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  1. #1

    Interrupt kernel module when user process terminates/receives signal?

    I am working on a kernel module where I need to be "aware" that a given process has crashed.

    Right now my approach is to set up a periodic timer interrupt in the kernel module; on every timer interrupt, I check the task_struct.state and task_struct.exitstate values for that process.

    I am wondering if there's a way to set up an interrupt in the kernel module that would go off when the process terminates, or, when the process receives a given signal (e.g., SIGINT or SIGHUP).


  2. #2
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Have you considered doing this in user space instead of kernel space? There are tools to monitor processes in user space that work well. Look at snice, skill, wait, and ps.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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