On Wed, 31 Aug 2005, Arjan van de Ven wrote: > On Wed, 2005-08-31 at 12:44 +0100, Hugh Dickins wrote: > > I was going to say, doesn't randomize_va_space take away the rest of > > the point? But no, it appears "randomize_va_space", as it currently > > appears in mainline anyway, is somewhat an exaggeration: it just shifts > > the stack a little, with no effect on the rest of the va space. > > it also randomizes mmaps
Ah, via PF_RANDOMIZE, yes, thanks: so long as certain conditions are fulfilled - and my RLIM_INFINITY RLIMIT_STACK has been preventing it. And mmaps include shmats: so unless the process specifies non-NULL shmaddr to attach at, it'll choose a randomized address for that too (subject to those various conditions). Which is indeed a further disincentive against shared page tables. Hugh - 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/