1138671 - crash in pthread_kill [Camera] Device encounters a crash when scrubbing a video in preview mode.

Status: RESOLVED FIXED

(Firefox OS Graveyard :: Performance, defect)

Description

[Joshua Mitchell (Inactive)]

Attachment: logcat_20150302_1042.txt

This bug was filed from the Socorro interface and is 
report bp-901aff6a-ecae-445e-bf86-0adbc2150302.
=============================================================

This bug was requested here: https://bugzilla.mozilla.org/show_bug.cgi?id=1077642#c39


Description:
Camera app will crash when scrubbing (moving the timeline selector back and forth) the video in preview mode.


Repro Steps:
1) Update a Flame to 20150302010223
2) Launch camera App
3) Record a video and click on the preview 
4) Play the video, scrub the timeline back and forth

Actual:
Camera app will crash

Expected:
No crash

Environmental Variables:
Device: Flame Master (Flame, KK, Full-flash, nightly, 319mem)
Build ID: 20150302010223
Gaia: f34ce82a840ad3c0aed3bfff18517b3f6a0eb37f
Gecko: eea6188b9b05
Gonk: e7c90613521145db090dd24147afd5ceb5703190
Version: 39.0a1 (Master)
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:39.0) Gecko/39.0 Firefox/39.0


Repro frequency:  8/10
See attached: logcat, video: http://youtu.be/AMTHkrMUyf4

Comment 1

[Joshua Mitchell (Inactive)]

This issue also reproduces in 2.2 and 2.1

Device: Flame 2.2 (KK - Nightly - Full Flash - 319mem)
Build ID: 20150302002504
Gaia: 77609916ca5ab721150fab2b7bc5c37f43ee3a5a
Gecko: 27ab8aa34201
Gonk: e7c90613521145db090dd24147afd5ceb5703190
Version: 37.0 
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:37.0) Gecko/37.0 Firefox/37.0

Device: Flame 2.1 (KK - Nightly - Full Flash - 319mem)
Build ID: 20150302001220
Gaia: 5d3479fdd438412adee4452720856b6b771fe5cd
Gecko: 9bf4c663241f
Gonk: e7c90613521145db090dd24147afd5ceb5703190
Version: 34.0 (2.1)
Firmware Version: v18D-1
User Agent: Mozilla/5.0 (Mobile; rv:34.0) Gecko/34.0 Firefox/34.0

Comment 2

[Peter Bylenga [:PBylenga]]

NI on component owner for nomination and assignment.

Comment 3

[Kyle Huey (Exited; not receiving bugmail, old account, do not use)]

Do we have a stack?

Cervantes, do you think this could be related to our other Nuwa stuff?

Comment 4

[Cervantes Yu [:cyu] [:cervantes]]

The only place I can think of is that the cleaner thread uses pthread_kill() to check whether the exiting thread is really dead, but the memory pthread_t points to is free()'d and munmap()'d. We need the stack to tell.

Comment 5

[No-Jun Park [:njpark]]

This bug looks quite similar to bug 1099356 (probably a dup of this), which was caused by bug 1101826 (qc bug).  This used to be a low-frequency bug, but changed since the new seek mechanism was implemented.  see:
https://bugzilla.mozilla.org/show_bug.cgi?id=1099356#c11
https://bugzilla.mozilla.org/show_bug.cgi?id=1101826

Last week I was trying to get the ball rolling on this bug, but because it is qc dependent, sotaro says we might need to come up with our own fix.

Comment 6

[bhavana bajaj [:bajaj]]

We are following up in the CAF bug and may end up DUP'ing.

Comment 7

[bhavana bajaj [:bajaj]]

Eric, can Taipei QA give this a shot to see if this is reproducible on a nexus 5 L device and re-nom if so?

Comment 8

[Eric Chang [:ericcc] [:echang]]

Hi Hermes, Could you check this please.

Comment 9

[Hermes Cheng (inactive after July 27, 2015)]

(In reply to bhavana bajaj [:bajaj] from comment #7)
> Eric, can Taipei QA give this a shot to see if this is reproducible on a
> nexus 5 L device and re-nom if so?

For N5, it cannot be reproduced because of bug 1120780.

Comment 10

[Hermes Cheng (inactive after July 27, 2015)]

I cannot reproduce this issue on N5 with below master build.

* Env info:
Build ID               20150322160204
Gaia Revision          9b6f3024e4d0e62dd057231f4b14abe1782932ab
Gaia Date              2015-03-22 10:09:18
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/e730012260a4
Gecko Version          39.0a1
Device Name            hammerhead
Firmware(Release)      5.0
Firmware(Incremental)  eng.cltbld.20150322.191717
Firmware Date          Sun Mar 22 19:17:33 EDT 2015
Bootloader             HHZ12d

Comment 11

[Bobby Chien]

per comment 9, comment 10, and bug 1120780.