[mythtv-users] Upgrade to 0.23 menu navigation and content playback of .ISO DVD images seems to hang frontend

Rick Nickle ricknickle at hotmail.com
Thu May 6 03:42:36 UTC 2010


I'm replying to myself, trying to collect more data.  As I said, I'm
watching an .ISO that is on an NFS mount from a NAS box over gigabit
Ethernet.

 

Although some content seems to work for awhile, eventually things bog down,
especially on menus.

 

In this particular example, someone tried to watch a video a couple of hours
ago.  When I checked on the system it was hung.  I looked at the frontend
log and saw that it was just writing this message over and over:

 

2010-05-05 21:21:00.001 AFD Error: Unknown decoding error

2010-05-05 21:21:00.002 [mpeg2video @ 0x8564960]get_buffer() failed (stride
changed)

 

Here's a backtrace:

 

#0  0x0039c422 in __kernel_vsyscall ()

#1  0x003cab5d in pthread_join () from /lib/tls/i686/cmov/libpthread.so.0

#2  0x013c8396 in PlayerContext::SetNVP(NuppelVideoPlayer*) ()

   from /usr/lib/libmythtv-0.23.so.0

#3  0x013c4a79 in PlayerContext::TeardownPlayer() ()

   from /usr/lib/libmythtv-0.23.so.0

#4  0x013c48a7 in PlayerContext::~PlayerContext() ()

   from /usr/lib/libmythtv-0.23.so.0

#5  0x012f1f8c in TV::~TV() () from /usr/lib/libmythtv-0.23.so.0

#6  0x012d996d in TV::StartTV(ProgramInfo*, bool, bool, bool) ()

   from /usr/lib/libmythtv-0.23.so.0

#7  0x0807ce74 in ?? ()

#8  0x00a93be6 in MythMainWindow::HandleMedia(QString const&, QString
const&, QString const&, QString const&, QString const&, QString const&, int,
int, int, QString const&) () from /usr/lib/libmythui-0.23.so.0

#9  0x04df3fe0 in VideoPlayHandleMedia::Play() const ()

   from /usr/lib/mythtv/plugins/libmythvideo.so

#10 0x04df53ea in VideoPlayerCommandPrivate::Play() const ()

   from /usr/lib/mythtv/plugins/libmythvideo.so

#11 0x04df3aa7 in VideoPlayerCommand::Play() const ()

   from /usr/lib/mythtv/plugins/libmythvideo.so

#12 0x04d9d118 in ?? () from /usr/lib/mythtv/plugins/libmythvideo.so

#13 0x04dbc0f1 in ItemDetailPopup::OnPlay() ()

   from /usr/lib/mythtv/plugins/libmythvideo.so

#14 0x04dba159 in ItemDetailPopup::qt_metacall(QMetaObject::Call, int,
void**)

    () from /usr/lib/mythtv/plugins/libmythvideo.so

#15 0x01c14c9a in QMetaObject::metacall(QObject*, QMetaObject::Call, int,
void**) () from /usr/lib/libQtCore.so.4

#16 0x01c233d5 in QMetaObject::activate(QObject*, QMetaObject const*, int,
void**) () from /usr/lib/libQtCore.so.4

#17 0x00bb986b in MythUIButton::Clicked() () from
/usr/lib/libmythui-0.23.so.0

#18 0x00aee886 in MythUIButton::Push(bool) () from
/usr/lib/libmythui-0.23.so.0

#19 0x00aee6b7 in MythUIButton::keyPressEvent(QKeyEvent*) ()

   from /usr/lib/libmythui-0.23.so.0

#20 0x00ad0cf3 in MythScreenType::keyPressEvent(QKeyEvent*) ()

 

But here's something else curious.  I looked at /proc/1661/fd to see what
file descriptors were open.  There were lots and lots of them.

 

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/83 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/84 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/85 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/86 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/87 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/88 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/89 ->
/dev/snd/controlC0

l-wx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/9 -> pipe:[9058]

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/90 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/91 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/92 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/93 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/94 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/95 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/96 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/97 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/98 ->
/dev/snd/controlC0

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/99 ->
/dev/snd/controlC0

 

That's a lot of snd devices, why so many?  I have over 160 of these things
open.

 

If I excise those (and the sockets and pipes, which I'll omit for brevity, I
had 15 sockets and 22 pipes associated with the frontend, a lot of them easy
to account for, like connections to SQL, etc.)

 

lr-x------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/0 -> /dev/null

l-wx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/1 ->
/var/log/mythtv/mythfrontend.log

lr-x------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/149 ->
/mnt/nas1/ISO/video.ISO

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/151 ->
/dev/dri/card0

lr-x------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/157 ->
/dev/snd/timer

lrwx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/158 ->
/dev/snd/pcmC0D0p

l-wx------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/2 ->
/var/log/mythtv/mythfrontend.log

lr-x------ 1 user group 64 2010-05-05 23:22 /proc/1661/fd/30 ->
/tmp/mythtv_media

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mythtv.org/pipermail/mythtv-users/attachments/20100505/7ebbe5d7/attachment.htm>


More information about the mythtv-users mailing list