linux-kernel - Re: [bisected] Re: drm, qxl: post 5.11 merge warning+explosion

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Date:   Thu, 17 Dec 2020 17:24:32 +0100
From:   Christian König <christian.koenig@....com>
To:     Mike Galbraith <efault@....de>, LKML <linux-kernel@...r.kernel.org>
Cc:     Dave Airlie <airlied@...hat.com>,
        virtualization <virtualization@...ts.linux-foundation.org>
Subject: Re: [bisected] Re: drm, qxl: post 5.11 merge warning+explosion

Hi Mike,

what exactly is the warning from qxl you are seeing?

Thanks,
Christian.

Am 17.12.20 um 17:21 schrieb Mike Galbraith:
> ee5d2a8e549e90325fcc31825269f89647cd6fac is the first bad commit
> commit ee5d2a8e549e90325fcc31825269f89647cd6fac
> Author: Christian König <christian.koenig@....com>
> Date:   Sat Oct 24 13:10:28 2020 +0200
>
>      drm/ttm: wire up the new pool as default one v2
>
>      Provide the necessary parameters by all drivers and use the new pool alloc
>      when no driver specific function is provided.
>
>      v2: fix the GEM VRAM helpers
>
>      Signed-off-by: Christian König <christian.koenig@....com>
>      Reviewed-by: Dave Airlie <airlied@...hat.com>
>      Reviewed-by: Madhav Chauhan <madhav.chauhan@....com>
>      Tested-by: Huang Rui <ray.huang@....com>
>      Link: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatchwork.freedesktop.org%2Fpatch%2F397081%2F%3Fseries%3D83051%26rev%3D1&amp;data=04%7C01%7Cchristian.koenig%40amd.com%7C5e5b079ebef74f3ef56b08d8a2a7c416%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637438189325014013%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=7dT4qkc4SEBLYDZwl5V4glm9ynvFHwAVdzn3y7eO7Kc%3D&amp;reserved=0
>
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c |  4 ++--
>   drivers/gpu/drm/drm_gem_vram_helper.c   |  4 ++--
>   drivers/gpu/drm/nouveau/nouveau_ttm.c   | 14 +++++++++-----
>   drivers/gpu/drm/qxl/qxl_ttm.c           |  5 ++---
>   drivers/gpu/drm/radeon/radeon_ttm.c     |  4 ++--
>   drivers/gpu/drm/ttm/ttm_bo.c            |  8 ++++++--
>   drivers/gpu/drm/ttm/ttm_memory.c        |  2 +-
>   drivers/gpu/drm/ttm/ttm_tt.c            |  5 ++---
>   drivers/gpu/drm/vmwgfx/vmwgfx_drv.c     |  5 +++--
>   include/drm/ttm/ttm_bo_driver.h         | 11 +++++++----
>   10 files changed, 36 insertions(+), 26 deletions(-)
>
> git bisect start 'drivers/gpu/drm/qxl'
> # good: [2c85ebc57b3e1817b6ce1a6b703928e113a90442] Linux 5.10
> git bisect good 2c85ebc57b3e1817b6ce1a6b703928e113a90442
> # bad: [accefff5b547a9a1d959c7e76ad539bf2480e78b] Merge tag 'arm-soc-omap-genpd-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> git bisect bad accefff5b547a9a1d959c7e76ad539bf2480e78b
> # bad: [d635a69dd4981cc51f90293f5f64268620ed1565] Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
> git bisect bad d635a69dd4981cc51f90293f5f64268620ed1565
> # bad: [0ca2ce81eb8ee30f3ba8ac7967fef9cfbb44dbdb] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
> git bisect bad 0ca2ce81eb8ee30f3ba8ac7967fef9cfbb44dbdb
> # bad: [f8aab60422c371425365d386dfd51e0c6c5b1041] drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs
> git bisect bad f8aab60422c371425365d386dfd51e0c6c5b1041
> # bad: [c0f98d2f8b076bf3e3183aa547395f919c943a14] Merge tag 'drm-misc-next-2020-11-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
> git bisect bad c0f98d2f8b076bf3e3183aa547395f919c943a14
> # good: [6a6e5988a2657cd0c91f6f1a3e7d194599248b6d] drm/ttm: replace last move_notify with delete_mem_notify
> git bisect good 6a6e5988a2657cd0c91f6f1a3e7d194599248b6d
> # good: [f566fdcd6cc49a9d5b5d782f56e3e7cb243f01b8] drm/i915: Force VT'd workarounds when running as a guest OS
> git bisect good f566fdcd6cc49a9d5b5d782f56e3e7cb243f01b8
> # good: [e76ab2cf21c38331155ea613cdf18582f011c30f] drm/i915: Remove per-platform IIR HPD masking
> git bisect good e76ab2cf21c38331155ea613cdf18582f011c30f
> # bad: [268af50f38b1f2199a2e85e38073d7a25c20190c] drm/panfrost: Support cache-coherent integrations
> git bisect bad 268af50f38b1f2199a2e85e38073d7a25c20190c
> # good: [e000650375b65ff77c5ee852b5086f58c741179e] fbdev/atafb: Remove unused extern variables
> git bisect good e000650375b65ff77c5ee852b5086f58c741179e
> # bad: [461619f5c3242aaee9ec3f0b7072719bd86ea207] drm/nouveau: switch to new allocator
> git bisect bad 461619f5c3242aaee9ec3f0b7072719bd86ea207
> # good: [d099fc8f540add80f725014fdd4f7f49f3c58911] drm/ttm: new TT backend allocation pool v3
> git bisect good d099fc8f540add80f725014fdd4f7f49f3c58911
> # bad: [e93b2da9799e5cb97760969f3e1f02a5bdac29fe] drm/amdgpu: switch to new allocator v2
> git bisect bad e93b2da9799e5cb97760969f3e1f02a5bdac29fe
> # bad: [ee5d2a8e549e90325fcc31825269f89647cd6fac] drm/ttm: wire up the new pool as default one v2
> git bisect bad ee5d2a8e549e90325fcc31825269f89647cd6fac
> # first bad commit: [ee5d2a8e549e90325fcc31825269f89647cd6fac] drm/ttm: wire up the new pool as default one v2
>