a80d3d31a3
Some Vulkan drivers (observed on Adreno, Qualcomm build 923a446bf8,
driver date 09/05/24) report bufferDeviceAddress support in
VkPhysicalDeviceVulkan12Features but crash with SIGSEGV when
vkGetBufferDeviceAddress is actually called:
Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
#01 ggml_vk_create_buffer+4084
#02 ggml_vk_create_buffer_device+148
#03 ggml_backend_vk_buffer_type_alloc_buffer+240
#07 whisper_model_load+5996
The crash occurs inside ggml_vk_create_buffer when
device->device.getBufferAddress() is called — the driver-internal
function pointer dereferences null.
After creating the logical device, verify that the function pointer
resolves via vkGetDeviceProcAddr and that a test call returns a
non-zero address. If either check fails, disable
buffer_device_address so all guarded code paths skip BDA.
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