Date: Thu, 07 Sep 2000 17:00:15 -0600 From: Chuck Paterson <cp@bsdi.com> To: Warner Losh <imp@village.org> Cc: The Hermit Hacker <scrappy@hub.org>, freebsd-current@freebsd.org, freebsd-smp@freebsd.org Subject: Re: 'interrupt-level buffer overflows' for sio device? Message-ID: <200009072300.RAA24702@berserker.bsdi.com>
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FYI, this is very likely not caused by the heavy weight interrupt threads, but rather because the interrupt threads can't be run because the giant lock is held by a process running in the kernel. Once we get drivers to have their own locking and pulled out from under the giant lock this problem should deminish greatly. Before we can do this there are various infrastructure pieces which must be made mp safe, such as the lockmanger. Chuck To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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