On Sat, 23 Jul 2016 16:58:16 +0200, Nicolai Stange said:
> valdis.kletni...@vt.edu writes:
> The reason the patch didn't work for Valdis might be that there is
> another issue in next-20150722 with the same symptoms (provided you
> don't watch the serial console). Valdis, did you apply the provide
valdis.kletni...@vt.edu writes:
> On Thu, 21 Jul 2016 22:34:33 -0700, Andy Lutomirski said:
>
>> How much memory do you have and what's your config? My code is
>> obviously buggy, but I'm wondering why neither I nor the 0day bot caught
>> this.
>
> Probably because your devel box and the 0day bot
On Thu, 21 Jul 2016 22:34:33 -0700, Andy Lutomirski said:
> How much memory do you have and what's your config? My code is
> obviously buggy, but I'm wondering why neither I nor the 0day bot caught
> this.
Probably because your devel box and the 0day bot both have 4-level page
tables and the dua
* Andy Lutomirski wrote:
> This garbage (as evidenced by my bug and my failed attempt to fix it)
> only works if you never have a low-level page table that isn't linked
> into a higher-level page table, and it mostly requires you to do
> everything exactly the way it was originally done so all t
On Fri, Jul 22, 2016 at 11:21 AM, Andy Lutomirski wrote:
> On Fri, Jul 22, 2016 at 3:21 AM, Ingo Molnar wrote:
>>
>> * Andy Lutomirski wrote:
>>
>>> On 07/21/2016 09:43 PM, valdis.kletni...@vt.edu wrote:
>>> >On Mon, 11 Jul 2016 13:53:36 -0700, Andy Lutomirski said:
>>> >>This avoids pointless r
On Fri, Jul 22, 2016 at 3:21 AM, Ingo Molnar wrote:
>
> * Andy Lutomirski wrote:
>
>> On 07/21/2016 09:43 PM, valdis.kletni...@vt.edu wrote:
>> >On Mon, 11 Jul 2016 13:53:36 -0700, Andy Lutomirski said:
>> >>This avoids pointless races in which another CPU or task might see a
>> >>partially popul
* Andy Lutomirski wrote:
> On 07/21/2016 09:43 PM, valdis.kletni...@vt.edu wrote:
> >On Mon, 11 Jul 2016 13:53:36 -0700, Andy Lutomirski said:
> >>This avoids pointless races in which another CPU or task might see a
> >>partially populated global pgd entry. These races should normally
> >>be ha
On 07/21/2016 09:43 PM, valdis.kletni...@vt.edu wrote:
On Mon, 11 Jul 2016 13:53:36 -0700, Andy Lutomirski said:
This avoids pointless races in which another CPU or task might see a
partially populated global pgd entry. These races should normally
be harmless, but, if another CPU propagates the
On Mon, 11 Jul 2016 13:53:36 -0700, Andy Lutomirski said:
> This avoids pointless races in which another CPU or task might see a
> partially populated global pgd entry. These races should normally
> be harmless, but, if another CPU propagates the entry via
> vmalloc_fault and then populate_pgd fai
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