[mythtv-users] mythbackend segmentation fault

[Kevin Kuphal]

Henrik Gammelmark wrote:
> I have narrowed the mythbackend errors down to whenever I enable more 
> than one tuner in mythtv-setup (no matter which one it seems), but I 
> still can't find any pattern in the seamingly randomly chosen errors:
>
> *** glibc detected *** double free or corruption (out): 0x081316d8 ***
>
> *** glibc detected *** corrupted double-linked list: 0x08141cf8 ***
>
> Segmentation fault
>
> I have tried recompiling mythtv, ivtv, and the ivtv firmware, and even 
> compiled the kernel also, just to be absolutely sure, it's the same 
> compiler!
>
> I also tried reinstalling the libc6, which supposedly is the one making 
> and/or reporting those nasty errors (?).
>
> I assume that glibc is merely reporting the errors, and not causing them?
>
>
> Henrik Gammelmark wrote:
>   
>> I tried removing the tuners from mythtv-setup, and the backend started 
>> fine, and started checking the jobqueue periodically as it should, and I 
>> was even able to perform a "mythfilldatabase".
>>
>> However, while running the mythfrontend, entering "watch tv", I got this 
>> similar error on the frontend:
>>
>>
>> 2006-07-05 21:09:32.158 Connected to database 'mythconverg' at host: 
>> localhost
>> 2006-07-05 21:09:32.257 Connecting to backend server: 127.0.0.1:6543 
>> (try 1 of 5)
>> 2006-07-05 21:09:32.259 Connection timed out.
>>                          You probably should modify the Master Server
>>                          settings in the setup program and set the
>>                          proper IP address.
>> 2006-07-05 21:09:35.445 TV: Attempting to change from None to None
>> *** glibc detected *** double free or corruption (!prev): 0x08214ce8 ***
>>
>>
>>
>> Henrik Gammelmark wrote:
>>
>>     
>>> I am installing MythTV for the first time, but I'm having problems with 
>>> starting mythbackend. I have recompiled three times, without any luck.
>>> I get either
>>> "*** glibc detected *** double free or corruption (out): 0x08131000 ***"
>>> or periodically "Segmentation fault" after which it crashes.
>>>
>>> I am able to record manually by "cat /dev/videoX > file.mpg" from all 
>>> tuners, ivtv reports no errors in dmesg, and I am able to use 
>>> mythtv-setup fine with tv-out, so I guess the cards and drivers should 
>>> be fine.
>>>
>>> Installing MythTV 0.91 (stable release) on Debian testing with 1 x 
>>> PVR-350 and 1 x PVR-500 with ivtv-drivers.
>>>
>>> I'm getting desperate here - what am I doing wrong?
>>> Thank you very much in advance
>>>
>>> If you need more information or verbose output, let me know!
>>>
>>>       
You really should be using the 0.19-fixes branch to be sure you're not 
encountering some long fixed bug

http://svn.mythtv.org

Kevin