From: "Christian König" <christian.koenig@amd.com>
To: Gerd Hoffmann <kraxel@redhat.com>, dri-devel@lists.freedesktop.org
Cc: Huang Rui <ray.huang@amd.com>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 01/10] [hack] silence ttm fini WARNING
Date: Thu, 4 Feb 2021 15:58:33 +0100 [thread overview]
Message-ID: <1bb54d72-a9b5-0d9d-6f08-b8f9f4abe421@amd.com> (raw)
In-Reply-To: <20210204145712.1531203-2-kraxel@redhat.com>
?
What's the background here?
Christian.
Am 04.02.21 um 15:57 schrieb Gerd Hoffmann:
> kobject: '(null)' ((____ptrval____)): is not initialized, yet kobject_put() is being called.
> WARNING: CPU: 0 PID: 209 at lib/kobject.c:750 kobject_put+0x3a/0x60
> [ ... ]
> Call Trace:
> ttm_device_fini+0x133/0x1b0 [ttm]
> qxl_ttm_fini+0x2f/0x40 [qxl]
> ---
> drivers/gpu/drm/ttm/ttm_device.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
> index ac0903c9e60a..b638cbb0bd45 100644
> --- a/drivers/gpu/drm/ttm/ttm_device.c
> +++ b/drivers/gpu/drm/ttm/ttm_device.c
> @@ -50,7 +50,7 @@ static void ttm_global_release(void)
> goto out;
>
> kobject_del(&glob->kobj);
> - kobject_put(&glob->kobj);
> +// kobject_put(&glob->kobj);
> ttm_mem_global_release(&ttm_mem_glob);
> __free_page(glob->dummy_read_page);
> memset(glob, 0, sizeof(*glob));
next prev parent reply other threads:[~2021-02-04 15:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210204145712.1531203-1-kraxel@redhat.com>
2021-02-04 14:57 ` Gerd Hoffmann
2021-02-04 14:58 ` Christian König [this message]
2021-02-05 7:39 ` Gerd Hoffmann
2021-02-04 14:57 ` [PATCH v6 02/10] Revert "drm/qxl: do not run release if qxl failed to init" Gerd Hoffmann
2021-02-04 18:34 ` Thomas Zimmermann
2021-02-04 18:52 ` Tong Zhang
2021-02-04 19:06 ` Thomas Zimmermann
2021-02-04 20:21 ` Tong Zhang
2021-02-04 14:57 ` [PATCH v6 03/10] drm/qxl: use drmm_mode_config_init Gerd Hoffmann
2021-02-04 14:57 ` [PATCH v6 04/10] drm/qxl: unpin release objects Gerd Hoffmann
2021-02-04 14:57 ` [PATCH v6 05/10] drm/qxl: release shadow on shutdown Gerd Hoffmann
2021-02-04 18:17 ` Thomas Zimmermann
2021-02-04 14:57 ` [PATCH v6 06/10] drm/qxl: properly pin/unpin shadow Gerd Hoffmann
2021-02-04 18:18 ` Thomas Zimmermann
2021-02-04 14:57 ` [PATCH v6 07/10] drm/qxl: handle shadow in primary destroy Gerd Hoffmann
2021-02-04 14:57 ` [PATCH v6 08/10] drm/qxl: properly free qxl releases Gerd Hoffmann
2021-02-04 14:57 ` [PATCH v6 09/10] drm/qxl: simplify qxl_fence_wait Gerd Hoffmann
2021-02-04 14:57 ` [PATCH v6 10/10] drm/qxl: allocate dumb buffers in ram Gerd Hoffmann
2021-02-04 18:22 ` Thomas Zimmermann
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