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Crash drawing polygon using DrawPath with SKGLView on iOS #571

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pauldendulk opened this issue Jun 30, 2018 · 4 comments
Closed

Crash drawing polygon using DrawPath with SKGLView on iOS #571

pauldendulk opened this issue Jun 30, 2018 · 4 comments
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@pauldendulk
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pauldendulk commented Jun 30, 2018

Description

The entire app crashes when drawing a polygon with 450 points.

Message in Debug console:

The app has been terminated.
Failed to Stop app: An error occured on client IDB410102 while executing a reply for topic xvs/idb/4.10.10.2/stop-app
The app has been terminated.

  • The crash occurs now and then. In the sample project (in the git repository pointed to below) you can pinch zoom in and out. If you try that for a while the app crashes. Usually this is within 10 seconds.
  • The polygon has no holes.
  • I could not reproduce is the DrawPath Style argument is set to Fill, Stroke or StrokeAndFill seem to be necessary.
  • The app zooms in by recalculating the coordinates. Not sure if it crashes with Scale zoom.
  • This is polygon entered by a user. Most polygons don't crash.

Code

https://raw.githubusercontent.com/pauldendulk/PolygonCrash/master/CrashWhenDrawingPolygon/MyView.cs

Expected Behavior

No crash

Actual Behavior

After fast pinch zooming in and out the iOS application crashes.

Basic Information

  • Version with issue: 1.60.2
  • Last known good version: None, that I know
  • IDE: Visual Studio
  • Platform Target Frameworks: iOS when using SKGLView. On Android, WPF and UWP I do use GL views yet.
  • Target Devices:
    • Tested on iPad Air 2 hardware.

Screenshots

image

Reproduction Link

https://github.com/pauldendulk/PolygonCrash
Reproduce: Place two fingers on the screen and pinch zoom in and out repeatedly. For me it crashes within 10 seconds most of the time.

@pauldendulk pauldendulk changed the title Crash drawing polygon on DrawPath with SKGLView on iOS Crash drawing polygon using DrawPath with SKGLView on iOS Jun 30, 2018
@charlenni
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Tested it with a SKCanvasView instead of SKGLView. There it isn't crashing. So I assume, that it is a problem with the GL part.

The crash report:

{"app_name":"CrashWhenDrawingPolygon","timestamp":"2018-06-30 12:53:27.11 +0200","app_version":"1.0","slice_uuid":"a1a3e5ec-bd5a-32a7-8685-e43e6db907c5","adam_id":0,"build_version":"1.0","bundleID":"com.mapsui.sampleapp3","share_with_app_devs":false,"is_first_party":false,"bug_type":"109","os_version":"iPhone OS 11.4 (15F79)","incident_id":"D1DF398D-D752-427B-88C8-ABA7454D49BF","name":"CrashWhenDrawingPolygon"}
Incident Identifier: D1DF398D-D752-427B-88C8-ABA7454D49BF
CrashReporter Key:   182112931a005bedaf3c34f5c6d603c282abc549
Hardware Model:      iPhone8,4
Process:             CrashWhenDrawingPolygon [500]
Path:                /private/var/containers/Bundle/Application/3BF3D41F-AC82-4F4A-B950-CD200A28FEB4/CrashWhenDrawingPolygon.app/CrashWhenDrawingPolygon
Identifier:          com.mapsui.sampleapp3
Version:             1.0 (1.0)
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.mapsui.sampleapp3 [587]


Date/Time:           2018-06-30 12:53:27.0567 +0200
Launch Time:         2018-06-30 12:53:21.0292 +0200
OS Version:          iPhone OS 11.4 (15F79)
Baseband Version:    6.60.00
Report Version:      104

