Hi Sven,

On Mon, Nov 12, 2018 at 5:37 AM Sven Van Caekenberghe <sven@stfx.eu> wrote:

Hi,

I run Pharo 7 64-bit on a macOS laptop, where the images are kept running across sleep/wake cycles.

For many weeks, it often happens that an image crashes before/after such a sleep/wakeup (not all the time, just regularly).

Here is a crash dump from today (fresh image/vm from WE, nothing special loaded).

Related to scheduling ? Event handling ?

The stack trace points to OpenGL rendering:

2 �� Pharo �� sigsegv + 155

3 �� libsystem_platform.dylib �� _sigtramp + 29

4 �� ??? �� 0x0 + 0

5 �� AppleIntelKBLGraphicsGLDriver �� glrUpdateTexture + 8979

6 �� libGPUSupportMercury.dylib �� gpusLoadCurrentTextures + 591

7 �� AppleIntelKBLGraphicsGLDriver �� updateDispatch + 663

8 �� GLEngine �� gleDoDrawDispatchCore + 629

9 �� GLEngine �� glDrawArraysInstanced_STD_Exec + 264

10 ��GLEngine �� glDrawArrays_UnpackThread + 40

11 ��GLEngine �� gleCmdProcessor + 77

12 ��libdispatch.dylib �� _dispatch_client_callout + 8

13 ��libdispatch.dylib �� _dispatch_lane_barrier_sync_invoke_and_complete + 60

14 ��GLEngine �� glFlush_ExecThread + 15

15 ��Pharo �� -[sqSqueakOSXOpenGLView drawRect:flush:] + 301

16 ��Pharo �� -[sqSqueakOSXOpenGLView drawRect:] + 43

17 ��AppKit �� _NSViewDrawRect + 66

18 ��AppKit �� -[NSView _drawRect:clip:] + 1745

19 ��AppKit �� -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1400

20 ��AppKit �� -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2622

21 ��AppKit �� -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 938

22 ��AppKit �� -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 65

23 ��AppKit �� -[NSView _oldDisplayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 1887

24 ��AppKit �� -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 253

25 ��AppKit �� -[NSView displayIfNeeded] + 1300

26 ��AppKit �� -[NSWindow displayIfNeeded] + 283

27 ��AppKit �� __NSWindowGetDisplayCycleObserverForDisplay_block_invoke + 722

28 ��AppKit �� NSDisplayCycleObserverInvoke + 170

29 ��AppKit �� NSDisplayCycleFlush + ��1073

30 ��QuartzCore �� _ZN2CA11Transaction19run_commit_handlersE18CATransactionPhase + 49

31 ��QuartzCore �� _ZN2CA11Transaction6commitEv + 186

32 ��AppKit �� __65+[CATransaction(NSCATransaction) NS_setFlushesWithDisplayRefresh]_block_invoke + 274

33 ��CoreFoundation �� __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23

34 ��CoreFoundation �� __CFRunLoopDoObservers + 452

35 ��CoreFoundation �� __CFRunLoopRun + 1166

36 ��CoreFoundation �� CFRunLoopRunSpecific + 463

37 ��Foundation �� -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 280

38 ��Pharo �� -[sqSqueakMainApplication(events) pumpRunLoop] + 103

39 ��Pharo �� -[sqSqueakOSXApplication(events) pumpRunLoop] + 43

40 ��Pharo �� vmIOProcessEvents + 255

and this is core VM code, so likely an pensmalltalk-vm macOS platform bug, hence best discussed on vm-dev.�� Can you describe exactly the steps you take to reproduce the crash?

_,,,^..^,,,_

best,��Eliot