** Changed in: canonical-devices-system-image
Assignee: John McAleely (john.mcaleely) => (unassigned)
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Title:
Playing video scope preview
** Changed in: media-hub (Ubuntu)
Assignee: Lorn Potter (lorn-potter) => (unassigned)
** Changed in: media-hub (Ubuntu RTM)
Assignee: Lorn Potter (lorn-potter) => (unassigned)
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logcat output when running mediaplayer-app only, without the preview
scope:
https://pastebin.canonical.com/166479/
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Title:
Playing video scope
Yeah, I'd start debugging the freeNode() function to see what it expects
and exactly why it's not coming back with a status of OK.
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Title:
commented out frameworks/av/media/libstagefright/ACodec.cpp:5041, which
is:
CHECK_EQ(mCodec->mOMX->freeNode(mCodec->mNode), (status_t)OK);
and it did not crash.
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Another thing to consider is why is watching a video in the scope
followed by the mediaplayer-app different than watching a video in the
mediaplayer-app two times in a row? That might also be something to
figure out what the difference is.
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Line #56 of the logcat output from comment #21 is definitely key. So
it's the cleanup of the MediaCodecDelegate that is having an issue. So
now to figure out the root cause of why this case is different when
previewing and then watching in mediaplayer-app, and why only on Turbo.
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that should be:
https://pastebin.canonical.com/165832/
for the second link in comment #20
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Title:
Playing video scope preview followed by
Here is the procedure without playing in media player (just preview and then
back out of the video scope - no crash)
https://pastebin.canonical.com/165831
android logcat:
https://pastebin.canonical.com/165833
I also got some more debug output from android side during the crash:
android logcat:
@Lorn: Have you been able to enable the debug messages in ACodec.cpp by
uncommenting N_DEBUG (or something close to that) at the top of the .cpp
file? I'd also recommend adding some of your own ALOGD messages and such
around the area to start debugging why this crash is happening.
Comparing a good
Loaded more android symbols:
(gdb) bt full
#0 __libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47
No locals.
#1 0xf693162e in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:55
_a1 = 0
_a3tmp = 6
_a1tmp = 0
_a3 = 6
Finally got something a tiny bit more descriptive.
47 ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S: No such file or
directory.
(gdb) bt full
#0 __libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47
No locals.
#1 0xf693162e in __GI_raise (sig=sig@entry=6) at
@Lorn: take a look at these instructions to get further debug symbols
across hybris. From the looks of the backtrace, it looks like it's
crashing on the Android side.
** Changed in: media-hub (Ubuntu)
Assignee: (unassigned) => Lorn Potter (lorn-potter)
** Changed in: media-hub (Ubuntu RTM)
Here's the link: https://wiki.ubuntu.com/Touch/Core/UbuntuDebugAndroid
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Title:
Playing video scope preview followed by playing video from
Program received signal SIGABRT, Aborted.
[Switching to Thread 0xe4b1e360 (LWP 30451)]
__libc_do_syscall () at ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47
47 ../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S: No such file or
directory.
(gdb) info thread
Id Target Id Frame
Not much better:
[II 2016-09-04 23:43:23.063275] [player_implementation.cpp:89@operator()]
Released display state: DisplayState::on
[DD 2016-09-04 23:43:23.580995] [ubuntu.cpp:111@Context] apparmor profile name:
unity8-dash
[DD 2016-09-04 23:43:23.581189] [ubuntu.cpp:112@Context]
@Lorn: Have you installed libc6-dbg?
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Title:
Playing video scope preview followed by playing video from
mediaplayer-app causes media-hub to
I cannot seem to get a debug build, debug symbols installed or any good
backtrace
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Title:
Playing video scope preview followed by playing video
This is what I can get:
[TT 2016-09-02 00:59:54.136978] [player_implementation.cpp:230@clear_wakelock]
[II 2016-09-02 00:59:54.137228] [player_implementation.cpp:249@clear_wakelock]
Clearing display wakelock.
[DD 2016-09-02 00:59:56.535177] [ubuntu.cpp:111@Context] apparmor profile name:
Sorry, it is turbo that goes to clear_wakelock and then crashes
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Title:
Playing video scope preview followed by playing video from
@Lorn: have you been able to get your own backtrace of the crash? It's
not happening for me in the latest build for krillin (rc-proposed #420).
So it's possible that this is a video driver-specific issue on turbo.
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Happens on my turbo (rc-proposed #169) but not on my nexus 4 (rc-
proposed #519)
Both have same version of media-hub (Version:
4.6.0+15.04.20160823-0ubuntu1)
Comparing both media-hub logs, on turbo it never gets to:
[TT 2016-09-01 01:42:19.191777]
[player_implementation.cpp:230@clear_wakelock]
Yeah same for me on turbo. It's less pronounced on other devices,
meaning it's a timing issue.
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Title:
Playing video scope preview followed by
It happens to me every time in turbo.
current build number: 130
device name: turbo
channel: ubuntu-touch/rc-proposed/meizu-pd.en
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Title:
Just saw this. I thought it wasn't a known problem. Good to know it's
already reported :)
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Title:
Playing video scope preview followed by
** Attachment added: "_usr_bin_media-hub-server.32011.crash"
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1598885/+attachment/4699415/+files/_usr_bin_media-hub-server.32011.crash
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** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Changed in: canonical-devices-system-image
Assignee: (unassigned) => John McAleely (john.mcaleely)
** Changed in: canonical-devices-system-image
Status: New => Triaged
** Changed in:
This happens every time for me on turbo on this image:
phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 117
device name: turbo
channel: ubuntu-touch/rc-proposed/ubuntu
last update: 2016-07-04 08:50:53
version version: 117
version ubuntu: 20160702
version device:
Confirming this can be triggered but only occasionally doesn't happen
all the time.
** Changed in: media-hub (Ubuntu)
Status: New => Confirmed
** Changed in: media-hub (Ubuntu RTM)
Status: New => Confirmed
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