by Mikael Chambo » Tue, 10 Apr 2001 19:52:55
Could someone explain me clearly what is the difference between the
kernel mode and user mode ??
In the book "Understanding the linux kernel p 252", I road that
the kernel checks if a signal has arrived when switching from user
mode to kernel mode.
Can someone give me the .c file where this is done ?? I would like
to add something..
Thanks for all,
Mikael Chambon
by Kasper Dupon » Tue, 10 Apr 2001 22:40:33
> Hi,
> Could someone explain me clearly what is the difference between the
> kernel mode and user mode ??
> In the book "Understanding the linux kernel p 252", I road that
> the kernel checks if a signal has arrived when switching from user
> mode to kernel mode.
It is not done in a .c file, it is done in assemblerQuote:> Can someone give me the .c file where this is done ?? I would like
> to add something..
arch/i386/kernel/entry.S
The do_signal() function is in
arch/i386/kernel/signal.c
--Quote:> Thanks for all,
> Mikael Chambon
1. kernel mode to user mode overhead
Does anyone have real world measure mentregarding the cost of making user to
kernel
mode transition? I am evaluating the possibility of porting some of the
fucntion into an FPGA
and would like to assess the performance of speed up from the hardware
implemenation.
Are there any reference out there?
Thanks,
Jimmy
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9. Fastest IPC Mechanism & How to choose b/w User Mode and Kernel Mode
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11. Can't boot into single user mode OR multiuser mode!
12. How to boot in single user mode, the root filesystem mounted in read/WRITE mode
13. Driver performace "Kernel Mode" and "Module Mode"?