Le Thu, 09 Apr 2009 22:00:52 +0200 Petr Stehlik <[email protected]> a _crit:
> > Patrice Mandin píše v Čt 09. 04. 2009 v 21:40 +0200: > > Fixing the kernel to run it from FastRam seems top priority for me, to > > have it run at full speed. > > I think I reported first FastRAM problems like 10-12 years ago. The > symptoms were that time was running much faster (the bogomips value was > 3-4 times higher than normal) and there were many spurious interrupts > (/proc/interrupts). And the IDE was not running correctly (because of > that?). > > We never figured out what was wrong - mainly because I was the only one > with an AfterBurner040 - so the workaround with kernel in ST-RAM became > sort of a given thing. I think I remember some TT030 were having similar > problems... Here is a rough timing between the two settings: 060 73MHz, 64MB Fast, boot from IDE hard disk partition, 2.6.26 kernel. FastRam ST-Ram 0 0 Press key to boot Linux, in ataboot.tos 7s 15s Start loading stuff from disk - 6mn50s INIT: Entering runlevel: 2 60s 7mn25s Login prompt 0 0 Enter 'reboot' command in shell 15s 1mn12s Reset (ST-Ram = Nice handbreak, isn't it?) Note: I blindly guessed the time for FastRam, as I get a black screen, but I was able to login and type reboot, so the console was ready. I suppose it's the problem of atafb screen being wrongly allocated in FastRam. I still did not manage to get serial console working, which I'll need if someone fixes this atafb problem and I want to test the fix. The various machines can be detected with cookies inside ataboot.tos, and I remember there was a routine originally that copied the kernel and the ramdisk to the final place where they execute. So it should be possible to get the most optimal setup on a given configuration. [Petr: Thanks for the Etch image for Aranym] -- Patrice Mandin WWW: http://pmandin.atari.org/ Programmeur Linux, Atari Spécialité: Développement, jeux -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
