Messages in this thread |  | | Date | 03 Oct 2001 09:26:20 -0000 | From | "Geoffrey Hausheer" <> | Subject | Strange system-clcok behaviour |
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I am having some very strange behaviour from my system clock. I am not sure that it is really a kernel problem, but I don't know where else to look. The problem is that my kernel does not keep consistent time. It doesn't have a regular drift, but instead jumps radically every once in a while. I have had this problem since switching to the 2.4.xx kernels (never with the 2.2.xx kernels),and am currently running 2.4.9. This is a PentiumII laptop, and the kernel is compiled with no APM support. Please don't recomend ntpd, I've tried it, and it doesn't work well for this problem. If there is any other info I can provide (or if someone can point me in another direction), please let me know.
adjtimex -p reports: mode: 0 offset: 0 frequency: 5065932 maxerror: 16384000 esterror: 16384000 status: 65 time_constant: 2 precision: 1 tolerance: 33554432 tick: 10000 raw time: 1002095853s 812935us = 1002095853.812935 return value = 5
Here are some snippets from running adjtimex -c: the clock was synchronized against the hardware clock just before the trace I have validated that the hw clock keeps at least reasonably accurate time. 1001882724 0.001034 0.001034 10000 5065932 1001882734 -0.000707 -0.001741 10000 5065932 1001882744 -0.000758 -0.000051 10000 5065932 10000 5400165 1001882754 -0.000805 -0.000047 10000 5065932 10000 5373951 1001882764 -0.000849 -0.000044 10000 5065932 10000 5354290 ...two days later... 1002075913 -8151.712480 0.000009 10000 5065932 10000 5006950 1002075923 -8151.712469 0.000011 10000 5065932 10000 4993843 1002075933 -8151.712454 0.000015 10000 5065932 10000 4967628 1002075943 -8151.712437 0.000017 10000 5065932 10000 4954521 1002075953 -8151.712425 0.000012 10000 5065932 10000 4987289 1002075963 -8151.712417 0.000008 10000 5065932 10000 5013503 1002075973 -8151.712400 0.000017 10000 5065932 10000 4954521 1002075983 -8151.712389 0.000011 10000 5065932 10000 4993842 1002075993 -8151.802377 -0.089988 10000 5065932 10091 -1566311 ... 1002076093 -8151.892229 0.000014 10000 5065932 10000 4974182 1002076103 -8151.892211 0.000018 10000 5065932 10000 4947967 1002076113 -8151.892198 0.000013 10000 5065932 10000 4980735 1002076123 -8151.892181 0.000017 10000 5065932 10000 4954521 1002076133 -8151.892166 0.000015 10000 5065932 10000 4967628 1002076143 -8151.892153 0.000013 10000 5065932 10000 4980735 1002076153 -8151.892135 0.000018 10000 5065932 10000 4947967 1002076163 -8151.892120 0.000015 10000 5065932 10000 4967628 1002076192 -8171.223589 -19.331469 10000 5065932 29332 1585971 ... 1002076653 -8171.382818 0.000021 10000 5065932 10000 4928306 1002076663 -8171.382803 0.000015 10000 5065932 10000 4967628 1002076673 -8171.382785 0.000018 10000 5065932 10000 4947967 1002076683 -8171.382766 0.000019 10000 5065932 10000 4941413 1002076693 -8171.382736 0.000030 10000 5065932 10000 4869324 1002076703 -8171.382730 0.000006 10000 5065932 10000 5026610 1002076713 -8171.382712 0.000018 10000 5065932 10000 4947967 1002077037 -8485.777411 -314.394699 10000 5065932 324395 3093298 1002077050 -8485.777439 -0.000028 10000 5065932 10000 5249433
my /etc/adjtime looks like: 0.000000 0 0.000000 0 LOCAL
Please CC me on any correspondence Thanks, .Geoff
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