Bug#532345: System freeze kernel log messages

[Raoul Bönisch]

Hi again!

* Tzafrir Cohen <tzafrir.cohen at xorcom.com> [2009-09-13 09:22]:
> On Sun, Sep 13, 2009 at 08:45:08AM +0200, Raoul Bönisch wrote:


> > hardhdlc=3
> > # dchan = 3 ### System freeze!!! ###
> 
> With which driver?
> 
> E.g., what is the output of:  modinfo zaphfc

This is the new driver I am using right now and it works fine
with asterisk:

$ modinfo zaphfc
filename:       /lib/modules/2.6.31-rc8/dahdi/zaphfc/zaphfc.ko
license:        GPL
author:         Jens Wilke <jw_vzaphfc at headissue.com>, Daniele
(Vihai) Orlandi <daniele at orlandi.com>, Jose A. Deniz
<odicha at hotmail.com>
description:    HFC-S PCI A ISDN
alias:          pci:v0000182Dd00003069sv*sd*bc*sc*i*
alias:          pci:v0000114Fd00000073sv*sd*bc*sc*i*
alias:          pci:v0000114Fd00000072sv*sd*bc*sc*i*
alias:          pci:v0000114Fd00000071sv*sd*bc*sc*i*
alias:          pci:v0000114Fd00000070sv*sd*bc*sc*i*
alias:          pci:v000015B0d00002BD0sv*sd*bc*sc*i*
alias:          pci:v00001051d00000100sv*sd*bc*sc*i*
alias:          pci:v00000871d0000FFA1sv*sd*bc*sc*i*
alias:          pci:v00000871d0000FFA2sv*sd*bc*sc*i*
alias:          pci:v00001043d00000675sv*sd*bc*sc*i*
alias:          pci:v000013D1d00002BD1sv*sd*bc*sc*i*
alias:          pci:v00001397d0000B100sv*sd*bc*sc*i*
alias:          pci:v00001397d0000B00Csv*sd*bc*sc*i*
alias:          pci:v00001397d0000B00Bsv*sd*bc*sc*i*
alias:          pci:v00001397d0000B00Asv*sd*bc*sc*i*
alias:          pci:v00001397d0000B009sv*sd*bc*sc*i*
alias:          pci:v00001397d0000B008sv*sd*bc*sc*i*
alias:          pci:v00001397d0000B007sv*sd*bc*sc*i*
alias:          pci:v00001397d0000B006sv*sd*bc*sc*i*
alias:          pci:v00001397d0000B000sv*sd*bc*sc*i*
alias:          pci:v00001397d00002BD0sv*sd*bc*sc*i*
depends:        dahdi
vermagic:       2.6.31-rc8 SMP mod_unload modversions 
parm:           modes:[Deprecated] bit-mask to configure NT mode
(int)
parm:           nt_modes:Comma-separated list of card IDs to
configure in NT mode (array of int)
parm:           force_l1_up:Don't allow L1 to go down (int)

I have successfully used this driver in official 2.6.30-1-amd64, too.
The 2.6.31-r8 I have to use because of the Nouveau graphics
driver of which I want the latest version and there were serious
issues with it when compiled with older kernels.


> > 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.

Sorry, I think I did not describe that clearly. With the old
driver, I tried some different hfc patches, the option "dchan"
lead to a system freeze, but the option hardhdlc did not.
However, the old drivers never worked. There was an error with
the hardhdlc option and I think it was because hardhdlc was never
supported. So no phone calls possible with the old stuff. Only
the zaptel driver worked for me in old days. But this is really
long time ago.

With the new driver, see modinfo zaphfc above, there is still the
system freeze with the "dchan" option, but the hardhdlc option
makes things work, at least with the recent asterisk packages.
Calls in and out work ok and the sound is good most of the time.

I experience persistent sound clutter on some calls occasionally,
but that might not be the driver's or asterisk's fault. It might
be my telco or my phone hardware installation locally.