Date: Thu, 1 Feb 96 8:19:45 CST From: Joe Greco <jgreco@solaria.sol.net> To: stevep@orion.ods.net (Steve Palm) Cc: hackers@freebsd.org Subject: Re: WYE Message-ID: <199602011419.IAA04160@solaria.sol.net> In-Reply-To: <199601312221.QAA11581@orion.ods.net> from "Steve Palm" at Jan 31, 96 04:23:12 pm
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Good morning SIO hackers, In my continuing struggles with the BocaBoard 2016-and-jammed-IRQ problem, I've set up a continuous port monitor system that alerts me when something bad happens. The condition, as previously described, is quite detectable - see the first two lines below. Steve Palm has redeemed himself by making the following possibly important observation which I have somehow missed: > I determined that wye's IRQ was jammed again.... The light was on > red, as well as the AT<CR> (nothing) <CR> (OK) behaviour. > > I downed wye and did a physical reset. One thing to note: When I > did a halt, and wye was waiting for a reboot, the IRQ light did go > out. Not sure if that would indicate anything meaningful or not, > since I don't know what the software drivers do during a halt request > to make changes to the IRQ status, but thought I would share it with > you in case you hadn't noticed. Okay, this suggests that there is some way to clear this condition in software! I had been meaning to write a little more about this anyways, so here goes. The time before this, when this happened, I made the trek down to the office and manually unplugged each port, and ran "cu" against it and typed "AT" in the hopes that I would "shake a bit" someplace that had been missed. Each time I got the message "sio<port#>: IRQ pending (2) in poll" which was a message that Bruce (I think?) had sent me a minor patch to put in to help debug this.. However I got through all 16 ports and the IRQ was still jammed low. Any ideas or next-step suggestions would be appreciated. Steve's observation suggests that the condition can be corrected via software.. ... Joe ------------------------------------------------------------------------------- Joe Greco - Systems Administrator jgreco@ns.sol.net Solaria Public Access UNIX - Milwaukee, WI 414/342-4847
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