[ add linux-mm ]
On Thu, Feb 21, 2019 at 3:47 PM Jeff Moyer wrote:
>
> Hi, Dan,
>
> Thanks for the comprehensive write-up. Comments below.
>
> Dan Williams writes:
>
> > In the beginning the pmem driver simply passed the persistent memory
> > resource range to memremap and was done. With the
On Thu, Feb 21, 2019 at 02:58:27PM -0800, Larry Bassel wrote:
> [adding linux-mm]
>
> On 21 Feb 19 15:41, Jerome Glisse wrote:
> > On Wed, Feb 20, 2019 at 03:06:22PM -0800, Larry Bassel wrote:
> > > I'm working on sharing page tables in the DAX/XFS/PMEM/PMD case.
> > >
> > > If multiple
On 2/21/19 2:58 PM, Larry Bassel wrote:
> AFAIK there is no hardware benefit from sharing the page table
> directory within different page table. So the only benefit is the
> amount of memory we save.
The hardware benefit from schemes like this is that the CPU caches are
better utilized. If two
Hi, Dan,
Thanks for the comprehensive write-up. Comments below.
Dan Williams writes:
> In the beginning the pmem driver simply passed the persistent memory
> resource range to memremap and was done. With the introduction of
> devm_memremap_pages() and vmem_altmap the implementation needed to
[adding linux-mm]
On 21 Feb 19 15:41, Jerome Glisse wrote:
> On Wed, Feb 20, 2019 at 03:06:22PM -0800, Larry Bassel wrote:
> > I'm working on sharing page tables in the DAX/XFS/PMEM/PMD case.
> >
> > If multiple processes would use the identical page of PMDs corresponding
> > to a 1 GiB address
On Wed, Feb 20, 2019 at 03:06:22PM -0800, Larry Bassel wrote:
> I'm working on sharing page tables in the DAX/XFS/PMEM/PMD case.
>
> If multiple processes would use the identical page of PMDs corresponding
> to a 1 GiB address range of DAX/XFS/PMEM/PMDs, presumably one can instead
> of populating
> From: qi.f...@fujitsu.com
> Sent: Thursday, February 21, 2019 12:40 AM
> > ...
> > + /*
> > +* Hyper-V Virtual NVDIMM doesn't use ND_CMD_SMART to get the
> > health info. Instead, it uses ND_CMD_CALL, so the checking here can't
> > +* apply, and it doesn't support threshold alarms --
On Thu, Feb 21, 2019 at 11:11:27AM -0500, Jeff Moyer wrote:
> Anyway, given that the correctable errors collector can be turned off in
> the kernel config,
Also, on the cmdline, for whatever reason:
ras=cec_disable
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting
Dan Williams writes:
> On Wed, Feb 20, 2019 at 11:26 AM Jeff Moyer wrote:
>>
>> Borislav Petkov writes:
>>
>> > Drop stable@
>> >
>> > On Wed, Feb 20, 2019 at 01:59:15PM -0500, Jeff Moyer wrote:
>> >> Sorry for necroposting. I thought the point of the CEC was to make sure
>> >> that the other
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
struct boo entry[];
};
instance =
[+CC dvyukov ]
On 20/02/2019 18:21, Johannes Thumshirn wrote:
> On 20/02/2019 17:15, Dan Williams wrote:> I wouldn't be opposed to
> syzkaller fuzzing the nvdimm-ioctl path.
> As a heads up, I've started adding the ioctl() definitions to syzcaller.
> Just so we don't duplicate any efforts.
So
> -Original Message-
> From: Dexuan Cui [mailto:de...@microsoft.com]
> Sent: Wednesday, February 20, 2019 2:12 PM
> To: Dave Jiang ; Vishal Verma
> ; Dan Williams ;
> linux-nvdimm@lists.01.org; Michael Kelley ; Qi,
> Fuli/斉 福利 ; Johannes Thumshirn
> Subject: [ndctl PATCH v2 4/4] ndctl,
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