https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214987
David Bright changed:
What|Removed |Added
Assignee|b...@freebsd.org|d...@freebsd.org
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--- Comment #11 from Conrad Meyer ---
(In reply to David Bright from comment #10)
Nope, I don't have any interest in it. Please, go ahead.
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--- Comment #10 from David Bright ---
Conrad, do you want to take your patch forward? If not, I'd be interested in
taking on this bug.
(In reply to Conrad Meyer from comment #8)
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Jan Beich changed:
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--- Comment #9 from Conrad Meyer ---
Created attachment 178773
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=178773&action=edit
Simple dtrace script for tracing timer filter calls
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--- Comment #8 from Conrad Meyer ---
Created attachment 178772
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patch to update timer kevents
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--- Comment #7 from Conrad Meyer ---
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
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--- Comment #6 from Conrad Meyer ---
(In reply to Conrad Meyer from comment #5)
Well, ok, things like the user-supplied udata, fflags, and data are updated.
Hmmm. We could hook f_touch or just handle it in f_event.
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--- Comment #5 from Conrad Meyer ---
In fact:
EV_ADD Adds the event to the kqueue. Re-adding an existing event
^^^
will modify the param
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--- Comment #4 from Conrad Meyer ---
It appears that fd-based filters will have the same behavior -- duplicate adds
(same ident and filter) are just ignored. Given that, perhaps this is just a
documentation bug?
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--- Comment #3 from Conrad Meyer ---
I see. You are reusing the timer with ident=1. Hm. With:
@@ -25,7 +25,7 @@
int n = ::kevent(kq, &event, 1, nullptr, 0, nullptr);
assert(n == 0);
-EV_SET(&event, 1, EVFILT_TIMER, flags,
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--- Comment #2 from Conrad Meyer ---
Just kidding. filt_timerattach() is only invoked once.
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Conrad Meyer changed:
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--- Comment #1 fro
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214987
Bug ID: 214987
Summary: updating EVFILT_TIMER kqueue events doesn't work
Product: Base System
Version: 11.0-RELEASE
Hardware: Any
OS: Any
Status: New
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