music apps doesn't find any files

[Josué]

Some times Music app doesn't find any files.
List appear empty.

Here is a part of the log:

Failed to retrieve rows: database is locked
"ThumbnailerRequestImpl::dbusCallFinished(): D-Bus error: Handler::check_finished(): no artwork for album: Mago de Oz/La Leyenda de la Mancha (512,512): FAILED PREVIOUSLY"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "ThumbnailerRequestImpl::dbusCallFinished(): D-Bus error: Handler::check_finished(): no artwork for album: Mago de Oz/La Leyenda de la Mancha (512,512): FAILED PREVIOUSLY"
Error finalising statement: Could not finalize statement: database is locked
Failed to retrieve rows: database is locked
"Request cancelled"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Request cancelled"
"Request cancelled"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Request cancelled"
"Request cancelled"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Request cancelled"
"Request cancelled"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Request cancelled"
"Request cancelled"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Request cancelled"
libust[18456/18491]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18492]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)
UbuntuWindow::handleSurfaceFocusChange(focused=false)
** Application is now inactive
libust[18456/18491]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18492]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18491]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18492]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18491]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18492]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18491]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18492]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18491]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[18456/18492]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)

I usually have other crashes with the app so I don't know if it is related with them.

Tell me if you need more information.

[Victor Thompson (vthompson)]

Hi, thanks for taking the time to file this issue and for making Ubuntu better. Personally, I'm not sure what the issue is, but it seems like a thumbnailer issue--which I wouldn't normally expect being responsible for preventing items from being listed.

Could you provide the following log file (so we can see all crashes):

/home/phablet/.cache/upstart/application-click-com.ubuntu.music_music_*.log

Here are some of the odd parts of the log:

ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "ThumbnailerRequestImpl::dbusCallFinished(): D-Bus error: Handler::check_finished(): no artwork for album: Mago de Oz/La Leyenda de la Mancha (512,512): FAILED PREVIOUSLY"
Error finalising statement: Could not finalize statement: database is locked
Failed to retrieve rows: database is locked
"Request cancelled"
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Request cancelled"
"Request cancelled"

[Andrew Hayzen (ahayzen)]

'Database is locked' suggests mediascanner2 is running and has not released for clients yet. Either it is still scanning, it is looping over a file or it has crashed and a restart may assist the issue.

[Josué (j2g2rp)]

Yes it looks like that.
As suggested in the bug https://bugs.launchpad.net/ubuntu/+source/mediascanner2/+bug/1508142 I read the mediascan file and i saw some errors with some videos ,In my case there wasn’t any *.webm files but i tried to delete them. It worked fine, mediascaner looks working fine and app won't crash any more since then. Last week I tried to put those videos again (after OTA 8) and it looks working fine =)

[Josué (j2g2rp)]

Yesterday happened again to me, but looks like this time isn't related with the database, since i can't read it in the log.
Attached you will find the log of music app.
I have other logs if they become necesary.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Scott Hodgson (lgnux)]

Bug #1599784 merge