Created attachment 488872 [details] Reduced testcase (Component / summary is just a guess) Mozilla/5.0 (Windows NT 5.1; rv:2.0b8pre) Gecko/20101108 Firefox/4.0b8pre Visiting the linked URL or the reduced testcase in a current nightly build pegs the CPU at 100% for 3 minutes, whereas IE8 takes < 1 sec. This is a slow PC, but it's not normally *that* slow, and I seem to be experiencing > 20 second hangs all over the web at the moment which may be related. As far as I can see (I'm not a jQuery guru) it loops over about 190 <option> elements inside one <select> and appends them to another <select>. Notes: non-SSE2 processor, therefore no methodjit. No accelerated gfx. Extensions disabled.
Tested in 3.6 and trunk, no hangs observed. Does this happen in 3.6 too?
> Notes: non-SSE2 processor, therefore no methodjit. Mounir, do you see the problem if you disable methodjit? If so, sounds like bug 607856 to me.
Indeed, I wasn't careful enough and it doesn't work with methodjit disabled. Marking as a duplicate of bug 607856 for the moment. Alistair, feel free to reopen if this isn't fixed when bug 607856 is fixed.
Status: NEW → RESOLVED
Last Resolved: 8 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 607856
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