Re: [PATCH] drm/pagemap: Drop ratelimiting from dev_unhold_work debug trace

["Thomas Hellström" <thomas.hellstrom@linux.intel.com>]

On Mon, 2026-09-21 at 11:56 +0530, Varun Gupta wrote:
> Reference-drop trace in drm_pagemap_dev_unhold_work() was changed
> from drm_dbg() to drm_dbg_ratelimited() to reduce serial console
> bottlenecks.
> However, when the ratelimit kicks in, the kernel's ratelimiting
> subsystem
> logs a "callbacks suppressed" notification at the KERN_WARNING level.
> Revert the trace macro back to drm_dbg()
> 
> Fixes: b66b036c959f ("drm/pagemap: Prevent CPU stalls during
> unbounded pagemap teardown")
> Signed-off-by: Varun Gupta <varun.gupta@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

> ---
>  drivers/gpu/drm/drm_pagemap.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_pagemap.c
> b/drivers/gpu/drm/drm_pagemap.c
> index 0867bfbde5c5..ba97daedcd49 100644
> --- a/drivers/gpu/drm/drm_pagemap.c
> +++ b/drivers/gpu/drm/drm_pagemap.c
> @@ -1009,7 +1009,7 @@ static void drm_pagemap_dev_unhold_work(struct
> work_struct *work)
>  		struct drm_device *drm = dev_hold->drm;
>  		struct module *module = drm->driver->fops->owner;
>  
> -		drm_dbg_ratelimited(drm, "Releasing reference on
> provider device and module.\n");
> +		drm_dbg(drm, "Releasing reference on provider device
> and module.\n");
>  		drm_dev_put(drm);
>  		module_put(module);
>  		kfree(dev_hold);