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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 48029] httpd-2.2.14 hangs in port_getn
Date Tue, 27 Oct 2009 18:52:22 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=48029

--- Comment #16 from Jan Schmidt <httpd.apache@jan-o-sch.net> 2009-10-27 11:52:14 UTC
---
> A little background:

Thanks for that part!

> Manwhile, I found a better solution besides disabling Event Ports which I've
> committed.  This is it:
> 
> http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/poll/unix/port.c?r1=807269&r2=829803

Works! Seems we're on track now. However...

> >However, I cannot reproduce your useport example on any of the machines I use
> >to trigger the buggy behavior here. Can you prove it returns correct values
> >when trussed? If no, that should be a completely different issue - if yes, it
> >might be related, though.
> 
> You get "rc 0 nget 0" displayed on a machine with the problem?  Ouch.

... yes. That is still the case. But as the fix you committed works, there must
be some strange condition sometimes making port_getn return those negative
values aside from -1.

Had no time to play around with dtrace, yet. But it seems quite obvious it
would show port_getn returning a strange value as does your example (though not
reproducible here).

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