RE: "u area" virtual address

["Ajay Singh \(ajaysi\)" <ajaysi@xxxxxxxxx>]

 

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From: kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies-bounce@xxxxxxxxxxxx] On Behalf Of Abhijit Pawar
Sent: Sunday, March 11, 2007 4:59 PM
To: kernelnewbies@xxxxxxxxxxxx
Subject: "u area" virtual address

Hi List,

 

I was going through the Unix process structure  was checking about the U Area in the kernel. Its mentioned that there is a specific virtual address assigned to the U Area in each process and for kerne this address is same.

I tried to check that address in the source but did not found it.

Can any one inform me whats is the virtual address assigned for the U Area for all the process? 

 

There are differences in Unix and Linux process structures. U-area structures were used in old unix implementation where it was stored on secondary storage because RAM was scarce. Later it was merged into main process structure as in Linux. Someone please CMIIAW.

 

Also see:

http://www.uwsg.iu.edu/hypermail/linux/kernel/9604/1686.html 

Thanks.

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Abhijit.