Messages in this thread | | | Date | Fri, 17 Jan 2003 10:00:42 +1100 (EST) | From | Neale Banks <> | Subject | Re: [PATCH] Timer bug fix ported to 2.4.20 |
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On Thu, 16 Jan 2003, Robert Wruck wrote:
> I recently upgraded from 2.2.19 to 2.4.20 and noted that the via timer > bugfix has disappeared. > > I'm not sure if this is a VIA problem, because it happens on my PIII > i440BX-based board, Gigabyte GA-6BXE, which does not seem to have any > chips made by VIA. (82443BX, 32371EB PIIX4, ITE 8671 SuperIO)
Different people have reported this check triggered on various hardware which doesn't have VIA686-anything. In my case on both an old AcerNote and a Toshiba-1800.
> However, whenever i start X, the system clock slows down significantly > (it takes about 10 real seconds for 1 system second to elapse).
Ouch! Interesting to see that your system triggers the "VIA bug really present.", whereas mine doesn't and I haven't found any gross time-keeping problems. Also, while we both report "read" and "re-read" values over a narrow range they are quite different ranges.
I wonder if we are seeing different bugs which exhibit similar symptoms?
> The only patch I could find for this was the one by Neale Banks: > http://www.uwsg.iu.edu/hypermail/linux/kernel/0204.1/0005.html
OK, just to set the record straight, my involvement has been merely to port Vojtech's patch (for the original see: http://marc.theaimsgroup.com/?l=linux-kernel&m=100560251020988&w=2 ), add the ''disable with "timer=no-via686a"'' bit (which people more knowledgeable than I say is quite unnecessary) and to report some "interesting" results (see: http://marc.theaimsgroup.com/?l=linux-kernel&m=102621884412934&w=2 ).
> I ported this to 2.4.20 and it works (at least for me..) > It can still be disabled with "timer=no-via686a" (from the original patch) > > Any comments? (I'm not subscribed to linux-kernel)
HTH, Neale.
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