Hi Dave, Thanks for the quick response. That was the issue I was having. I am now able to use vtop. crash> vtop -c 23619 7fff7efa16a6 VIRTUAL PHYSICAL 7fff7efa16a6 201d126a6 PML: 2a948d7f8 => 3f031a067 PUD: 3f031afe8 => 1ed481067 PMD: 1ed481fb8 => 2c9af2067 PTE: 2c9af2d08 => 201d12005 PAGE: 201d12000 PTE PHYSICAL FLAGS 201d12005 201d12000 (PRESENT|USER) VMA START END FLAGS FILE ffff81041195dce8 7fff7efa0000 7fff7efa2000 100173 PAGE PHYSICAL MAPPING INDEX CNT FLAGS ffff810107065bf0 201d12000 ffff8101eee276f1 7fffffffe 1 200100000000278 So how do I get at the information that is proved by ps -a? What I'm really after is the arguments of the command. Thanks again. Steven Soulen Unless otherwise indicated, this message is intended only for the personal and confidential use of the designated recipient(s) named above. If you are not the intended recipient of this message you are hereby notified that any review, dissemination, distribution or copying of this message is strictly prohibited. This communication is for information purposes only and should not be regarded as an offer to sell or as a solicitation of an offer to buy any financial product or service, an official confirmation of any transaction, or as an official statement of the entity sending this message. Email transmission cannot be guaranteed to be secure or error-free. Therefore, we do not represent that this information is complete or accurate and it should not be relied upon as such. All information is subject to change without notice.