Messages in this thread | | | Date | Thu, 15 Jun 2006 15:35:25 +0100 | From | Barry Scott <> | Subject | Re: 2.6.17-rc6 does not boot on HP dc7600u - MCFG area is not E820-reserved |
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Barry Scott wrote: > I'm trying to boot 2.6.17-rc6 with Mismatched section patches applied. > > On my HP dc7600U the last messages printed are: > > PCI: BUIS Bug: MCFG area is not E820-reserved > PCI: Not using MMCONFIG > > Googling I found a message about a IBM laptop reporting this message > but that it did go on to boot. THere was a suggestion that the test > should be > removed. I commented out the code and I can boot further. > > Here is the code I patched. > > --- arch/i386/pci/mmconfig.c~ 2006-06-15 13:04:58.000000000 +0100 > +++ arch/i386/pci/mmconfig.c 2006-06-15 13:04:58.000000000 +0100 > @@ -194,17 +194,19 @@ > if ((pci_mmcfg_config_num == 0) || > (pci_mmcfg_config == NULL) || > (pci_mmcfg_config[0].base_address == 0)) > return; > > +/* qqq > if (!e820_all_mapped(pci_mmcfg_config[0].base_address, > pci_mmcfg_config[0].base_address + > MMCONFIG_APER_SIZE, > E820_RESERVED)) { > printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not > E820-reserved\n"); > printk(KERN_ERR "PCI: Not using MMCONFIG.\n"); > return; > } > +qqq */ > > printk(KERN_INFO "PCI: Using MMCONFIG\n"); > raw_pci_ops = &pci_mmcfg; > pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; > > Barry > > - > 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/ Chuck Ebbert's MMCONFIG patch fixes this problem for me.
Barry
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