From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F60A443C1C; Fri, 11 Sep 2026 11:06:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789124766; cv=none; b=MeWlHfBHjdCJhyXR8fp9np90oeq+V+9appPK/1EqEFbfmRMeJIschV47PIkhvFjgL+9bUBW4roLv/zNExa2GzLgJOXprbzF7qrQK546+6BmNykQOxNPWu2M0hO98NvMTgzr/+NzCizSGLi+vk96IvcYp74Y+Q8XpEYRM149vkJI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789124766; c=relaxed/simple; bh=JvrZmcfy2bFw4IXQVkv3bqKdNxJfP8Z2DTQ1f80pfug=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=J9JP67F7T63TlUXZcaJjtn40d0jZzRoqVAAab0IvHBPmH9H4UdeXRTbSi6cZaMIGADUou7Ctd0YKh40Ae8JGbddL0AGQrgEPwJjD2pNv/FqAZKrcWDpavyEgVFK2Z7BXzlBSvYWpVUYq4CB5c7YZPxHsr+TDlZvkXTw/clB2rvs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=mwIigjyH; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=b+7SUHz3; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=M6mKBOHb; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=Bkf9+hFx; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="mwIigjyH"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="b+7SUHz3"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="M6mKBOHb"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="Bkf9+hFx" Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id D57C32196A; Fri, 11 Sep 2026 11:05:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1789124755; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=mCvWKSyOXghSRjrUIO25WhTluktNhI1ZIzrUisSCzog=; b=mwIigjyH85mOyKyDVXiVISSPm5WD3X0MP0365zfajWOkcWSuPmB2ARy/C5YHIzZl3SzDbc mexaobbpaHz9iWGcTvThfd3zMOtaWRmJiSjzZdg8xpZbcyM68ZMswW5SZPVvyxE5Mk7Slc /YYukJn/1TLBc8A1dWlsFiL2rvGZo4E= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1789124755; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=mCvWKSyOXghSRjrUIO25WhTluktNhI1ZIzrUisSCzog=; b=b+7SUHz3bESEaqJoCQKVGmpl3KrUrunJsFD9TELjfIDfQGfJXAJcfCB1Y/yJszE2SdjUyI hA5MPiO3ytWkRLDQ== Authentication-Results: smtp-out1.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1789124750; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=mCvWKSyOXghSRjrUIO25WhTluktNhI1ZIzrUisSCzog=; b=M6mKBOHbiTWHmrq4OaTeygTN+927bG8HXBCzz3Y4jYZpN6W2TIiMwt5mhZdYJylNuC/eiN 276E04tyvopmopDYC/DjhTeHmHxTFJuP6nRvia45UtqLQRXbvqIOWCXqMt6H3llZgBfxVy F5cdouDM8VEETMkpv1vrbWcWH10Fe/o= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1789124750; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=mCvWKSyOXghSRjrUIO25WhTluktNhI1ZIzrUisSCzog=; b=Bkf9+hFx/ERl6em/gPGKeoPFenHrChRVNOZRCzaiyvdKpzPFysgsyvTYq0CeN+eOGKeIpz kWOLNVOPOZL3xYAw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 7C59E132D3; Fri, 11 Sep 2026 11:05:47 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id Qc6PFovgo2rzKAAAD6G6ig (envelope-from ); Fri, 11 Sep 2026 11:05:47 +0000 Message-ID: Date: Fri, 11 Sep 2026 13:05:46 +0200 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 18/39] fbdev: defio: assert FBINFO_VIRTFB, drop VM_IO, add VM_MIXEDMAP To: "Lorenzo Stoakes (ARM)" , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , David Hildenbrand , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonathan Corbet , Greg Kroah-Hartman , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Paul