Date: Mon, 21 Sep 1998 09:45:55 -0700 From: "Fred L. Templin" <templin@erg.sri.com> To: Roger Hardiman <roger@cs.strath.ac.uk> Cc: current@FreeBSD.ORG, multimedia@FreeBSD.ORG, templin@erg.sri.com Subject: Re: wd0 / bt848 causing IDE timeouts Message-ID: <199809211645.JAA02560@grayling.erg.sri.com> In-Reply-To: Your message of "Mon, 21 Sep 1998 14:16:42 BST." <360651BA.59E2@cs.strath.ac.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
Roger, > I think it is possible the bt848 driver is causing lots of interrupts > when there is not a TV signal but there is lots of noise. > Would excessive IRQs (say 100 a second) cause the IDE to timeout? I would think it more likely that you're spending too much time in the interrupt service routine per individual interrupt while blocking other device interrupts. Look for long-duration DELAYs, and verify whether your spl*()'s are setting a higher priority than necessary. Regards, Fred templin@erg.sri.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199809211645.JAA02560>