[Asterisk-Users] Kernel upgrade causes ztdummy to refuse to run

[Sean Cook]

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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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