Re: Heavy Clock-Drift after update from Kernel 2.4.9 to 2.4.19

Matthias Schniedermeyer (ms@citd.de)
Tue, 6 Aug 2002 00:17:26 +0200

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On Mon, Aug 05, 2002 at 11:26:23PM +0100, Alan Cox wrote:
> On Mon, 2002-08-05 at 22:03, Matthias Schniedermeyer wrote:
>
> > A bit strange is that it seems to depend on load. Higher load seems to
> > cause less/none clock drift.
> > (e.g. when i compile something in background, the "rotating thing" in
> > mozilla doesn't spin to fast)
> >
> > Hardware is a Dual-PIII-933Mhz. Kernel is configured as SMP.
> > Any more details needed?
>
> Can you grab /proc/interrupts every 5 minutes for an hour and send me
> the resulting file ?

I guessed wrong.

USB is the problem.

When i move my USB-Mouse i can see the seconds pass by. (Heavy moving
causes up to 2-3x higher "speed".)

Then maybe the USB-Keyboard problem is related. Every now and then a key
gets "stuck" and is repeated until i press another key. (Very annying
when you press "CTRL-n" in Mozilla for getting a new window. Personal
"record" was about 50 Windows)
(Currently i'm typing with the "normal" Keyboard)

But here is the wanted info

Record with this from another machine:
-- time.sh --
#!/bin/sh
while true
do
echo -n "Localtime: "
date
echo -n "Remotetime: "
ssh <remote> date \; cat /proc/interrupts
sleep 5m
done
-- End --

-- Begin --
Localtime: Mon Aug 5 23:18:03 CEST 2002
Remotetime: Mon Aug 5 23:18:34 CEST 2002
CPU0 CPU1
0: 687154 685272 IO-APIC-edge timer
1: 6478 6372 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 38180 38195 IO-APIC-edge serial
8: 8 4 IO-APIC-edge rtc
10: 90159 89996 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1946893 1959777 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2256667 2258749 IO-APIC-level eth0
24: 12 14 IO-APIC-level ide2, ide3
26: 31751 31651 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 14542 14420 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1083892 1083828
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:23:04 CEST 2002
Remotetime: Mon Aug 5 23:23:35 CEST 2002
CPU0 CPU1
0: 702302 700216 IO-APIC-edge timer
1: 6495 6394 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 38773 38794 IO-APIC-edge serial
8: 8 4 IO-APIC-edge rtc
10: 90159 89996 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1951998 1964779 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2288054 2292385 IO-APIC-level eth0
24: 12 14 IO-APIC-level ide2, ide3
26: 32160 32065 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 14574 14452 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1113987 1113923
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:28:05 CEST 2002
Remotetime: Mon Aug 5 23:28:36 CEST 2002
CPU0 CPU1
0: 717649 714961 IO-APIC-edge timer
1: 6547 6455 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 39386 39373 IO-APIC-edge serial
8: 8 4 IO-APIC-edge rtc
10: 90159 89996 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1958804 1971693 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2312661 2316329 IO-APIC-level eth0
24: 12 14 IO-APIC-level ide2, ide3
26: 33205 33106 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 14614 14489 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1144083 1144018
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:33:06 CEST 2002
Remotetime: Mon Aug 5 23:33:54 CEST 2002
CPU0 CPU1
0: 735216 732129 IO-APIC-edge timer
1: 6777 6666 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 40052 40079 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 91593 91536 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1960578 1973582 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2319176 2322831 IO-APIC-level eth0
24: 12 14 IO-APIC-level ide2, ide3
26: 33246 33164 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 14870 14751 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1174177 1174113
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:38:07 CEST 2002
Remotetime: Mon Aug 5 23:40:22 CEST 2002
CPU0 CPU1
0: 754736 751466 IO-APIC-edge timer
1: 6967 6890 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 40846 40825 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 94361 94214 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1963168 1976115 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2627805 2631421 IO-APIC-level eth0
24: 17 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 15005 14900 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1204272 1204208
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:43:08 CEST 2002
Remotetime: Mon Aug 5 23:47:07 CEST 2002
CPU0 CPU1
0: 774954 771719 IO-APIC-edge timer
1: 6974 6899 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 41592 41679 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 97489 97273 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1963168 1976115 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2633541 2637118 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 15124 15015 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1234366 1234302
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:48:09 CEST 2002
Remotetime: Mon Aug 5 23:55:13 CEST 2002
CPU0 CPU1
0: 799080 796181 IO-APIC-edge timer
1: 7049 6986 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 42535 42656 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 102866 102704 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1963168 1976115 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2639067 2642585 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 15189 15089 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1264459 1264395
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:53:10 CEST 2002
Remotetime: Tue Aug 6 00:01:21 CEST 2002
CPU0 CPU1
0: 817664 814472 IO-APIC-edge timer
1: 7060 7005 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 43328 43323 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 104976 104754 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1963168 1976115 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2644790 2648281 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 15273 15178 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1294553 1294489
ERR: 2
MIS: 0
Localtime: Mon Aug 5 23:58:11 CEST 2002
Remotetime: Tue Aug 6 00:07:00 CEST 2002
CPU0 CPU1
0: 834386 831554 IO-APIC-edge timer
1: 7179 7136 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 44050 43941 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 106138 105949 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1964452 1977390 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2650015 2653482 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 15366 15263 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1324646 1324582
ERR: 2
MIS: 0
Localtime: Tue Aug 6 00:03:12 CEST 2002
Remotetime: Tue Aug 6 00:13:06 CEST 2002
CPU0 CPU1
0: 852576 850055 IO-APIC-edge timer
1: 7288 7279 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 44750 44693 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 108250 107946 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 1965663 1978588 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2655858 2659332 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 15462 15359 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1354741 1354677
ERR: 2
MIS: 0
Localtime: Tue Aug 6 00:08:13 CEST 2002
Remotetime: Tue Aug 6 00:19:27 CEST 2002
CPU0 CPU1
0: 871488 869187 IO-APIC-edge timer
1: 7532 7549 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 46054 46001 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 110569 110264 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 2067941 2081901 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2661907 2665401 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 17333 17198 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1384837 1384773
ERR: 2
MIS: 0
Localtime: Tue Aug 6 00:13:14 CEST 2002
Remotetime: Tue Aug 6 00:26:21 CEST 2002
CPU0 CPU1
0: 892223 889872 IO-APIC-edge timer
1: 8208 8256 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
4: 47433 47480 IO-APIC-edge serial
8: 8 5 IO-APIC-edge rtc
10: 113972 113615 IO-APIC-level usb-ohci
14: 18 14 IO-APIC-edge ide0
18: 2172921 2186315 IO-APIC-level EMU10K1
22: 243 244 IO-APIC-level sym53c8xx
23: 2668715 2672278 IO-APIC-level eth0
24: 18 22 IO-APIC-level ide2, ide3
26: 37713 37638 IO-APIC-level ide4
28: 3 3 IO-APIC-level sym53c8xx
29: 17465 17332 IO-APIC-level sym53c8xx
NMI: 0 0
LOC: 1414934 1414870
ERR: 2
MIS: 0
-- End --

Bis denn

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Next message: Richard Zidlicky: "Re: context switch vs. signal delivery [was: Re: Accelerating user mode"
Previous message: Paul Larson: "Re: [PATCH] 2.5.30-dj1"
In reply to: Alan Cox: "Re: Heavy Clock-Drift after update from Kernel 2.4.9 to 2.4.19"
Next in thread: Thomas Mierau: "2.4.19-ac4 IRQ messup?"