Re: cvs tag mmap error

[Mark D. Baushke]

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Ed Swierk <address@hidden> writes:

> Hello,
> 
> Since upgrading our CVS server to 1.11.17 running on Fedora Core 2,
> we've been getting the following error when attempting to cvs tag a
> large number of files:
> 
>    cvs [tag aborted]: Could not map memory to RCS archive
>    /cvs/vs-linux/streamstor/linux-2.6.3/arch/um/kernel/tt/ptproxy/wait.c,v:
>    No such file or directory
> 
> The file triggering the error varies, but it always exists on the
> server. The client is running 1.11.5 and talks to the server via
> pserver.
> 
> Any idea what could be causing this problem?

The error is returned when mmap() fails to return the buffer in
src/rcs.c::rcsbuf_open().

Given that mmap is not used for very large files, my best guess is that
you are running into a ulimit problem for virtual memory.

Try running 'ulimit -a' while logged into your cvs server. Look at the
'max memory size' as well as 'virtual memory' stats and if the are
already 'unlimited' then you may wish to see if there are any memory
faults in the system or if the system itself is running out of swap
space.

        Good luck,
        -- Mark

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