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_PROTECTION_FAILURE at 0x000000016f8dbff0
VM Region Info: 0x16f8dbff0 is in 0x16f8d8000-0x16f8dc000;  bytes after start: 16368  bytes before end: 15
      REGION TYPE                      START - END             [ VSIZE] PRT/MAX SHRMOD  REGION DETAIL
      MALLOC_SMALL           000000011e800000-000000011f000000 [ 8192K] rw-/rwx SM=PRV  
      GAP OF 0x508d8000 BYTES
--->  STACK GUARD            000000016f8d8000-000000016f8dc000 [   16K] ---/rwx SM=NUL  ... for thread 0
      Stack                  000000016f8dc000-000000016f9d8000 [ 1008K] rw-/rwx SM=PRV  thread 0

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]
Triggered by Thread:  0

Filtered syslog:
None found

Thread 0 name:  tid_303  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libSkiaSharp                  	0x0000000100c25530 0x100a3c000 + 2004272
1   libSkiaSharp                  	0x0000000100c25fa4 0x100a3c000 + 2006948
2   libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
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242 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
243 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
244 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
245 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
246 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
247 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
248 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
249 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
250 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
251 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
252 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
253 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
254 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
255 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
256 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
257 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
258 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
259 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
260 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
261 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
262 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
263 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
264 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
265 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
266 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
267 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
268 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
269 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
270 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
271 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
272 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
273 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
274 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
275 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
276 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
277 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
278 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
279 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
280 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
281 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
282 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
283 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
284 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
285 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
286 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
287 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
288 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
289 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
290 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
291 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
292 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
293 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
294 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
295 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
296 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
297 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
298 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
299 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
300 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
301 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
302 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
303 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
304 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
305 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
306 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
307 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
308 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
309 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
310 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
311 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
312 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
313 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
314 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
315 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
316 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
317 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
318 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
319 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
320 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
321 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
322 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
323 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
324 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
325 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
326 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
327 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
328 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
329 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
330 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
331 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
332 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
333 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
334 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
335 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
336 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
337 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
338 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
339 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
340 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
341 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
342 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
343 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
344 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
345 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
346 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
347 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
348 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
349 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
350 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
351 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
352 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
353 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
354 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
355 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
356 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
357 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
358 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
359 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
360 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
361 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
362 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
363 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
364 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
365 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
366 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
367 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
368 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
369 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
370 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
371 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
372 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
373 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
374 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
375 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
376 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
377 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
378 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
379 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
380 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
381 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
382 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
383 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
384 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
385 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
386 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
387 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
388 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
389 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
390 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
391 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
392 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
393 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
394 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
395 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
396 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
397 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
398 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
399 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
400 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
401 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
402 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
403 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
404 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
405 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
406 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
407 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
408 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
409 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
410 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
411 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
412 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
413 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
414 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
415 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
416 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
417 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
418 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
419 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
420 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
421 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
422 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
423 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
424 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
425 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
426 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
427 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
428 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
429 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
430 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
431 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
432 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
433 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
434 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
435 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
436 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
437 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
438 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
439 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
440 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
441 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
442 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
443 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
444 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
445 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
446 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
447 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
448 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
449 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
450 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
451 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
452 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
453 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
454 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
455 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
456 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
457 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
458 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
459 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
460 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
461 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
462 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
463 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
464 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
465 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
466 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
467 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
468 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
469 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
470 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
471 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
472 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
473 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
474 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
475 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
476 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
477 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
478 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
479 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
480 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
481 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
482 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
483 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
484 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
485 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
486 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
487 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
488 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
489 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
490 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
491 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
492 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
493 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
494 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
495 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
496 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
497 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
498 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
499 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
500 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
501 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
502 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
503 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
504 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
505 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
506 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
507 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
508 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
509 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880
510 libSkiaSharp                  	0x0000000100c25790 0x100a3c000 + 2004880

Thread 1:
0   libsystem_kernel.dylib        	0x0000000183679d84 0x183657000 + 142724
1   libsystem_pthread.dylib       	0x0000000183817eb4 0x183817000 + 3764
2   libsystem_pthread.dylib       	0x0000000183817b08 0x183817000 + 2824

