Date: Thu, 5 Oct 2006 19:11:01 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-stable@freebsd.org Subject: Re: Recommendations for a serial port card you can actually BUY? Message-ID: <20061006001101.GD2473@FS.denninger.net> In-Reply-To: <20061006000648.S36667@atlantis.atlantis.dp.ua> References: <20061005151925.GA1156@FS.denninger.net> <20061005190822.GA15547@icarus.home.lan> <20061005202144.GA11105@FS.denninger.net> <20061006000648.S36667@atlantis.atlantis.dp.ua>
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On Fri, Oct 06, 2006 at 12:22:09AM +0300, Dmitry Pryanishnikov wrote: > > Hello! > > On Thu, 5 Oct 2006, Karl Denninger wrote: > >The problem that is nailing me particularly hard right now is the second > >one > >- I have embedded control systems that I speak to over a RS-232 interface > >(the devices are actually '485 on a common bus but talked to via a 232/485 > >converter) and it simply does not work on 6.x using the Comtrol driver > >at all. 100ms delays and the like are one thing - we're talking about > >delays in characters reaching the application of one second or more, and in > > What makes me wonder is whether delays you're seeing have the same nature > as recent watchdog timeouts on various Gbit NICs observed by many RELENG_6 > users (interrupt processing scheduling problem I suspect), or they're > strictly rp(4)-specific. It might be. I am NOT having problems with em0 however, and I DO have it in the box.... > >With FreeBSD 5.x being EOL'd this is now turning into a critical problem. > >I can't in good conscience put packages out there that have been EOL'd nor > >offer meaningful support on them. While 5.4 has been reasonably stable for > >some time, that is now declared a "dead" release. 5.5 is similarly on that > >road. The only right path forward is into the 6.x world, but I can't get > >there from where I am now unless this problem can be resolved. > > If I were you, I'd try to prepare easy-repeatable test case so developer > (or just curious and clever person) who has Comtrol Serial Port Card could > recreate the problem. And no, I don't have either hardware or time > available. Its easy for me to do that, but so far nobody has picked up the PR. -- -- Karl Denninger (karl@denninger.net) Internet Consultant & Kids Rights Activist http://www.denninger.net My home on the net - links to everything I do! http://scubaforum.org Your UNCENSORED place to talk about DIVING! http://genesis3.blogspot.com Musings Of A Sentient Mind
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