62.50 KB, application/zip
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9pre) Gecko/2008042906 Minefield/3.0pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9pre) Gecko/2008042906 Minefield/3.0pre using minefield apr29 on windows 2000 or ff3b5 on ubuntu hardy, do this URL: http://ddebs.ubuntu.com/dists/hardy/universe/binary-i386/Packages On ubuntu the entire windows goes gray as the app is completely unresponsive. On windows, I can't use any menus, I can't click STOP or BACK etc (all TABs in all minefield windows becomes unresponsive). Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 319608 [details] I broke into windbg a couple of times and sampled some stacks (zipped log from windbg)
Confirmed on Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5 and a more recent nightly. It took over a minute of loading before it became unresponsive. I'm on 0.5Mbit connection, so perhaps it's something in the code of the page itself at a certain point causing this?
Most of those stacks are textrun construction. The file is text/plain, so I would have thought bug 386122 would have helped here... Doing a shark of this right now to see whether that tells me anything useful.
Looking bottom-up, Shark says that 10.6% of the time is in TextRunWordCache::MakeTextRun, 9.9% of the time is in nsTextRunWordCache::CacheHasEntry::KeyEquals, 9.6% s in gfxTextRun::CopyGlyphDataFrom, 6.4% is in SearchTable (mostly called from TextRunWordCache::LookupWord), 5.9% in IsWordBoundary, 5.6% in nsTextFrameUtils::TransformTExt, 3.2% in nsLineBox::IndexOf (called from nsBlockInFlowIterator::nsBlockInFlowIterator), 3.1% in BuildTextRunsScanner::BuildTextRunForFrames, 3.1% is IsBoundarySpace, 2.6% in BuildTextRunsScanner::FlushFrames. Top-down, 61.8% of the time is under nsTextFrame::EnsureTextRun. Note that I just profiled for 60s somewhere near the beginning of the load; it might well be that this fraction is higher when more of the page is loaded.
still a pig. and UI still mostly unresponsive. Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:18.104.22.168) Gecko/20100713 Firefox/3.6.7 (.NET CLR 3.5.30729)
Browser is responsive for me on trunk. It pauses at times during loading, but I don't see the symptoms of comment 0.
agreed. 4.0b3pre (with desktop) is much better. WFM I'll try a more modest laptop, but I expect the same results