[mythtv-users] mythbackend crashes every 6-7 hours

Rob Verduijn rob.verduijn at gmail.com
Tue Nov 2 05:49:23 UTC 2010


Oh btw

Defragging didn't do much good
xfs_db -c frag -r /dev/system/data2
actual 100214, ideal 1163, fragmentation factor 98.84%
xfs_db -c freesp -r /dev/system/data2
   from      to extents  blocks    pct
      1       1      70      70   0.00
      2       3      22      52   0.00
      4       7      41     240   0.00
      8      15     110    1256   0.01
     16      31    1372   22422   0.22
     32      63     979   36749   0.35
     64     127     769   67759   0.65
    128     255    5468  909456   8.75
    256     511      47   14417   0.14
    512    1023       6    5174   0.05
   1024    2047       1    1171   0.01
   2048    4095       1    3535   0.03
   4096    8191       2   10872   0.10
  16384   32767       4   98051   0.94
  32768   65535       5  226895   2.18
  65536  131071       6  492906   4.74
 131072  262143       8 1593529  15.34
 262144  524287       5 2106212  20.27
 524288 1048575       5 3630188  34.94
1048576 2097151       1 1168264  11.24

Rob Verduijn


2010/11/2 Rob Verduijn <rob.verduijn at gmail.com>

> Hello,
>
> You could be on to something here.
>
> There are indeed symlinks in the video storage directory that are circular
> I created them because mythweb kept complaining about them.
>
> I removed them now and now mythweb is complaining again when I click the
> video link.
>
> Error:Could not create a symlink to /data2/video/Movies/, the local
> MythVideo directory for this hostname (vimes). Please create a symlink to
> your MythVideo directory at data/video in order to use the video portions of
> MythWeb.
>
> And in the video storage folder mythweb has created a symbolic link to
> itself
> ie mythweb did : ln -s /data2/video/Movies /data2/video/Movies
>
> Not good either
>
> That's why I created the circular links, to keep mythweb from creating
> faulty links.
>
> Ok the circular links are gone and now there is a faulty link in the video
> storage directory.
> Mythweb no longer functions properly when clicking the video link.
> Mythbackend is running again, let's wait and see if it crashes out again.
>
> Rob Verduijn
>
> 2010/11/2 Gavin Hurlbut <gjhurlbu at gmail.com>
>
> ==23546== 1,063,660,288 bytes in 1,038,841 blocks are possibly lost in
>> loss record 4,125 of 4,125
>> ==23546==    at 0x402760A: malloc (in
>> /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
>> ==23546==    by 0x5E29F1A: qMalloc(unsigned int) (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5E7DEAE: QString::realloc(int) (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5E7EB65: QString::resize(int) (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5E81CB2: QString::expand(int) (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5E81E02: QString::insert(int, QChar const*, int) (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5EA52C2:
>> QAbstractFileEngineIterator::currentFilePath() const (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5EA5371:
>> QAbstractFileEngineIterator::currentFileInfo() const (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5EFB4F9: ??? (in /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5EB3906: ??? (in /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5EB3AAC: QDirIterator::next() (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==    by 0x5EAFC36: QDir::entryInfoList(QStringList const&,
>> QFlags<QDir::Filter>, QFlags<QDir::SortFlag>) const (in
>> /usr/lib/libQtCore.so.4.6.3)
>> ==23546==
>>
>> OK.  I have a question.
>>
>> Your video directory (as configured non-storage group)...  does it
>> have any symlinks in it that would possibly cause a cycle...  or do
>> you have many many files?   It seems you are in an infinite loop
>> filling memory.
>>
>> This is not normal :)
>>
>> If you are not sure what I mean...  then do:
>>
>> find /data2 -type l > /tmp/data2.txt
>>
>> And then check each of the reported links.  If any of them are -> . or
>> -> .. or the like, that could be a serious issue.
>
> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mythtv.org/pipermail/mythtv-users/attachments/20101102/ca3cf3b5/attachment.htm>


More information about the mythtv-users mailing list