Date: Fri, 15 May 1998 22:43:53 +1000 From: David Dawes <dawes@rf900.physics.usyd.edu.au> To: dyson@FreeBSD.ORG Cc: sos@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: People having problems with X windows? Message-ID: <19980515224353.26233@rf900.physics.usyd.edu.au> In-Reply-To: <199805150738.CAA03075@dyson.iquest.net>; from John S. Dyson on Fri, May 15, 1998 at 02:38:54AM -0500 References: <199805150636.IAA01056@sos.freebsd.dk> <199805150738.CAA03075@dyson.iquest.net>
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On Fri, May 15, 1998 at 02:38:54AM -0500, John S. Dyson wrote: >Søren Schmidt said: >> In reply to John S. Dyson who wrote: >> > Check for a message something like: >> > >> > pmap: added WC mapping at address ???? >> > >> > There might be a correlation between that message and system failures? >> >> I did a few experiments here, if I start the X server from a telnet >> session, the server comes up with all its output on the telnet >> session, but the X display stop abruptly after very few screen >> updates, in my case it hangs in the startup of fvwm95. I had >> a top running on another telnet session and it continued to work >> and showed the X server eating up all available cpu on >> "CPU0", the top command run on CPU1 here so that might be >> why it still worked. everything else was dead in the water, >> ie no network no keyboard no nothing... >> >I just removed my WC "improvements", by adding the return to the >subroutine in the pmap code. See if it is more friendly. The >symptoms appear to be those associated with improper setting of >WC mode for a display adaptor. I had to add a heuristic to make >it work correctly on one of my cards, but I guess it was bad. > >The code is still in there, but I guess there is the need for more >research into the issue. What were you using to determine when to enable WC? David To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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