Date: Mon, 18 Jun 2018 14:35:42 +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-NiW03WWXjH@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/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229106 --- Comment #1 from John Baldwin <jhb@FreeBSD.org> --- This is an old race. I have a very old p4 branch that dedicates a spin lock to protecting the list of handlers (and then uses that as the thread_lock of idle interrupt threads so that the number of spin locks taken for an interrupt remains the same) that fixes this. -- You are receiving this mail because: You are the assignee for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-229106-227-NiW03WWXjH>