User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040113 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040113 I went to http://landsbank.fo/gz/unicode.html with Mozilla 1.6. Loading this page the browser froze and jumped to 100% CPU utilization, where it remained until I stopped it with the task manager. Internet Explorer 6.0.2800.1106 handles the page fine. Reproducible: Always Steps to Reproduce: 1. Gp to http://landsbank.fo/gz/unicode.html 2. Observe how the 1.6 browser freezes with 100% CPU 3. Actual Results: Browser froze Expected Results: Browser shouldn't have froze
Yep, locks up here too. Tried with 1.6 and 1.7b on linux.
On my system (1.7b/20040420, win2k) Mozilla is NOT freezing but completely unresponsive for 1-3 minutes. Additionaly, it consumes about 128 MB RAM. Maybe, this bug is related to/dup of bug 116437. The example URL is a tar/gzipped XML-document, btw.
It took 2-3 minutes to come up on build 2004042108. When I did it a second time to did not come up at all. This is on Windows XP Pro.
gzipped, sure. But there's not one itty bit of tar involved. The real issue here are all the unescaped things like "<control>", "<noBreak>", ets scattered about the file. These lead to a content tree that is O(N) in depth; reflow on such a tree is very slow in Mozilla. I did profile this, and the profile shows nothing unexpected -- a good chunk of time taken looking for fonts, and just tons and tons of reflow happening. Not surprising. We already have bugs both on the fact that broken markup like this produces deep trees and on the fact that reflow on such trees is very slow.
Er, I was wrong. There is in fact tar... which they claim is HTML. The thing inside the tarball is SO not XML, though (as soon as an XML parser hits the </p>, it'll drop the whole thing and return a well-formedness error....
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a3) Gecko/20040827 confirming the behavior: freezing for some minutes (Athlon 500: 20 min) and allocation of memory of about 300MByte. IE took 2-3 min to load the page.
Kenan, we know.
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