Bug 6899

Summary: xntpd screams verbosely about down peers/servers
Product: [Retired] Red Hat Linux Reporter: Chris Siebenmann <cks-rhbugzilla>
Component: xntp3Assignee: Preston Brown <pbrown>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: low Docs Contact:
Priority: medium    
Version: 6.1   
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2001-01-19 21:12:20 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Chris Siebenmann 1999-11-10 22:43:29 UTC 
If you are peering with a machine that goes down, or that
stops running an NTP daemon, you will see screams in your
syslog of the form:
	xntpd[26005]: recvfrom() fd=7: Connection refused
Worse, these are logged with priority LOG_ERR, which is
supposed to mark fairly important problems.

 These exist because Linux + glibc return errors on
recvfrom() that are due to a previous UDP sendto() on
the same socket failing because of various detectable
problems. The xntp3 code is not expecting this to
happen, and thinks that these are real recvfrom()
errors.

 These syslog messages are annoying. I've developed a
patch to muzzle them for connection refused, host down,
and host/net unreachables, if people are interested.
Comment 1 Jeff Johnson 1999-11-10 22:48:59 UTC 
Could you reply to this message with patch attached? Thanks ...
Comment 2 Preston Brown 2001-02-01 17:38:06 UTC 
closed due to lack of additional feedback, and the fact that this is solved with
newer versions in currently available distributions of Red Hat Linux.