:I'm playing with a third party kernel module under 4.0.
:
:Occasionally the box locks up during extended access to the device it
:supports, though the box will respond to pings and other hardware driven
:interupts, but will not let loggins happen, and open telnet sessions from
:remote hosts freeze. I'm guessing an spltty isn't being freed. What's
:the best way to go about figuring out what function isn't freeing the lock
:or returning?
:
:Thanks for any help,
:
:Joe Orthoefer
Enable DDB in the kernel config and when the machine locks up, assuming
you aren't running X on the console (or if you are that you can
ctl-alt-F? to get back to the a character screen), type ctl-alt-esc
to get the DDB prompt. Then do a 'ps' to see what things are hanging
on.
It probably isn't an spl*() issue.
-Matt
Matthew Dillon
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