Bug#532345: System freeze kernel log messages

[Tzafrir Cohen]

On Sun, Sep 13, 2009 at 08:45:08AM +0200, Raoul Bönisch wrote:
> Hallo!
> 
> Now I have to differentiate. There is the option "dchan" as
> opposed to "hardhdlc" in /etc/dahdi/system.conf. 

The older zaphfc and vzaphfc used dchan. The newer zaphfc uses hardhdlc.
(The bri_dchan patch, used by both older drivers, actually fakes
hardhdlc when dchan is used)

> This is my
> current system.conf:
> 
> 
> 
> $ cat /etc/dahdi/system.conf 
> # If you edit this file and execute /usr/sbin/dahdi_genconf
> again,
> # your manual changes will be LOST.
> # Dahdi Configuration File
> #
> # This file is parsed by the Dahdi Configurator, dahdi_cfg
> #
> # Span 1: ZTHFC1 "HFC-S PCI A ISDN card 1 [TE]" (MASTER) 
> 
> span=1,1,3,ccs,ami
> bchan=1-2
> hardhdlc=3
> # dchan = 3 ### System freeze!!! ###

With which driver?

E.g., what is the output of:  modinfo zaphfc

> 
> echocanceller=mg2,1-2
> loadzone        = de
> defaultzone     = de
> 
> 
> 
> I have compiled current SVN with original mainstream DAHDI
> 2.2.0.2 and it works with this system.conf. However when using
> the dchan I still get the system freeze.
> 
> With hardhdlc I can use the DAHDI driver and it works so far with
> the asterisk packages from Debian unstable.
> 
> So, yes, it can be reproduced, but all in all the package works
> for me. This is still an issue to track, I am afraid.

I've only recently replaced the old zaphfc with the newer one. 
I'm actually surprised hardhdlc worked before.

-- 
               Tzafrir Cohen
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