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We also saw the same crash in a commercial project on various devices with similar chipsets and Android versions in the wild.
Issue description
The attached project crashes on some MTK chipset phones with fresh (updated Android 13 and 14) MTK OpenGL driver in the MeshStorage::_compute_skeleton() function on the
02-04 15:17:16.836 8657 8657 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
02-04 15:17:16.836 8657 8657 F DEBUG : Build fingerprint: 'motorola/cancunf_g_sysen/cancunf:13/T3TDS33.16-78-2-2/8b2d0-ffc032:user/release-keys'
02-04 15:17:16.836 8657 8657 F DEBUG : Revision: 'PVT'
02-04 15:17:16.836 8657 8657 F DEBUG : ABI: 'arm64'
02-04 15:17:16.836 8657 8657 F DEBUG : Timestamp: 2025-02-04 15:17:16.665975841+0100
02-04 15:17:16.836 8657 8657 F DEBUG : Process uptime: 2s
02-04 15:17:16.836 8657 8657 F DEBUG : Cmdline: com.example.mtkcrashtest
02-04 15:17:16.836 8657 8657 F DEBUG : pid: 8584, tid: 8635, name: GLThread 36 >>> com.example.mtkcrashtest <<<
02-04 15:17:16.836 8657 8657 F DEBUG : uid: 10351
02-04 15:17:16.836 8657 8657 F DEBUG : tagged_addr_ctrl: 0000000000000001 (PR_TAGGED_ADDR_ENABLE)
02-04 15:17:16.837 8657 8657 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0000000000000010
02-04 15:17:16.837 8657 8657 F DEBUG : Cause: null pointer dereference
02-04 15:17:16.837 8657 8657 F DEBUG : x0 0000000000000000 x1 0000006fbe581750 x2 0000006fbe581718 x3 0000006fbe581718
02-04 15:17:16.837 8657 8657 F DEBUG : x4 0000006fbe581508 x5 0000006fbe581150 x6 0000006fbe581470 x7 0000006fbe5814a8
02-04 15:17:16.837 8657 8657 F DEBUG : x8 0000006fbe581720 x9 0000006fbe581770 x10 0000000000000009 x11 0000000000004d0e
02-04 15:17:16.837 8657 8657 F DEBUG : x12 00000070ddec2f80 x13 000000704f6782c0 x14 fffffffffc000000 x15 00000000fd000000
02-04 15:17:16.837 8657 8657 F DEBUG : x16 00000070205b54f8 x17 00000070ddf247a0 x18 0000006fbd5d4000 x19 b400006faadf2918
02-04 15:17:16.837 8657 8657 F DEBUG : x20 0000006fbe581800 x21 b400006faaf366e0 x22 b400006faaf366c8 x23 b400006fad2f2c00
02-04 15:17:16.837 8657 8657 F DEBUG : x24 0000006fbe5815f0 x25 0000006fbe5815f0 x26 b400006faadf2928 x27 0000006fbe581720
02-04 15:17:16.837 8657 8657 F DEBUG : x28 b400006fad2f2c00 x29 0000006fbe5811b0
02-04 15:17:16.837 8657 8657 F DEBUG : lr 0000007020537418 sp 0000006fbe5811b0 pc 0000007020559b14 pst 0000000060001000
02-04 15:17:16.837 8657 8657 F DEBUG : backtrace:
02-04 15:17:16.837 8657 8657 F DEBUG : #00 pc 0000000000d2cb14 /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #01 pc 0000000000d0a414 /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #02 pc 000000000096042c /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #03 pc 0000000000a77764 /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #04 pc 000000000095f1ec /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #05 pc 0000000000cf6e54 /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #06 pc 0000000000a70674 /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #07 pc 0000000000a807dc /vendor/lib64/mt6855/libufwriter.so (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #08 pc 0000000000a32b94 /vendor/lib64/mt6855/libufwriter.so (GLSLCompileToUniflex+15972) (BuildId: c8d287ca5fa8793f358d6552b6ae7df7)
02-04 15:17:16.837 8657 8657 F DEBUG : #09 pc 000000000014ac40 /vendor/lib64/egl/mt6855/libGLESv2_mtk.so (BuildId: ae51f27f2ec37430bc2ab1ef9178e703)
02-04 15:17:16.837 8657 8657 F DEBUG : #10 pc 000000000014b878 /vendor/lib64/egl/mt6855/libGLESv2_mtk.so (BuildId: ae51f27f2ec37430bc2ab1ef9178e703)
02-04 15:17:16.837 8657 8657 F DEBUG : #11 pc 00000000000b22d0 /vendor/lib64/egl/mt6855/libGLESv2_mtk.so (glCompileShader+116) (BuildId: ae51f27f2ec37430bc2ab1ef9178e703)
02-04 15:17:16.837 8657 8657 F DEBUG : #12 pc 0000000001f0b734 /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #13 pc 0000000001f0ecfc /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #14 pc 0000000001ed491c /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #15 pc 00000000037c0808 /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #16 pc 00000000037bb8dc /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #17 pc 000000000378630c /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #18 pc 000000000378680c /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #19 pc 0000000003788c3c /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #20 pc 0000000003736350 /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #21 pc 00000000037385d4 /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #22 pc 0000000001018d80 /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #23 pc 0000000000fbc45c /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so
