From the Debian bug discussion, this appears to be a problem with psmisc and not really fixable in PHP5. So I'm going to mark this as Invalid for PHP5, and Triaged for psmisc. It may be worth bringing in 22.15's fuser into 11.10 to fix this, as I can't imagine php is the only thing that regularly makes use of fuser.
From the Debian bug discussion, this appears to be a problem with psmisc and not really fixable in PHP5. So I'm going to mark this as Invalid for PHP5, and Triaged for psmisc. It may be worth bringing in 22.15's fuser into 11.10 to fix this, as I can't imagine php is the only thing that regularly makes use of fuser.