From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6BCCD25FA29; Wed, 10 Sep 2025 11:01:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757502101; cv=none; b=Joavq/7F01k2PAeG7omGQ6jgYqkRXVZJ6YHOr4iGJiwgKNJLl1vitvRAriQbQldc+Pe+p/3Jnj6AekSu0MdyMLrxLsAbdkZGLOb86vQbzZWEwRHdlisLqwHniqBiAmXX5ShI/ha2l08l+HlCGXaQOCZ/zvTjWm0eIF8KzPGSZ6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757502101; c=relaxed/simple; bh=qRp4pA5nON73sZoZuwHZjsYpT6fTz3KV68ATUmBpd0A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=pxrhaaWwplIzaNAlfSmFn2tR1flYQ5gUPjr0wqTkjN9w5UEWUe/a2455XSYzT/tr1VVJqeZ46rn/CCN+NBwH37YmjiAB/7AxTGOgFxflS/lwL0h6FwN0L55YMR3t6C2tP9G12CNw07fK1GqfmoeH7rbpnxFzqj/jjYE3coYYG8Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=C5kWhs7u; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="C5kWhs7u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C1DD8C4CEF0; Wed, 10 Sep 2025 11:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757502101; bh=qRp4pA5nON73sZoZuwHZjsYpT6fTz3KV68ATUmBpd0A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=C5kWhs7uRbjrhU3OblOuu5C+TfXSxcOCdkT2WiL7/QOf10JWmfTDYDvKqDID/E1yy ObPvEzotdtt+kzCI07FWfjVc5bENBjAEYF47BTwcwUPdOLS51ONtOUPERTIQF5cJ4i UOrJcm13TF+HKb1Cag/puKy+j3v1y5kkMIhdcmtAs4K/oo/vxkFp1ZCbMD9PGxrET3 AJCQ91v492I5Z7Rtf+AScc9wSZgq3j0j2JzxY/UDZ1ZIUFdYG3eizBf/onQXnF/iuU lZveG9hX3odkpQV8Ky5yihZAhVkmeUjDAZF+nA1swi+rITQEHFFrGh2X6YmoiUUUR+ 77W9FN90hx9Ew== Date: Wed, 10 Sep 2025 07:01:39 -0400 From: Sasha Levin To: Brett A C Sheffield Cc: Javier Martinez Canillas , stable@vger.kernel.org, regressions@lists.linux.dev, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Simona Vetter , Helge Deller , Thomas Zimmermann , Lee Jones , Murad Masimov , Yongzhen Zhang , Greg Kroah-Hartman Subject: Re: [PATCH 1/1] Revert "fbdev: Disable sysfb device registration when removing conflicting FBs" Message-ID: References: <20250910095124.6213-3-bacs@librecast.net> <20250910095124.6213-5-bacs@librecast.net> <87frcuegb7.fsf@minerva.mail-host-address-is-not-set> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: On Wed, Sep 10, 2025 at 12:52:41PM +0200, Brett A C Sheffield wrote: >On 2025-09-10 12:46, Javier Martinez Canillas wrote: >> Brett A C Sheffield writes: >> >> Hello Brett, >> >> > This reverts commit 13d28e0c79cbf69fc6f145767af66905586c1249. >> > >> > Commit ee7a69aa38d8 ("fbdev: Disable sysfb device registration when >> > removing conflicting FBs") was backported to 5.15.y LTS. This causes a >> > regression where all virtual consoles stop responding during boot at: >> > >> > "Populating /dev with existing devices through uevents ..." >> > >> > Reverting the commit fixes the regression. >> > >> > Signed-off-by: Brett A C Sheffield >> > --- >> >> In the other email you said: >> >> > Newer stable kernels with this >> > patch (6.1.y, 6.6.y, 6.12,y, 6.15.y, 6.16.y) and mainline are unaffected. >> >> But are you proposing to revert the mentioned commit in mainline too >> or just in the 5.15.y LTS tree ? > >Only the 5.15.y tree. Sorry - that could have been clearer. There's no >regression anywhere else. Mainline and other stable kernels are all ok. Thanks for investigating this! I'll queue it up for 5.15. -- Thanks, Sasha