02-04 15:17:16.837 8657 8657 F DEBUG : #24 pc 0000000000fd1788 /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk!libgodot_android.so (Java_org_godotengine_godot_GodotLib_step+316)
02-04 15:17:16.837 8657 8657 F DEBUG : #25 pc 0000000000461754 /apex/com.android.art/lib64/libart.so (art_quick_generic_jni_trampoline+148) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #26 pc 0000000000209398 /apex/com.android.art/lib64/libart.so (nterp_helper+152) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #27 pc 0000000000255398 [anon:dalvik-classes.dex extracted in memory from /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk] (org.godotengine.godot.gl.GodotRenderer.onDrawFrame+20)
02-04 15:17:16.837 8657 8657 F DEBUG : #28 pc 000000000020b074 /apex/com.android.art/lib64/libart.so (nterp_helper+7540) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #29 pc 00000000002545fe [anon:dalvik-classes.dex extracted in memory from /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk] (org.godotengine.godot.gl.GLSurfaceView$GLThread.guardedRun+1034)
02-04 15:17:16.837 8657 8657 F DEBUG : #30 pc 000000000020a254 /apex/com.android.art/lib64/libart.so (nterp_helper+3924) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #31 pc 0000000000254b3c [anon:dalvik-classes.dex extracted in memory from /data/app/~~6rrItiD5kfRenOL5fy1NcQ==/com.example.mtkcrashtest-qodHYQ2hzLfllG4H7tgTng==/base.apk] (org.godotengine.godot.gl.GLSurfaceView$GLThread.run+52)
02-04 15:17:16.837 8657 8657 F DEBUG : #32 pc 0000000000457d6c /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+556) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #33 pc 0000000000483be4 /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+156) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #34 pc 00000000004838b0 /apex/com.android.art/lib64/libart.so (art::JValue art::InvokeVirtualOrInterfaceWithJValues<art::ArtMethod*>(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, art::ArtMethod*, jvalue const*)+400) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #35 pc 00000000005cc300 /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+1680) (BuildId: 6fc1c03912861b04885c9f2953121b6b)
02-04 15:17:16.837 8657 8657 F DEBUG : #36 pc 00000000000fbcbc /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+204) (BuildId: 9d480b70c1b085134b71b9c0857e1514)
02-04 15:17:16.837 8657 8657 F DEBUG : #37 pc 000000000008e4b0 /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: 9d480b70c1b085134b71b9c0857e1514)
The issue only comes up with certain Android OS / GL driver versions. My Moto G54 test device did not reproduce the crash with the stock drivers, but started reproducing it when the (automatic) update to the latest security update version finished and the phone was rebooted.
Steps to reproduce
Run the project (or any project with a Skeleton3D) using the GLES3 backend.
Tested versions
Reproduced in 4.3 stable, 4.3.1rc, 4.4 beta 2.
System information
Moto G54 5G Android 13 Godot 4.3, 4.3.1rc, 4.4beta2, GLES3 backend. MTK 7050 chipset, Android build id: T3TDS33.16-78-2-2
We also saw the same crash in a commercial project on various devices with similar chipsets and Android versions in the wild.
Issue description
The attached project crashes on some MTK chipset phones with fresh (updated Android 13 and 14) MTK OpenGL driver in the MeshStorage::_compute_skeleton() function on the
call. (Debugged in the 4.3.1rc version). Vulkan (Mobile) backend works.
mtk-crash-test.zip
Crash dump (4.4 beta 2, not symbolicated):
The issue only comes up with certain Android OS / GL driver versions. My Moto G54 test device did not reproduce the crash with the stock drivers, but started reproducing it when the (automatic) update to the latest security update version finished and the phone was rebooted.
Steps to reproduce
Run the project (or any project with a Skeleton3D) using the GLES3 backend.
Minimal reproduction project (MRP)
mtk-crash-test.zip
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