1808029 - Crash in [@ webrtc::RtpPacketizerH264::PacketizeStapA]

Status: NEW

(Core :: WebRTC: Audio/Video, defect, P3)

Description

[Byron Campen [:bwc]]

Crash report: https://crash-stats.mozilla.org/report/index/7d66ae0c-e1a5-4d40-888d-eda810221229

Reason: EXCEPTION_BREAKPOINT

Top 10 frames of crashing thread:

0  KERNELBASE.dll  void wil::details::DebugBreak  
1  xul.dll    third_party/libwebrtc/rtc_base/checks.cc:52
2  xul.dll  rtc::webrtc_checks_impl::FatalLog  third_party/libwebrtc/rtc_base/checks.cc:170
3  xul.dll  rtc::webrtc_checks_impl::LogStreamer<>::CallCheckOp  third_party/libwebrtc/rtc_base/checks.h:257
3  xul.dll  rtc::webrtc_checks_impl::LogStreamer<rtc::webrtc_checks_impl::Val<6, unsigned long long> >::CallCheckOp const  third_party/libwebrtc/rtc_base/checks.h:306
3  xul.dll  rtc::webrtc_checks_impl::LogStreamer<rtc::webrtc_checks_impl::Val<1, int>, rtc::webrtc_checks_impl::Val<6, unsigned long long> >::CallCheckOp const  third_party/libwebrtc/rtc_base/checks.h:306
3  xul.dll  rtc::webrtc_checks_impl::FatalLogCall<1>::operator&  third_party/libwebrtc/rtc_base/checks.h:335
3  xul.dll  webrtc::RtpPacketizerH264::PacketizeStapA  third_party/libwebrtc/modules/rtp_rtcp/source/rtp_format_h264.cc:165
4  xul.dll  webrtc::RtpPacketizerH264::GeneratePackets  third_party/libwebrtc/modules/rtp_rtcp/source/rtp_format_h264.cc:103
5  xul.dll  webrtc::RtpPacketizerH264::RtpPacketizerH264  third_party/libwebrtc/modules/rtp_rtcp/source/rtp_format_h264.cc:62

Not a super common crash, but needs looking into. Line number (rtp_format_h264.cc:165) looks wrong, it looks like it is here instead, based on the stack indicating a comparison between a ulonglong and an int.

Crashes start in early December, but that is because of the improved visibility we got in bug 1800132.