On Wednesday 19 September 2007 18:16:25 Jan Beulich wrote: > >>> Andi Kleen <[EMAIL PROTECTED]> 19.09.07 18:09 >>> > >On Wednesday 19 September 2007 16:39:39 Jan Beulich wrote: > >> One more of these issues (which were considered fixed a few releases > >> back): Other than on x86-64, i386 allows set_fixmap() to replace > >> already present mappings. Consequently, on PAE, care must be taken to > >> not update the high half of a pte while the low half is still holding > >> the old value. > > > >Hmm perhaps it would be better to just forbid it on i386 too. > >Do you know who uses it? > > PCI's mmconfig accessor. One could of course make it call clear_fixmap() prior > to establishing a new mapping, but I thought that was not intended and is the > reason for allowing this.
Makes sense. Applied thanks. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
