[openib-general] NULL ptr derefence

[Roland Dreier]

    Grant> System panic'd when I ran the "reload_ib" script with NULL
    Grant> ptr.  Odd that I didn't see any problems with switching
    Grant> around module versions by hand before. Scripting it seems
    Grant> to have exposed more race conditions or something.

I think we've seen this before but I never tracked it down.  I'll take
another look.

    Grant> Sorry, I'm not sure which rev of openib code was running on
    Grant> this machine.  Is there some way I can tell what SVN
    Grant> version from the binaries in /lib/modules/'uname -r'
    Grant> directory?

Not really that I know of, unfortunately.

 - R.