Moore , Stephen Smalley , Jaroslav Kysela , Takashi Iwai , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Kiryl Shutsemau , Doug Gilbert , "James E.J. Bottomley" , "Martin K. Petersen" , Jaya Kumar , Simona Vetter , Helge Deller , Sebastian Reichel , John Hubbard , Peter Xu , Masami Hiramatsu , Oleg Nesterov , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Rik van Riel , Harry Yoo , Juri Lelli , Vincent Guittot , Maarten Lankhorst , Maxime Ripard , David Airlie , Will Deacon , "Aneesh Kumar K.V" , Nick Piggin , Arnd Bergmann , Muchun Song , Oscar Salvador , "Matthew Wilcox (Oracle)" , Jan Kara , Marc Zyngier , Oliver Upton , Catalin Marinas , Madhavan Srinivasan , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , "David S. Miller" , Andreas Larsson , Alexander Viro , Christian Brauner , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Youngjun Park , Johannes Weiner , Qi Zheng , Shakeel Butt , Axel Rasmussen , Yuanchu Xie , Wei Xu , Xu Xin , Chengming Zhou , Michal Hocko , Miklos Szeredi Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-usb@vger.kernel.org, linux-rdma@vger.kernel.org, selinux@vger.kernel.org, linux-sound@vger.kernel.org, bpf@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-trace-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, fuse-devel@lists.linux.dev References: <20260908-b4-mmap-prepare-vma-flag-sanify-v1-0-dacf19cce22b@kernel.org> <20260908-b4-mmap-prepare-vma-flag-sanify-v1-18-dacf19cce22b@kernel.org> Content-Language: en-US From: Thomas Zimmermann Autocrypt: addr=tzimmermann@suse.de; keydata= xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdg XH47fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0 BeB5BbqP5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4Yc hdHm3bkPjz9EErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB 9GluwvIhSezPgnEmimZDkGnZRRSFiGP8yjqTjjWuf0bSj5rUnTGiyLyRZRNGcXmu6hjlABEB AAHNJ1Rob21hcyBaaW1tZXJtYW5uIDx0emltbWVybWFubkBzdXNlLmRlPsLAjgQTAQgAOAIb AwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftODH AAoJEGgNwR1TC3ojx1wH/0hKGWugiqDgLNXLRD/4TfHBEKmxIrmfu9Z5t7vwUKfwhFL6hqvo lXPJJKQpQ2z8+X2vZm/slsLn7J1yjrOsoJhKABDi+3QWWSGkaGwRJAdPVVyJMfJRNNNIKwVb U6B1BkX2XDKDGffF4TxlOpSQzdtNI/9gleOoUA8+jy8knnDYzjBNOZqLG2FuTdicBXblz0Mf vg41gd9kCwYXDnD91rJU8tzylXv03E75NCaTxTM+FBXPmsAVYQ4GYhhgFt8S2UWMoaaABLDe 7l5FdnLdDEcbmd8uLU2CaG4W2cLrUaI4jz2XbkcPQkqTQ3EB67hYkjiEE6Zy3ggOitiQGcqp j//OwE0EWznS4AEIAMYmP4M/V+T5RY5at/g7rUdNsLhWv1APYrh9RQefODYHrNRHUE9eosYb T6XMryR9hT8XlGOYRwKWwiQBoWSDiTMo/Xi29jUnn4BXfI2px2DTXwc22LKtLAgTRjP+qbU6 3Y0xnQN29UGDbYgyyK51DW3H0If2a3JNsheAAK+Xc9baj0LGIc8T9uiEWHBnCH+RdhgATnWW GKdDegUR5BkDfDg5O/FISymJBHx2Dyoklv5g4BzkgqTqwmaYzsl8UxZKvbaxq0zbehDda8lv hFXodNFMAgTLJlLuDYOGLK2AwbrS3Sp0AEbkpdJBb44qVlGm5bApZouHeJ/+n+7r12+lqdsA EQEAAcLAdgQYAQgAIAIbDBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftOH6AAoJEGgNwR1T C3ojVSkIALpAPkIJPQoURPb1VWjh34l0HlglmYHvZszJWTXYwavHR8+k6Baa6H7ufXNQtThR yIxJrQLW6rV5lm7TjhffEhxVCn37+cg0zZ3j7zIsSS0rx/aMwi6VhFJA5hfn3T0TtrijKP4A SAQO9xD1Zk9/61JWk8OysuIh7MXkl0fxbRKWE93XeQBhIJHQfnc+YBLprdnxR446Sh8Wn/2D Ya8cavuWf2zrB6cZurs048xe0UbSW5AOSo4V9M0jzYI4nZqTmPxYyXbm30Kvmz0rYVRaitYJ 4kyYYMhuULvrJDMjZRvaNe52tkKAvMevcGdt38H4KSVXAylqyQOW5zvPc4/sq9c= In-Reply-To: <20260908-b4-mmap-prepare-vma-flag-sanify-v1-18-dacf19cce22b@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Level: X-Spam-Score: -0.80 X-Spam-Flag: NO X-Spamd-Result: default: False [-0.