Hi ,
My application meet below crash backtrace at very low repro rate from the public users, i do not see it relate to a specific iOS version or iPhone model. The last code line from my application is calling CAMetalLayer nextDrawable API.
I did some basic studying, suppose it may relate to the wrong CAMetaLayer configuration, like frame property w or h <= 0.0 bounds property w or h <= 0.0 drawableSize w or h <= 0.0 or w or h > max value (like 16384)
Not sure my above thinking is right or not? Will the UIView which my CAMetaLayer attached will cause such nextDrawable crash or not ?
Thanks a lot
Main Thread - Crashed
libsystem_kernel.dylib
__pthread_kill
libsystem_c.dylib
abort
libsystem_c.dylib
__assert_rtn
Metal
MTLReportFailure.cold.1
Metal
MTLReportFailure
Metal
_MTLMessageContextEnd
Metal
-[MTLTextureDescriptorInternal validateWithDevice:]
AGXMetalA13
0x245b1a000 + 4522096
QuartzCore
allocate_drawable_texture(id<MTLDevice>, __IOSurface*, unsigned int, unsigned int, MTLPixelFormat, unsigned long long, CAMetalLayerRotation, bool, NSString*, unsigned long)
QuartzCore
get_unused_drawable(_CAMetalLayerPrivate*, CAMetalLayerRotation, bool, bool)
QuartzCore
CAMetalLayerPrivateNextDrawableLocked(CAMetalLayer*, CAMetalDrawable**, unsigned long*)
QuartzCore
-[CAMetalLayer nextDrawable]
SpaceApp
-[MetalRender renderFrame:] MetalRenderer.mm:167
SpaceApp
-[FrameBuffer acceptFrame:] VideoRender.mm:173
QuartzCore
CA::Display::DisplayLinkItem::dispatch_(CA::SignPost::Interval<(CA::SignPost::CAEventCode)835322056>&)
QuartzCore
CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long)
QuartzCore
CA::Display::DisplayLink::dispatch_deferred_display_links(unsigned int)
UIKitCore
_UIUpdateSequenceRun
UIKitCore
schedulerStepScheduledMainSection
UIKitCore
runloopSourceCallback
CoreFoundation
__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
CoreFoundation
__CFRunLoopDoSource0
CoreFoundation
__CFRunLoopDoSources0
CoreFoundation
__CFRunLoopRun
CoreFoundation
CFRunLoopRunSpecific
GraphicsServices
GSEventRunModal
UIKitCore
-[UIApplication _run]
UIKitCore
UIApplicationMain
Hello,
Creating the drawable appears to be causing an internal crash while rendering your video frames.
It's difficult to say if it's the configuration of the drawable texture or something else like limited resources (memory).
Try reproducing the issue while profiling with Instruments to see if you can find any additional clues.
Otherwise, in order for us to investigate please send us a bug report using the Feedback Assistant. Include a full crash log and sysdiagnose taken when the issue occurs.
