[Asterisk-Users] Re: E100P driver overwrites memory used bye linux-kernel

Steffen Koepf taxman-ml at opaya.de
Fri Nov 21 03:22:30 MST 2003


Hi,

i did some tests. If the kernel modules are loaded

Module                  Size  Used by    Not tainted
wct1xxp                11488  31
zaptel                176256  64  [wct1xxp]
ppp_generic            19068   0  [zaptel]
slhc                    5392   0  [ppp_generic]

and the E1 is connected to the PBX, everything is ok.

Then i started asterisk, it opens the D-Channel and
everything is still ok. I left the system in this state
and it survived one night without problems. But immediately
after the first call (B-Channel) the system memory is overwritten
and bad things happen. 
I looked through the wct1xxp.c and it looks like the D-Channel
(HDLC) is handled between hardware and driver like the B-Channels
(no HDLC decoding in hardware), right?
That would mean that it is probably software problem. Is there a 
way to do some test calls without asterisk?

cu,

Steffen




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