On Wed, 2005-04-27 at 15:06 -0400, Dan Malek wrote: > On Apr 27, 2005, at 2:49 PM, Josh Green wrote: > > > ...... I was > > planning on doing some additional gdb debugging of the failure > > (especially the initial large MMAP attempt by iptables, which was 1.5GB > > in my case). > > Oh wait .... I found a bug a while ago from someone trying to load > large modules. There is a problem if the kernel grows to need > additional PTE tables, the top level pointers don't get propagated > correctly and subsequent access by a thread that didn't actually > do the allocation would fail. I'm looking into this, including your > past message about 64-bit PTEs. additional note: the problem only shows up for me only when enabling CONFIG_64BIT_PHYS_ADDR, in case someone had problems reproducing the issue... regards, -- Herbert Valerio Riedel <hvr@xxxxxxxxxx>
