[Bug 4868] New: hgweb goes out of memory when diffing large xml file

[mercurial-bugs at selenic.com]

http://bz.selenic.com/show_bug.cgi?id=4868

            Bug ID: 4868
           Summary: hgweb goes out of memory when diffing large xml file
           Product: Mercurial
           Version: stable branch
          Hardware: All
                OS: Linux
            Status: UNCONFIRMED
          Severity: bug
          Priority: wish
         Component: hgweb
          Assignee: bugzilla at selenic.com
          Reporter: eriksken at gmail.com
                CC: mercurial-devel at selenic.com

When trying to view a changeset containing a very large XML file (~150MB) in
any browser, hg serve starts eating all available memory. Memory usage got up
to nearly 10GB before the kernel killed the process on our production server.

This was tested on release 3.1.2 and the stable branch.

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