我的应用程序突然中断，甚至没有显示托管堆栈跟踪。它在控制台中显示以下消息：
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xac5ac2c0) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
mono(6417,0xb0307000) malloc: *** mmap(size=16777216) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
Native stacktrace:
0 mono 0x000b6ea9 mono + 745129
1 mono 0x00006e23 mono + 24099
2 libsystem_c.dylib 0x9487c59b _sigtramp + 43
3 ??? 0xffffffff 0x0 + 4294967295
4 libclh.dylib 0x9776bbbb libclh.dylib + 191419
5 libclh.dylib 0x97773564 libclh.dylib + 222564
6 libclh.dylib 0x977b0456 clhFenceCreate + 38
7 GeForceGLDriver 0x8f0dca23 glrCompExecuteKernel + 5034
8 OpenCL 0x9a691ff1 processExec + 506
9 OpenCL 0x9a696ec6 processWork + 214
10 libdispatch.dylib 0x9282f80b _dispatch_queue_drain + 224
11 libdispatch.dylib 0x9282f6b0 _dispatch_queue_invoke + 47
12 libdispatch.dylib 0x9282eeb8 _dispatch_worker_thread2 + 187
13 libsystem_c.dylib 0x94826b24 _pthread_wqthread + 346
14 libsystem_c.dylib 0x948286fe start_wqthread + 30
Debug info from gdb:
/tmp/mono-gdb-commands.DNbmkH:1: Error in sourced command file:
unable to debug self
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
似乎问题出在OpenCL驱动程序中。我如何追踪并解决问题？
答案 0 :(得分：0)
它看起来更像是在OpenCL中发生的（注意'C'，这不是OpenGL，但与它有关系）。可能会发生的是，你的程序试图将一些GPU内存映射到它的地址空间，但这会失败，因为没有留下任何地址空间，这个地址空间足够大且具有正确的对齐方式。在低级代码中的某处，不检查mmap返回的指针，这会导致段错误。
这显然是Mono或OpenCL / OpenGL驱动程序或其绑定中的错误。将上述跟踪发送给任一开发人员，提交错误问题。
答案 1 :(得分：0)
互操作中存在内存泄漏问题，导致所有可用内存耗尽，超过2gb时崩溃...所以感谢大家，我的错...
答案 2 :(得分：0)
这是CALayer上下文中大量内存分配的问题，每次更改视图时都需要释放该层。它发生在我身上，这就是我解决它的方式，每次更改绘制特定上下文的页面时都需要释放内存。