[Webkit-unassigned] [Bug 97763] REGRESSION(r129186): Pressing enter at the end of a line deletes the line

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=97763





--- Comment #4 from Levi Weintraub <leviw at chromium.org>  2012-09-27 13:25:22 PST ---
Managed to get a stacktrace on the bad access. Added that top function for debugging purposes ;)

This is an issue we've seen before, where Layout has occurred, but something went wrong in Layout where things were dirtied during layout (I've seen this) or not everything in the tree was laid out (I haven't seen this).

Since I can only get this to repro in GMail, a reduction is going to be really difficult.

#0  WebCore::InlineTextBox::OMGPROBLEM (this=0x7f121431cd98) at ../../third_party/WebKit/Source/WebCore/rendering/InlineTextBox.cpp:177
#1  0x0000000001bb6c5e in WebCore::InlineTextBox::start (this=0x7f121431cd98) at ../../third_party/WebKit/Source/WebCore/rendering/InlineTextBox.h:72
#2  0x0000000002d8272e in WebCore::Position::upstream (this=0x7fff12a61660, rule=WebCore::CannotCrossEditingBoundary) at ../../third_party/WebKit/Source/WebCore/dom/Position.cpp:675
#3  0x00000000023c8e2b in WebCore::VisiblePosition::canonicalPosition (this=0x7fff12a61770, passedPosition=...) at ../../third_party/WebKit/Source/WebCore/editing/VisiblePosition.cpp:523
#4  0x00000000023c6efb in WebCore::VisiblePosition::init (this=0x7fff12a61770, position=..., affinity=WebCore::DOWNSTREAM) at ../../third_party/WebKit/Source/WebCore/editing/VisiblePosition.cpp:58
#5  0x00000000023c6ec1 in VisiblePosition (this=0x7fff12a61770, pos=..., affinity=WebCore::DOWNSTREAM) at ../../third_party/WebKit/Source/WebCore/editing/VisiblePosition.cpp:51
#6  0x000000000239724e in WebCore::FrameSelection::localCaretRect (this=0x7f1213e1b7d0) at ../../third_party/WebKit/Source/WebCore/editing/FrameSelection.cpp:1251
#7  0x00000000023975f6 in WebCore::FrameSelection::recomputeCaretRect (this=0x7f1213e1b7d0) at ../../third_party/WebKit/Source/WebCore/editing/FrameSelection.cpp:1304
#8  0x0000000002399664 in WebCore::FrameSelection::updateAppearance (this=0x7f1213e1b7d0) at ../../third_party/WebKit/Source/WebCore/editing/FrameSelection.cpp:1701
#9  0x00000000025919e2 in WebCore::FrameView::performPostLayoutTasks (this=0x7f121376f380) at ../../third_party/WebKit/Source/WebCore/page/FrameView.cpp:2435
#10 0x000000000258d099 in WebCore::FrameView::layout (this=0x7f121376f380, allowSubtree=true) at ../../third_party/WebKit/Source/WebCore/page/FrameView.cpp:1235
#11 0x0000000002cdb484 in WebCore::Document::updateLayout (this=0x7f12134ad000) at ../../third_party/WebKit/Source/WebCore/dom/Document.cpp:1928
#12 0x0000000002cdb555 in WebCore::Document::updateLayoutIgnorePendingStylesheets (this=0x7f12134ad000) at ../../third_party/WebKit/Source/WebCore/dom/Document.cpp:1960
#13 0x00000000023c8e03 in WebCore::VisiblePosition::canonicalPosition (this=0x7fff12a61e20, passedPosition=...) at ../../third_party/WebKit/Source/WebCore/editing/VisiblePosition.cpp:519
#14 0x00000000023c6efb in WebCore::VisiblePosition::init (this=0x7fff12a61e20, position=..., affinity=WebCore::DOWNSTREAM) at ../../third_party/WebKit/Source/WebCore/editing/VisiblePosition.cpp:58
#15 0x00000000023c6ec1 in VisiblePosition (this=0x7fff12a61e20, pos=..., affinity=WebCore::DOWNSTREAM) at ../../third_party/WebKit/Source/WebCore/editing/VisiblePosition.cpp:51
#16 0x00000000039ba2d7 in WebCore::DOMSelection::collapse (this=0x7f1215099b90, node=0x7f1213a60380, offset=0, ec=@0x7fff12a61f0c) at ../../third_party/WebKit/Source/WebCore/page/DOMSelection.cpp:210
#17 0x00000000032c6a80 in collapseCallback (args=...) at gen/webcore/bindings/V8DOMSelection.cpp:131
#18 0x000000000149c3ea in HandleApiCallHelper<false> (args=..., isolate=0x7f1223c42000) at ../../v8/src/builtins.cc:1146
#19 0x0000000001497049 in Builtin_Impl_HandleApiCall (args=..., isolate=0x7f1223c42000) at ../../v8/src/builtins.cc:1164
#20 0x000000000149701a in Builtin_HandleApiCall (args=..., isolate=0x7f1223c42000) at ../../v8/src/builtins.cc:1163

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