Failing on all platforms: http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/4985 http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.8/builds/4885 I don't see any suspicious changes in this range. Probably something happend on chromium side.
This is also crashing on debug builds: crash log for DumpRenderTree (pid 32416): STDOUT: <empty> STDERR: ASSERTION FAILED: start <= end STDERR: ../../third_party/WebKit/Source/WebCore/html/TimeRanges.cpp(117) : void WebCore::TimeRanges::add(float, float) STDERR: 1 0x7f15f48512c8 STDERR: 2 0x7f15f4850c56 STDERR: 3 0x7f15f311146b STDERR: 4 0x7f15f3111711 STDERR: 5 0x7f15f3deeb30 STDERR: 6 0x7f15f47f0a4e STDERR: 7 0x7f15f4b90bf1 STDERR: 8 0x7f15f9274631 STDERR: 9 0x7f15f9276b47 STDERR: 10 0x7f15f91fa1ac STDERR: 11 0x7f15f91fe210 STDERR: 12 0x116dedb062ee STDERR: Received signal 11 SEGV_MAPERR 0000bbadbeef STDERR: [0x7f15f72337b0] base::debug::StackTrace::StackTrace() STDERR: [0x7f15f723305a] base::debug::(anonymous namespace)::StackDumpSignalHandler() STDERR: [0x7f15ec7238f0] <unknown> STDERR: [0x7f15f48512d2] WebCore::TimeRanges::add() STDERR: [0x7f15f4850c56] WebCore::TimeRanges::TimeRanges() STDERR: [0x7f15f311146b] WebCore::TimeRanges::create() STDERR: [0x7f15f3111711] WebCore::MediaPlayerPrivateInterface::seekable() STDERR: [0x7f15f3deeb30] WebCore::MediaPlayer::seekable() STDERR: [0x7f15f47f0a4e] WebCore::HTMLMediaElement::seekable() STDERR: [0x7f15f4b90bf1] WebCore::HTMLMediaElementV8Internal::seekableAttrGetter() STDERR: [0x7f15f9274631] v8::internal::JSObject::GetPropertyWithCallback() STDERR: [0x7f15f9276b47] v8::internal::Object::GetProperty() STDERR: [0x7f15f91fa1ac] v8::internal::LoadIC::Load() STDERR: [0x7f15f91fe210] v8::internal::LoadIC_Miss() STDERR: [0x116dedb062ee] <unknown> STDERR: r8: 00007f15e5e657e0 r9: 00007f15f5016e1e r10: 0000000000000001 r11: 0000000000000000 STDERR: r12: 000039360ca4e250 r13: 00007fffa0d17860 r14: 0000000000000002 r15: 00007fffa0d17c90 STDERR: di: 0000000000000000 si: 00000000efcdab90 bp: 00007fffa0d17710 bx: 00007fffa0d17860 STDERR: dx: 00007f15ec70fe00 ax: 00000000bbadbeef cx: 00007f15ec46900d sp: 00007fffa0d176d0 STDERR: ip: 00007f15f48512d2 efl: 0000000000010246 cgf: 0000000000000033 erf: 0000000000000006 STDERR: trp: 000000000000000e msk: 0000000000000000 cr2: 00000000bbadbeef Updated expectations: http://trac.webkit.org/changeset/141440
This appears to have cleaned itself up. No crashes in any recent run (as much history as flakiness board shows).