On Thu, Jun 7, 2012 at 12:03 AM, Greg KH <[email protected]> wrote: > 3.4-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Andrea Arcangeli <[email protected]> > > commit 26c191788f18129af0eb32a358cdaea0c7479626 upstream. > > When holding the mmap_sem for reading, pmd_offset_map_lock should only > run on a pmd_t that has been read atomically from the pmdp pointer, > otherwise we may read only half of it leading to this crash.
This one is important, but it can break Xen apparently: http://permalink.gmane.org/gmane.comp.emulators.xen.devel/132522 https://bugzilla.redhat.com/show_bug.cgi?id=829016 Not sure if you want to hold off on it or see if Andrea comes up with a follow up fix? josh -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
