Closed Bug 325427 Opened 19 years ago Closed 9 years ago

SVG <use> hang with reference loops

Categories

(Core :: SVG, defect)

Product:
Core
Component:
SVG
Type:
defect
Priority:
Not set
Severity:
critical

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: jruderman, Assigned: jwatt)

References

Details

(Keywords: hang, perf)

Attachments

(4 files)

partially reduced testcase
(deleted), image/svg+xml
Details
testcase without extraneous <g> tags
(deleted), image/svg+xml
Details
testcase further reduced to remove attributes from <line>, <rect> and <text> tags
(deleted), image/svg+xml
Details
testcase minimized - hangs 10+ seconds
(deleted), image/svg+xml
Details
Attached image partially reduced testcase (deleted) —
I'm finding it difficult to reduce this further by guessing, because many changes cause it to hang for 10 seconds instead of hanging indefinitely.
I noticed that memory usage increases by about 1MB per second until I kill Firefox using Task Manager. Btw, I'm using Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20060131 Firefox/1.6a1.
I also experience various hanging conditions. Does anyone have an idea of what are the causes behind this behaviour? Even if a fix is not provided, knowing what sort of SVG documents to avoid would be useful.
WFM (Intel Mac, trunk, debug). But I originally reported this on Windows, so I'm not marking it as WFM.
Still present in current trunk builds on Windows.
Assignee: general → nobody
QA Contact: ian → general
Attached image testcase without extraneous <g> tags (deleted) —
This just takes out the extraneous <g> tags. The testcase still hangs for quite a long time for me on mac - 23 seconds - but not as long as the original.
Simply removing the attributes from the <line>, <rect> and <text> tags further reduces the hang time to about 16 seconds.
Assignee: nobody → jwatt
Keywords: perf
Blocks: 592129
OS: Windows XP → All
Hardware: x86 → All
Summary: SVG hang, possibly due to reference loop → SVG <use> hang with reference loops
Attached image testcase minimized - hangs 10+ seconds (deleted) —
Testcase works without issue now.
Status: NEW → RESOLVED
Closed: 9 years ago
Flags: in-testsuite+
Resolution: --- → WORKSFORME
Depends on: 1219868
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