Crash on iOS - RTCSetVertexData

[Michael Siddi]

Hi, 

every once in a while my iOS app crashes with the following stacktrace:

#0

Crashed: com.apple.avfoundation.videodataoutput.bufferqueue

EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000038

0 WebRTC RTCSetVertexData + 11000

1 WebRTC RTCSetVertexData + 10876

2 AVFoundation -[AVCaptureVideoDataOutput _handleRemoteQueueOperation:] + 308

3 AVFoundation __47-[AVCaptureVideoDataOutput _updateRemoteQueue:]_block_invoke + 100

4 CoreMedia __FigRemoteOperationReceiverCreateMessageReceiver_block_invoke + 260

5 CoreMedia __FigRemoteQueueReceiverSetHandler_block_invoke.2 + 216

6 libdispatch.dylib _dispatch_client_callout + 16

7 libdispatch.dylib _dispatch_continuation_pop + 576

8 libdispatch.dylib _dispatch_source_latch_and_call + 204

9 libdispatch.dylib _dispatch_source_invoke + 820

10 libdispatch.dylib _dispatch_queue_serial_drain + 468

11 libdispatch.dylib _dispatch_queue_invoke + 652

12 libdispatch.dylib _dispatch_queue_serial_drain + 468

13 libdispatch.dylib _dispatch_queue_invoke + 652

14 libdispatch.dylib _dispatch_root_queue_drain_deferred_item + 248

15 libdispatch.dylib _dispatch_kevent_worker_thread + 816

16 libsystem_pthread.dylib _pthread_wqthread + 948

Any of you have an idea of what can be causing this issue?

My current revision is the one shipped with chrome 56 but it happened even with versions from 2 years ago.

[Kári Helgason]

Hi Michael, thanks for reporting this! 

Could you please file a bug in the tracker and cc me on it?

Please include information about the iOS version running on the device and the device model.

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[Michael Siddi]

Hi Karl, thanks for your answer!

I've filed a bug: https://bugs.chromium.org/p/webrtc/issues/detail?id=7454

Thanks!

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