[Madlug] What is a spurrious interupt?

Ray Ferguson rferguson at voyager.net
Thu Jun 13 16:37:26 CDT 2002


Dmesg output shows a spurious interupt error on irq7.  My one friend said that 
he thinks it's when the CPU receives an Interupt request on a particular IRQ, 
and when it goes to do the work, it finds nothing there for it to do.  He 
suggested that it may be the result of IRQ sharing where the CPU is 
responding to the rong device on a shared IRQ.  Can any verify that this is 
what a spurious interupt is or correct this info if it's wrong?

-ray.



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