[Webkit-unassigned] [Bug 239635] MediaRecorder causes Network process crashed in about 10 minutes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=239635

--- Comment #6 from yuki uchida <rantarn0326 at gmail.com> ---
(In reply to youenn fablet from comment #4)
> Some info might be found here for taking a sysdiagnose:
> https://developer.apple.com/forums/thread/99634
> 
> I will retry today and see what I can get.
> One hypothesis is that as you regularly create blobs, the memory usage is
> growing in network process up to a point where it crashes, which triggers
> the web socket connection message.
> 
> For instance, I can see that there is a download option which triggers
> creating a big blob from the multiple smaller blobs created by
> MediaRecorder. Is the crash happening at this time?


thank you for reply. I sent crashlogs in email and feedback report(FB10003730).

> For instance, I can see that there is a download option which triggers
> creating a big blob from the multiple smaller blobs created by
> MediaRecorder. Is the crash happening at this time?

`network process crash` is be caused before download().

In additional, I tried to test without timeslice in MediaRecoder.start(). 
sample code is  below.
- without timeslice 
  - https://yuki-uchida.github.io/firebase-webrtc-sample/ 
- with timeslice
  - https://yuki-uchida.github.io/firebase-webrtc-sample/?timeslice=1000

if MediaRecorder start without tiimeslice, creating blob runs after MediaRecorder stop().
So that, certainly, there is no network process crash, but there is application crash.
In about 30minutes, Safari is frozen and crashed.

I am going to send also this crash logs you.

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