1966932 - Crash in [@ linux-vdso.so.1] via SimulcastEncoderAdapter::Encode()

Status: RESOLVED DUPLICATE of bug 1965563

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

Description

[Andrew McCreight (out of office until 8/21) [:mccr8]]

Crash report: https://crash-stats.mozilla.org/report/index/470872ae-9eba-4f93-abc4-897450250515

Reason:

SIGSYS / SYS_SECCOMP

Top 10 frames:

0  linux-vdso.so.1  linux-vdso.so.1@0xca8
1  libc.so.6  __clock_gettime_2  sysdeps/unix/sysv/linux/clock_gettime.c:42
2  libgkcodecs.so  vpx_usec_timer_start  media/libvpx/libvpx/vpx_ports/vpx_timer.h:62
2  libgkcodecs.so  vp8_get_compressed_data  media/libvpx/libvpx/vp8/encoder/onyx_if.c:5023
3  libgkcodecs.so  vp8e_encode  media/libvpx/libvpx/vp8/vp8_cx_iface.c:1032
4  libgkcodecs.so  vpx_codec_encode  media/libvpx/libvpx/vpx/src/vpx_encoder.c:235
5  libxul.so  webrtc::LibvpxVp8Encoder::Encode(webrtc::VideoFrame const&, std::vector<webrt...  third_party/libwebrtc/modules/video_coding/codecs/vp8/libvpx_vp8_encoder.cc:1152
6  libxul.so  webrtc::SimulcastEncoderAdapter::Encode(webrtc::VideoFrame const&, std::vecto...  third_party/libwebrtc/media/engine/simulcast_encoder_adapter.cc:571
7  libxul.so  webrtc::VideoStreamEncoder::EncodeVideoFrame(webrtc::VideoFrame const&, long)  third_party/libwebrtc/video/video_stream_encoder.cc:2072
8  libxul.so  webrtc::VideoStreamEncoder::MaybeEncodeVideoFrame(webrtc::VideoFrame const&, ...  third_party/libwebrtc/video/video_stream_encoder.cc:1911

Almost all of the recent crashes with this signature have this sort of stack with SimulcastEncoderAdapter::Encode in it. I don't know if this is a regression or a signature change, but it is rather frequent for a Linux Nightly crash.

Comment 1

[Michael Froman [:mjf]]

I'm going to mark this an S2 for now. Andreas, is this a Simulcast regression?

Comment 2

[Andreas Pehrson [:pehrsons]]

I don't think it's simulcast. The SEA is always used. Chun-min, isn't this what you saw with the latest libvpx update?

Comment 4

[C.M.Chang[:chunmin]]

The patch landed in bug 1965563 should fix it