[linux-dvb] S2API: problem unloading dvb_ttpci

Klaus Schmidinger Klaus.Schmidinger at cadsoft.de
Sat Dec 13 13:56:21 CET 2008


On 22.11.2008 13:23, Klaus Schmidinger wrote:
> On 22.11.2008 13:07, Klaus Schmidinger wrote:
>> I'm making my first steps in using the S2API driver, and already
>> have a problem. When trying to do
>>
>>   /sbin/rmmod dvb_ttpci
>>
>> I get the error
>>
>>   ERROR: Removing 'dvb_ttpci': Device or resource busy
>>
>> 'lsmod' shows
>>
>>   Module                  Size  Used by
>>   dvb_ttpci             348748  0
>>
>> So who is using dvb_ttpci?
> 
> After rebooting and doing one more test, I got this when
> running /sbin/rmmod dvb_ttpci:
> 
> Nov 22 13:21:35 vdr2 kernel: saa7146: unregister extension 'dvb'.
> Nov 22 13:21:35 vdr2 kernel: PANIC: double fault, gdt at c2015000 [255 bytes]
> Nov 22 13:21:35 vdr2 kernel: double fault, tss at c2017780
> Nov 22 13:21:35 vdr2 kernel: eip = f7881416, esp = bf88921e
> Nov 22 13:21:35 vdr2 kernel: eax = f7881408, ebx = f6df6cc8, ecx = f7401a7f, edx = f788144d
> Nov 22 13:21:35 vdr2 kernel: esi = f7881409, edi = f79231c1
> 
> Looks like the S2API driver isn't in a state where it can actually be used, yet...

Just for the record: it turned out that there was a mixup between DVB driver
files from my SUSE 11.0 installation and the self-compiled driver source.
After making sure only the self-compiled driver files were loaded, I was
able to load/unload the S2API driver.

Sorry about the noise...

Klaus



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