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identity=mailfrom; envelope-from="miller@hamnavoe.com"; helo=balrog.mythic-beasts.com; client-ip=46.235.227.24 Received: from balrog.mythic-beasts.com (balrog.mythic-beasts.com [46.235.227.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by tb-mx0.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Wed, 27 Oct 2021 10:10:56 -0400 (EDT) (envelope-from miller@hamnavoe.com) Received: from [88.97.27.83] (port=49592 helo=hamnavoe.com) by balrog.mythic-beasts.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.92.3) (envelope-from ) id 1mfjdi-0005qn-FI for 9fans@9fans.net; Wed, 27 Oct 2021 15:10:55 +0100 Message-ID: To: 9fans@9fans.net Subject: Re: [9fans] v9fs vs mmap (not quite SOLVED) From: Richard Miller <9fans@hamnavoe.com> Date: Wed, 27 Oct 2021 15:10:49 +0100 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BlackCat-Spam-Score: 1 Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: b7acfe2a-372f-11ec-adfa-a5661a90715a Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UYjA2NWY0ZGY2N2E4YmFiOS1NMDk3NmYyY2QyZWM0NTg4NTYzZDRl?= =?UTF-8?B?YjExPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M0976f2cd2ec4588563d4eb11:1:j6D43S7wGn5-9pAsBR_wCwhxph0Ye5wpiCfzrTX3HOA > But is it not possible that the FPGA tools don't > have the same issues with mmap that e.g. Go does? 1. Some of the fpga tools are closed-source so I can't check with confidence that they will never try to use mmap. 2. The go compiler is open-source so it was a simple matter to make an experimental variant on linux which uses read/write instead of mmap (as it does on plan 9). I still get the bus error code=3D0x2 when running this over v9fs. Hence the remaining v9fs problem is not mmap related. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tb065f4df67a8bab9-M0976f= 2cd2ec4588563d4eb11 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription