trying to clarify initrd vs initramfs vs neither

2008-06-23 Thread Robert P. J. Day
i'm reading the code under init/ and checking "make menuconfig" to clarify what choices you have in building in support for initrd/initramfs. as in, if you do "make menuconfig", under "General features," you see a single selection to choose whether you want *any* of that support (that would be

Re: about the address of the variable

2008-06-23 Thread Steven Zhou
Thanks for your help. I think I've got it. From the programmer's view, we can just see the logical address only. The picture "logical address--->(segmentation) --->linear address--->(paging) --->physical address" was processed by kernel and hardware, so user mode programmer does not care it. He

Re: Memory usage and /proc/meminfo question

2008-06-23 Thread Joris van Rantwijk
On Mon, Jun 23, 2008 at 07:10:07PM +0530, karunakar rao wrote: > > > I noticed LowTotal,LowFree entries are missing . > > > Can any one explain why those entries are not there.even HighTotal and > > > HighFree are missing. > > >It is an x86_64 kernel, so it does not support highmem. > ya thanks

Re: Memory usage and /proc/meminfo question

2008-06-23 Thread karunakar rao
On Mon, Jun 23, 2008 at 6:13 PM, Joris van Rantwijk <[EMAIL PROTECTED]> wrote: > On Mon, Jun 23, 2008 at 05:36:48PM +0530, karunakar rao wrote: > > in /proc/meminfo > > I noticed LowTotal,LowFree entries are missing . > > Can any one explain why those entries are not there.even HighTotal and > > H

Re: Memory usage and /proc/meminfo question

2008-06-23 Thread Joris van Rantwijk
On Mon, Jun 23, 2008 at 05:36:48PM +0530, karunakar rao wrote: > in /proc/meminfo > I noticed LowTotal,LowFree entries are missing . > Can any one explain why those entries are not there.even HighTotal and > HighFree are missing. It is an x86_64 kernel, so it does not support highmem. Joris. --

Re: Memory usage and /proc/meminfo question

2008-06-23 Thread karunakar rao
in /proc/meminfo I noticed LowTotal,LowFree entries are missing . Can any one explain why those entries are not there.even HighTotal and HighFree are missing. Thnaks, karunkara. On Sun, Jun 22, 2008 at 12:23 PM, Joris van Rantwijk <[EMAIL PROTECTED]> wrote: > Hello, > > My system recently starte

Re: about the address of the variable

2008-06-23 Thread Thomas Petazzoni
Hi, Le Mon, 23 Jun 2008 06:45:47 -0500, "Mayank Kaushik" <[EMAIL PROTECTED]> a écrit : > Under x86, we have both segmentation and paging. Here's a rough flow: > > Logical Address (:) ---> (segmentation)---> Linear > address ---> (paging)---> Physical Address. In Linux, all segments have a size

Re: about the address of the variable

2008-06-23 Thread Mayank Kaushik
Please correct me if i'm wrong, this is from my understanding. Under x86, we have both segmentation and paging. Here's a rough flow: Logical Address (:) ---> (segmentation)---> Linear address ---> (paging)---> Physical Address. In protected mode, the processor takes the value of whatever is in t

Re: Sound driver problem

2008-06-23 Thread Roman Mindalev
Hi! You have compiled module for your soundcard? > "Sound server informational message > Error while initialising sound driver : device /dev/dsp cant be opened > (No such file or directory) Sound server can't found device, because driver not loaded > While booting the kernel i am getting a line >

Re: about the address of the variable

2008-06-23 Thread karunakar rao
I took the following lines from understanding linux kernel book. All Linux processes running in User Mode use the same pair of segments to address instructions and data. These segments are called user code segmentand user data segment , respectively. Similarly, all Linux processes running in Kerne