Closed
Bug 812817
Opened 12 years ago
Closed 12 years ago
"ASSERTION: Invalid display item type!" with Ctrl+Tab preview of about:memory
Categories
(Core :: Layout, defect)
Tracking
()
RESOLVED
FIXED
mozilla19
People
(Reporter: jruderman, Assigned: roc)
References
(Blocks 1 open bug)
Details
(Keywords: assertion, regression, testcase)
Attachments
(2 files)
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(deleted),
text/plain
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Details | |
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(deleted),
patch
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mattwoodrow
:
review+
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Details | Diff | Splinter Review |
1. Create a profile with:
user_pref("browser.ctrlTab.previews", true);
2. Launch Firefox
3. Ensure you have exactly one tab open
4. ⌘T, about:memory, Enter
5. ⌘T, about:memory, Enter
6. Ctrl+Tab
Result:
###!!! ASSERTION: Invalid display item type!: 'type > TYPE_ZERO && type < TYPE_MAX', file nsDisplayItemTypes.h, line 69
This assertion is part of code added in bug 798964. When the assertion fails, type is nsDisplayItem::TYPE_ZERO.
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Assignee | |
Comment 1•12 years ago
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Those STR do not work for me on Windows. Mac-only?
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Assignee | |
Comment 2•12 years ago
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FrameLayerBuilder::BuildContainerLayerFor can pass 0 as the display item key when constructing a root layer. So if the root frame of the root document has a background image, we'll hit this assertion. I suspect that's what's happening here.
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Assignee | |
Comment 3•12 years ago
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Assignee: nobody → roc
Attachment #682964 -
Flags: review?(matt.woodrow)
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Updated•12 years ago
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Attachment #682964 -
Flags: review?(matt.woodrow) → review+
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Assignee | |
Comment 4•12 years ago
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Comment 5•12 years ago
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Status: NEW → RESOLVED
Closed: 12 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla19
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Description
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