Bug#521717: zaptel-source: "FXO PCI Master abort" while network/disk/cpu usage is high

[Xavier Douville]

Package: zaptel-source
Version: 1:1.4.11~dfsg-3
Severity: important

I have a X100P clone card using the wcfxo module. It doesn't share an
IRQ with any other driver. When I transfer files on the gigabit
connection (so that CPU, disk and network usage all becomes high), wcfxo
generate *tons* of these error message and syslogd takes a lot of CPU,
slowing my network transfer to almost 0. It takes less than a minute
of network transfer so that this bug appears. I did not notice this
problem before because I had slow 10GiB IDE drives (and so not a lot of
free space to make big transfers). Now I upgraded to 250GiB SATA
drives (raid1).

[28309.306467] FXO PCI Master abort

I get so much of these messages that the computer becomes unusable
until I remove the wcfxo module. I tried with and without asterisk
running.

My network card (eth1) use the skge driver and my sata controller
sata_sil if it can help.

cat /proc/interrupts

 CPU0
 0:         66   IO-APIC-edge      timer
 1:         14   IO-APIC-edge      i8042
 8:          2   IO-APIC-edge      rtc0
 9:          0   IO-APIC-fasteoi   acpi
 14:          0   IO-APIC-edge      ide0
 15:          0   IO-APIC-edge      ide1
 16:    8112836   IO-APIC-fasteoi   wcfxo
 17:   65401613   IO-APIC-fasteoi   eth1
 18:     861022   IO-APIC-fasteoi   sata_sil
 20:          2   IO-APIC-fasteoi   ehci_hcd:usb3
 21:     193095   IO-APIC-fasteoi
ohci_hcd:usb2, NVidia nForce2
 22:    3441855   IO-APIC-fasteoi   ohci_hcd:usb1, eth0
 NMI:          0   Non-maskable interrupts
 LOC:    1369494   Local timer interrupts
 RES:          0   Rescheduling interrupts
 CAL:          0   function call interrupts
 TLB:          0   TLB shootdowns
 TRM:          0   Thermal event interrupts
 SPU:          0   Spurious interrupts
 ERR:          0
 MIS:          0
 

Please let me know if you need more info.
thanks

-- System Information:
Debian Release: 5.0
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686 (SMP w/1 CPU core)
Locale: LANG=fr_CA.UTF-8, LC_CTYPE=fr_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages zaptel-source depends on:
ii  bzip2                         1.0.5-1    high-quality block-sorting file co
ii  debhelper                     7.0.15     helper programs for debian/rules
ii  module-assistant              0.10.11.0  tool to make module package creati

Versions of packages zaptel-source recommends:
ii  zaptel                   1:1.4.11~dfsg-3 zapata telephony utilities

zaptel-source suggests no packages.

-- no debconf information