Re: Pentium 4 and 2.4/2.5

Alan, are you saying that rep;nop is not needed in the spinlocks? (because they are for P4) Thanks Lyle - Original Message - From: "Alan Cox" <[EMAIL PROTECTED]> To: "Andre Hedrick" <[EMAIL PROTECTED]> Cc: "Frank Davis" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, November 07,

Re: malloc(1/0) ??

When a program does a malloc... the glibc gets atleast on page (brk) [actually, glibs determins of it needs to brk more memory from the kernel... because it maintains it;s own pool].. so if you malloc 4 byts, you can copy to that pointer more than 4 bytes (upto a page size, ex 4K)... hope that ans

Linus's poll variation

Hello, Is someone working on Linus's poll variation discussed in this list a week ago? Thanks Lyle - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/

Re: Linux's implementation of poll() not scalable?

Hi, If you have a similar machine (in terms machine configuration) for both your solaris and linux machines... could you tell us what the difference in total time for 100 and 1 was? i.e... dont compare solaris with 100 descripters vs solaris with 1 descriptors, but rather Linux 100 descri

No Subject

Hi, If you have a similar machine (in terms machine configuration) for both your solaris and linux machines... could you tell us what the difference in total time for 100 and 1 was? i.e... dont compare solaris with 100 descripters vs solaris with 1 descriptors, but rather Linux 100 des

No Subject

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Re: Clear interrupts on a SMP machine?

Hello, I am still not sure why you cannot use an IPI for this... on the CPU that you want to access this resource, send an IPI to all other CPUs, and add code in handling that IPI that they should spin and wait till you are done with accessing the chip... then let the other CPUs continue. Best

RE: SSE instructions

Hello, 2.4.0-test1 and higher. make sure you select PIII as the CPU in the config. Best Wishes, Lyle -- Which version of the kernel is needed in order to run the following program on an PIII? void main() { __asm__ __volatile__("xorps %%xmm0, %%xmm1" ::: "memory"); } astor -- Alexande

Re: Question: Using floating point in the kernel

Lyle - Original Message - From: "Ricky Beam" <[EMAIL PROTECTED]> To: "Lyle Coder" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Wednesday, September 20, 2000 9:13 PM Subject: Re: Question: Using floating point in the kernel > On Wed, 20 Sep 2000, Lyl

Re: Question: Using floating point in the kernel

Hello, You cannot use MMX registers in the kernel either, since the kernel doesen't save and restore FX state (fxsave, fxrstor) either (just like (fsave/frstor). Best Wishes, Lyle ** Reply to message from "Richard B. Johnson" <[EMAIL PROTECTED]> on Tue, 19 Sep 2000 11:58:34 -0400 (EDT) >Tel