On Mon, Jan 26, 2015 at 1:58 PM, Tony Luck <tony.luck@xxxxxxxxx> wrote: > I'm seeing these new messages in v3.19-rc6 on ia64: Hi Tony, Sorry for the inconvenience. Can you collect a complete dmesg log and "lspci -vv" output, too (from the kernel with the reverted commit)? That will have more useful information than just /proc/iomem. > pci 0000:01:00.0: can't claim BAR 6 [mem 0xfffe0000-0xffffffff pref]: > no compatible bridge window These are option ROMs, probably just not assigned. We should be able to assign space for them, so this might not even be a problem, but we certainly need a better message if that's all it is. > pci 0000:01:00.1: can't claim BAR 6 [mem 0xfffe0000-0xffffffff pref]: > no compatible bridge window > pci 0000:03:00.0: can't claim BAR 6 [mem 0xffe00000-0xffffffff pref]: > no compatible bridge window > pci 0000:0b:04.0: can't claim BAR 6 [mem 0xfffe0000-0xffffffff pref]: > no compatible bridge window > pci 0000:80:13.0: can't claim BAR 0 [mem 0xa0220000-0xa0220fff]: no > compatible bridge window Interesting. There's no mention of bus 80 at all in /proc/iomem; maybe this is found by blind probing? Do we even do that on ia64? Dmesg should have a clue. > pci 0000:80:16.0: can't claim BAR 0 [mem 0xa0200000-0xa0203fff 64bit]: > no compatible bridge window > pci 0000:80:16.1: can't claim BAR 0 [mem 0xa0204000-0xa0207fff 64bit]: > no compatible bridge window > pci 0000:80:16.2: can't claim BAR 0 [mem 0xa0208000-0xa020bfff 64bit]: > no compatible bridge window > pci 0000:80:16.3: can't claim BAR 0 [mem 0xa020c000-0xa020ffff 64bit]: > no compatible bridge window > pci 0000:80:16.4: can't claim BAR 0 [mem 0xa0210000-0xa0213fff 64bit]: > no compatible bridge window > pci 0000:80:16.5: can't claim BAR 0 [mem 0xa0214000-0xa0217fff 64bit]: > no compatible bridge window > pci 0000:80:16.6: can't claim BAR 0 [mem 0xa0218000-0xa021bfff 64bit]: > no compatible bridge window > pci 0000:80:16.7: can't claim BAR 0 [mem 0xa021c000-0xa021ffff 64bit]: > no compatible bridge window > pci 0000:80:01.0: can't claim BAR 8 [mem 0xa0100000-0xa01fffff]: no > compatible bridge window Looks like a bridge window (assuming you have CONFIG_PCI_IOV unset). There's definitely something wrong -- all those mpt and igb devices at the top level *should* be under some PCI hierarchy, but the hierarchy is missing from iomem. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
