[dtrace-discuss] fbt:ip:tcp_xchg:entry does not exists

[James Carlson]

Chip Bennett writes:
> Being an fbt probe, and there has to be function of that name in the 
> kernel, what do you get from each system for:
> 
>      /usr/ccs/bin/nm /dev/ksyms | grep tcp_xchg

The symbol in question is still in Solaris and has been there for more
than five years.  It hasn't changed.

At a guess, I think this would have to be either a build problem
(we're still talking about Open Solaris, right?) with the compiler in
use, or perhaps something amiss with the way dtrace finds this symbol.

However, you do bring up a good point.  Undocumented kernel symbols
(like this one) are private interfaces, and may disappear at any time
without notice.

-- 
James Carlson, Solaris Networking              <james.d.carlson at sun.com>
Sun Microsystems / 1 Network Drive         71.232W   Vox +1 781 442 2084
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