Date: Tue, 15 Jun 2004 14:46:05 +0200 From: Daniel Lang <dl@leo.org> To: freebsd-current@freebsd.org Subject: PAE on -current pitfalls and issues? Message-ID: <20040615124605.GA4779@atrbg11.informatik.tu-muenchen.de>
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--J/dobhs11T7y2rNN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I just got 6GB of RAM for our ftp-server running -CURRENT. Usually, I would have upgraded to the latest current, built a kernel with PAE and see how far I get. However, machines with > 4GB need some tweaking with respect to KVA. However in the NOTES files there is not much how to set the KVA_PAGES. How much would I need? pae(4) mentions tuning(7), which does not tell anything about PAE issues. But pae(4) says, that there may be issues with kernel-modules. So here are my questions: - Do I need to include 'options PAE' somehow into the build of the kernel-modules in order to use them? Or is a pure static kernel the only option? - Where do I find documentation how to set my KVA and to which size to not run into problems. - pae(4) includes some other hints how to tune, but maybe there are other things to look at? - Maybe someone running a PAE enabled server with > 4GB can give some useful hints from experience? - I usually use a downtime to upgrade the OS. However, since the netperf merge is currently in progress, I assume it's not the ideal time, to upgrade a production machine right now, is it? Thanks and best regards, Daniel --=20 IRCnet: Mr-Spock - Soon I will be free, then hungry. - =20 Daniel Lang * dl@leo.org * +49 89 289 18532 * http://www.leo.org/~dl/ --J/dobhs11T7y2rNN Content-Type: application/x-pkcs7-signature Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIIVcwYJKoZIhvcNAQcCoIIVZDCCFWACAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3DQEHAaCC EugwggcAMIIF6KADAgECAgIj0zANBgkqhkiG9w0BAQUFADByMQswCQYDVQQGEwJERTERMA8G A1UEBxMITXVlbmNoZW4xDDAKBgNVBAoTA1RVTTELMAkGA1UECxMCSU4xGDAWBgNVBAMTD1JC Ry1CZW51dHplci1DQTEbMBkGCSqGSIb3DQEJARYMY2FAaW4udHVtLmRlMB4XDTA0MDQyMzEz MTU1OFoXDTA1MDUzMTAwMDAwMFowdzELMAkGA1UEBhMCREUxETAPBgNVBAcTCE11ZW5jaGVu MQwwCgYDVQQKEwNUVU0xCzAJBgNVBAsTAklOMRQwEgYDVQQDEwtEYW5pZWwgTGFuZzEkMCIG CSqGSIb3DQEJARYVZGFuaWVsLmxhbmdAaW4udHVtLmRlMIIBIjANBgkqhkiG9w0BAQEFAAOC AQ8AMIIBCgKCAQEAs1d9JUkGBG8T4m1wlzqfK2IU6pEZQcA00/hX1hlAVY5Jwv18rJncrOym 1dXSLubRIWZEEDRDPYCK0RhGHtaBYOTZpBSWezVkC2g6ioWS9wsnJpk0GIJN+o+k9L7+3vzE 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