Summary:ASTERISK-01681: Zaptel crashes or hangs system on FC2 2.6 Kernel
Reporter:sbingner (sbingner)Labels:
Date Opened:2004-05-23 18:57:39Date Closed:2011-06-07 14:00:27
Versions:Frequency of
Environment:Attachments:( 0) crashdump.txt
( 1) hangdump.txt
Description:Some kernels will crash as soon as zaptel is loaded, others will not crash until zaptel has been used a while.  When it crashes, it either spews repeats of "hangdump.txt" until the computer is manually rebootes (reset button), or spews a bunch of the same as hangdump.txt then outputs what is in "crashdump.txt"


System info:
P4-2GHz Celeron
TDM400P Card not sharing an IRQ, on IRQ 5

Freshmaker version: 63
Freshmaker passed register test
Module 0: Installed -- AUTO FXO
Module 1: Installed -- AUTO FXS
Module 2: Installed -- AUTO FXS
Module 3: Installed -- AUTO FXS
Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules)
Comments:By: Mark Spencer (markster) 2004-05-23 19:34:53

Can you disable the preemptable kernel?

By: sbingner (sbingner) 2004-05-23 23:28:11

Forgot to attach second textfile, but it's pretty much same as beginning of the hangdump

Um, disable preemption?   I've not had luck figuring out how to do that yet but I'm looking...

By: sbingner (sbingner) 2004-05-23 23:40:20

[root@agiel build]# grep PREEMPT /lib/modules/2.6.5-1.358/build/.config
# CONFIG_PREEMPT is not set

It looks like it's already disabled...
same thing if I look in /boot/config-2.6.5-1.358

By: sbingner (sbingner) 2004-05-24 03:42:38

Well I compiled a vanilla 2.6.6 kernel, with only options I need enabled and it seems to be pretty stable so far.   If it dosn't crash, then it would seem the problem is an imcompatibility with either an option I didn't select or a patch on the fedora version of the kernel.

By: Mark Spencer (markster) 2004-05-24 14:15:06

how's it looking?  i will try to get an FC2 system running here.

By: sbingner (sbingner) 2004-05-24 22:29:23

It has yet to blow up on the vanilla kernel...

By: mochouinard (mochouinard) 2004-05-30 19:18:28

With default Fedora core 2 I also had problem, it crashed after calls and stuff. It worked alittle, but always ended to crash, I dont have another TDM board to play with. (2 FXS and 2 FXO)

By: sbingner (sbingner) 2004-05-30 22:58:47

Workaround until the problem with either the FC2 kernel or * is located, is to recompile a vanilla kernel.... it's been working fine since 5-23-04 with no crashes on FC2 with vanilla kernel.  I did of course only compile in the options I wanted, but that was quite a few options.   The other thing to note, is that I now have APIC enabled where with the default install APIC was not being enabled.   You can probably enable it through a kernel paramater, and that may help.

By: Mark Spencer (markster) 2004-06-03 00:42:54

is it possible the fedora kernel is really compiled preemptive?

By: Mark Spencer (markster) 2004-06-06 17:23:30

Unless someone has something to add here, I'll just suspend this as a "Fedora Core 2 weirdness"