Hello,<div><br></div><div>I am trying to get some more information about the following issue:</div><div><br></div><div><div># strace -p 2256</div><div>attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted</div></div>

<div><br></div><div>I am trying to trace an mdadm re-sync pid and I keep getting the above error.</div><div><br></div><div>I have done some digging on google and forums, but have not had much luck.</div><div><br></div><div>

Redhat-release says </div><div><br></div><div>CentOS release 5.5 (Final)</div><div><br></div><div>uname:</div><div>2.6.18-194.32.1.el5</div><div><br></div><div>Any help would be great.</div><div><br></div><div>-Eric</div>