Date: Mon, 18 Jun 2018 19:46:12 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 229106] intr_event_handle is unsafe with respect to interrupt handler list Message-ID: <bug-229106-227-RKv6un5sN5@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-229106-227@https.bugs.freebsd.org/bugzilla/> References: <bug-229106-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229106 --- Comment #8 from Andriy Gapon <avg@FreeBSD.org> --- (In reply to Conrad Meyer from comment #7) I don't know epoch(9) / ck_epoch implementation details, but given the constraints[*] of interrupt handling, I think that it could be an overkill.= I mean, it probably has some overhead that's avoidable. And for that latency sensitive code it could matter. [*] The interrupt handler list can be iterated only by a single thread / context at a time. Also, we reduce modifications to a single thread at a t= ime using a mutex. Performance of adding and removing interrupt handlers is not critical. --=20 You are receiving this mail because: You are the assignee for the bug.=
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