Thread 2 name:  SGen worker
Thread 2:
0   libsystem_kernel.dylib        	0x00000001836790f4 0x183657000 + 139508
1   libsystem_pthread.dylib       	0x000000018381bc90 0x183817000 + 19600
2   CrashWhenDrawingPolygon       	0x0000000100715c5c 0x100428000 + 3071068
3   libsystem_pthread.dylib       	0x0000000183819220 0x183817000 + 8736
4   libsystem_pthread.dylib       	0x0000000183819110 0x183817000 + 8464
5   libsystem_pthread.dylib       	0x0000000183817b10 0x183817000 + 2832

Thread 3 name:  Finalizer
Thread 3:
0   libsystem_kernel.dylib        	0x0000000183657e44 0x183657000 + 3652
1   CrashWhenDrawingPolygon       	0x0000000100674de0 0x100428000 + 2412000
2   CrashWhenDrawingPolygon       	0x00000001006cf338 0x100428000 + 2782008
3   libsystem_pthread.dylib       	0x0000000183819220 0x183817000 + 8736
4   libsystem_pthread.dylib       	0x0000000183819110 0x183817000 + 8464
5   libsystem_pthread.dylib       	0x0000000183817b10 0x183817000 + 2832

Thread 4:
0   libsystem_pthread.dylib       	0x0000000183817b04 0x183817000 + 2820

Thread 5:
0   libsystem_pthread.dylib       	0x0000000183817b04 0x183817000 + 2820

Thread 6 name:  com.apple.uikit.eventfetch-thread
Thread 6:
0   libsystem_kernel.dylib        	0x0000000183657e08 0x183657000 + 3592
1   libsystem_kernel.dylib        	0x0000000183657c80 0x183657000 + 3200
2   CoreFoundation                	0x0000000183b9ae40 0x183aad000 + 974400
3   CoreFoundation                	0x0000000183b98908 0x183aad000 + 964872
4   CoreFoundation                	0x0000000183ab8da8 0x183aad000 + 48552
5   Foundation                    	0x000000018452d674 0x184525000 + 34420
6   Foundation                    	0x000000018452d51c 0x184525000 + 34076
7   UIKit                         	0x000000018d7ba768 0x18d7b8000 + 10088
8   Foundation                    	0x000000018463defc 0x184525000 + 1150716
9   libsystem_pthread.dylib       	0x0000000183819220 0x183817000 + 8736
10  libsystem_pthread.dylib       	0x0000000183819110 0x183817000 + 8464
11  libsystem_pthread.dylib       	0x0000000183817b10 0x183817000 + 2832

Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0x00000001068f1e38   x1: 0x00000001068f1df0   x2: 0x000000016f9d3a40   x3: 0x000000016f9d3a40
    x4: 0x00000001068f5f40   x5: 0x0000000000000003   x6: 0x0000000000000000   x7: 0x0000000000000000
    x8: 0x00000001068f4d20   x9: 0x00000001068f5e08  x10: 0x00000001068f5ea8  x11: 0x00000001068f5ee8
   x12: 0x00000001068f1e20  x13: 0x00000001068f5e50  x14: 0x0000000000000008  x15: 0x00000001064b6bb0
   x16: 0x000000018380ed00  x17: 0x0000000088023a03  x18: 0x0000000000000000  x19: 0x000000016f9d3a40
   x20: 0x000000016f9d3970  x21: 0x00000001068f1e38  x22: 0x00000001068f5ea8  x23: 0x00000001068f5e08
   x24: 0x00000001068f1df0  x25: 0x000000016f9d3970  x26: 0x000000016f9d3978  x27: 0x0000000000000001
   x28: 0x000000016f9d3c38   fp: 0x000000016f8dc050   lr: 0x0000000100c25fa4
    sp: 0x000000016f8dc030   pc: 0x0000000100c25530 cpsr: 0x20000000

Binary Images:
0x100428000 - 0x1007b3fff CrashWhenDrawingPolygon arm64  <a1a3e5ecbd5a32a78685e43e6db907c5> /var/containers/Bundle/Application/3BF3D41F-AC82-4F4A-B950-CD200A28FEB4/CrashWhenDrawingPolygon.app/CrashWhenDrawingPolygon
0x1009a8000 - 0x1009e3fff dyld arm64  <b15e536a710732dabfafece44c5685e4> /usr/lib/dyld
0x100a3c000 - 0x100e3bfff libSkiaSharp arm64  <f2a1e2057a273b549577cad6839478a2> /var/containers/Bundle/Application/3BF3D41F-AC82-4F4A-B950-CD200A28FEB4/CrashWhenDrawingPolygon.app/Frameworks/libSkiaSharp.framework/libSkiaSharp
0x182d27000 - 0x182d28fff libSystem.B.dylib arm64  <f3beb9029e533a899d794429fec383f9> /usr/lib/libSystem.B.dylib
0x182d29000 - 0x182d81fff libc++.1.dylib arm64  <e6172d25b5d63239879410136730d916> /usr/lib/libc++.1.dylib
0x182d82000 - 0x182da3fff libc++abi.dylib arm64  <40c62b02df253630845890510fe3f773> /usr/lib/libc++abi.dylib
0x182da4000 - 0x18345ffff libobjc.A.dylib arm64  <eb1135b2bde93b69b96e42ca98200183> /usr/lib/libobjc.A.dylib
0x183460000 - 0x183465fff libcache.dylib arm64  <54b1949bb1b4347fbe2bb062d122979d> /usr/lib/system/libcache.dylib
0x183466000 - 0x183471fff libcommonCrypto.dylib arm64  <9f2ad88474f63161a7ed0d77ffb09f08> /usr/lib/system/libcommonCrypto.dylib
0x183472000 - 0x183475fff libcompiler_rt.dylib arm64  <807266fbf2b4371b9d90434ff9baf8cc> /usr/lib/system/libcompiler_rt.dylib
0x183476000 - 0x18347efff libcopyfile.dylib arm64  <fb21dd91d31537adb3cf894ec9b1391c> /usr/lib/system/libcopyfile.dylib
0x18347f000 - 0x1834e2fff libcorecrypto.dylib arm64  <bc24742f578638528e9337db3676df38> /usr/lib/system/libcorecrypto.dylib
0x1834e3000 - 0x183548fff libdispatch.dylib arm64  <c22cd026d190379da5d8bc98e09cc0eb> /usr/lib/system/libdispatch.dylib
0x183549000 - 0x183563fff libdyld.dylib arm64  <c7dee18ac0193fa2b3904606c2cf7fa3> /usr/lib/system/libdyld.dylib
0x183564000 - 0x183564fff liblaunch.dylib arm64  <89ad25dd597b3132b3a9cc76095c51e2> /usr/lib/system/liblaunch.dylib
0x183565000 - 0x18356afff libmacho.dylib arm64  <529a7a630916378f83c37a1abeed1e18> /usr/lib/system/libmacho.dylib
0x18356b000 - 0x18356cfff libremovefile.dylib arm64  <f39badfaba853359860a083176d107d8> /usr/lib/system/libremovefile.dylib
0x18356d000 - 0x183583fff libsystem_asl.dylib arm64  <6b0ec177d8193151be829c9a5a2bf138> /usr/lib/system/libsystem_asl.dylib
0x183584000 - 0x183584fff libsystem_blocks.dylib arm64  <a7c74cd6406f37d7a6beeb8faa6e1706> /usr/lib/system/libsystem_blocks.dylib
0x183585000 - 0x183602fff libsystem_c.dylib arm64  <4fdfb9bed517340693481047718c8b0b> /usr/lib/system/libsystem_c.dylib
0x183603000 - 0x183607fff libsystem_configuration.dylib arm64  <1407473c6d62377287a69e3e9bf5662d> /usr/lib/system/libsystem_configuration.dylib
0x183608000 - 0x18360dfff libsystem_containermanager.dylib arm64  <15bb97f56e313e15ac58dfc2f47a9552> /usr/lib/system/libsystem_containermanager.dylib
0x18360e000 - 0x18360ffff libsystem_coreservices.dylib arm64  <99efc93693b33c4b840802723732ecc2> /usr/lib/system/libsystem_coreservices.dylib
0x183610000 - 0x183611fff libsystem_darwin.dylib arm64  <c37f68e79cf93ad1b61607b8de9b4ea3> /usr/lib/system/libsystem_darwin.dylib
