TBS Driver Interrupts

The TBS drivers needs to be enabled to use the PCI-MSI interrupts, as opposed to standard IRQ interrupts which it does by default.

After a few channel lockups, I noticed this in syslog:
Jan 17 04:08:08 wilfrodo kernel: [24621.425926] irq 18: nobody cared (try booting with the "irqpoll" option)
and lots of these:
Jan 17 18:14:47 wilfrodo tvheadend[881]: TS: TurboSight TBS 6985 DVBS/S2 frontend/ASTRA: 10,714,000 kHz Horizontal (No satconf)/More4 +1: MPEG2VIDEO @ #2367: Continuity counter error, 395 duplicate log lines suppressed
Jan 17 18:14:47 wilfrodo tvheadend[881]: TS: TurboSight TBS 6985 DVBS/S2 frontend/ASTRA: 10,714,000 kHz Horizontal (No satconf)/More4 +1: DVBSUB @ #2371: Continuity counter error, 6 duplicate log lines suppressed

So, the resolution is:
# cat /etc/modprobe.d/tbs.conf
options saa716x_tbs-dvb int_type=1

reboot, and hopefully you will see the card using the PCI-MSI interrupts now, and the issue should be fixed.

root@wilfrodo:~# cat /proc/interrupts
           CPU0
  0:         49   IO-APIC-edge      timer
  1:          2   IO-APIC-edge      i8042
  6:          2   IO-APIC-edge      floppy
  7:          2   IO-APIC-edge      parport0
  8:          1   IO-APIC-edge      rtc0
  9:          3   IO-APIC-fasteoi   acpi
 12:          4   IO-APIC-edge      i8042
 14:          0   IO-APIC-edge      pata_atiixp
 15:          0   IO-APIC-edge      pata_atiixp
 16:        483   IO-APIC-fasteoi   ohci_hcd:usb2
 17:          2   IO-APIC-fasteoi   ohci_hcd:usb3, ohci_hcd:usb5
 18:          2   IO-APIC-fasteoi   ohci_hcd:usb4, ohci_hcd:usb6
 19:          3   IO-APIC-fasteoi   ehci_hcd:usb1
 22:      31878   IO-APIC-fasteoi   ahci
 43:     166751   PCI-MSI-edge      radeon
 44:     379215   PCI-MSI-edge      SAA716x Core
 45:        709   PCI-MSI-edge      snd_hda_intel
 46:      93290   PCI-MSI-edge      SAA716x Core
 47:     565591   PCI-MSI-edge      eth0
NMI:        201   Non-maskable interrupts
LOC:    1578108   Local timer interrupts
SPU:          0   Spurious interrupts
PMI:        201   Performance monitoring interrupts
IWI:          0   IRQ work interrupts
RTR:          0   APIC ICR read retries
RES:          0   Rescheduling interrupts
CAL:          0   Function call interrupts
TLB:          0   TLB shootdowns
TRM:          0   Thermal event interrupts
THR:          0   Threshold APIC interrupts
MCE:          0   Machine check exceptions
MCP:         10   Machine check polls
ERR:          1
MIS:          0