Application crash when Webrtc M72 start and try to log something

[Juan García]

I'm working on one webrtc-based application over Windows using MSVC2017 and I'm getting a crash when try to start WebRTC engine in debug mode. I'm using revision M72. This is my args.gn configuration:

target_cpu="x86"
is_debug=true
symbol_level=2
proprietary_codecs=true
rtc_use_h264=true
rtc_libvpx_build_vp9=false
rtc_include_tests=false
rtc_build_examples=false
libyuv_include_tests=false
gtest_enable_absl_printers=false

and this is a crash trace:

As you can see in the image, the application is crashing when trying to write a log, specifically, when trying to get filename in src/rtc_base/logging.cc:

// Return the filename portion of the string (that following the last slash).
const char* FilenameFromPath(const char* file) {
 const char* end1 = ::strrchr(file, '/');
 const char* end2 = ::strrchr(file, '\\');
 if (!end1 && !end2)
    return file;
 else
    return (end1 > end2) ? end1 + 1 : end2 + 1;
}

Also, I have seen debug logs like that:

(ë j:218705994): Audio Engine's current capturing mix format:

(‹å]ÃÌÌÌÌÌÌÌÌÌÌU‹ìjÿh Ûg d¡:17284040): nAvgBytesPerSec: 384000

where filename is ill-formed and seems like it is getting bad memory address where find filename char.

Any idea about it?

[Jozsef Vass]

We were getting crashes in log when webrtc was compiled with clang and the application with msvc.

Jozsef

--

---
You received this message because you are subscribed to the Google Groups "discuss-webrtc" group.
To unsubscribe from this group and stop receiving emails from it, send an email to discuss-webrt...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/485e671c-8b0a-4209-8732-3002bd039f84%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[jack jose]

• I met the same problem, how did you solve it? thank you.

在 2019年5月8日星期三 UTC+8下午12:09:49，Jozsef Vass写道：

To unsubscribe from this group and stop receiving emails from it, send an email to discuss...@googlegroups.com.

[jack jose]

• hi jozsef vass:

•   I met the same problem, how did you solve it? thank you.

在 2019年5月7日星期二 UTC+8下午6:47:22，Juan García写道：

[Jozsef Vass]

I am pretty sure we did, sorry, I do not remember, it was more than a year ago.

Jozsef

--

---
You received this message because you are subscribed to the Google Groups "discuss-webrtc" group.

To unsubscribe from this group and stop receiving emails from it, send an email to discuss-webrt...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/63bea98b-17fc-4ff2-84d6-cd034b24f0c0o%40googlegroups.com.

[Nick Hwang]

Did anyone figure this out?

[V I]

Use clang and try to match libwebrtc build settings as close as possible, including custom stdlib they use. There are patches and workarounds, but figuring them out is real pain, and then you decide to update libwebrtc and it’s all over again 

To view this discussion on the web visit https://groups.google.com/d/msgid/discuss-webrtc/91ac4ea7-a796-423a-b98a-097dbbfa0d4en%40googlegroups.com.