[Qemu-devel] [Bug 1802684] Re: QEMU gui crashes on macOS Mojave

[Peter Maydell]

https://patchew.org/QEMU/address@hidden/
is an RFC patchset which tries to address all the locking issues and
make the main thread run only the Cocoa UI event loop, with no blocking
operations in UI event callbacks. It's RFC because (as noted in the last
two comments) it's not clear any more if it's a necessary refactoring.

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https://bugs.launchpad.net/bugs/1802684

Title:
  QEMU gui crashes on macOS Mojave

Status in QEMU:
  New

Bug description:
  QEMU release 3.0.0 as well as a recent head build

  /usr/local/Cellar/qemu/HEAD-03c1ca1 (147 files, 257.2MB)
    Built from source on 2018-11-06 at 13:41:32 with: --with-gtk+3 --with-sdl2 
--with-libusb
  /usr/local/Cellar/qemu/3.0.0 (137 files, 261.6MB) *
    Poured from bottle on 2018-11-10 at 22:58:32 with: --with-gtk+3 
--with-libusb --with-sdl2

  Crashes when attempting to use any gui interface (tried SDL and
  default Cocoa):

  2018-11-10 22:58:41.799 qemu-system-aarch64[42982:1102466] *** Terminating 
app due to uncaught exception 'NSInternalInconsistencyException', reason: 
'NSWindow drag regions should only be invalidated on the Main Thread!'
  *** First throw call stack:
  (
        0   CoreFoundation                      0x00007fff3ea96ecd 
__exceptionPreprocess + 256
        1   libobjc.A.dylib                     0x00007fff6ab49720 
objc_exception_throw + 48
        2   CoreFoundation                      0x00007fff3eab095d 
-[NSException raise] + 9
        3   AppKit                              0x00007fff3bfb13fa 
-[NSWindow(NSWindow_Theme) 
_postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 324
        4   AppKit                              0x00007fff3bfb6850 -[NSView 
setFrameSize:] + 2082
        5   AppKit                              0x00007fff3c02747d 
-[NSVisualEffectView setFrameSize:] + 171
        6   AppKit                              0x00007fff3c0811b1 
-[NSTitlebarView setFrameSize:] + 84
        7   AppKit                              0x00007fff3bfb5859 -[NSView 
setFrame:] + 478
        8   AppKit                              0x00007fff3c081154 
-[NSTitlebarView resizeWithOldSuperviewSize:] + 100
        9   AppKit                              0x00007fff3bfbc95e -[NSView 
resizeSubviewsWithOldSize:] + 502
        10  AppKit                              0x00007fff3bfb66d9 -[NSView 
setFrameSize:] + 1707
        11  AppKit                              0x00007fff3c9773c0 
-[NSTitlebarContainerView setFrameSize:] + 142
        12  AppKit                              0x00007fff3bfb5859 -[NSView 
setFrame:] + 478
        13  AppKit                              0x00007fff3bfbcdb5 -[NSView 
resizeWithOldSuperviewSize:] + 776
        14  AppKit                              0x00007fff3bfbc95e -[NSView 
resizeSubviewsWithOldSize:] + 502
        15  AppKit                              0x00007fff3bfb66d9 -[NSView 
setFrameSize:] + 1707
        16  AppKit                              0x00007fff3c024570 
-[NSThemeFrame setFrameSize:] + 495
        17  AppKit                              0x00007fff3c011223 -[NSWindow 
_setFrame:updateBorderViewSize:] + 966
        18  AppKit                              0x00007fff3c010b46 -[NSWindow 
_oldPlaceWindow:] + 547
        19  AppKit                              0x00007fff3c010151 -[NSWindow 
_setFrameCommon:display:stashSize:] + 3006
        20  AppKit                              0x00007fff3c00f57d -[NSWindow 
_setFrame:display:allowImplicitAnimation:stashSize:] + 192
        21  AppKit                              0x00007fff3c019ff8 -[NSWindow 
setFrame:display:animate:] + 567
        22  qemu-system-aarch64                 0x000000010b7b2abf 
qemu-system-aarch64 + 3668671
        23  qemu-system-aarch64                 0x000000010b7b6356 
qemu-system-aarch64 + 3683158
        24  qemu-system-aarch64                 0x000000010b7ad836 
qemu-system-aarch64 + 3647542
        25  qemu-system-aarch64                 0x000000010b4ce769 
qemu-system-aarch64 + 636777
        26  qemu-system-aarch64                 0x000000010b487c24 
qemu-system-aarch64 + 347172
        27  qemu-system-aarch64                 0x000000010b487a15 
qemu-system-aarch64 + 346645
        28  qemu-system-aarch64                 0x000000010b4878f1 
qemu-system-aarch64 + 346353
        29  qemu-system-aarch64                 0x000000010b4414aa 
qemu-system-aarch64 + 58538
        30  qemu-system-aarch64                 0x000000010b4f78c3 
qemu-system-aarch64 + 805059
        31  qemu-system-aarch64                 0x000000010b487c24 
qemu-system-aarch64 + 347172
        32  qemu-system-aarch64                 0x000000010b487a15 
qemu-system-aarch64 + 346645
        33  qemu-system-aarch64                 0x000000010b4878f1 
qemu-system-aarch64 + 346353
        34  qemu-system-aarch64                 0x000000010b4b8f57 
qemu-system-aarch64 + 548695
        35  qemu-system-aarch64                 0x000000010b49c3af 
qemu-system-aarch64 + 431023
        36  ???                                 0x00000001117891f3 0x0 + 
4588081651
  )
  libc++abi.dylib: terminating with uncaught exception of type NSException
  fish: 'qemu-system-aarch64 -M raspi3 -…' terminated by signal SIGABRT (Abort)

  
  macOS Mojave 10.14.2 Beta (18C38b)
  Qemu in the same configuration used to work in High Sierra, started crashing 
only after upgrade to Mojave.

  Command line:
  `qemu-system-aarch64 -M raspi3 -d in_asm -serial stdio -kernel $1.bin`

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