Apache suexec won't work with strace

I have an Apache instance with mod_suexec enabled. I'm trying to debug a problem and am starting Apache with strace to try and see what's happening. However, when I start Apache like this: # strace -f -o /tmp/apache.strace /etc/init.d/apache2 start I get this in the error log: suexec failure: could not open log file fopen: Permission denied However, when I start Apache normally, everything works correctly. I presume that some mechanism in use by mod_suexec is being upset by the use of strace, but I'm unclear as to what exactly is happening. Is there any way of using strace and having mod_suexec work correctly?