[linux-dvb] IRQ Lockup problem

[Peter Henderson <peter.henderson@starjar.com>]

Hi List.

I now have my Avermedia 771 working to some degree. I can open and view 
channels in Mythtv.

But.
After a period of time, approx 10sec to 30 min, but normally within a 
minute, video streaming stops,


My dmesg reveals
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): IRQ lockup, cleared int mask


Can anyone suggest where I look to fix this problem.
I've tried moving the dvb card to different pci slots which changes it 
irq assignment. Although I cant seem to get it on its own IRQ something 
(BIOS? kernel?) likes to share it all the time. Currently its shared 
with a network card, which has minimal traffic on it...

Peter.


Linux video capture interface: v1.00
bttv: driver version 0.9.15 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
PCI: Found IRQ 11 for device 0000:00:0f.0
PCI: Sharing IRQ 11 with 0000:00:0d.0
PCI: Sharing IRQ 11 with 0000:00:0f.1
bttv0: Bt878 (rev 17) at 0000:00:0f.0, irq: 11, latency: 32, mmio: 
0xdd002000
bttv0: detected: AVermedia DVB-T 771 [card=123], PCI subsystem ID is 
1461:0771
bttv0: using: AVerMedia AVerTV DVB-T 771 [card=123,autodetected]
bttv0: gpio: en=00000000, out=00000000 in=00fcff0f [init]
bttv0: using tuner=4
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 .. ok
bttv0: add subdevice "dvb0"
bt878: AUDIO driver version 0.0.0 loaded
bt878: Bt878 AUDIO function found (0).
PCI: Found IRQ 11 for device 0000:00:0f.1
PCI: Sharing IRQ 11 with 0000:00:0d.0
PCI: Sharing IRQ 11 with 0000:00:0f.0
bt878(0): Bt878 (rev 17) at 00:0f.1, irq: 11, latency: 32, memory: 
0xdd003000
attach: checking "bt878 #0 [hw]"
find by pci: checking "bt878 #0 [hw]"
attach: "bt878 #0 [hw]", to card 0
DVB: registering new adapter (Ave).
DVB: registering frontend 0:0 (DVB-T Zarlink MT352 demodulator driver 
PETER 2.1)...
bt878(0): irq FBUS risc_pc=15ba11a8
bt878(0): irq FBUS risc_pc=15ba11d0
bt878(0): irq FBUS risc_pc=15ba1060
bt878(0): irq FBUS risc_pc=15ba10a0
bt878(0): irq FBUS risc_pc=15ba1128
bt878(0): irq FBUS risc_pc=15ba1208
bt878(0): irq FBUS risc_pc=15ba10c0
bt878(0): irq FBUS risc_pc=15ba10c0
bt878(0): irq FBUS risc_pc=15ba10c8
bt878(0): irq FBUS risc_pc=15ba1108
bt878(0): irq FBUS risc_pc=15ba11c8
bt878(0): irq FBUS risc_pc=15ba1140
bt878(0): irq FBUS risc_pc=15ba11a8
bt878(0): irq FBUS risc_pc=15ba1080
bt878(0): irq FBUS risc_pc=15ba1040
bt878(0): irq FBUS risc_pc=15ba1080
bt878(0): irq FBUS risc_pc=15ba1130
bt878(0): irq FBUS risc_pc=15ba11e0
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): irq FBUS risc_pc=15ba1210
bt878(0): IRQ lockup, cleared int mask