2.4.29: strange behaviour system clock
From: Mario Vanoni
Date: Sun Jan 30 2005 - 14:21:56 EST
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.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/