_i965_driver }, + NULL, &intel_i965_driver }, { PCI_DEVICE_ID_INTEL_7505_0, 0, 0, "E7505", &intel_7505_driver, NULL }, { PCI_DEVICE_ID_INTEL_7205_0, 0, 0, "E7205", &intel_7505_driver, NULL }, { PCI_DEVICE_ID_INTEL_G33_HB, PCI_DEVICE_ID_INTEL_G33_IG, 0, "G33", @@ -1917,6 +1917,7 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev, } if (bridge->driver == NULL) { + /* The bridge has no AGP or no gfx device */ printk(KERN_WARNING PFX "Failed to find bridge device " "(chip_id: %04x)\n", intel_agp_chipsets[i].gmch_chip_id); agp_put_bridge(bridge); --- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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