>>>>> "Al" == Al Viro <viro@xxxxxxxxxxxxxxxxxx> writes: Al> On Wed, Oct 20, 2010 at 09:10:27AM -0400, John Stoffel wrote: >> Does this mean I can't replace /bin/sh on a running system using IMA >> at all, even if just one process has it opened and is running? So how >> the hell am I supposed to do live upgrades on a system? Al> rename(2). Prohibition against write(2) to binary being executed is Al> *old*. Try to do the following: Al> cp /bin/sh /tmp Al> /tmp/sh & Al> cat /bin/ls >/tmp/sh Al> and you'll get Al> sh: /tmp/sh: Text file busy Al> That has nothing to do with IMA... Duh, makes sense. Thanks for educating me. I still IMA is a waste of system resources... John -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
