vim hangs when loading/scrolling attached file

[Jack Leigh]

When the attached file is loaded in vim it lags massively and uses 100% of one cpu. Tested on two computers, maverick and oneiric. The maverick instance of vim is untouched/as installed.
Something to do with really long lines/wrapping?

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: vim 2:7.3.154+hg~74503f6ee649-2ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-16.29-generic-pae 3.0.20
Uname: Linux 3.0.0-16-generic-pae i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Fri Feb 17 23:48:53 2012
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
SourcePackage: vim
UpgradeStatus: Upgraded to oneiric on 2011-09-22 (148 days ago)

[Vadim Rutkovsky (roignac)]

Confirmed and sent upstream

[David Hoeffer (d-hoeffer)]

It's caused by the syntax highlighting, which uses regular expression and slows down to a crawl on long lines. Do ":syntax off" and you'll be able to work fine. Alternatively you can limit syntax highlighting to the fist n columns by doing for example "set synmaxcol=120".

[Vadim Rutkovsky (roignac)]

Upstream comment from Bram:
"Try this:

       :set synmaxcol=100

The syntax rules are too complex.

For .svg we use the XML syntax file, CCing the maintainer.
Not sure if we can do anything about it."
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