SVN missing libexpat.so.0 while it is present

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cyberwizzard
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SVN missing libexpat.so.0 while it is present

Post by cyberwizzard » 2008/11/11 20:26:13

I am trying to fix Subversion which isn't working for me on one of our machines: every attempt to run 'svn ls' or 'svn co' ends in:
[code]svnserve: error while loading shared libraries: libexpat.so.0: cannot open shared object file: No such file or directory[/code]

Which is rediculous as the symlink is present in /lib/libexpat.so.0 (which points to /lib/libexpat.so.0.5.0) and /usr/lib/libexpat.so.0 - I even tried copying an identical libexpat.so.0.5.0 from another machine. Next I ran 'ldd -r /usr/bin/svnserve':
[code] ldd -r /usr/bin/svnserve
linux-gate.so.1 => (0x009df000)
libsvn_repos-1.so.0 => /usr/lib/libsvn_repos-1.so.0 (0x008a1000)
libsvn_fs-1.so.0 => /usr/lib/libsvn_fs-1.so.0 (0x00110000)
libsvn_fs_fs-1.so.0 => /usr/lib/libsvn_fs_fs-1.so.0 (0x0034f000)
libsvn_fs_base-1.so.0 => /usr/lib/libsvn_fs_base-1.so.0 (0x00c2d000)
libsvn_fs_util-1.so.0 => /usr/lib/libsvn_fs_util-1.so.0 (0x00857000)
libsvn_delta-1.so.0 => /usr/lib/libsvn_delta-1.so.0 (0x00f5f000)
libsvn_subr-1.so.0 => /usr/lib/libsvn_subr-1.so.0 (0x00ac1000)
libsvn_ra_svn-1.so.0 => /usr/lib/libsvn_ra_svn-1.so.0 (0x0094d000)
libz.so.1 => /usr/lib/libz.so.1 (0x00d8d000)
libaprutil-1.so.0 => /usr/lib/libaprutil-1.so.0 (0x0026c000)
libcrypt.so.1 => /lib/libcrypt.so.1 (0x06dfd000)
libldap-2.3.so.0 => /usr/lib/libldap-2.3.so.0 (0x005f6000)
liblber-2.3.so.0 => /usr/lib/liblber-2.3.so.0 (0x007b5000)
libdb-4.3.so => /lib/libdb-4.3.so (0x07144000)
libexpat.so.0 => /lib/libexpat.so.0 (0x0086a000)
libapr-1.so.0 => /usr/lib/libapr-1.so.0 (0x00116000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00d74000)
libdl.so.2 => /lib/libdl.so.2 (0x00d45000)
libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x06c45000)
libc.so.6 => /lib/libc.so.6 (0x0036d000)
libuuid.so.1 => /lib/libuuid.so.1 (0x00d64000)
libpq.so.4 => /usr/lib/libpq.so.4 (0x00167000)
libsqlite3.so.0 => /usr/lib/libsqlite3.so.0 (0x0028b000)
libresolv.so.2 => /lib/libresolv.so.2 (0x0013e000)
libssl.so.6 => /lib/libssl.so.6 (0x00a78000)
libcrypto.so.6 => /lib/libcrypto.so.6 (0x004b0000)
/lib/ld-linux.so.2 (0x00bdd000)
libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0x009e3000)
libnsl.so.1 => /lib/libnsl.so.1 (0x001bb000)
libgssapi_krb5.so.2 => /usr/lib/libgssapi_krb5.so.2 (0x00771000)
libcom_err.so.2 => /lib/libcom_err.so.2 (0x00337000)
libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0x00187000)
libkrb5support.so.0 => /usr/lib/libkrb5support.so.0 (0x005eb000)
libkeyutils.so.1 => /lib/libkeyutils.so.1 (0x0033c000)
libselinux.so.1 => /lib/libselinux.so.1 (0x001d2000)
libsepol.so.1 => /lib/libsepol.so.1 (0x00dad000)
[/code]

As you can see, all libs are found and present. I tried installing a custom Subversion 1.5.1 RPM which also fails the same way. Finally I installed all build tools and build the SRPM into a binary RPM and guess what? It also fails...

I tried rebooting the server, running 'yum update' a couple of times and right now I'm out of ideas....

gerald_clark
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SVN missing libexpat.so.0 while it is present

Post by gerald_clark » 2008/11/11 20:29:20

You don't even tell us what architecture you are running.
If it is 64bit, look in lib64.

cyberwizzard
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Re: SVN missing libexpat.so.0 while it is present

Post by cyberwizzard » 2008/11/11 21:53:49

Its x86 (not 64-bit) - CentOS 5.2

cyberwizzard
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Re: SVN missing libexpat.so.0 while it is present

Post by cyberwizzard » 2008/11/13 10:42:55

Finally solved the mystery - the error message is not from the local machine but the machine holding the SVN repo. SVN seems to spawn a remote copy on the target machine in order to access the repo. The SVN server was improperly updated and therefor actually did mis the libexpat.so.0 file.

The only thing I find annoying is that the local machine passed the error as being its own - I can see a lot of strange issues coming from this.

But it is solved! :-D

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toracat
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Re: SVN missing libexpat.so.0 while it is present

Post by toracat » 2008/11/13 12:02:21

Glad to hear the issue was solved and thank you for reporting back.

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