325427 - SVG <use> hang with reference loops

Status: RESOLVED WORKSFORME

(Core :: SVG, defect)

Description

[Jesse Ruderman]

Comment 1

[Jesse Ruderman]

Attachment: partially reduced testcase

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.

Comment 2

[Jesse Ruderman]

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.

Comment 3

[JP Fiset]

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.

Comment 4

[Jesse Ruderman]

WFM (Intel Mac, trunk, debug).  But I originally reported this on Windows, so I'm not marking it as WFM.

Comment 5

[Jonathan Watt [:jwatt]]

Still present in current trunk builds on Windows.

Comment 6

[Jonathan Watt [:jwatt]]

Attachment: testcase without extraneous <g> tags

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.

Comment 7

[Jonathan Watt [:jwatt]]

Attachment: testcase further reduced to remove attributes from <line>, <rect> and <text> tags

Simply removing the attributes from the <line>, <rect> and <text> tags further reduces the hang time to about 16 seconds.

Comment 8

[Jonathan Watt [:jwatt]]

Attachment: testcase minimized - hangs 10+ seconds

Comment 9

[Ryan VanderMeulen [:RyanVM]]

Testcase works without issue now.

Comment 10

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/e410daf2c587

Comment 11

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/e410daf2c587