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How to diagnose system freezes?

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To: fedora-list@xxxxxxxxxx

Subject: How to diagnose system freezes?

From: Steve Parker <sparke5509@xxxxxxxxxx>

Date: Fri, 26 Aug 2005 13:40:27 -0400

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Hi,

I'm running FC4 (with all updates) and I'm frequently experiencing totalsystem freezes (i.e. my only option is to reset). I highly suspect thishas to do with a third-party kernel module (Contivity VPN client v3.3from Apani) as it seems to occur only when the VPN connection is active- even though the modules are always loaded.

With no errors/messages in any of the system logs following a freeze(crash, lockup, insert-your-favorite-word-here), how does one go aboutdiagnosing a problem like this? It seems to be a common problem formany people (at least on fedoraforum.org). Anyone? Help would begreatly appreciated. Is it worth submitting a bug to bugzilla if theContivity modules are suspected?


Thanks!
Steve