1133365 - determine whether DXVA is running in a crash report

Status: RESOLVED FIXED

(Socorro :: Data request, task, P1)

Description

[Lonnen :lonnen]

We're looking to sample a few hundred crashes from the following signatures for Firefox 36 Beta:

moz_abort | pages_commit

D2DDeviceContextBase<ID2D1DeviceContext1, ID2D1DeviceContext1, null_type>::FillRectangle(D2D_RECT_F const*, ID2D1Brush*)

DrawingContext::FillRectangle(D2D_RECT_F const*, ID2D1Brush*)

for each crash we want to sort them into one of three buckets using the following criteria:

if (no threads in msmpeg2vdec.dll)
  => Not playing video
else if (appnote contains "D3D9Layers")
  if (1 or fewer threads in d3d9.dll)
    => Playing video without DXVA
  else
    => Playing video with DXVA
else
  if (1 or more threads in d3d9.dll)
    => Playing video with DXVA
  else
    => Playing video without DXVA

Comment 1

[Lonnen :lonnen]

I was able to grab UUID's with the following URL and a bit of python:

https://crash-stats.mozilla.com/api/SuperSearch/?product={PRODUCT}&version={VERSION}&signature={SIGNATURE}&results_number={SAMPLE_SIZE}

crashes = requests.get(url.format(**opts)).json()['hits']
uuids = [crash['uuid'] for crash in crashes]

but I couldn't figure out how to get the crashing threads from the UUIDs in python. I can grab them one at a time but we're looking at a hew hundred of these, minimum, so programmatic access is best.

Comment 2

[Benjamin Smedberg]

The thread list and module list is at ProcessedCrash.json_dump.threads

Comment 3

[[DEACTIVATED] Adrian Gaudebert]

Here comes the data! Hopefully the script I have written is correct, if not let me know and I can rerun it with corrections. If this is what you were expecting, please mark this bug as resolved! :-)

Script
======

https://gist.github.com/AdrianGaudebert/c05a8f7bd13fec9b7701

Note: this script uses SuperSearchUnredacted, which requires several permissions to be accessible. If you want to run it yourself, you'll have to get a Token from crashstats [0] and make sure you have the following permissions: view_pii and view_expoitability.

(Sadly, bug 1136145 prevented me from exposing the json_dump in Super Search, and I thus have not been able to do this with Spectateur [1]. :( )

[0] https://crash-stats.mozilla.com/api/tokens/
[1] https://spectateur.herokuapp.com/

Data
====

500 results were processed per signature, taken randomly across the last 2 weeks of data on production. In parentheses, the number of processed results and the total number of results for that signature.


> moz_abort | pages_commit (500 / 4507)
> -------------------------------------
> 
> DXVA off 	1
> DXVA on 	13
> no video 	486
> 
> D2DDeviceContextBase<ID2D1DeviceContext1, ID2D1DeviceContext1, null_type>::FillRectangle(D2D_RECT_F const*, ID2D1Brush*) (500 / 3633)
> -------------------------------------------------------------------------------------------------------------------------------------
> 
> DXVA off 	0
> DXVA on 	46
> no video 	454
> 
> DrawingContext::FillRectangle(D2D_RECT_F const*, ID2D1Brush*) (500 / 1688)
> --------------------------------------------------------------------------
> 
> DXVA off 	1
> DXVA on 	37
> no video 	462

Comment 4

[[DEACTIVATED] Adrian Gaudebert]

I now realize that I forgot to enforce the crashes being in a beta (I only added version=36.0). Should I rerun that with release_channel=beta?

Comment 5

[[DEACTIVATED] Adrian Gaudebert]

> 15:43 <bsmedberg> bug 1133365 is ajones/cpearce and maybe some others

CC'ing those who should be interested in this bug. :-)

Comment 6

[[DEACTIVATED] Adrian Gaudebert]

> 15:51 <bsmedberg> adrian: oh also Bas for DXVA

Sorry for the spam!

Comment 7

[[DEACTIVATED] Adrian Gaudebert]

In the absence of answers here, I'm going to mark it as resolved. Please reopen if you need more data from me!