I want to know whether timer interrupts i.e what we see at “cat /proc/interrupts | grep timer” are NMIs Or what.
I know that watchdog timer is an NMI.
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I want to know whether timer interrupts i.e what we see at “cat /proc/interrupts | grep timer” are NMIs Or what.
I know that watchdog timer is an NMI.
Normally this depends on the hardware and not the kernel, you should look at the documentation of your CPU. Most of the time there are only a few NMI lines available in a CPU and they should be used as less as possible. (Only for life threatening interrupts, like the watchdog timer :))
And a quite useful read about NMI http://www.ganssle.com/articles/anmi.htm