From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2820C33CA1 for ; Mon, 20 Jan 2020 18:11:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BDFCD2253D for ; Mon, 20 Jan 2020 18:11:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="J7JuvkDQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728668AbgATSLy (ORCPT ); Mon, 20 Jan 2020 13:11:54 -0500 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:58057 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728093AbgATSLx (ORCPT ); Mon, 20 Jan 2020 13:11:53 -0500 Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id 0A4A521D25; Mon, 20 Jan 2020 13:11:52 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute7.internal (MEProxy); Mon, 20 Jan 2020 13:11:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=3eLX0e f+TjguMEDNQ4OqQg1MbtOe1MZnC7yyN6gjokc=; b=J7JuvkDQay6+NBdblOPewo RfJhDS3JUf0TWtuMcX/K5jGwDS+DYQXZbSyfL7aLx3XJVHJc86kle0a0PQoWy0zb uRrXXyN+/XIX2kMU68B40hIjoq0pIjb3qUD6wBPFjfPgyYbgk+24BnVniW4cXVwk cM5+3hKCLbGB2R0Q/szbK95h6NXXBihjkAlaF6sDuSQHFkW7fIVcCyGS9wDW/ArG M80xbcpEbNLO81Wla/bfKr59DUUfKx36SudmTR/bX4Awzg9zi4losnWMUlxfgobV 8v/9sSkmkqu4hGGegfoz2YYGFPSViNbJZGWRVI7OdYeNvCMBx34gHEHGIMnBT/LQ == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedugedrudeigdegiecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpeffhffvuffkfhggtggujgesghdtreertddtjeenucfhrhhomhepofgrrhgvkhcu ofgrrhgtiiihkhhofihskhhiqdfikphrvggtkhhiuceomhgrrhhmrghrvghksehinhhvih hsihgslhgvthhhihhnghhslhgrsgdrtghomheqnecuffhomhgrihhnpehlihhnuhigfhho uhhnuggrthhiohhnrdhorhhgnecukfhppeeluddrieehrdefgedrfeefnecuvehluhhsth gvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepmhgrrhhmrghrvghksehi nhhvihhsihgslhgvthhhihhnghhslhgrsgdrtghomh X-ME-Proxy: Received: from mail-itl (ip5b412221.dynamic.kabel-deutschland.de [91.65.34.33]) by mail.messagingengine.com (Postfix) with ESMTPA id A7280306099E; Mon, 20 Jan 2020 13:11:49 -0500 (EST) Date: Mon, 20 Jan 2020 19:11:46 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: Bartlomiej Zolnierkiewicz Cc: Gerd Hoffmann , dri-devel@lists.freedesktop.org, "open list:FRAMEBUFFER LAYER" , open list Subject: Re: [PATCH] fbdev: wait for references go away Message-ID: <20200120181146.GL1314@mail-itl> References: <20200120100014.23488-1-kraxel@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="p0HNO2YbtFeVXwJ3" Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --p0HNO2YbtFeVXwJ3 Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] fbdev: wait for references go away On Mon, Jan 20, 2020 at 06:51:17PM +0100, Bartlomiej Zolnierkiewicz wrote: > I guess that a problem is happening during DRM driver load while fbdev > driver is loaded? I assume do_unregister_framebuffer() is called inside > do_remove_conflicting_framebuffers()? Yes, exactly. More details here: https://lists.linuxfoundation.org/pipermail/virtualization/2020-January/045= 026.html > At first glance it seems to be an user-space issue as it should not be > holding references on /dev/fb0 while DRM driver is being loaded. How plymouth would know when exactly it needs to release /dev/fb0? --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? --p0HNO2YbtFeVXwJ3 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAl4l7WIACgkQ24/THMrX 1ywYwQgAimDeFDny3c/ar866L78Bc5TRyJynEGGbFlnb9BR/gCc9gpS1tNCyemPC keqTV3PxXHMFaTPnrJi2ebuUP+Lmj/YOK+tCXB8+ipwMs3Z1HZv1DR7D4s3gDDzk To8b4e0RnxpCdQJ4xpOoWL+XcueHy+RB8FtEXqXyVJTW/bJWGYGnuyQVSubBKQxL TyEp6ASDocGLFX0QsSrdVEkuVF/PMdfbyu6Th9MwQMtMmd0s2BuepAfJhDP3js1f JlMnL3N1wscxFOWn1TSAGywTMbAjwRctGwrCcULMDME2STVryuH0VNWpapKIMQpj PUlDFH5CMVOKGjXo2OkywONz4gP7kQ== =2hqv -----END PGP SIGNATURE----- --p0HNO2YbtFeVXwJ3--