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I have been searching the illumos man pages for an equivalent of FreeBSD's devd (way to run programs based upon kernel events), but I could not find any.

Is there an Illumos/Solaris equivalent of FreeBSD's devd daemon, providing a way to have userland programs run when certain kernel events happen?

gsl
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    You can use dTrace "destructive actions" to send signals or run `system()` commands. See https://docs.oracle.com/cd/E53394_01/html/E53395/gkwvl.html – Andrew Henle Oct 04 '20 at 13:08
  • Thanks for mentioning dTrace for sending signals. If I am not mistaken, dTrace was released in 2005. I wonder how they were sending signals based on kernel events before that time? – gsl Oct 05 '20 at 16:55

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