Re: syslog() blocks on glibc 2.1.3 with kernel 2.2.x

From: Patrick J. LoPresti (patl@cag.lcs.mit.edu)
Date: Mon Oct 23 2000 - 14:28:58 EST


Ulrich Drepper <drepper@redhat.com> writes:

> If anything has to be changed it's (as suggested) the configuration
> or even the implementation of syslogd. Make it robust.

OK, but my current syslogd only listens to /dev/log as a SOCK_DGRAM.
If I wanted reliable syslogging, it would be listening on it as a
SOCK_STREAM. Maybe I care more about performance and backwards
compatibility than reliable syslogging. But whatever my reasons, my
connection to syslogd is already unreliable and therefore *should not
block*.

(Could a syslogd listen on /dev/log both as SOCK_DGRAM and as
SOCK_STREAM? If so, then your philosophy implies that glibc should be
trying SOCK_STREAM *first*, falling back to SOCK_DGRAM for historical
compatibility. Either way, when it uses datagrams, it should never
block, period.)

 - Pat
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Mon Oct 23 2000 - 21:00:21 EST