asterisk users - Dec 2005 - Kernel upgrade causes ztdummy to refuse to run

Hello all,

I recently upgraded the kernel on one of the phone servers I have at home
(dual Xeon 2.4) from 2.6.11 to 2.6.14 in the usual way, copying the .config
file across and building the new kernel. Now ztdummy is refusing to run, and
gives the following errors in dmesg:

ztdummy: Unknown symbol rtc_register
ztdummy: Unknown symbol rtc_unregister
ztdummy: Unknown symbol rtc_control

Which I assume to mean something about the RTC config has changed. The only
options I can find relating to this in the kernel config are:
"Enhanced Real Time Clock Support"
"Generic /dev/rtc emulation"

Enabling Enhanced RTC Support, rebuilding the kernel and restarting allows
ztdummy to load, but dmesg is loaded with messages about "rtc: lost some
interrupts at 1024Hz". Thousands of 'em every few seconds. I also
notice
asterisk spiking between 5 and 25% CPU even with no calls or other activity
going on.

The second option (generic /dev/rtc) doesn't seem to affect the ztdummy
error at all.

I know ztdummy definitely worked fine with 2.6.11 and I wasn't getting rtc
errors in the logs. Nothing has changed on the hardware.

Any suggestions gratefully appreciated.

Regards,

Chris
-- 
C.M. Bagnall, Director, Minotaur I.T. Limited
This email is made from 100% recycled electrons

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Chris Bagnall wrote:
> Hello all,
> 
> I recently upgraded the kernel on one of the phone servers I have at home
> (dual Xeon 2.4) from 2.6.11 to 2.6.14 in the usual way, copying the .config
> file across and building the new kernel. Now ztdummy is refusing to run,
and
> gives the following errors in dmesg:
> 
> ztdummy: Unknown symbol rtc_register
> ztdummy: Unknown symbol rtc_unregister
> ztdummy: Unknown symbol rtc_control
> 
> Which I assume to mean something about the RTC config has changed. The only
> options I can find relating to this in the kernel config are:
> "Enhanced Real Time Clock Support"
> "Generic /dev/rtc emulation"
> 
> Enabling Enhanced RTC Support, rebuilding the kernel and restarting allows
> ztdummy to load, but dmesg is loaded with messages about "rtc: lost
some
> interrupts at 1024Hz". Thousands of 'em every few seconds. I also
notice
> asterisk spiking between 5 and 25% CPU even with no calls or other activity
> going on.
> 
> The second option (generic /dev/rtc) doesn't seem to affect the ztdummy
> error at all.
> 
> I know ztdummy definitely worked fine with 2.6.11 and I wasn't getting
rtc
> errors in the logs. Nothing has changed on the hardware.
> 
> Any suggestions gratefully appreciated.
> 
> Regards,
> 
> Chris
you need to recompile zaptel drivers... they use the kernel headers to
build and since you change the kernel headers by upgrading your
kernel... time to recompile

cd /usr/src/zaptel
make clean; make install
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