Hi, when the OS task switches, it calls __switch_to(prev, next) function in arch/i386/kernel/process.c. I was just curious about the parameters prev and next. Normally, I would expect the pid of prev and next in successive calls to __switch_to() to be like the following: prev->pid: 0, next->pid: 100 prev->pid: 100, next->pid: 20 prev->pid: 20, next->pid 0 prev->pid: 0, next->pid 20 where the previous next->pid will be the same as the current prev->pid. I am wondering whether it is possible to have this constraint violated in any case? For instance, when a task terminates? Thanks. - Hai -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
