[linux-dvb] FDSR messages

Manu Abraham manu at kromtek.com
Tue Apr 12 13:37:36 CEST 2005


David Sobon wrote:
> On Apr 12, 2005 11:43 AM, Hamish Moffatt <hamish at cloud.net.au> wrote:
> 
>>Do you get any FBUS errors in addition to the FDSR errors?
> 
> 
> Yes, it seems to happen right after starting the stream dump when the
> HD spins up, or if I switch virtual desktops or scroll around the
> virtual screen.
> 
> Maybe that explains why I always get weird A / V sync issues. or
> mplayer's fault. bleh.
> 
> Mar 25 00:20:02 gearbox kernel: bt878(0): irq FTRGT FBUS risc_pc=01708128
> Mar 28 20:25:01 gearbox kernel: bt878(0): irq FTRGT FBUS risc_pc=01708168
> Mar 31 23:45:08 gearbox kernel: bt878(0): irq FTRGT FBUS risc_pc=017080f8
> Mar 31 23:45:16 gearbox kernel: bt878(0): irq FTRGT FBUS risc_pc=01708038
> Apr  9 00:00:03 gearbox kernel: bt878(0): irq FTRGT FBUS risc_pc=1faca008
> Apr  9 00:00:03 gearbox kernel: bt878(0): irq FDSR FBUS risc_pc=1faca008
> Apr  9 00:00:03 gearbox kernel: bt878(0): irq FDSR FBUS risc_pc=1faca008
> 
> 
>>For me, FBUS was the main problem. It means that the buffers in the
>>BT878 overflowed, because the PCI bus is too busy doing other things.
>>
>>See what else you have on the same PCI bus (using lspci). In my case the
>>on-board SATA controller was on the same PCI bus as the slots, so when I
>>did much access to a SATA disk I got FBUS errors.
> 
> 
> How can I tell if it's on the same bus? same irq? Not using SATA here.
> 
> procinfo shows:
> irq  0: 327576176 timer                 irq 16:  22981007 eth0, mga at PCI:1:0:0  
> irq  1:    264741 i8042                 irq 17:   2885663 bttv0, bt878         
> irq  8:  11302046 rtc                   irq 18:   2395942 bttv1, bt878         
> irq  9:         0 acpi                  irq 19:    410297 Ensoniq AudioPCI     
> irq 14:  24775224 ide0                  irq 21:   4050071 uhci_hcd, uhci_hcd,  
> irq 15:    721948 ide1    
> 
> I do have an analog card (irq == 18) in there aswell.
> 

Try removing the analog card and let's see what happens..

Manu




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