I am trying to implement Linus' suggestion on LKML 9/27/01 - regarding the limitation on the size of the strings passed to sys_execve through the argv and envp pointers. Linus asserted that he would like to see the limit go away and that it should be done by reassigning the pages containing the args in the old VM to the new VM. However it seems to me that if any arg string falls after any envp string on any page in the old VM it would be impossible to maintain the assumption that mm->arg_end < mm->env_start since the design calls for the pages to be reassigned from the old VM to the new VM, not copied. I thought about adding a final flag to execve() to assert that this relationship holds, in which case sys_execve would try to use the no-copy scheme, but this would break posix compliance wouldn't it? __________________________________________________ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com -- 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/