0x183612000 - 0x183618fff libsystem_dnssd.dylib arm64  <a51f1ae67de837379829030c98186c71> /usr/lib/system/libsystem_dnssd.dylib
0x183619000 - 0x183656fff libsystem_info.dylib arm64  <4d7444646e4c34bc97d5585e1c15b953> /usr/lib/system/libsystem_info.dylib
0x183657000 - 0x18367ffff libsystem_kernel.dylib arm64  <3e7cf8f8da43301fba644f28fd8820a4> /usr/lib/system/libsystem_kernel.dylib
0x183680000 - 0x1836adfff libsystem_m.dylib arm64  <01ffce6a6be935ed90d0051b6c32a492> /usr/lib/system/libsystem_m.dylib
0x1836ae000 - 0x1836c9fff libsystem_malloc.dylib arm64  <477d0a108da13abdbfac319b2398994f> /usr/lib/system/libsystem_malloc.dylib
0x1836ca000 - 0x1837f5fff libsystem_network.dylib arm64  <7cb3941fd98d34e09ebd92ac86b4869d> /usr/lib/system/libsystem_network.dylib
0x1837f6000 - 0x183801fff libsystem_networkextension.dylib arm64  <8df72f6c42203b0282209a49474147f8> /usr/lib/system/libsystem_networkextension.dylib
0x183802000 - 0x18380cfff libsystem_notify.dylib arm64  <fc4aac7c3329338e827b355a297e2082> /usr/lib/system/libsystem_notify.dylib
0x18380d000 - 0x183816fff libsystem_platform.dylib arm64  <a379af6653c135cf82b522c3ff750111> /usr/lib/system/libsystem_platform.dylib
0x183817000 - 0x183826fff libsystem_pthread.dylib arm64  <c5a2cc4b897a3109bbf55c74611e34ff> /usr/lib/system/libsystem_pthread.dylib
0x183827000 - 0x18382afff libsystem_sandbox.dylib arm64  <13f1a62ee9213f7dbebf333b6430253b> /usr/lib/system/libsystem_sandbox.dylib
0x18382b000 - 0x183832fff libsystem_symptoms.dylib arm64  <a6bdbf14eb5e3b84b57fe9c00eb59f8e> /usr/lib/system/libsystem_symptoms.dylib
0x183833000 - 0x183846fff libsystem_trace.dylib arm64  <6b63233d7e3c38989c3a97e404f681c4> /usr/lib/system/libsystem_trace.dylib
0x183847000 - 0x18384cfff libunwind.dylib arm64  <6288d2abbde239f293405082835ba85c> /usr/lib/system/libunwind.dylib
0x18384d000 - 0x18384dfff libvminterpose.dylib arm64  <a978f300a2d530abba50518254983be0> /usr/lib/system/libvminterpose.dylib
0x18384e000 - 0x183878fff libxpc.dylib arm64  <ad99f31a5f2d3ec6a6623da01b813b26> /usr/lib/system/libxpc.dylib
0x183879000 - 0x183a9afff libicucore.A.dylib arm64  <a2f179b63753316d943b53a643e28199> /usr/lib/libicucore.A.dylib
0x183a9b000 - 0x183aacfff libz.1.dylib arm64  <cc396ca7a9d133d4898e573cc46ec982> /usr/lib/libz.1.dylib
0x183aad000 - 0x183e43fff CoreFoundation arm64  <533c841ed6e9313d8adb02388744e2ef> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x183e44000 - 0x183e54fff libbsm.0.dylib arm64  <b0ed5ab849a4342c835353a5d5533e06> /usr/lib/libbsm.0.dylib
0x183e55000 - 0x183e55fff libenergytrace.dylib arm64  <5195d5f14e163fc9bfc99099ae7a624f> /usr/lib/libenergytrace.dylib
0x183e56000 - 0x183edafff IOKit arm64  <3127eabe1492309fb5969e42bf114fb4> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x183edb000 - 0x183fc2fff libxml2.2.dylib arm64  <f78bd85cb5a436428967b4fac25a8277> /usr/lib/libxml2.2.dylib
0x183fc3000 - 0x183fd0fff libbz2.1.0.dylib arm64  <cdf0f19925fe33fbb5909928bc44fd5b> /usr/lib/libbz2.1.0.dylib
0x183fd1000 - 0x183fe9fff liblzma.5.dylib arm64  <deb8a124684f30729d528075ef8d61ef> /usr/lib/liblzma.5.dylib
0x183fea000 - 0x18414efff libsqlite3.dylib arm64  <219334ef89cf30099c3f85f925d853b3> /usr/lib/libsqlite3.dylib
