[asterisk-users] dahdi_dummy: Unable to register DAHDI rtc driver

[David Backeberg]

Hello there:

I think I have a silly kernel configuration problem. I'm running:
* vanilla 2.6.27.10 kernel built from source
* dahdi-2.1.0.4 built from source

So far so good,
dahdi module loads just fine:
dahdi: Telephony Interface Registered on major 196
dahdi: Version: 2.1.0.4

when I try to:
hal04 dahdi # modprobe dahdi_dummy
FATAL: Error inserting dahdi_dummy
(/lib/modules/2.6.27.10/dahdi/dahdi_dummy.ko): Input/output error

kernel messages gives me:
dahdi_dummy: Unable to register DAHDI rtc driver

I'm probably doing something silly here.

Then I was curious, so I backed up to a 2.6.25.9 kernel I already had,
and dahdi_dummy loaded just fine:
dahdi_dummy: RTC rate is 1024

Does anybody know whether:
* something changed in mainline kernel that breaks dahdi
* there was a new kernel parameter that I should have set differently?

No emergency, more like an observation. I'm just backing off kernel
version for now.