MTLCreateSystemDefaultDevice crash?

Device: iPod 7 iOS version: 14.4.1 ,

GMetalDevice = MTLCreateSystemDefaultDevice();


(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
  frame #0: 0x00000001d7a3784c libsystem_kernel.dylib`__pthread_kill + 8
 * frame #1: 0x00000001f39c29e8 libsystem_pthread.dylib`pthread_kill + 212
  frame #2: 0x00000001b4b738f4 libsystem_c.dylib`abort + 100
  frame #3: 0x00000001bb238030 libsystem_malloc.dylib`malloc_vreport + 556
  frame #4: 0x00000001bb2381e8 libsystem_malloc.dylib`malloc_report + 60
  frame #5: 0x00000001bb22e2e8 libsystem_malloc.dylib`free + 432
  frame #6: 0x00000001f48dab10 AGXMetalA10`___lldb_unnamed_symbol1249 + 1644
  frame #7: 0x00000001f49064d4 AGXMetalA10`___lldb_unnamed_symbol1504 + 72
  frame #8: 0x00000001c18ca694 Metal`+[MTLIOAccelDevice registerDevices] + 224
  frame #9: 0x00000001c18ccbf8 Metal`invocation function for block in MTLDeviceArrayInitialize() + 872
  frame #10: 0x0000000119505528 libdispatch.dylib`_dispatch_client_callout + 16
  frame #11: 0x0000000119506e6c libdispatch.dylib`_dispatch_once_callout + 84
  frame #12: 0x00000001c18cc470 Metal`MTLCreateSystemDefaultDevice + 200
  frame #13: 0x00000001054f5f54 MyProject`+[FIOSView layerClass](self=<unavailable>, _cmd=<unavailable>) at IOSView.cpp:134:18 [opt]
  frame #14: 0x00000001aebbd034 UIKitCore`UIViewCommonInitWithFrame + 1040
  frame #15: 0x00000001aebbcbcc UIKitCore`-[UIView initWithFrame:] + 124
  frame #16: 0x00000001054f6274 MyProject`-[FIOSView initWithFrame:](self=<unavailable>, _cmd=<unavailable>, Frame=<unavailable>) at IOSView.cpp:233:14 [opt]
  frame #17: 0x0000000102d237f8 MyProject`invocation function for block in FAppEntry::PlatformInit() [inlined] MainThreadInit() at LaunchIOS.cpp:348:24 [opt]
  frame #18: 0x0000000102d237a8 MyProject`invocation function for block in FAppEntry::PlatformInit(.block_descriptor=<unavailable>) at LaunchIOS.cpp:373:47 [opt]
  frame #19: 0x0000000119503ce4 libdispatch.dylib`_dispatch_call_block_and_release + 24
  frame #20: 0x0000000119505528 libdispatch.dylib`_dispatch_client_callout + 16
  frame #21: 0x0000000119513994 libdispatch.dylib`_dispatch_main_queue_callback_4CF + 972
  frame #22: 0x00000001abdf85e0 CoreFoundation`__CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
  frame #23: 0x00000001abdf2a88 CoreFoundation`__CFRunLoopRun + 2480
  frame #24: 0x00000001abdf1ba0 CoreFoundation`CFRunLoopRunSpecific + 572
  frame #25: 0x00000001c2b5a598 GraphicsServices`GSEventRunModal + 160
  frame #26: 0x00000001ae6e32f4 UIKitCore`-[UIApplication _run] + 1052
  frame #27: 0x00000001ae6e8874 UIKitCore`UIApplicationMain + 164
  frame #28: 0x0000000102d312bc MyProject`main(argc=3, argv=0x000000016d4e7700) at LaunchIOS.cpp:584:13 [opt]
  frame #29: 0x00000001abad0568 libdyld.dylib`start + 4
Up vote post of rbbtsn0w Down vote post of rbbtsn0w
2.1k views
Posted by
rbbtsn0w
Reply
Add a Comment

Replies

In macOS Ventura they removed the ability to call MTLCreateSystemDefaultDevice() from command-line apps. You have to use MTLCopyAllDevices().first! instead. However this problem shouldn't exist on iOS and older than v16.0.0.

Posted by
philipturner
Post not yet marked as solved Up vote reply of philipturner Down vote reply of philipturner

  • This is what the error message says on macOS, but the documentation gives another solution: just import CoreGraphics, then MTLCreateSystemDefaultDevice() works again.

    —
    Ceylo

  • I was use on iOS 14.4.

    —
    rbbtsn0w

  • #import <CoreGraphics/CoreGraphics.h> helps me fix assertion on iOS 12.5.4 , iPhone 6

    —
    XinchunDou
Add a Comment

did you solve this problem, I met this crash too. waiting for solution

Posted by
sebarina
Up vote reply of sebarina Down vote reply of sebarina
Add a Comment