Return-path: Envelope-to: publicinbox@libre-riscv.org Delivery-date: Sat, 09 May 2020 08:52:25 +0100 Received: from localhost ([::1] helo=libre-riscv.org) by libre-soc.org with esmtp (Exim 4.89) (envelope-from ) id 1jXKHY-0004xK-0b; Sat, 09 May 2020 08:52:24 +0100 Received: from lkcl.net ([217.147.94.29]) by libre-soc.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1jXKHW-0004xE-0n for libre-riscv-dev@lists.libre-riscv.org; Sat, 09 May 2020 08:52:22 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lkcl.net; s=201607131; h=Content-Type:To:Subject:Message-ID:Date:From:In-Reply-To:References:MIME-Version; bh=B7rpHs9ONfYiSOTN9Jot746Xb9ye3MBP7WTEnaqbmmw=; b=TPwkUCXRf/mb581OVMdxZ1fCJVTs5sa1yv/9SSkdb/hIBbpqKyFotl2YJ6Equ5f5PU5q+yMgPkCNfyNlVnuiZS1ahHjrPc1NWKFggeuuiKb/oUNhCfEklCK85Zxf44Vz90XJRT/XV6AeV+YgynsWAHaif911XnDyKR7Sr6yrvR0=; Received: from mail-lf1-f47.google.com ([209.85.167.47]) by lkcl.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1jXKHV-0007dV-LJ for libre-riscv-dev@lists.libre-riscv.org; Sat, 09 May 2020 07:52:21 +0000 Received: by mail-lf1-f47.google.com with SMTP id z22so3274794lfd.0 for ; Sat, 09 May 2020 00:52:06 -0700 (PDT) X-Gm-Message-State: AOAM530axRGw/XCKbzhKxKGtbv/QfqJjny29Usbe9Sxi7IZUzY8GvaAC I6aBzIO62K/Fush6oebwxwZF8jYTnylh4QBfn9g= X-Google-Smtp-Source: ABdhPJzL3AKnnJWBJQ0EGekLSfLMIDbGgQ/sroVqnTHBOZRsASC5L/08RNuA0KaFTPSvZXQy1BqylFx8RrJydLxcGZw= X-Received: by 2002:a19:4311:: with SMTP id q17mr4282052lfa.67.1589010720563; Sat, 09 May 2020 00:52:00 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Luke Kenneth Casson Leighton Date: Sat, 9 May 2020 08:51:48 +0100 X-Gmail-Original-Message-ID: Message-ID: To: Libre-RISCV General Development Subject: Re: [libre-riscv-dev] spinlocks considered harmful X-BeenThere: libre-riscv-dev@lists.libre-riscv.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Libre-RISCV General Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Libre-RISCV General Development Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: libre-riscv-dev-bounces@lists.libre-riscv.org Sender: "libre-riscv-dev" T24gU2F0LCBNYXkgOSwgMjAyMCBhdCAxMjoyMCBBTSBKYWNvYiBMaWZzaGF5IDxwcm9ncmFtbWVy amFrZUBnbWFpbC5jb20+IHdyb3RlOgoKPiBJIGVuZGVkIHVwIHJlcG9ydGluZyBhIGJ1ZyB0byBQ eU8zIHRvIG5vdCB1c2Ugc3BpbmxvY2tzLCB0aGUgZXhwbGFuYXRvcnkKPiBibG9nIHBvc3QgSSBs aWtlZCB0byBpcyBxdWl0ZSBpbmZvcm1hdGl2ZSBhbmQgSSdkIGNvbnNpZGVyIGl0IHJlY29tbWVu ZGVkCj4gcmVhZGluZyBmb3IgYW55b25lIHdyaXRpbmcgbXVsdGktdGhyZWFkZWQgcHJvZ3JhbXMg YW5kL29yIHVzaW5nIGF0b21pY3M6Cj4KPiBodHRwczovL21hdGtsYWQuZ2l0aHViLmlvLzIwMjAv MDEvMDIvc3BpbmxvY2tzLWNvbnNpZGVyZWQtaGFybWZ1bC5odG1sCgpvaCBsb29rLiAgdGhleSdy ZSByZWRpc2NvdmVyaW5nIHN5c3RlbXMgcHJvZ3JhbW1pbmcgYW5kIGZ1bmRhbWVudGFsCnN5c3Rl bXMgZGVzaWduLCBiZWNhdXNlIHRoZXkncmUgd29ya2luZyBpbiBhIGhpZ2gtbGV2ZWwgbGFuZ3Vh Z2UgYW5kCmhhdmVuJ3QgaGFkIHRoZSBraW5kIG9mIHRyYWluaW5nIGFuZCBleHBlcmllbmNlIHRo YXQgdGhpcyBleHRyZW1lbHkKd2VsbCB3cml0dGVuIGFydGljbGUgZGVzY3JpYmVzLgoKcmVtZW1i ZXIsIGphY29iLCBpIHdhcyBvbmUgb2YgdGhlIGtleSBhcmNoaXRlY3RzIG9uIHNhbWJhLCB3aGlj aCBoYWQKcGVvcGxlIHdvcmtpbmcgb24gaXQgd2hvIGFic29sdXRlbHkgaGFkIHRvIGtub3cgd2hh dCB0aGV5IHdlcmUgZG9pbmcuCgpIUCB0b2xkIHVzIGJhY2sgaW4gMTk5NyB0aGF0IHRoZXkgd2Vy ZSBydW5uaW5nIDQ4LDAwMCBzaW11bHRhbmVvdXMKdXNlcnMgYWNyb3NzIDE5IHNlcGFyYXRlIEhQ L1VYIG1pbmkgY29tcHV0ZXJzLCBlYWNoIHdpdGggTkZTLW1vdW50cwpvbnRvIDQgbWFpbmZyYW1l cy4gIHNvIC0gcmVtZW1iZXIgdGhpcyBpcyBvbiBoYXJkd2FyZSBmcm9tICoxOTk3KiAtCnRoZXkg aGFkIDMsMDAwIHNpbXVsdGFuZW91cyB1c2VycyBwZXIgSFAvVVggbWluaWNvbXB1dGVyICphbmQq CmNhcGFjaXR5IHRvIHNwYXJlIHRvIGRvIG91dGdvaW5nIE5GUyB0cmFmZmljLgoKaWYgc2FtYmEg aGFkIGJlZW4gZGVzaWduZWQgdXNpbmcgc3BpbmxvY2tzIGZvciByZXNvdXJjZSBjb250ZW50aW9u IGl0CndvdWxkIGhhdmUgdGFua2VkIGF0IGFyb3VuZCAxNTAtMjAwIHVzZXJzIHBlciBtaW5pY29t cHV0ZXIuCgpsLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KbGlicmUtcmlzY3YtZGV2IG1haWxpbmcgbGlzdApsaWJyZS1yaXNjdi1kZXZAbGlzdHMubGli cmUtcmlzY3Yub3JnCmh0dHA6Ly9saXN0cy5saWJyZS1yaXNjdi5vcmcvbWFpbG1hbi9saXN0aW5m by9saWJyZS1yaXNjdi1kZXYK