Fatal signal 11 (SIGSEGV), code 1, fault addr 0x733ae00000 in tid 18693 (cedetectiondemo), pid 18693 (cedetectiondemo) about pcn-ncnn HOT 8 CLOSED

@HansRen1024 please help me with this error

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@wuyajun0627 Did you compile and run cam.cpp successfully on linux? I don't use JAVA, so C++ error logs would be helpful.

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This is a project with JNI. Here are the logs. Can you speak Chinese? Speaking English seems hard for me to describe how the error happens. @HansRen1024

01-16 16:54:33.495 14807 14807 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
01-16 16:54:33.496 14807 14807 F DEBUG : Build fingerprint: 'Hisense/HLTE510T/HSSDM636QC:8.1.0/OPM1.171019.026/L1511.6.01.02:user/release-keys'
01-16 16:54:33.496 14807 14807 F DEBUG : Revision: '0'
01-16 16:54:33.496 14807 14807 F DEBUG : ABI: 'arm64'
01-16 16:54:33.496 14807 14807 F DEBUG : pid: 10918, tid: 14789, name: ProcessingDualC >>> com.android.gallery3d <<<
01-16 16:54:33.496 14807 14807 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x70b8400000
01-16 16:54:33.496 14807 14807 F DEBUG : x0 0000000000000000 x1 00000070b83ffe80 x2 0000000000000048 x3 0000000000000040
01-16 16:54:33.496 14807 14807 F DEBUG : x4 00000070bd0e4f50 x5 00000070b83fff40 x6 00000070bd03ed60 x7 00000070bd03ee1e
01-16 16:54:33.496 14807 14807 F DEBUG : x8 0000000000000017 x9 0000000000000009 x10 0000000000000048 x11 0000000000000018
01-16 16:54:33.496 14807 14807 F DEBUG : x12 0000000000000018 x13 00000070bcc72010 x14 0000000000000000 x15 00000000000000c0
01-16 16:54:33.496 14807 14807 F DEBUG : x16 000000000000000a x17 0000000100000000 x18 000000000000008a x19 0000000000000018
01-16 16:54:33.496 14807 14807 F DEBUG : x20 0000000100000000 x21 00000000000000ba x22 00000070bd03ed00 x23 00000000000000ba
01-16 16:54:33.496 14807 14807 F DEBUG : x24 00000000000000b2 x25 00000070bcc720ac x26 00000070bd03ed60 x27 00000070bd03ee7c
01-16 16:54:33.496 14807 14807 F DEBUG : x28 00000070bd0e4fec x29 00000070a6e0ea50 x30 00000070b8d2b264
01-16 16:54:33.496 14807 14807 F DEBUG : sp 00000070a6e0e9c0 pc 00000070b8d2b3f0 pstate 0000000020000000
01-16 16:54:33.507 14807 14807 F DEBUG :
01-16 16:54:33.507 14807 14807 F DEBUG : backtrace:
01-16 16:54:33.508 14807 14807 F DEBUG : #00 pc 000000000009f3f0 /system/priv-app/Vision_Gallery/lib/arm64/libface_angle_detection.so (ncnn::resize_bilinear_c3(unsigned char const*, int, int, unsigned char*, int, int)+1112)
01-16 16:54:33.508 14807 14807 F DEBUG : #1 pc 00000000000a1760 /system/priv-app/Vision_Gallery/lib/arm64/libface_angle_detection.so (ncnn::Mat::from_pixels_resize(unsigned char const*, int, int, int, int, int)+184)
01-16 16:54:33.508 14807 14807 F DEBUG : #2 pc 000000000009592c /system/priv-app/Vision_Gallery/lib/arm64/libface_angle_detection.so (Impl::Stage2(cv::Mat, cv::Mat, ncnn::Net&, float, int, std::vector<Window2, std::allocator, >&)+1312)
01-16 16:54:33.508 14807 14807 F DEBUG : #3 pc 000000000009269c /system/priv-app/Vision_Gallery/lib/arm64/libface_angle_detection.so (PCN::DetectFace(cv::Mat)+1584)
01-16 16:54:33.508 14807 14807 F DEBUG : #4 pc 0000000000099e34 /system/priv-app/Vision_Gallery/lib/arm64/libface_angle_detection.so (Java_com_example_facedetectionlibrary_FaceAngleDetectionUtils_faceAngleDetect+856)
01-16 16:54:33.508 14807 14807 F DEBUG : #5 pc 0000000000026614 /system/priv-app/Vision_Gallery/oat/arm64/Vision_Gallery.odex (offset 0x20000)

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@wuyajun0627 说中文嘛～我之前的意思是想问问你跑通cam.cpp了没？

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算是跑通了吧，在Linux上跑的，不过还是以JNI的形式。原来为了提高速度，我在传入图片的时候，对图片做了一个缩减，不知道是不是尺寸太小了，才会出现这种错误。后来我把图片的尺寸调的稍微大了些，目前还没有出现之前的问题 @HansRen1024

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@wuyajun0627 我一般就是用640480,320240这样子大小的图片。我记得有设置最小人脸的参数，适当放大也可以提速。

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这么小的尺寸都可以吗，我原来就是resize到640 * 480，结果报错了，后来我把传入的尺寸改大了一些，目前没出现问题。不过根据你说的情况，感觉问题并没有解决@ @HansRen1024

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@wuyajun0627 建议先用C++跑，没问题了再转JNI接口跑。如果还有问题，就定位看看JNI代码。

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