On Thu, 2014-01-23 at 09:06 +0000, Matt Fleming wrote: > On Sat, 18 Jan, at 12:48:13PM, Borislav Petkov wrote: > > From: Borislav Petkov <bp@xxxxxxx> > > > > Hi all, > > > > this is the latest incarnation which should hopefully work just fine. It > > tpasses esting at least on all our boxes so we have *some* coverage. > > > > It took us a long time to debug the unmapping path and realize how > > exactly we're doing the PGD sharing between the kernel and the EFI page > > table. I've commented on this verbosely in 4/5 for future reference > > because this stuff is not trivial. > > > > We definitely should have this in mind when we do more changes on how we > > handle the EFI page table and what we do with it, maybe even decouple it > > completely from the kernel one. I dunno - it is all future stuff to pay > > attention to. > > > > Anyway, if anyone with an EFI box wants to give it a run, feel free to > > do so. > > > > As always, all comments and suggestions are appreciated. > > Thanks Borislav. I picked these up and applied them to my 'next' branch. > > You'll notice that I haven't stuck them in my 'urgent' branch, so these > won't be sent to Linus before v3.15 despite the fact that they're bug > fixes. I think Toshi's box is special enough that most people shouldn't > hit this issue, and since these patches involve rewriting the way we do > SetVirtualAddressMap() I'm happy for people to hammer on the stuff that > did make it into the merge window without this added complication. > > Having said that, if people think it's worth the effort I don't mind > setting up a new branch containing this series that can be sent to Linus > much sooner. Since this issue is quite serious on our systems (3.14 kernels won't boot up), I'd really appreciate if the fixes can be made into some 3.14-rc. It can hit on any EFI systems with large memory. Thanks, -Toshi -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