0x18414f000 - 0x184175fff libMobileGestalt.dylib arm64  <bbffbd9fbedb3addab355b6754cdd52f> /usr/lib/libMobileGestalt.dylib
0x184176000 - 0x184524fff CFNetwork arm64  <5dd14d4bd2673faf96771b930286ef44> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x184525000 - 0x18481dfff Foundation arm64  <e53f9393bfc83ef58520b0fe6b193183> /System/Library/Frameworks/Foundation.framework/Foundation
0x18481e000 - 0x18491efff Security arm64  <463e762d34b338ea9980566a0881d6fa> /System/Library/Frameworks/Security.framework/Security
0x18491f000 - 0x18498afff SystemConfiguration arm64  <658c4230686b3358a53006396fbe7605> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x18498b000 - 0x1849c0fff libCRFSuite.dylib arm64  <f44a46da006038f09432eb00a2b65697> /usr/lib/libCRFSuite.dylib
0x1849c1000 - 0x1849c1fff libapple_crypto.dylib arm64  <0a68153dfbfc33b096374e95fb1271bd> /usr/lib/libapple_crypto.dylib
0x1849c2000 - 0x1849d8fff libapple_nghttp2.dylib arm64  <8bb1455b0f653519956db1c8af6d57a1> /usr/lib/libapple_nghttp2.dylib
0x1849d9000 - 0x184a02fff libarchive.2.dylib arm64  <4590f76c617938f7a3a9e248ecc42d44> /usr/lib/libarchive.2.dylib
0x184a03000 - 0x184ab1fff libboringssl.dylib arm64  <63cd14a3c2853e66b440603eb7ff2b14> /usr/lib/libboringssl.dylib
0x184ab2000 - 0x184ac8fff libcoretls.dylib arm64  <193a4fc806793432a8b2bb3d8a6a8ec4> /usr/lib/libcoretls.dylib
0x184ac9000 - 0x184acafff libcoretls_cfhelpers.dylib arm64  <84f7425f13a33870843fa1c5ef4f8d0b> /usr/lib/libcoretls_cfhelpers.dylib
0x184acb000 - 0x184accfff liblangid.dylib arm64  <ca04122dcd66354db9a53d9f0e91f855> /usr/lib/liblangid.dylib
0x184acd000 - 0x184c43fff libnetwork.dylib arm64  <f569233e2f2234f58ecb96b0e73be240> /usr/lib/libnetwork.dylib
0x184c44000 - 0x184c76fff libpcap.A.dylib arm64  <5389a8069179359eb6822edd62328659> /usr/lib/libpcap.A.dylib
0x184c77000 - 0x184cd3fff libusrtcp.dylib arm64  <b41d8854b30d3531803a81f7f4892593> /usr/lib/libusrtcp.dylib
0x184cd4000 - 0x184cdefff IOSurface arm64  <1f24b80565013f8d94b5e18c144f24bc> /System/Library/Frameworks/IOSurface.framework/IOSurface
0x184cdf000 - 0x184d84fff libBLAS.dylib arm64  <bda6fa96025e3513848156f93c78ddc0> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
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0x1850a6000 - 0x185315fff vImage arm64  <b864841843df38bb99e1dff0e1d24732> /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/vImage
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0x185328000 - 0x18534cfff libvMisc.dylib arm64  <7ada6cde719335328636b01d59e23ea9> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvMisc.dylib
0x18534d000 - 0x185374fff libBNNS.dylib arm64  <fa4ef0a7739237d4a3316c137346c5ad> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBNNS.dylib
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0x18538f000 - 0x1853fefff libSparse.dylib arm64  <7d403dc3c958325e9b99fad4e762d67e> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libSparse.dylib
0x1853ff000 - 0x18548afff libvDSP.dylib arm64  <d323dc33dd9f39c19e6264c6ede7dd3f> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x18548b000 - 0x18548bfff vecLib arm64  <d54284636d7a3a03987a1f4f2f67ea6a> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
