Messages in this thread | | | Date | Fri, 24 Aug 2018 14:19:07 -0700 | From | Guenter Roeck <> | Subject | Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" |
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+Andi Kleen <ak@linux.intel.com>
On Fri, Aug 24, 2018 at 01:04:09PM -0700, Roland Dreier wrote: > > Ok, so what patch should be reverted? I'm seeing other reports of > > problems all around this same area, but I can't figure out exactly what > > to do. > > Are any of those reports public? If so can you point me at them, I'm > curious if the symptoms match up. > > I don't think we want to revert anything. I think you should pull in > edc3b9129cec and at least the first three patches that Ben listed: > > 21cdb6b56843 x86/mm: Page align the '_end' symbol to avoid pfn conversion bugs > b61a76f8850d x86/efi: Map RAM into the identity page table for mixed mode > 753b11ef8e92 x86/efi: Setup separate EFI page tables in kexec paths > > the first patch takes a bit of massaging (mostly because some of it is > already touched by 02ff2769edbc, which keeps the changes from > edc3b9129cec, and so we can drop a good bit when applying). The other > three apply cleanly. > > I'm currently testing that and can send you the state of my tree in a bit. > > - R.
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