[Deskbar] Targeted handler does not belong to the looper

[diver]

This is hrev44113.

Deskbar crashed while trying to check ctrl+alt dragging.

Thread 157 called debugger(): Targeted handler does not belong to the looper.
[...]
[Switching to team /boot/system/Deskbar (115) thread w>Deskbar (157)]
0xffff0112 in ?? ()
(gdb) bt
#0  0xffff0112 in ?? ()
#1  0x006af7f0 in debugger () from /boot/system/lib/libroot.so
#2  0x0032e5f8 in BLooper::_TopLevelFilter () from /boot/system/lib/libbe.so
#3  0x003e0d95 in BWindow::task_looper () from /boot/system/lib/libbe.so
#4  0x0032ec76 in BLooper::_task0_ () from /boot/system/lib/libbe.so
#5  0x006b3247 in thread_entry () from /boot/system/lib/libroot.so
#6  0x780f6fec in ?? ()
(gdb)

[anevilyak]

Looks like this isn't a new problem...I'm able to reproduce it with regular dragging as well, even with my changes reverted. I suspect this is a race condition having to do with some of the weirdness Deskbar appears to be doing with ExpandoMenuBar when changing configurations.

[jscipione]

I cannot reproduce this on hrev44087 so it appears to have been introduced by hrev44112. After hrev44112 dragging from vertical mode to mini mode and back to vertical produces this crash reliably.

[jscipione]

Setting this as a blocker for R1A4. We can't release with such an easily triggered crashing bug in Deskbar.

[anevilyak]

Fixed in hrev44382.