On Thu, Jan 27, 2005 at 06:48:56PM +0200, Jacques Fourie wrote: > Hi, > > Yes, I am trying to patch a piece of code in the kernel. The strange > thing is that this code works without a problem on FreeBSD 4.8 - has > the VM system changed to such an extent between 4.8 and 4.9 that the > pages in the kernel code segment are not writeable anymore? > > Thanks for the bit about the compiler optimization - at least I > understand that part now :)
They should have never been writable. You should be able to change that protection on the page temporarily though to achieve the effect you want; take a look at e.g. mprotect(), you should be able to do much the same thing with kernel_map instead. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> [EMAIL PROTECTED] \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\ _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