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; FORGED_RECIPIENTS(2.00)[m:ljs@kernel.org,m:akpm@linux-foundation.org,m:liam@infradead.org,m:vbabka@kernel.org,m:jannh@google.com,m:david@kernel.org,m:rppt@kernel.org,m:surenb@google.com,m:corbet@lwn.net,m:gregkh@linuxfoundation.org,m:dennis.dalessandro@cornelisnetworks.com,m:leon@kernel.org,m:paul@paul-moore.com,m:stephen.smalley.work@gmail.com,m:ast@kernel.org,m:daniel@iogearbox.net,m:andrii@kernel.org,m:eddyz87@gmail.com,m:memxor@gmail.com,m:ziy@nvidia.com,m:baolin.wang@linux.alibaba.com,m:nico.pache@linux.dev,m:ryan.roberts@arm.com,m:dev.jain@arm.com,m:baohua@kernel.org,m:lance.yang@linux.dev,m:usama.arif@linux.dev,m:kas@kernel.org,m:dgilbert@interlog.com,m:James.Bottomley@HansenPartnership.com,m:mkp@kernel.org,m:jayalk@intworks.biz,m:simona@ffwll.ch,m:deller@gmx.de,m:sre@kernel.org,m:jhubbard@nvidia.com,m:mhiramat@kernel.org,m:peterz@infradead.org,m:tglx@kernel.org,m:bp@alien8.de,m:dave.hansen@linux.intel.com,m:x86@kernel.org,m:acme@kernel.org,m:namhyung@kernel.org,m:mark.rutlan d@arm.com,m:harry@kernel.org,m:vincent.guittot@linaro.org,m:maarten.lankhorst@linux.intel.com,m:mripard@kernel.org,m:airlied@gmail.com,m:will@kernel.org,m:aneesh.kumar@kernel.org,m:npiggin@gmail.com,m:arnd@arndb.de,m:muchun.song@linux.dev,m:willy@infradead.org,m:maz@kernel.org,m:oupton@kernel.org,m:catalin.marinas@arm.com,m:maddy@linux.ibm.com,m:anup@brainfault.org,m:pjw@kernel.org,m:palmer@dabbelt.com,m:aou@eecs.berkeley.edu,m:borntraeger@linux.ibm.com,m:frankja@linux.ibm.com,m:imbrenda@linux.ibm.com,m:agordeev@linux.ibm.com,m:gerald.schaefer@linux.ibm.com,m:hca@linux.ibm.com,m:gor@linux.ibm.com,m:davem@davemloft.net,m:andreas@gaisler.com,m:brauner@kernel.org,m:matthew.brost@intel.com,m:joshua.hahnjy@gmail.com,m:gourry@gourry.net,m:ying.huang@linux.alibaba.com,m:apopple@nvidia.com,m:chrisl@kernel.org,m:shikemeng@huaweicloud.com,m:nphamcs@gmail.com,m:baoquan.he@linux.dev,s:miklos@szeredi.hu,s:bpf@vger.kernel.org,s:kvm@vger.kernel.org,s:linux-arch@vger.kernel.org,s:linux-doc@vger.ker nel.org,s:linux-fbdev@vger.kernel.org,s:linux-fsdevel@vger.kernel.org,s:linux-kernel@vger.kernel.org,s:linux-perf-users@vger.kernel.org,s:linux-rdma@vger.kernel.org,s:linux-s390@vger.kernel.org,s:linux-scsi@vger.kernel.org,s:linux-sound@vger.kernel.org,s:linux-trace-kernel@vger.kernel.org,s:linux-usb@vger.kernel.org,s:selinux@vger.kernel.org,s:sparclinux@vger.kernel.org,s:xu.xin16@zte.com.cn]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.998]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; TAGGED_RCPT(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; URIBL_BLOCKED(0.00)[suse.de:email,suse.de:mid,imap1.dmz-prg2.suse.org:helo,suse.com:url]; ARC_NA(0.00)[]; FREEMAIL_TO(0.00)[kernel.org,linux-foundation.org,infradead.org,google.com,suse.de,suse