On Thu, Jun 07, 2012 at 09:42:55AM -0400, Josh Boyer wrote: > 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?
Ok, for now, I'll drop it. When Andrea gets this fixed up, can someone let me know so I can apply this one again, and the fixup? thanks, greg k-h -- 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
