[linux-dvb] Re: DVB driver sometimes locks up system when loading

[cwieninger@gmx.de]

Hi,

thanks for the reply.
I´m not sure yet, but perhaps I´ve found a solution. It seems, that a little overclocking 
solves the problem. I modified the FSB from 100Mhz to 103MHz. Since that, there was 
no problem, but I have to test this in detail the next days.

By the way: The same procedure solved the problem, that the machine sometimes 
freezed directly after power on before any bios output, which occurred only when the 
nova, was installed. I therefore switched to 103 MHz with the onboard jumpers, but set 
the bios settings to 100MHz. After that the problem was gone.
Now I also set the Bios entry to 103MHz. The cpu now runs at 825MHz, which is 
hopefully not to fast.

Thanks,

Christian Wieninger


Am 23 Apr 2004 um 19:28 hat Mikko Matilainen geschrieben:

"Christian Wieninger" <cwieninger@gmx.de> writes:

> since using a second budget card (Nova-S rev 1.1) for my VDR, I have
> sometimes strange problems when loading the dvb driver (version 2003-11-08)
> with 'make insmod'. Here´s what happens:
>
> ...
> make[1]: Wechsel in das Verzeichnis
> Verzeichnis »/usr/local/src/linux-dvb.2003-11-08/driver/av7110«
> insmod input; \
> insmod evdev; \
> insmod dvb-ttpci.o;
> Using /lib/modules/2.4.22/kernel/drivers/input/input.o
> Using /lib/modules/2.4.22/kernel/drivers/input/evdev.o
>
> After that, the machine is dead. Cursor is still blinking, but the keyboard
> does not respond anymore. One can only reset.

I've encountered this behaviour, too. I asked about it in this list some
time ago but got no answers. I have a Hauppauge DVB-C full-featured
card, and I'm using the same DVB drivers as you are. Every now and then
the system locks up completely while insmodding/reloading the modules,
and at the exact same position as in your case. After a reboot the
modules usually (though not always) load up fine. The system has a ASUS
TX97-XE motherboard with a 450 MHz K6-2 processor.

> What I´m wondering about is, that this has never occured when powering on by
> hand. It only seems to occur in the following situations:
> VDR boots up because of a timer. All works fine. VDR shuts down ok. VDR
> again boots up for the next timer. In that case the error occurs.

I keep my system running 24/7 so I can't comment on this.

> I´ve already swapped all pci cards without a solution. The same problem
> existed with an older driver. The shutdown by VDR is made with a simply
> "halt -p". System is SUSE 8.1 with vanilla kernel 2.4.22. Motherboard is an
> ASUS K7M with an Athlon 800.
>
> Any hints?

Unfortunately, I haven't found out what is going wrong there. However, I
tried the card in my desktop computer (Abit BE-6 with Celeron 800) with
the same drivers and couldn't get it to crash no matter how many times I
tried reloading the drivers. So I'm guessing there's some hardware
compatibility (or possibly power related?) issues there or maybe my card
just isn't working correctly. I would gladly hear educated guesses on
what's going wrong there.

-- 
Mikko    PGP public key fingerprint:
         8FC9 D413 3A31 95B3 6BEE  709B 494A 3EFB 9D36 4342



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