Dahdi. Unable to set channel

-- Requested transfer capability: 0x00 - SPEECH -- Called g1/01783126942 -- Moving call from channel 1 to channel 10 [Aug 12 07:55:43] WARNING[12522]: chan_dahdi.c:5199 dahdi_read: Unable to set channel 10 (index 0) to linear mode. [Aug 12 07:55:43] DEBUG[12522]: chan_dahdi.c:5235 dahdi_read: Short read (160/320), must be an event... [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:4934 dahdi_handle_event: Dunno what to do with event 0 on channel 10 [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:5235 dahdi_read: Short read (160/320), must be an event... [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:4934 dahdi_handle_event: Dunno what to do with event 0 on channel 10 [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:5235 dahdi_read: Short read (160/320), must be an event... [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:4934 dahdi_handle_event: Dunno what to do with event 0 on channel 10 [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:5235 dahdi_read: Short read (160/320), must be an event... [Aug 12 07:55:44] DEBUG[12522]: chan_dahdi.c:4934 dahdi_handle_event: Dunno what to do with event 0 on channel 10

What can be the Problem?

lenny*CLI> dahdi show status
Description                              Alarms     IRQ        bpviol     CRC4
Wildcard TE122 Card 0                    OK         10         0          0
lenny*CLI> core show version
Asterisk 1.4.24 built by root @ lenny on a x86_64 running Linux on 2009-07-04 12:19:26 UTC