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    SubjectRe: [PATCH 0/5 v2] PCI: fix cardbus and sriov regressions
    On Sat, Jul 02, 2011 at 12:07:48AM +0100, Ben Hutchings wrote:
    > On Thu, 2011-06-30 at 16:47 -0700, Ram Pai wrote:
    > > The following patch-set fixes regressions caused by:
    > >
    > > the commit "PCI: update bridge resources to get more big ranges when allocating space (again)"
    > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=da7822e5ad71ec9b745b412639f1e5e0ba795a20
    > >
    > > patch 1/5: fix calculation of additional resource size for hotplug bridges
    > > patch 2/5: ability to resize assigned pci-resource
    > > patch 3/5: make SRIOV BARs resources optional
    > > patch 4/5: make cardbus bridge resources optional
    > > patch 5/5: code and terminology cleanup
    > >
    > > The regression was caused on some platforms with limited i/o and memory
    > > resources, the optional resources were allocated ahead of required resources,
    > > thus starving the latter. The patchset ensures that all the required resources
    > > are satisfied before any optional resources are satisfied.
    >
    > This certainly fixes the problem I originally reported: all the basic
    > BARs for devices with SR-IOV enabled are mapped.
    >
    > When testing this, I noticed that a BAR which we fail to allocate space
    > for may be left configured with an address range that overlaps that of
    > other BARs. However, that does not appear to be a regression.

    overlaps the other SRIOV BARs of the same device?

    Can you send me the dmesg output?
    RP


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