Ravi K wrote: > > Hi, > The code in copy_thread() which sets the ESP is like > this: > > childregs = ((struct pt_regs *) (THREAD_SIZE + > unsigned long) p)) - 1; > ... > ... > p->thread.esp = (unsigned long) childregs; > > The value of THREAD_SIZE is 8192. So, effectively the > ESP is set to (p + 8191), which is top of the > allocated kernel stack. > From what I understand, the esp value passed in > pt_regs is the task's user-mode stack pointer > (probably used when switching back to user-mode). Thank you, that makes perfect sense! Cheers, -- Joe -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
