![]() | |||||||||||||
Messages in this thread |
On Tue, 6 Jan 2009 14:57:41 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote: > On Mon, 5 Jan 2009 16:37:42 -0800 > Andrew Morton <akpm@linux-foundation.org> wrote: > > > On Mon, 5 Jan 2009 13:31:32 +0300 > > Cyrill Gorcunov <gorcunov@gmail.com> wrote: > > > > > __nr_to_section should check for array bound overflow. > > > We should better get NULL dereference then silently > > > pass some memory snippet out of bounds to a caller. > > > > > > > Are there actually any known problems here? > > > > IIRC, I never saw any problem. (But I may see in memory-hotplug development.) I digged mails and seems this patch is from this thread. = http://lkml.org/lkml/2009/1/4/61 = He seems to want to hunt boot time failure. (Finally, BIOS-update was necessary for original problem of this thread.) Cyrill, could you modify this WARN_ON() works works when __nr_to_section() is called directly by sparse.c and memhotplug.c ? Adding WARN_ON() in pfn_to_page() is overkill. Thanks, -Kame | ||||||||||||
| Last update: 2009-01-06 07:35 [from the cache] ©2003-2008 | |||||||||||||