Bug 131802

Summary:	[New Multicolumn] fast/multicol/float-multicol.html asserts in calculateBalancedHeight
Product:	WebKit	Reporter:	Dave Hyatt <hyatt>
Component:	Layout and Rendering	Assignee:	Dave Hyatt <hyatt>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	jonlee, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	528+ (Nightly build)
Hardware:	Unspecified
OS:	Unspecified

Description Dave Hyatt 2014-04-17 13:12:06 PDT

If you resize your window to be narrow, then we hit an assertion in RenderMultiColumnSet::calculateBalancedHeight().

Specifically:

ASSERT(m_minSpaceShortage != RenderFlowThread::maxLogicalHeight()); 

If you remove this assert, everything seems to lay out correctly still (since there is an if that just bails).

Comment 1 Dave Hyatt 2014-04-17 13:59:56 PDT

vertical-lr/float-multicol also.

Comment 2 Dave Hyatt 2014-04-17 14:02:08 PDT

vertical-rl/float-multicol also

Note that the layout is sub-optimal as well, but that is arguably debatable.

Comment 3 Radar WebKit Bug Importer 2014-04-17 23:13:02 PDT

<rdar://problem/16656289>

Comment 4 Dave Hyatt 2014-04-21 12:07:16 PDT

This was fixed by r167602.