Date: Tue, 18 Apr 2006 22:46:23 -0700 (PDT) From: "R. B. Riddick" <arne_woerner@yahoo.com> To: Erin E Conn <econn@nc.rr.com>, freebsd-multimedia@freebsd.org Subject: Re: Rebooting problems with /dev/cxm0 Message-ID: <20060419054623.74788.qmail@web30301.mail.mud.yahoo.com> In-Reply-To: <44458366.7040102@nc.rr.com>
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--- Erin E Conn <econn@nc.rr.com> wrote: > I do not think it is a resource issue, as the device works fine in > Windows using the provided WinTV software. Has anyone else experienced > similar issues with this card or any suggestions for remedying this problem? > I had a similar problem with my Pentium 133MHz: When I used "cat /dev/cxm0" and piped it via a NIC to another box, the pvr box halted without rebooting (at least for some minutes - then i pushed the reset button). Somehow it felt like the read requests from /dev/cxm0 must be issued quite often and regularily and the read requests from /dev/cxm0 should not be limited in size (1MB works fine, while 1 byte crashes almost immediately (e. g. "dd if=/dev/cxm0 of=/dev/null bs=1 count=1000"))... Furthermore the power saving features should be disabled in my box, I think (I did not test it thoroughly - at least whenever the power saving started the box crashed, when I read from /dev/cxm0 at that time)... :-) Since I split the reading from cxm0 and transfering to hard disc (partially via network) in two processes, that use 8 or about 8 buffers (each 2MB or about 2MB), I do not have this problem (61 days uptime... :-)) And each day at least 3h of reading from /dev/cxm0 - at most days much more: 6h or so). Maybe that helps (e. g.: just try to do "dd if=/dev/cxm0 of=/dev/null bs=1m count=1000"). Bye Arne __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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