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0x1854a5000 - 0x1859ecfff CoreGraphics arm64  <fe0391ed3c9e384297a8881d062b918e> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
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0x1859f9000 - 0x185a91fff Metal arm64  <75ac7e6ccf3f3d3480834bb05d135ae3> /System/Library/Frameworks/Metal.framework/Metal
0x185a92000 - 0x185aa5fff GraphicsServices arm64  <5011ec2511d73a56af501e8207d54962> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x185aa6000 - 0x185bfffff MobileCoreServices arm64  <1c7aad7b6c9838be92f57def5dc0bb48> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
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0x185c03000 - 0x185c44fff AppleJPEG arm64  <9694d27d99bb3fd495ac1637cbf481fb> /System/Library/PrivateFrameworks/AppleJPEG.framework/AppleJPEG
0x185c45000 - 0x1861f5fff ImageIO arm64  <728aeffd50883729bc1ac09900f05cf2> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x1861f6000 - 0x186259fff BaseBoard arm64  <aa88860acbaa3956ba60308b015e76f7> /System/Library/PrivateFrameworks/BaseBoard.framework/BaseBoard
0x18625a000 - 0x186271fff AssertionServices arm64  <704c5673295930ac919167ed66370a94> /System/Library/PrivateFrameworks/AssertionServices.framework/AssertionServices
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0x1862c0000 - 0x1862d8fff CrashReporterSupport arm64  <664297ffbb053da880ba4abd9744ff6b> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport
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0x1862df000 - 0x186363fff libTelephonyUtilDynamic.dylib arm64  <ce4b5783b921344c98102d1fe39ff4b5> /usr/lib/libTelephonyUtilDynamic.dylib
0x186364000 - 0x186383fff ProtocolBuffer arm64  <943af0e9b45b3fd6baddddf8345b225a> /System/Library/PrivateFrameworks/ProtocolBuffer.framework/ProtocolBuffer
0x186384000 - 0x1863b1fff MobileKeyBag arm64  <c51fbc49562f363987add532858b39da> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x1863b2000 - 0x1863e6fff BackBoardServices arm64  <2c754edcf542309b8e08b9b92faadbd9> /System/Library/PrivateFrameworks/BackBoardServices.framework/BackBoardServices
0x1863e7000 - 0x186442fff FrontBoardServices arm64  <b3f8d45a36a23c5e8cc959f932b54c68> /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices
0x186443000 - 0x18647ffff SpringBoardServices arm64  <122e574234ab39f299e3746a9935c821> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x186480000 - 0x18648efff PowerLog arm64  <d545e5f6846e3e73830195337810cdc8> /System/Library/PrivateFrameworks/PowerLog.framework/PowerLog
0x18648f000 - 0x1864abfff CommonUtilities arm64  <38d46d0ba5fb3da484ede2f09666eb1a> /System/Library/PrivateFrameworks/CommonUtilities.framework/CommonUtilities
0x1864ac000 - 0x1864b7fff liblockdown.dylib arm64  <d7a412e5f22b38dabf4fb58a6a099370> /usr/lib/liblockdown.dylib
0x1864b8000 - 0x1867bcfff CoreData arm64  <30f1740d9c5b3cebbf4b45a483bd7f49> /System/Library/Frameworks/CoreData.framework/CoreData
0x1867bd000 - 0x1867c3fff TCC arm64  <41d6c5214523319cad2cfc08e373215a> /System/Library/PrivateFrameworks/TCC.framework/TCC
