[Bug 214987] updating EVFILT_TIMER kqueue events doesn't work

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Thu Jan 12 05:45:47 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214987

--- Comment #7 from Conrad Meyer <cem at freebsd.org> ---
I have a patch to modify existing timers:

$ ./test
kevent time: 1017

It is probably racy.  f_event calls should be protected by the knote list lock,
but nothing protects the first timer callout racing with the 2nd registration's
polling.

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