[Mono-list] crash in Mono runtime related to GdipDeleteGraphics

[jrjr]

To add another data point, here's another crash stack trace, different from
the one above, but still related to GdipDeleteGraphics:


_wapi_connect: error looking up socket handle 0x12
Stacktrace:


Native stacktrace:

	mono() [0x80e6431]
	mono() [0x812697c]
	mono() [0x8062aff]
	[0xb770b40c]
	/usr/lib/i386-linux-gnu/libcairo.so.2(cairo_font_face_destroy+0x1e)
[0xb385739e]
	/usr/lib/i386-linux-gnu/libcairo.so.2(+0x77149) [0xb38a9149]
	/usr/lib/i386-linux-gnu/libcairo.so.2(cairo_font_face_destroy+0x4f)
[0xb38573cf]
	/usr/lib/i386-linux-gnu/libcairo.so.2(+0x286ce) [0xb385a6ce]
	/usr/lib/i386-linux-gnu/libcairo.so.2(+0x247da) [0xb38567da]
	/usr/lib/i386-linux-gnu/libcairo.so.2(+0x24862) [0xb3856862]
	/usr/lib/i386-linux-gnu/libcairo.so.2(cairo_destroy+0x39) [0xb384ca39]
	/usr/lib/libgdiplus.so(GdipDeleteGraphics+0x80) [0xb3a4bcb0]
	[0xb2ef2aa0]
	[0xb2ef2a24]
	[0xb2ef2990]
	[0xb2ef1f28]
	[0xb2ef1eb4]
	[0xb2ef1e70]
	[0xb2ef1e00]
	[0xb2ef1c64]
	[0xb2ef1bf8]
	[0xb2ef1a7d]
	[0xb2ef197c]
	[0xb4641edc]
	[0xb463eefe]
	[0xb67e1cad]
	mono() [0x8066dcc]

Debug info from gdb:

mono: /build/buildd/cairo-1.12.2/src/cairo.c:301: cairo_destroy: Assertion
`((*&(&cr->ref_count)->ref_count) > 0)' failed.
Could not attach to process.  If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.
Aborted (core dumped)




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