[asterisk-users] zaptel/ssh interaction

[Eric "ManxPower" Wieling]

Greg Woods wrote:
> I hope I don't get flamed the first time I post to a new list. I have
> spent a couple of hours poking around without seeing anything like this.
> 
> The problem is, as soon as I load the Zaptel drivers (with a TDM-31B
> card), ssh into or out of the server is broken. Trying to ssh in, I get:
> 
> RSA_public_decrypt failed: error:0407006A:rsa
> routines:RSA_padding_check_PKCS1_type_1:block type is not 01
> key_verify failed for server_host_key
> 
> If I try to ssh out, I get:
> 
> hash mismatch
> key_verify failed for server_host_key
> 
> This makes administering the server remotely impossible, so it's a
> fairly large problem for me right now. Anybody ever seen anything like
> this? It is easy to reproduce: "modprobe zaptel" and it's broken.
> "modprobe -r zaptel" and it works fine.
> 
> Also, and probably somehow related, when the zaptel drivers are loaded,
> the sound through the sound card is screwed up. I can still hear it, but
> there are extraneous beeps, crackles and pops in it.
> 
> Aside from this, I love my new asterisk system, and my wife has almost
> gotten used to having to dial 9 to get out of the house :-)

I suspect IRQ Sharing.  "cat /proc/interrupts" to see.  If you are 
seeing more than 1 device on the same IRQ, see the mailing list archives 
on ways to resolve this.