We've noticed that some combinations of grub and old linux kernels
end up interpreting the UEFI memory map EfiPersistentMemory type 14
(formerly a reserved value) as regular memory in the linux e820
table, causing silent data corruption on the NVDIMMs. That occurs
even though grub prints this
On Wed, Nov 25, 2015 at 2:52 AM, Elliott, Robert (Persistent Memory)
wrote:
> We've noticed that some combinations of grub and old linux kernels
>
> end up interpreting the UEFI memory map EfiPersistentMemory type 14
>
> (formerly a reserved value) as regular memory in the linux e820
>
> table, ca
It may operate the same, but there may be persistent data in there that the OS
wants to preserve across reboots.
—S
On Nov 25, 2015, at 6:08 AM, Andrei Borzenkov wrote:
> On Wed, Nov 25, 2015 at 2:52 AM, Elliott, Robert (Persistent Memory)
> wrote:
>> We've noticed that some combinations o
> -Original Message-
> From: Linux-nvdimm [mailto:linux-nvdimm-boun...@lists.01.org] On Behalf Of
> Andrei Borzenkov
> Sent: Wednesday, November 25, 2015 8:08 AM
> To: The development of GNU GRUB
> Cc: linux-nvd...@lists.01.org
> Subject: Re: grub causing NVDIMMs to be treated as normal m
On Wed, Nov 25, 2015 at 6:08 AM, Andrei Borzenkov wrote:
> On Wed, Nov 25, 2015 at 2:52 AM, Elliott, Robert (Persistent Memory)
> wrote:
>> We've noticed that some combinations of grub and old linux kernels
>>
>> end up interpreting the UEFI memory map EfiPersistentMemory type 14
>>
>> (formerly
25.11.2015 02:52, Elliott, Robert (Persistent Memory) пишет:
> We've noticed that some combinations of grub and old linux kernels
>
> end up interpreting the UEFI memory map EfiPersistentMemory type 14
>
> (formerly a reserved value) as regular memory in the linux e820
>
> table, causing silent
> -Original Message-
> From: Linux-nvdimm [mailto:linux-nvdimm-boun...@lists.01.org] On
> Behalf Of Andrei Borzenkov
> Sent: Wednesday, November 25, 2015 12:37 PM
> To: The development of GNU GRUB ;
> dan.j.willi...@intel.com; linux-nvd...@lists.01.org
> Subject: Re: grub causing NVDIMMs
26.11.2015 03:12, Elliott, Robert (Persistent Memory) пишет:
>
>
>> -Original Message-
>> From: Linux-nvdimm [mailto:linux-nvdimm-boun...@lists.01.org] On
>> Behalf Of Andrei Borzenkov
>> Sent: Wednesday, November 25, 2015 12:37 PM
>> To: The development of GNU GRUB ;
>> dan.j.willi...@in
> -Original Message-
> From: Andrei Borzenkov [mailto:arvidj...@gmail.com]
...
> From the build directory
>
> pkgdatadir=$PWD ./grub-install --bootloader-id testgrub -d grub-core
>
> This should install grub in \EFI\testgrub on ESP and add EFI menu for
> it. You can add --no-nvram to sk
