>Number: 3214 >Category: documentation >Synopsis: naieve following of the tuning advice for 10.20 can lead to >system panic >Confidential: no >Severity: serious >Priority: medium >Responsible: apache >State: open >Class: doc-bug >Submitter-Id: apache >Arrival-Date: Wed Oct 14 12:50:01 PDT 1998 >Last-Modified: >Originator: [EMAIL PROTECTED] >Organization: apache >Release: omnibus >Environment: HP-UX 10.20, any patch level past MR. >Description: When I provided tuning tips for HP-UX 10.20, I failed to mention the specifics of how to set tcp_hash_size in the kernel disc image. It is critically important that folks use "W" to write a 32 bit quantity, not "w" to write a 16 bit value when patching the disc image.
The tcp_hash_size parm is a 32 bit quantity, and using "w" will put a value into the _upper_ 16 bits of that value, which will cause it to be larger than the machine can take, and the box will panic upon reboot. >How-To-Repeat: Simply use the wrong case in the adb command and reboot. >Fix: Modify or append the tuning description to include a warning to use "W" instead of "w." Also, point-out that this particular tune is not applicable to HP-UX 11.X. That release has an entirely different set of tunes - if someone can give me a proper email address to submit them (I suspect the bug report page is not it :) I'd be happy to oblige >Audit-Trail: >Unformatted: [In order for any reply to be added to the PR database, ] [you need to include <[EMAIL PROTECTED]> in the Cc line ] [and leave the subject line UNCHANGED. This is not done] [automatically because of the potential for mail loops. ] [If you do not include this Cc, your reply may be ig- ] [nored unless you are responding to an explicit request ] [from a developer. ] [Reply only with text; DO NOT SEND ATTACHMENTS! ]
