linux-kernel - Re: WARNING at drm_gem_object_handle_put

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Message-ID: <05b62107-902f-496a-aa0a-e9c3b38a7552@suse.de>
Date: Mon, 14 Jul 2025 09:08:03 +0200
From: Thomas Zimmermann <tzimmermann@...e.de>
To: Jacek Łuczak <difrost.kernel@...il.com>,
 LKML <linux-kernel@...r.kernel.org>, christian.koenig@....com,
 Mario Limonciello <mario.limonciello@....com>
Subject: Re: WARNING at drm_gem_object_handle_put_unlocked+0xaa/0xe0

Hi

Am 12.07.25 um 12:05 schrieb Jacek Łuczak:
> Hi,
>
>> While checking on this issue I've found[2] and applied the patch 
>> posted by Thomes which fixed the issue.
>>
> After a longer use I find this is causing some weird graphics behavior 
> notably an attempt to start Wayland session sometimes timeouts with no 
> errors in the logs but e.g. reboot fails with attached errors (CC 
> @Mario).
>
> If I'll find some time to bisect the original issue I'll report it back.

You might be seeing the same epoll error that Linus saw and that is 
mentioned in the -rc6 announcement.

Best regards
Thomas

>
> Regards,
> -jacek

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
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