Xpages 1.6.1 not working on Domino 8.5.3 server

Question

We are trying to ramp up to using xpages in our apps but have run into a snag. We are running Domino 8.5.3 FP6 on Linux. I have a very simple xpages app with just a view control that works fine on my local machine but when I put it on the server the view paging links don't do anything. In Firebug I can see that both GET dojo.js and GET xspClientDojo.js are throwing a 500 Internal Server Error.

Nothing logs to the xpages log or the server log. If I set xsp.client.script.dojo.version=1.5.1 in the xsp.properties then the errors go away and everything works. I have tried this on 2 different servers with the same result. Everything in the database is signed by me and I am in the group listed in all the Programmability Restrictions fields in the server document. Any ideas would be greatly appreciated!

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Update

Jon's question about logs made me poke around again to make sure we weren't missing something. I found this in the startup.log:

!SESSION 2015-01-28 11:37:34.357
-----------------------------------------------
eclipse.buildId=unknown
java.fullversion=JRE 1.6.0 IBM J9 2.4 Linux x86-32 jvmxi3260sr16-20141010_216764 (JIT enabled, AOT enabled)
J9VM - 20141010_216764
JIT  - r9_20140523_64469ifx2
GC   - GA24_Java6_SR16_20141010_1202_B216764
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments:  -noSplash true true true
Command-line arguments:  -console -data /home/notes/data/domino/workspace -noSplash true -clean true -noExit true

!ENTRY org.eclipse.osgi 4 0 2015-01-28 11:37:34.362
!MESSAGE Bundle com.ibm.domino.osgi.core@15 not found.

!ENTRY org.eclipse.update.configurator 4 0 2015-01-28 11:37:34.631
!MESSAGE /home/notes/data/domino/workspace/.config/domino/eclipse/plugins/plugins is not a valid plugins directory.

I don't see anything in the notes.ini that would pertain to this path. Where would this path be set?

com.ibm.domino.osgi.core_xxx.jar is in /opt/lotus/notes/latest/linux/osgi/shared/eclipse/plugins

However, if I enter tell http osgi diag com.ibm.domino.osgi.core at the server console it returns update@../../shared/eclipse/plugins/com.ibm.domino.osgi.core_8.5.3.20131121-1400.jar [112] No unresolved constraints.