On 2014-11-22, Vadim Zhukov <persg...@gmail.com> wrote: > Crazy idea just out of head: > > 1. Put /bin/sh and /usr/bin/kdump (both are statically linked) inside > chroot. Rename them if you feel unsafe. > 2. Write a shell script that runs 'exec ktrace -if ... perl ... "$@"'. Make > sure ktrace will be able to write its output file, it will be run as CGI > user! > 3. Make this script handle a connection in your web server/FastCGI config. > 4. Run kdump on resulting ktrace output file and investigate problems. > > If you won't get ktrace output, you'll likely have problem with FastCGI > itself, look at its logs then.
Simpler way: run slowcgi under ktrace (with the -i flag).