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Interrupt storm detected on "irq 20" throttling interrupt source

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Top Forums UNIX for Advanced & Expert Users Interrupt storm detected on "irq 20" throttling interrupt source
# 1  
Old 04-22-2011
Interrupt storm detected on "irq 20" throttling interrupt source
I receive the following warning messages on a very new machine which has FreeBSD 8.1 x64 installed on it:
Code:
Interrupt storm detected on "irq 20" throttling interrupt source

It is unclear what this means and what its origins are (motherboard? CPU? RAM?).
I can start the desktop and the message is then no longer visible, but the question is whether this warning message is still being generated in the background.
# 2  
Old 04-22-2011
I have seen this happen with FreeBSD on top of VMWARE. Are you running BSD standalone?
# 3  
Old 04-22-2011
Yes, this is FreeBSD and is standalone. This is the first time the computer is restarted after an install a week earlier, so likely to happen again after every restart.
# 4  
Old 04-22-2011
Check the system logs to see if the message is showing up there, perhaps dmesg or /var/log/messages
# 5  
Old 04-25-2011
Thank you all for making suggestions. I had to restart the computer as a result of a refurbishing of the room the machine is in and the issue did not reoccur. The /var/log/messages file has about 20 occurrences of the warning line, but the cause remains unclear. I am considering this solved.
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