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    SubjectRe: [BUG] linux-2.6.28-rc3 regression: IRQ smp_affinities not respected
    Eric Dumazet a écrit :
    > Michael Chan a écrit :
    >> I believe this may be the patch that broke it:
    >>
    >> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ce6fce4295ba727b36fdc73040e444bd1aae64cd
    >>
    >>
    >> I don't remember all the details, but the Broadcom 5708 chip is
    >> affected because it does not support MSI per-vector masking.
    >>
    >> One way to get around is to disable MSI with bnx2 parameter
    >> disable_msi=1.
    >>

    >
    > I tried this MSI disabling and yes, it now works.
    >
    > 16: 42726 128 105 106 89
    > 89 145 152 IO-APIC-fasteoi uhci_hcd:usb1, eth0, eth1
    >

    I believe the bnx2 driver doesnt work at all if !disable_msi (default setting)

    Doing a "echo 0 >/sys/devices/system/cpu/cpu1/online" just freeze network

    No messages logged

    If loaded with disable_msi=1, the cpu unplug works as expected.

    Thats a pretty serious issue.


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