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    SubjectRe: iwl3945 didn't survive after s2ram failure
    And of course I forgot to attach logs...

    On Thu 05-01-12 15:19:13, Michal Hocko wrote:
    > On Thu 05-01-12 12:07:45, Stanislaw Gruszka wrote:
    > [...]
    > > Only interesting thing we do while resume in the driver is:
    > > pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
    > > we do the same during erly stage of .probe function too.
    > >
    > > In the RH bugzilla case, it was regression. There are no iwlegacy
    > > changes between mentioned kernel versions. There are some APCI and pci
    > > changes. Can you try if any of these kernel boot parameters helps:
    > > pcie_aspm=off
    > > pcie_aspm=force
    > > pci=nocsr
    > > pci=use_csr
    >
    > OK, so I have tried to boot with pcie_aspm=off and the wireless
    > resurrect. The I found out that I booted into 3.2 rather than 3.2-rc6 so
    > I retested with the original kernel and guess what, yes it reported the
    > same problem as before (with or without parameter).
    > So I have tried to retest with few kernels (3.2.0-rc5,
    > 3.2.0-rc6-00005-ga36bfdd, 3.2.0-rc7-00083-g115e8e7 and 3.2.0) that I
    > still had on my machine and 3.2.0-rc6-00005-ga36bfdd seems to be the
    > only affected one.
    > There doesn't seem to be any obvious difference wrt. the driver in the
    > logs (attached).
    >
    > Looking in the history it seems that 497f16f2 [pci: Fix hotplug of
    > Express Module with pci bridges] might be related. It fixes an issue
    > introduced by bbef98ab [PCI: defer enablement of SRIOV BARS] which is a
    > part of my 3.2.0-rc6-00005-ga36bfdd problematic version. But I do not
    > understand details of the patch so I cannot tell that for 100%.
    > Yinghai Lu, is it possible that I the problem I have seen is somehow
    > related? For reference the thread started at
    > https://lkml.org/lkml/2011/12/27/65
    >
    > Thanks
    > --
    > Michal Hocko
    > SUSE Labs
    > SUSE LINUX s.r.o.
    > Lihovarska 1060/12
    > 190 00 Praha 9
    > Czech Republic

    --
    Michal Hocko
    SUSE Labs
    SUSE LINUX s.r.o.
    Lihovarska 1060/12
    190 00 Praha 9
    Czech Republic
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