[asterisk-users] Asterisk 1.2 + Zaptel 1.4 + HPEC = Crash?

[Nic Bellamy]

Trevor Peirce wrote:
> Has anyone tried the combination of asterisk 1.2.24, zaptel 1.4.5 and 
> HPEC 9.00.003?
>   
[snip]
> The result is a kernel panic followed by an automatic reboot.  Nothing 
> is written to log files so I cannot provide any debug information.  As 
> mentioned this has happened on multiple production machines and I do not 
> have any other "wctdm" cards to test with.
>   
Although I can't say for certain that it's not Asterisk 1.2 vs. Zaptel 
1.4 causing your issues, I've had crashes with HPEC on Zaptel 1.2 as 
well, and finally tracked these down to the HPEC binary overwriting bits 
of memory it shouldn't be touching.

It may be the case that it's doing this for you on Zaptel 1.2, but due 
to code differences, isn't overwriting anything critical (for me, the 
crashes only started once we moved from kernel 2.6.15.7 to 2.6.20.x - 
the memory layout changed, HPEC would quickly corrupt the free list, and 
things would go boom upon the second deallocation of an HPEC EC).

I've been working with Digium to get this found and fixed, so with luck 
there'll be an updated HPEC sometime reasonably soon.

Cheers,
    Nic.

-- 
Nic Bellamy,
Head Of Engineering, Vadacom Ltd - http://www.vadacom.co.nz/