Messages in this thread | | | Date | Fri, 5 Apr 2002 10:09:15 +0200 | From | Pierre Lombard <> | Subject | Re: time jumps |
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On Wed, Apr 03, 2002 at 01:32:05PM +0200, Bernd Schubert wrote: > after changing from 'CONFIG_X86_TSC=n' to 'CONFIG_X86_TSC=y' the problem > still exists, so I'm going to try some other suggestions.
> On Wednesday 27 March 2002 18:33, Mark Cooke wrote: > > There is a hardware bug on some via 686a systems where the RTC appears > > automagically change it's programmed value. > > > > A patch was originally made against 2.4.2, and some version of this > > appears to be applied to current kernels (I don't have a vanilla > > 2.4.17 to check against). Look in arch/i386/kernel/time.c for mention > > of 686a. > > > > It appears to only be used if the kernel's not compiled with > > CONFIG_X86_TSC though, so if you have that defined you may not see the > > problem at all...
The workaround below by Vojtech Pavlik has fixed this issue on my system (I've a VIA based Abit KT7 and under heavy disk I/O between two IDE channels the timer goes mad):
Re: [PATCH] VIA timer fix was removed? From: Vojtech Pavlik (vojtech@suse.cz) Date: Mon Nov 12 2001 - 16:58:32 EST
http://www.uwsg.iu.edu/hypermail/linux/kernel/0111.1/0951.html
If you see the message in your logs then congratulations: you hit (one of) the VIA bug(s) ;)
-- Best regards, Pierre Lombard - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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