Linux kernel 5.7

[mrfelker]

Kernel 5.7 rc5 is working well so on Kubuntu with the Ubuntu Gnome just added as an alternate desktop

[mrfelker]

Upgrade to kernel .7.0-050700rc6-generic comopletely without incident. I am interested in whether the system freezing overnight when using Gnome desktop is improved.

[zika]

https://kernel.ubuntu.com/~kernel-ppa/mainline/
(994)drm-next:

  CC [M]  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.o
/home/kernel/COD/linux/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c: In function 'amdgpu_amdkfd_gpuvm_free_memory_of_gpu':
/home/kernel/COD/linux/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:1357:2: error: implicit declaration of function 'drm_gem_object_put_unlocked'; did you mean 'drm_gem_object_put_locked'? [-Werror=implicit-function-declaration]
 1357 |  drm_gem_object_put_unlocked(&mem->bo->tbo.base);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
      |  drm_gem_object_put_locked
cc1: some warnings being treated as errors
make[6]: *** [/home/kernel/COD/linux/scripts/Makefile.build:267: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.o] Error 1
make[5]: *** [/home/kernel/COD/linux/scripts/Makefile.build:488: drivers/gpu/drm/amd/amdgpu] Error 2
make[5]: *** Waiting for unfinished jobs....
  GEN     kernel/kheaders_data.tar.xz
make[4]: *** [/home/kernel/COD/linux/scripts/Makefile.build:488: drivers/gpu/drm] Error 2
make[3]: *** [/home/kernel/COD/linux/scripts/Makefile.build:488: drivers/gpu] Error 2
make[2]: *** [/home/kernel/COD/linux/Makefile:1729: drivers] Error 2
make[2]: *** Waiting for unfinished jobs....
  CC [M]  kernel/kheaders.o
make[2]: Leaving directory '/home/kernel/COD/linux/debian/build/build-generic'
make[1]: *** [Makefile:180: sub-make] Error 2
make[1]: Leaving directory '/home/kernel/COD/linux'
make: *** [debian/rules.d/2-binary-arch.mk:50: /home/kernel/COD/linux/debian/stamps/stamp-build-generic] Error 2

For few days it did not come even here...
(999)daily is OK.

[Doug S]

https://kernel.ubuntu.com/~kernel-ppa/mainline/
(994)drm-next:
For few days it did not come even here...
(999)daily is OK.

Related to this commit:

doug@s15:~/temp-k-git/linux$ git show 39b3128d7ffd
commit 39b3128d7ffd44e400e581e6f49e88cb42bef9a1
Author: Felix Kuehling <Felix.Kuehling@amd.com>
Date:   Tue May 5 14:02:43 2020 -0400

    drm/amdgpu: Use GEM obj reference for KFD BOs

    Releasing the AMDGPU BO ref directly leads to problems when BOs were
    exported as DMA bufs. Releasing the GEM reference makes sure that the
    AMDGPU/TTM BO is not freed too early.

    Also take a GEM reference when importing BOs from DMABufs to keep
    references to imported BOs balances properly.

    Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
    Tested-by: Alex Sierra <alex.sierra@amd.com>
    Acked-by: Christian König <christian.koenig@amd.com>
    Reviewed-by: Alex Sierra <alex.sierra@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 9dff792c9290..6a5b91d23fd9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -1343,7 +1343,7 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu(
        }

        /* Free the BO*/
-       amdgpu_bo_unref(&mem->bo);
+       drm_gem_object_put_unlocked(&mem->bo->tbo.base);
        mutex_destroy(&mem->lock);
        kfree(mem);

@@ -1688,7 +1688,8 @@ int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd,
                | KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE
                | KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE;

-       (*mem)->bo = amdgpu_bo_ref(bo);
+       drm_gem_object_get(&bo->tbo.base);
+       (*mem)->bo = bo;
        (*mem)->va = va;
        (*mem)->domain = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
                AMDGPU_GEM_DOMAIN_VRAM : AMDGPU_GEM_DOMAIN_GTT;

And I observe that commit being picked up by downstream maintainers.
I could not find if this was a fix for something else or something was done to fix what you observed in the 994 build, but I did observe some amdgpu related mode changes/deletions in my git pull. I am not knowledgeable enough with git go further, short of trying a compile right at commit 39b3128d7ffd (which I am not going to do, even though I am curious, I just don't have the time).

[corradoventu]

Last RC announced for kernel 5.7 http://lkml.iu.edu/hypermail/linux/k...5.3/00406.html