0x1867c4000 - 0x1867cbfff libcupolicy.dylib arm64  <000f564141b33ed6a13eb30e70c5108a> /usr/lib/libcupolicy.dylib
0x1867cc000 - 0x18685dfff CoreTelephony arm64  <0967acf8b11f35778f2cfedd46f416b5> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x18685e000 - 0x1868b5fff Accounts arm64  <461434904ced3ea396f9cea7f0867fd5> /System/Library/Frameworks/Accounts.framework/Accounts
0x1868b6000 - 0x1868dffff AppleSauce arm64  <07696ffe11503e0faa1888c0e243471f> /System/Library/PrivateFrameworks/AppleSauce.framework/AppleSauce
0x1868e0000 - 0x1868e8fff DataMigration arm64  <fc7cc0db05273ef18990215a4bf5d7da> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
0x1868e9000 - 0x1868effff Netrb arm64  <5ad13c9650ce38b6b031bd2006f69a1c> /System/Library/PrivateFrameworks/Netrb.framework/Netrb
0x1868f0000 - 0x186922fff PersistentConnection arm64  <29383ceaac3e3cdd90da6fce980c4a19> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
0x186923000 - 0x186934fff libmis.dylib arm64  <96bab7b4c090392ab59bb2c97749c4c5> /usr/lib/libmis.dylib
0x186935000 - 0x186a3afff ManagedConfiguration arm64  <c2582da2a40336c0bf9a8a713789d253> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration
0x186a3b000 - 0x186a40fff libReverseProxyDevice.dylib arm64  <feda1d5064d1311a9024ced18653e1af> /usr/lib/libReverseProxyDevice.dylib
0x186a41000 - 0x186a53fff libamsupport.dylib arm64  <2301ae3f1b33360486010aff0a764568> /usr/lib/libamsupport.dylib
0x186a54000 - 0x186a59fff libCoreVMClient.dylib arm64  <828daf7904d738d7b51125b7d839f427> /System/Library/Frameworks/OpenGLES.framework/libCoreVMClient.dylib
0x186a5a000 - 0x186a5bfff libCVMSPluginSupport.dylib arm64  <ef1b895a2e513ef09f0b99b0ea52f2bc> /System/Library/Frameworks/OpenGLES.framework/libCVMSPluginSupport.dylib
0x186a5c000 - 0x186a5ffff libutil.dylib arm64  <f8cab493d4a5345ab42c833c1c3d753d> /usr/lib/libutil.dylib
0x186a60000 - 0x186aa0fff libGLImage.dylib arm64  <a4834764ada73a5a93935ac4f946d00b> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
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EOF

CrashWhenDrawingPolygon-2018-06-30-125327.ips.zip

Btw. when using SKGLView I get now and than artefacts like missing points, so that more parts are red than there should be or parts not red.

@mattleibow
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This appears to be a bug in skia itself. What you can do is try the latest update and see if it goes away.

I have been working in a branch, and CI has created some output:

Please note that these files are still in preview and this bot only produces the macOS bits (iOS, Android, tvOS, watchOS, macOS). I hope to release a version this week - even if just a preview release.

Let me know if you have any questions.

@mattleibow
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I can't say for certain - because much has changed - but it may also have to do with this issue: #647

@pauldendulk
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I can not reproduce the crash when updating the test project with v1.68.0-preview28.

@ghost ghost locked as resolved and limited conversation to collaborators Aug 19, 2022
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