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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This archive was generated by hypermail 2b29 : Thu Jan 23 2003 - 22:00:14 EST