Another point not mentioned yet is that when booting from a device, the entire opsys must be read into virtual memory before its execution begins. When IPL'ing from a Named Saved System, the spool space it resides in acts as page space, and the pages are paged in as required. So your execution begins after reading a single page, instead of after reading the entire opsys. In read-write segments, after the page is paged in on your behalf, it becomes your page and is then handled by the normal paging system.
---- Robert P. Nix internet: [EMAIL PROTECTED] Mayo Clinic phone: 507-284-0844 200 1st St. SW page: 507-255-3450 Rochester, MN 55905 ---- "In theory, theory and practice are the same, but in practice, theory and practice are different." > -----Original Message----- > From: Gregg C Levine [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, October 16, 2002 3:00 PM > To: [EMAIL PROTECTED] > Subject: Re: NSS-Support for Linux Kernel under VM > > Hello from Gregg C Levine > Sorry!! Minor typo: " What is the NSS, and how does is it used by VM, > and > now by the Linux kernel.?" > Should read, "What is the NSS, and how is it used by VM, and how by the > Linux Kernel?" > ------------------- > Gregg C Levine [EMAIL PROTECTED] > ------------------------------------------------------------ > "The Force will be with you...Always." Obi-Wan Kenobi > "Use the Force, Luke." Obi-Wan Kenobi > (This company dedicates this E-Mail to General Obi-Wan Kenobi ) > (This company dedicates this E-Mail to Master Yoda ) > > > > > -----Original Message----- > > From: Linux on 390 Port [mailto:LINUX-390@;VM.MARIST.EDU] On Behalf Of > > Gregg C Levine > > Sent: Wednesday, October 16, 2002 3:48 PM > > To: [EMAIL PROTECTED] > > Subject: Re: [LINUX-390] NSS-Support for Linux Kernel under VM > > > > Hello from Gregg C Levine > > Now I'm confused. What is the NSS, and how does is it used by VM, and > > now by the Linux kernel. > > ------------------- > > Gregg C Levine [EMAIL PROTECTED] > > ------------------------------------------------------------ > > "The Force will be with you...Always." Obi-Wan Kenobi > > "Use the Force, Luke." Obi-Wan Kenobi > > (This company dedicates this E-Mail to General Obi-Wan Kenobi ) > > (This company dedicates this E-Mail to Master Yoda ) > > > > > > > > > -----Original Message----- > > > From: Linux on 390 Port [mailto:LINUX-390@;VM.MARIST.EDU] On Behalf > > Of > > > Rick Troth > > > Sent: Wednesday, October 16, 2002 3:37 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: [LINUX-390] NSS-Support for Linux Kernel under VM > > > > > > > To make the bootstrap decide which ones are overrides > > > > and which are additions is going to be ugly. I'm sure we > > > > > > The "bootstrap" does not decide that. > > > > > > > could make it very complicated, but we decided to simply > > > > append the parameters from the IPL statement to what is > > > > > > Yes, a simple "append" is probably the best choice. > > > That is what LILO does, and it seems to work. You get three > places > > > where the parm line is defined: initial (gen by LILO), "appened" > > > in any LILO stanza, and then whatever is entered at boot time. > > > > > > > in the NSS already. Main reason to combine both is that > > > > the 64 byte from the IPL statement is a bit small. > > > > > > Yes, small. But better than what we have now, which is nothing. > > > > > > > It's then up to the particular code in the kernel when > > > > the same parameter occurs twice. > > > > > > Yes, just as things are in the LILO case. > > > May not be perfect, but works well for PCs and would work well > here.
