App crashes when vkCreateDevice fails

[Upliner]

error log | 日志或报错信息 | ログ

[0 Intel(R) Iris(R) Xe Graphics] queueC=0[1] queueG=0[1] queueT=0[1]
[0 Intel(R) Iris(R) Xe Graphics] bugsbn1=0 bugbilz=0 bugcopc=0 bugihfa=0
[0 Intel(R) Iris(R) Xe Graphics] fp16-p/s/a=1/1/1 int8-p/s/a=1/1/1
[0 Intel(R) Iris(R) Xe Graphics] subgroup=32 basic/vote/ballot/shuffle=1/1/1/1
[0 Intel(R) Iris(R) Xe Graphics] fp16-matrix-16_8_8/16_8_16/16_16_16=0/0/0
vkCreateDevice failed -4
Segmentation fault

context | 编译/运行环境 | バックグラウンド

My app crashes on some systems where there is some problems with Vulkan. It should fallback to CPU instead in such cases.

how to reproduce | 复现步骤 | 再現方法

1. Run system where vkCreateDevice fails or replace vkCreateDevice call with VkResult ret = VK_ERROR_DEVICE_LOST;
2. Run the simplest application:

#include <ncnn/net.h>
int main() {
    ncnn::get_gpu_device(0);
    ncnn::destroy_gpu_instance();
    return 0;
}

more | 其他 | その他