Re: Debugging a system freeze?
On Sun, Jun 17, 2012 at 01:44:47PM +0200, Christopher Svanefalk wrote:### End of Message from Christopher Svanefalk ###
Problem has been solved for the record - followed a recommendation and
notched vcore up to 1.280, misread one of the original graphs.
To address your (now moot) request, the Kernel ring buffer is probably the first place I would go, if I suspected a hardware or hardware driver issue. You can see the current contents of the ring buffer by running the 'dmesg' command, or you can see more history is /var/log/messages for general logs.
I should note from experience, that often when there's an obsure or intermittant hardware problem sometimes the problem manifests itself different ways each time, or side effects of the problem can misinform the troubleshooting process. In an environment where you have >1 identical pieces of hardware with the same (Exact Same) Kernel version, Kernel modules, and drivers, If one system had this problem and the other didn't, then I would suspect either the h/w or environment first. If I could reproduce the problem on both systems, then I would suspect s/w, but not rule out the possibility of environment or h/w design flaw.
×-×-×-×-×-×-×-×-×-×-× Rule of Economy: Programmer time is expensive;
Jeffrey A. Gipson conserve it in preference to machine time.
×-×-×-×-×-×-×-×-×-×-× -- Eric S. Raymond, The Art of Unix Programming
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