Thread:Project:Support desk/Warning: is executable(): open basedir restriction in effect

Since I've started a data refresh process that's necessary for Semantic MediaWiki, I'm seeing the following error message at the bottom of every page:

Warning: is_executable: open_basedir restriction in effect. File(/usr/bin/php) is not within the allowed path(s): ([...]/:/tmp/) in [...]/includes/Wiki.php on line 655 Line 655 refers to something beginning if ( !wfShellExecDisabled && is_executable( $wgPhpCli ) )

No shell access as I'm on a shared host (with Suhosin enabled). Decreasing JobRunRate from "1" to e.g. "0.5" helps somewhat to reduce occurrences of the error message, but it does not solve the issue, let alone speed up the process.

With some googling you'll find a variety of solutions for PHP configuration issues involving "open_basedir restriction in effect", but almost none of them seems to cover this specific situation. The exception may be here, where the third suggestion about setting $wgPhpCli to a dummy value (?) might or might not be helpful in my case.

Any idea what could be done about it?