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Re: [Xen-users] how to debug hardware lockups?

To: "Stefan Bauer" <stefan.bauer@xxxxxxxxxxx>

From: "Rudi Ahlers" <rudiahlers@xxxxxxxxx>

Date: Sat, 15 Nov 2008 15:45:33 +0200

Cc: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>

Delivery-date: Sat, 15 Nov 2008 05:46:08 -0800

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List-id: Xen user discussion <xen-users.lists.xensource.com>

On Sat, Nov 15, 2008 at 10:33 AM, Stefan Bauer <stefan.bauer@xxxxxxxxxxx> wrote: > Rudi Ahlers schrieb: >> Hi, >> >> We have a server which locks up about once a week (for the past 3 >> weeks now), without any warning, and the only way to recover it, is to >> reset the server. This causes unwanted downtime, and often software >> loss as well. >> >> How do I debug the server, which runs CentOS 5.2 to see why it locks >> up? The CPU is an Intel Q9300 Core 2 Quad, with 8 GB RAM, on an Intel >> Motherboard >> >> The last few entries before the server froze, is: >> >> >> Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:59008 >> Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: >> [127.0.0.1]:59008 >> Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:47729 >> Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: >> [127.0.0.1]:47729 >> Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:47890 >> Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: >> [127.0.0.1]:47890 >> Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:50023 >> Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: >> [127.0.0.1]:50023 >> Nov 15 07:15:20 saturn snmpd[2527]: Connection from UDP: [127.0.0.1]:58459 >> Nov 15 07:15:20 saturn snmpd[2527]: Received SNMP packet(s) from UDP: >> [127.0.0.1]:58459 >> Nov 15 10:10:10 saturn syslogd 1.4.1: restart. > > Rudi, > > i just wondering what these SNMP-Packages are for? I know from some of > my Accesspoints, that they are able to get rebootet by snmp. > > Regards > > -- > stefan > > _______________________________________________ The server has Cacti installed to monitor bandwidwth of the switches, and XEN VPS's, hence the 5 minute snmp entries, but there's nothing configured that can shut it down. The server literally just freezes up, and we need to send someone to the datacentre to reboot it. -- Kind Regards Rudi Ahlers _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

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