Re: ENOSR on UDP socket creation on Solaris 10 U4

In article <72myus7lio.fsf@xxxxxxxxxxxxxxxxxxx>,
Alex Kiernan <alex.kiernan@xxxxxxxx> writes:
Anyone any ideas where/what to tweak to avoid getting ENOSR in
response to a SOCK_DGRAM socket create?

We're running PowerDNS recursor and are seeing occasional (once a
day?) errors:

startDoResolve problem: Making a socket for resolver: Out of stream resources

Which traces back to:

socket(PF_INET, SOCK_DGRAM, 0);

A quick (and inadequate) browse of the opensolaris source would
seem to imply this happens if sockfs times out the initial
response from the udp module, when it's asking for the
capabilities of the stream. A comment elsewhere implies this
can happen for tcp streams under system heavy load conditions.
It may be that the same is true for udp too. Could your system
be under heavy load?

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
.

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