Rebase to https://github.com/jgunthorpe/linux.git hmm branch, need some
changes because of interface hmm_range_register change. Then run a quick
amdgpu_test. Test is finished, result is ok. But there is below kernel
BUG message, seems hmm_free_rcu calls down_write.
[ 1171.919921] BUG:
On 2019-08-15 8:54 p.m., Jason Gunthorpe wrote:
> On Thu, Aug 15, 2019 at 08:52:56PM +0000, Yang, Philip wrote:
>> hmm_range_fault may return NULL pages because some of pfns are equal to
>> HMM_PFN_NONE. This happens randomly under memory pressure. The reason is
>> for swap
hmm_range_fault may return NULL pages because some of pfns are equal to
HMM_PFN_NONE. This happens randomly under memory pressure. The reason is
for swapped out page pte path, hmm_vma_handle_pte doesn't update fault
variable from cpu_flags, so it failed to call hmm_vam_do_fault to swap
the page
On 2019-11-01 1:42 p.m., Jason Gunthorpe wrote:
> On Fri, Nov 01, 2019 at 03:59:26PM +0000, Yang, Philip wrote:
>>> This test for range_blockable should be before mutex_lock, I can move
>>> it up
>>>
>> yes, thanks.
>
> Okay, I wrote it like this:
&
Sorry, resend patch, the one in previous email missed couple of lines
duo to copy/paste.
On 2019-11-01 3:45 p.m., Yang, Philip wrote:
>
>
> On 2019-11-01 1:42 p.m., Jason Gunthorpe wrote:
>> On Fri, Nov 01, 2019 at 03:59:26PM +0000, Yang, Philip wrote:
>>>> This test
Hi Jason,
I did quick test after merging amd-staging-drm-next with the
mmu_notifier branch, which includes this set changes. The test result
has different failures, app stuck intermittently, GUI no display etc. I
am understanding the changes and will try to figure out the cause.
Regards,
On 2019-10-17 4:54 a.m., Christian König wrote:
> Am 16.10.19 um 18:04 schrieb Jason Gunthorpe:
>> On Wed, Oct 16, 2019 at 10:58:02AM +0200, Christian König wrote:
>>> Am 15.10.19 um 20:12 schrieb Jason Gunthorpe:
From: Jason Gunthorpe
8 of the mmu_notifier using drivers
On 2019-11-01 11:12 a.m., Jason Gunthorpe wrote:
> On Fri, Nov 01, 2019 at 02:44:51PM +0000, Yang, Philip wrote:
>>
>>
>> On 2019-10-29 3:25 p.m., Jason Gunthorpe wrote:
>>> On Tue, Oct 29, 2019 at 07:22:37PM +, Yang, Philip wrote:
>>>> Hi Jason,
&g
On 2019-10-29 3:25 p.m., Jason Gunthorpe wrote:
> On Tue, Oct 29, 2019 at 07:22:37PM +0000, Yang, Philip wrote:
>> Hi Jason,
>>
>> I did quick test after merging amd-staging-drm-next with the
>> mmu_notifier branch, which includes this set changes. The test result
>
