On Mon, Jul 9, 2012 at 12:24 PM, Will Roberts <[email protected]> wrote: > On 06/17/2012 08:08 PM, Will Roberts wrote: >> >> strace is producing no output. Infinite loop without syscalls? >> >> I also tried attaching with gdb, but even as root I'm getting "ptrace: >> Operation not permitted." Any ideas on what that means? Or other ways to >> get some information for you guys? > > > I'm still having this issue. Any ideas why strace/gdb won't work for me in > trying to debug this?
A quick search suggest that you are using some kernel security crap, I don't know much about it but try this: echo 0 > /proc/sys/kernel/yama/ptrace_scope Or simply start squid from gdb instead of attaching to the existing process. Alan
