Bug 53469 – [chromium] compositing/scroll-painted-composited-content.html crashes on Mac

• Component: WebGL
• Status: RESOLVED FIXED

[Ryosuke Niwa]

http://trac.webkit.org/changeset/77172 has been crashing on Mac canary bot since http://trac.webkit.org/changeset/77172 was landed.

[Mihai Parparita]

This appears to be an interaction with another test; I can only reproduce the crash if I run:

new-run-webkit-tests --platform=chromium-gpu --verbose compositing/repaint/layer-repaint-rects.html compositing/scroll-painted-composited-content.html

I'm not getting a stack trace, and the one from a debug bot (http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Mac10.5%20%28dbg%29%282%29/builds/258/steps/webkit_gpu_tests/logs/stdio) looks mangled:

[80962:267:1311695793449825:ERROR:process_util_posix.cc(106)] Received signal 10
	0   DumpRenderTree                      0x0000468a _mh_execute_header + 13962
	1   DumpRenderTree                      0x005b5e0f start + 5865355
	2   libSystem.B.dylib                   0x90f1d2bb _sigtramp + 43
	3   ???                                 0xffffffff 0x0 + 4294967295
	4   DumpRenderTree                      0x00061456 start + 275922
	5   DumpRenderTree                      0x0006106f start + 274923
	6   DumpRenderTree                      0x0008c4a6 start + 452130
	7   DumpRenderTree                      0x00d620d9 start + 13910613
	8   DumpRenderTree                      0x00e9b9d2 float WebCore::narrowPrecisionToCGFloat<double>(double) + 1195046
	9   DumpRenderTree                      0x00e93b01 float WebCore::narrowPrecisionToCGFloat<double>(double) + 1162581
	10  DumpRenderTree                      0x000e0225 start + 795553
	11  DumpRenderTree                      0x00d8d2e7 float WebCore::narrowPrecisionToCGFloat<double>(double) + 87355
	12  DumpRenderTree                      0x00d8703b float WebCore::narrowPrecisionToCGFloat<double>(double) + 62095
	13  DumpRenderTree                      0x00d875ad float WebCore::narrowPrecisionToCGFloat<double>(double) + 63489
	14  DumpRenderTree                      0x000d65d7 start + 755539
	15  DumpRenderTree                      0x000d9f41 start + 770237
	16  DumpRenderTree                      0x000586d4 start + 239696
	17  DumpRenderTree                      0x00058952 start + 240334
	18  DumpRenderTree                      0x00038a1a start + 109462
	19  DumpRenderTree                      0x00042af4 start + 150640
	20  DumpRenderTree                      0x0002574f start + 30923
	21  DumpRenderTree                      0x000257d2 start + 31054
	22  DumpRenderTree                      0x00f3fcd9 float WebCore::narrowPrecisionToCGFloat<double>(double) + 1867565
	23  DumpRenderTree                      0x00f3fe6f float WebCore::narrowPrecisionToCGFloat<double>(double) + 1867971
	24  DumpRenderTree                      0x009fe625 start + 10356641
	25  DumpRenderTree                      0x009fe6e0 start + 10356828
	26  DumpRenderTree                      0x009fe705 start + 10356865
	27  ???                                 0x0647228e 0x0 + 105325198

+ more GPU folks, since I don't know much about this (all http://trac.webkit.org/changeset/77172 did was to make it so we actually pass --enable-accelerated-compositing --enable-accelerated-2d-canvas on the Mac too).

[Stephen White]

This test stopped crashing, I believe due to http://trac.webkit.org/changeset/89206/ which simply changed the sort order of tests, thus moving the crashes around.

See also http://crbug.com/86714 for where the crashiness ended up.