Hi Mikey,
On 09/25/2018 02:24 AM, Michael Neuling wrote:
> On Mon, 2018-09-24 at 11:32 -0300, Breno Leitao wrote:
>> Hi Mikey,
>>
>> On 09/24/2018 04:27 AM, Michael Neuling wrote:
>>> When we treclaim we store the userspace checkpointed r13 to a scratch
>>> SPR and then later save the scratch SPR
On Mon, 2018-09-24 at 11:32 -0300, Breno Leitao wrote:
> Hi Mikey,
>
> On 09/24/2018 04:27 AM, Michael Neuling wrote:
> > When we treclaim we store the userspace checkpointed r13 to a scratch
> > SPR and then later save the scratch SPR to the user thread struct.
> >
> > Unfortunately, this
Hi Mikey,
On 09/24/2018 04:27 AM, Michael Neuling wrote:
> When we treclaim we store the userspace checkpointed r13 to a scratch
> SPR and then later save the scratch SPR to the user thread struct.
>
> Unfortunately, this doesn't work as accessing the user thread struct
> can take an SLB fault
When we treclaim we store the userspace checkpointed r13 to a scratch
SPR and then later save the scratch SPR to the user thread struct.
Unfortunately, this doesn't work as accessing the user thread struct
can take an SLB fault and the SLB fault handler will write the same
scratch SPRG that now
