[openfabrics-ewg] Re: [openib-general] Re: NOP problem in ib_mthca on OFED RC4

[Roland Dreier]

    Don> It is rather difficult for me to debug this sort of hang,
    Don> since I telecommute from Tucson and the machines are located
    Don> in Phoenix.  Anyone have any suggestions?

cat /proc/<pid>/wchan for the process in question.  "echo t > /proc/sysrq-trigger"
will produce copious output that might help as well.

 - R.