On Wed, 8 Feb 2006, Andi Kleen wrote:
> > So a provisional solution would be to simply ignore empty zones in
> > bind_zonelist?
>
> That would likely prevent the crash yes (Bharata can you test?)
>
> But of course it still has the problem of a lot of memory being unpolicied
> on machines with >4GB if there's both DMA32 and NORMAL.
The fix could result in a zonelist with no zones. So we can answer one
question in __alloc_pages().
Index: linux-2.6.16-rc2/mm/page_alloc.c
===================================================================
--- linux-2.6.16-rc2.orig/mm/page_alloc.c 2006-02-08 00:05:09.000000000 -0800
+++ linux-2.6.16-rc2/mm/page_alloc.c 2006-02-08 08:18:59.000000000 -0800
@@ -913,7 +913,7 @@ restart:
z = zonelist->zones; /* the list of zones suitable for gfp_mask */
if (unlikely(*z == NULL)) {
- /* Should this ever happen?? */
+ /* May occur if MPOL_BIND results in an empty zonelist */
return NULL;
}
-
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
