linux-kernel - Re: [PATCH] Revert "fbdev: Remove conflicting devices on PCI bus"

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Date:   Sat, 4 Feb 2023 14:36:19 +0100
From:   Helge Deller <deller@....de>
To:     Thomas Zimmermann <tzimmermann@...e.de>,
        Javier Martinez Canillas <javierm@...hat.com>,
        dri-devel@...ts.freedesktop.org
Cc:     Zeno Davatz <zdavatz@...il.com>, linux-fbdev@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Lukas Wunner <lukas@...ner.de>
Subject: Re: [PATCH] Revert "fbdev: Remove conflicting devices on PCI bus"

On 2/4/23 09:50, Lukas Wunner wrote:
> On Fri, Feb 03, 2023 at 05:09:09PM -0600, Bjorn Helgaas wrote:
>> From: Bjorn Helgaas <bhelgaas@...gle.com>
>>
>> This reverts commit 145eed48de278007f646b908fd70ac59d24ed81a.
>>
>> Zeno Davatz reported that 145eed48de27 ("fbdev: Remove conflicting devices
>> on PCI bus") caused a console hang.  The machine was actually still usable
>> via ssh, etc., but there was no activity on the console.
>>
>> Reverting 145eed48de27 for the nvidiafb on that system fixed the problem.
>>
>> Revert 145eed48de27 ("fbdev: Remove conflicting devices on PCI bus") since
>> we don't know what caused the problem.
>>
>> Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=216859
>
> Shouldn't that rather be:
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216859
> Fixes: 145eed48de27 ("fbdev: Remove conflicting devices on PCI bus")
> Cc: stable@...r.kernel.org # v6.1+
>
> ?

The original patch is related to drm, and came in through the drm-misc
tree, so please drm folks, take such revert through the drm-misc
tree (if the patch is ok) as well.

Thanks,
Helge


>> Reported-by: Zeno Davatz <zdavatz@...il.com>
>> Tested-by: Zeno Davatz <zdavatz@...il.com>
>> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
>> Cc: Helge Deller <deller@....de>
>> Cc: Thomas Zimmermann <tzimmermann@...e.de>
>> Cc: Javier Martinez Canillas <javierm@...hat.com>
>> Cc: linux-fbdev@...r.kernel.org
>> Cc: dri-devel@...ts.freedesktop.org
>> Cc: linux-kernel@...r.kernel.org
>> ---