.com,lwn.net,linuxfoundation.org,cornelisnetworks.com,ziepe.ca,paul-moore.com,gmail.com,perex.cz,iogearbox.net,nvidia.com,linux.alibaba.com,linux.dev,arm.com,interlog.com,HansenPartnership.com,intworks.biz,ffwll.ch,gmx.de,redhat.com,alien8.de,linux.intel.com,surriel.com,linaro.org,arndb.de,suse.cz,linux.ibm.com,brainfault.org,dabbelt.com,eecs.berkeley.edu,davemloft.net,gaisler.com,zeniv.linux.org.uk,intel.com,sk.com,gourry.net,tencent.com,huaweicloud.com,lge.com,cmpxchg.org,zte.com.cn,szeredi.hu]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLc4mba5u93cru16ncupstg97x)]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_GT_50(0.00)[134]; RCVD_COUNT_TWO(0.00)[2]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,suse.de:mid,imap1.dmz-prg2.suse.org:helo,suse.com:url] Am 08.09.26 um 22:01 schrieb Lorenzo Stoakes (ARM): > Currently all drivers which use defio allocate system memory. All of them > also set FBINFO_VIRTFB, other than ssd1307fb, however this driver allocates > system RAM, so simply failed to set this flag when it ought to. > > This patch sets FBINFO_VIRTFB on ssd1307fb probe, then drops setting VM_IO > in fb_deferred_io_mmap() and instead requires FBINFO_VIRTFB to be set, > erroring out with a kernel warning if not. > > The logic requires a page from the driver and since commit 1ecbc7dd2902 > ("fbdev/deferred-io: Always call get_page() for framebuffer pages") has > always required it to be refcounted, so this was implicitly already the > case. > > Finally this patch sets VM_MIXEDMAP, as the logic is mapping > kernel-allocated memory so this is appropriate. > > Signed-off-by: Lorenzo Stoakes (ARM) Reviewed-by: Thomas Zimmermann > --- > drivers/video/fbdev/core/fb_defio.c | 6 +++--- > drivers/video/fbdev/ssd1307fb.c | 2 ++ > 2 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c > index fd00b86e1ae6..fb359ecc3966 100644 > --- a/drivers/video/fbdev/core/fb_defio.c > +++ b/drivers/video/fbdev/core/fb_defio.c > @@ -366,13 +366,13 @@ int fb_deferred_io_mmap(struct fb_info *info, struct vm_area_struct *vma) > { > vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); > > + if (WARN_ON_ONCE(!(info->flags & FBINFO_VIRTFB))) > + return -EINVAL; > if (!try_module_get(THIS_MODULE)) > return -EINVAL; > > vma->vm_ops = &fb_deferred_io_vm_ops; > - vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); > - if (!(info->flags & FBINFO_VIRTFB)) > - vm_flags_set(vma, VM_IO); > + vm_flags_set(vma, VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP); > vma->vm_private_data = info->fbdefio_state; > > fb_deferred_io_state_get(info->fbdefio_state); /* released in vma->vm_ops->close() */ > diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c > index c4fdecafd856..958514a35433 100644 > --- a/drivers/video/fbdev/ssd1307fb.c > +++ b/drivers/video/fbdev/ssd1307fb.c > @@ -763,6 +763,8 @@ static int ssd1307fb_probe(struct i2c_client *client) > info->fix.smem_start = __pa(vmem); > info->fix.smem_len = vmem_size; > > + info->flags = FBINFO_VIRTFB; > + > fb_deferred_io_init(info); > > i2c_set_clientdata(client, info); > -- -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)