A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0xfffffff4 in tid 25352

[michael-destiny]

Hi developer,

I add below dependency in my gradle file.
implementation group: 'org.bytedeco', name: 'javacv', version: '1.5.3'
implementation 'org.bytedeco:opencv:4.3.0-1.5.3:android-arm'
and meet the crash as the title.

and I found this issue was reported in Opencv Issue:
opencv/opencv#14906

it was solved in
opencv/opencv@af21a3f

And merged in master branch in
opencv/opencv@ad0ab41

I want to know do the ''org.bytedeco:opencv:4.3.0-1.5.3:android-arm' contains this commit? This arm library crashed also in arm64-v8 devices.

[saudet]

It looks like that patch was reverted somewhere. It's not on master nor in 4.3.0:
https://github.com/opencv/opencv/blob/4.3.0/modules/core/src/logger.cpp#L184
https://github.com/opencv/opencv/blob/master/modules/core/src/logger.cpp#L184

[saudet]

If you would like to have it applied to the presets though, please open a PR with that patch here:
https://github.com/bytedeco/javacpp-presets/pulls

[michael-destiny]

According to opencv/opencv@f4f34ad
I found the fix code seems been moved to
https://github.com/opencv/opencv/blob/master/modules/core/src/system.cpp#L66

I'm not sure whether this issue still exist in official opencv library....

[saudet]

It's been released in OpenCV 4.3.0, yes:
https://github.com/opencv/opencv/blob/4.3.0/modules/core/src/system.cpp

[saudet]

BTW, this is probably a duplicate of issues #1133 or #1155.

[michael-destiny]

Yes, I would do more test on this.

[saudet]

It might be something that is fixed in more recent versions of the NDK. You might want to try it out locally, and if that fixes the issue, we'd need to update the version used on the CI servers, but it's never an easy task, because so many things change with each version...

[michael-destiny]

I tried with a cleanest code with bytedeco dependency

build.gradle
implementation group: 'org.bytedeco', name: 'javacv', version: '1.5.3'
implementation 'org.bytedeco:opencv:4.3.0-1.5.3:android-arm'
implementation 'org.bytedeco:ffmpeg:4.2.2-1.5.3:android-arm'
implementation 'org.bytedeco:openblas:0.3.9-1.5.3:android-arm'
implementation ('org.bytedeco:javacpp-presets:1.5.3')
And call the loader function to initialize opencv
Loader.load(opencv_java.class);

This issue seems doestn't happened again.
I would try this code on ABI=armeabi-v7a devices today.