[Webkit-unassigned] [Bug 219079] New: Web process assert when loading slack

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=219079

            Bug ID: 219079
           Summary: Web process assert when loading slack
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    svillar at igalia.com, zalan at apple.com

Since a few days ago I'm unable to use slack because my web process crashes:

1   0x7f63279098d9 WTFCrash
2   0x7f632c0f9154 WebCore::LayoutIntegration::LineLayout::contentLogicalHeight() const
3   0x7f632c5af081 WebCore::RenderBlockFlow::layoutModernLines(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
4   0x7f632c5f36f8 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
5   0x7f632c5c3c2a WebCore::RenderBlock::layout()
6   0x7f632c5e822f WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
7   0x7f632c5f32cd WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&)
8   0x7f632c5f3add WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
9   0x7f632c5c3c2a WebCore::RenderBlock::layout()
10  0x7f632c64046c WebCore::RenderFlexibleBox::layoutAndPlaceChildren(WebCore::LayoutUnit&, WTF::Vector<WebCore::FlexItem, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::LayoutUnit, bool, WTF::Vector<WebCore::RenderFlexibleBox::LineContext, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::LayoutUnit)
11  0x7f632c643ac3 WebCore::RenderFlexibleBox::layoutFlexItems(bool)
12  0x7f632c644286 WebCore::RenderFlexibleBox::layoutBlock(bool, WebCore::LayoutUnit)
13  0x7f632c5c3c2a WebCore::RenderBlock::layout()
14  0x7f632c5e822f WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
15  0x7f632c5f32cd WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&)
16  0x7f632c5f3add WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
17  0x7f632c5c3c2a WebCore::RenderBlock::layout()
18  0x7f632c5e822f WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
19  0x7f632c5f32cd WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&)
20  0x7f632c5f3add WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
21  0x7f632c5c3c2a WebCore::RenderBlock::layout()
22  0x7f632c5e822f WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
23  0x7f632c5f32cd WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&)
24  0x7f632c5f3add WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
25  0x7f632c5c3c2a WebCore::RenderBlock::layout()
26  0x7f632c5e822f WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&)
27  0x7f632c5f32cd WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&)
28  0x7f632c5f3add WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit)
29  0x7f632c5c3c2a WebCore::RenderBlock::layout()
30  0x7f632c64046c WebCore::RenderFlexibleBox::layoutAndPlaceChildren(WebCore::LayoutUnit&, WTF::Vector<WebCore::FlexItem, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::LayoutUnit, bool, WTF::Vector<WebCore::RenderFlexibleBox::LineContext, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::LayoutUnit)
31  0x7f632c643ac3 WebCore::RenderFlexibleBox::layoutFlexItems(bool)

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