Messages in this thread |  | | | Date | Sun, 30 Jan 2005 23:10:58 +0100 | | From | Michael Obster <> | | Subject | Re: 2.4.29: strange behaviour system clock |
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Hi,
I have also seen such offsets on some boxes running at EADS (a Compaq Proliant [<-- this one has a very small offset] and a no name machine [<-- this one is terrible in 10 minutes 2-3 minutes too fast]). I have no numbers at the moment. If you need some more information please contact me.
I tried to fix this issue also, but haven't found any solution. Both servers are running SuSE Linux I think on 8.x (2.4 kernel). I don't know at the moment if we tried already an update to 2.6 kernel.
For the moment our fix is a 10 minute cronjob which execute hwclock --hctosys because hardware clock is running correct.
A fix or a hint whats wrong would be very nice :-).
Cheers, Michael Obster --- mailto:michael@obster.org http://www.obster.org Mario Vanoni wrote: > the same with > 2.4.29-rc[123] > 2.4.28-lck1 > 2.4.23-aa3 > every time repeatable > > UP P4-3400HT, 2GB mem, no swap > IDE NEC DVD-RW ND-3500AG (dev/sr0) > > DVD with 48 files (*.tar.bz2), 4.4GB > > ntpdate -b swisstime.ethz.ch: offset 0.0... > time dircmp /mnt/cdrom /source > thinks it used 20 minutes, no errors > ntpdate -b ...: offset 1134 sec !!! > > SMP dual P3-550, 1GB mem, no swap > SCSI PIONER DVD-ROM DVD-304 (slot-in, /dev/sr0) > > same DVD, identical source (copied) > > ntpdate -b ...: offset 0.0... > time dircmp /mnt/cdrom /source > thinks it used 12 minutes, no errors > ntpdate -b ...: 0.020522 sec > > SMP dual Xeon-2800HT, 2GB mem, no swap > IDE NEC DVD-RW ND-2501A (/dev/sr0) > > same deviation, offset tons of seconds > this is the production, time must remain correct > > Burning CD/DVD with IDE burners, > there not exist SCSI burners, > similar retards of the system clock. > CD using cdrecord, DVD growisofs. > > Doing hwclock --show, time is always correct. > > Not in LKML, cc if you need, and ... thanks > > Mario > > PS We burn DVD only since 2 weeks, > before only CD and only on the SCSI machine, > and ... NO PROBLEM. >
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