Something Wicked (with my hdwr clock) This Way Comes
Dean S. Messing
deanm at sharplabs.com
Thu Dec 27 23:18:23 UTC 2007
Aaron Konstam wrote:
: On Thu, 2007-12-27 at 01:36 -0800, Dean S. Messing wrote:
: > As root, I just tried doing: `hwclock --show' for the first time on my
: > new Dell Precision 490 running F7 and it just hung. Cntl-C broke me out.
: >
: > I then tried `hwclock --show --debug' and got:
: >
: > hwclock from util-linux-2.13-pre7
: > Using /dev/rtc interface to clock.
: > Last drift adjustment done at 1198717263 seconds after 1969
: > Last calibration done at 1198717263 seconds after 1969
: > Hardware clock is on UTC time
: > Assuming hardware clock is kept in UTC time.
: > Waiting for clock tick...
: > /dev/rtc does not have interrupt functions.
: > Waiting in loop for time from /dev/rtc to change
:
: Yout problem is (compared to my results) on the line /dev/rtc does not
: have interrupt function.
: The end of my output is as follows:
:
: --Hardware clock is on local time
: Assuming hardware clock is kept in local time.
: Waiting for clock tick...
: ...got clock tick
: Time read from Hardware Clock: 2007/12/27 08:00:14
: Hw clock time : 2007/12/27 08:00:14 = 1198764014 seconds since 1969
: Thu 27 Dec 2007 08:00:14 AM CST -0.605349 seconds
:
: I would then look at the characteristics of /dev/rtc for the answer.
: On my machine:
: [root at cyrus ~]# ls -l /dev/rtc
: crw-r--r-- 1 root root 10, 135 2007-12-27 01:37 /dev/rtc
On my system:
[root at medulla ~]# ls -l /dev/rtc
crw-r--r-- 1 root root 10, 135 2007-12-26 17:04 /dev/rtc
Would you post (or send me in private mail) the output of
uname -r please?
Mine:
[root at medulla ~]# uname -r
2.6.23.8-34.fc7
I wonder if this is a kernel bug?
When I search in "/var/log/dmesg" for "Real Time" I get the
following (with surrounding context):
ACPI Exception (processor_core-0818): AE_NOT_FOUND, Processor Device is not present [20070126]
ACPI Exception (processor_core-0818): AE_NOT_FOUND, Processor Device is not present [20070126]
ACPI Exception (processor_core-0818): AE_NOT_FOUND, Processor Device is not present [20070126]
ACPI Exception (processor_core-0818): AE_NOT_FOUND, Processor Device is not present [20070126]
Real Time Clock Driver v1.12ac
hpet_resources: 0xfed00000 is busy
Non-volatile memory driver v1.2
Linux agpgart interface v0.102
Search on "clock" also turns up (with context):
hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
hpet0: 3 64-bit timers, 14318180 Hz
Time: tsc clocksource has been installed.
pnp: 00:01: ioport range 0x800-0x85f has been reserved
pnp: 00:01: ioport range 0xc00-0xc7f has been reserved
pnp: 00:01: ioport range 0x860-0x8ff has been reserved
I'm not sure what any this means. "hpet" is the "high precision timer"
and the
hpet_resources: 0xfed00000 is busy
line is suspicious. I don't know what AE_NOT_FOUND refers to.
Anyway, I'm at the end of my knowledge here, but would very much
like to find a solution.
Thanks for your help.
Dean
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