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    SubjectRe: [PATCH 3/3] net: wireless: bcm43xx: big_buffer_sem semaphore to mutex
    On Dec 14, 2007 12:13 PM, Michael Buesch <mb@bu3sch.de> wrote:
    > Ray, I _do_ want to understand what is going on in your machine.
    > I _have_ to understand it. But I currently do not understand how the
    > quoted patch could fix modprobe of b43 or rfkill. I'd simply call that
    > impossible.

    Then perhaps it is. Perhaps it's a race condition in my userspace
    where something NetworkManager related is trying to up the interface,
    I don't know. More below.

    Regardless, I'm going to have to put off doing more debugging until
    tomorrow. I've rebooted back into 2.6.23.0 as wireshark doesn't show
    any packets using 2.6.24-rc3 (the version I've been testing), reported
    elsewhere, and that's preventing me from doing actual work with my
    system, as I'm in the middle of trying to enhance a network server for
    a client.

    Note, the wireshark issue is very much not a bcm43xx/b43 issue; I'm
    not trying to lay that at your feet.

    > So could you please try to reproduce the breakage by reverting that
    > patch again? Just to make really sure it is this patch fixing the issue
    > and not just some coincidence.

    I don't have the patch applied, so that's at least part of the
    misunderstanding here. All I have is my sequence of "load b43, ssb,
    nothing happens, unload them, load rfkill, rfkill-input, ssb, b43 and
    something happens." I could very well be wrong. But I'm at the limit
    of what I care to know about the b43 driver, and this is where I'm
    asking for your help.

    Hopefully tomorrow, I'll be able to build current tip and try this all
    again, and I'll also try to do it with NetworkManager killed in the
    background in case it was trying to bring the interfaces up behind my
    back.

    > Thanks for your help.

    Thanks for treating me like an adult.


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