If I have a settings.cfg file to swap rows and columns, I get a stack trace:

refdb Version: 1.03

<verbatim>
plxcji042 cfgs$
Error: (open-input-file) cannot open file - Too many open files: "rhqa/settings.cfg"

        Call history:

        refdb-module.scm:341: pathname-directory
        refdb-module.scm:341: refdb#conf-get-record
        refdb-module.scm:775: conc
        refdb-module.scm:775: file-exists?
        refdb-module.scm:776: conc
        refdb-module.scm:776: refdb#read-dat
        refdb-module.scm:324: ##sys#get-keyword
        refdb-module.scm:325: file-exists?
        refdb-module.scm:330: regex#regexp
        refdb-module.scm:331: regex#regexp
        refdb-module.scm:332: regex#regexp
        refdb-module.scm:333: regex#regexp
        refdb-module.scm:334: regex#regexp
        refdb-module.scm:335: regex#regexp
        refdb-module.scm:336: regex#regexp
        refdb-module.scm:337: open-input-file           <--

</verbatim>