- To: Daniel Pittman <daniel@xxxxxxxxxxxx>
- Subject: Re: [SLUG] Apps hanging when writing to /dev/log
- From: Jeremy Visser <jeremy.visser@xxxxxxxxx>
- Date: Wed, 4 Feb 2009 20:39:14 +1100
- Cc: slug@xxxxxxxxxxx
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On 02/02/2009, at 11:56 AM, Daniel Pittman wrote:
That should let you see which syscalls were delaying the process,
and so
narrow it down to a specific set of options...
Did you read my post 30/01/09 7:14PM? It was basically a running
commentary of it, as I was watching the strace, not just logging it to
a file.
The actual syslogd daemon did not appear to be locked up. It didn't
even hang when I sent a normal HUP to it -- it quits cleanly.
Just the socket communication between apps and /dev/log seems to be
hanging (though killing syslogd stops the hanging).
As for the actual apps that hang as a result of the dead
communication, they hang on send(), when writing the log message.
It's strange that they hang on send(). connect('/dev/log'), which is
what I'd expect them to hang on, returns instantly.
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