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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7870DC433EF for ; Wed, 13 Oct 2021 03:33:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 35F9660D43 for ; Wed, 13 Oct 2021 03:33:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 35F9660D43 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=qQvjSkxhN8T1y8HLSPFwNqMGAehhHn3TbxkEQ++kto8=; b=GcjUYb45eoqrJ0HOIC2t3l26+M nj+jrJTRT+VfXRcyWJdEYQx0g9Jy/1PGwMaLIvS7asYcfChD9VZwDRSDSpUDA8XrryQJ3+9ohe8Vu y+PFvH0IkWHbmPOnmT+HGU26emdCYMi9DWnvl3aNCPrm8HhitCCqX1xbEO/8Zzi/WJp7U9bfPhm6u 6Rj0lwpPAK8cmdjTTuWiovhm0sK1939c9HFXEG+Sos+RXvuRzaFyonlnj6wl/P0meUmNazMo1y7t3 nSM2uUfdpW0L4/QyCb+/tLw6GB0XhZEwdcM/jQjSyVlp75pM6eu/eAbXfcRsh5Zl8XUY373lbd0GA VnW+goIw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1maV1M-00Ekgj-07; Wed, 13 Oct 2021 03:33:36 +0000 Received: from out30-56.freemail.mail.aliyun.com ([115.124.30.56]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1maV1I-00EkfZ-Tf for linux-riscv@lists.infradead.org; Wed, 13 Oct 2021 03:33:34 +0000 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R121e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04400; MF=yun.wang@linux.alibaba.com; NM=1; PH=DS; RN=31; SR=0; TI=SMTPD_---0Ure8YWn_1634096007; Received: from testdeMacBook-Pro.local(mailfrom:yun.wang@linux.alibaba.com fp:SMTPD_---0Ure8YWn_1634096007) by smtp.aliyun-inc.com(127.0.0.1); Wed, 13 Oct 2021 11:33:29 +0800 Subject: Re: [PATCH v2 0/2] fix & prevent the missing preemption disabling To: Steven Rostedt Cc: Guo Ren , Ingo Molnar , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence , Colin Ian King , Masami Hiramatsu , "Peter Zijlstra (Intel)" , Nicholas Piggin , Jisheng Zhang , linux-csky@vger.kernel.org, linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, live-patching@vger.kernel.org References: <8c7de46d-9869-aa5e-2bb9-5dbc2eda395e@linux.alibaba.com> <1a8e8d73-b508-f90b-0d82-eb2da45a720e@linux.alibaba.com> <20211012232658.7dac3f43@oasis.local.home> From: =?UTF-8?B?546L6LSH?= Message-ID: <69e9cf98-883c-0016-4b07-12afbf138094@linux.alibaba.com> Date: Wed, 13 Oct 2021 11:33:27 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20211012232658.7dac3f43@oasis.local.home> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211012_203333_142651_DFB47772 X-CRM114-Status: GOOD ( 15.89 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org CgpPbiAyMDIxLzEwLzEzIOS4iuWNiDExOjI2LCBTdGV2ZW4gUm9zdGVkdCB3cm90ZToKPiBQbGVh c2Ugc3RhcnQgYSBuZXcgdGhyZWFkIHdoZW4gc2VuZGluZyBuZXcgdmVyc2lvbnMuIHYyIHNob3Vs ZCBub3QgYmUgYQo+IHJlcGx5IHRvIHYxLiBJZiB5b3Ugd2FudCB0byByZWZlcmVuY2UgdjEsIGp1 c3QgYWRkIGl0IHRvIHRoZSBjb3Zlcgo+IGxldHRlciB3aXRoIGEgbGluayB0YWc6Cj4gCj4gTGlu azogaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvYWxsLzhjN2RlNDZkLTk4NjktYWE1ZS0yYmI5LTVk YmMyZWRhMzk1ZUBsaW51eC5hbGliYWJhLmNvbS8KCk9rLCBJJ2xsIHJlc2VuZCBpdCB3aXRoIGxp bmsgdGhlbi4KClJlZ2FyZHMsCk1pY2hhZWwgV2FuZwoKCj4gCj4gLS0gU3RldmUKPiAKPiAKPiBP biBXZWQsIDEzIE9jdCAyMDIxIDExOjE2OjU2ICswODAwCj4g546L6LSHIDx5dW4ud2FuZ0BsaW51 eC5hbGliYWJhLmNvbT4gd3JvdGU6Cj4gCj4+IFRoZSB0ZXN0aW5nIHNob3cgdGhhdCBwZXJmX2Z0 cmFjZV9mdW5jdGlvbl9jYWxsKCkgYXJlIHVzaW5nIHNtcF9wcm9jZXNzb3JfaWQoKQo+PiB3aXRo IHByZWVtcHRpb24gZW5hYmxlZCwgYWxsIHRoZSBjaGVja2luZyBvbiBDUFUgY291bGQgYmUgd3Jv bmcgYWZ0ZXIgcHJlZW1wdGlvbi4KPj4KPj4gQXMgUGV0ZXIgcG9pbnQgb3V0LCB0aGUgc2VjdGlv biBiZXR3ZWVuIGZ0cmFjZV90ZXN0X3JlY3Vyc2lvbl90cnlsb2NrL3VubG9jaygpCj4+IHBhaXIg cmVxdWlyZSB0aGUgcHJlZW1wdGlvbiB0byBiZSBkaXNhYmxlZCBhcyAnRG9jdW1lbnRhdGlvbi90 cmFjZS9mdHJhY2UtdXNlcy5yc3QnCj4+IGV4cGxhaW5lZCwgYnV0IGN1cnJlbnRseSB0aGUgd29y ayBpcyBkb25lIG91dHNpZGUgb2YgdGhlIGhlbHBlcnMuCj4+Cj4+IFBhdGNoIDEvMiB3aWxsIG1h a2Ugc3VyZSBwcmVlbXB0aW9uIGRpc2FibGVkIGFmdGVyIHRyeWxvY2soKSBzdWNjZWVkLAo+PiBw YXRjaCAyLzIgd2lsbCBkbyBzbXBfcHJvY2Vzc29yX2lkKCkgY2hlY2tpbmcgYWZ0ZXIgdHJ5bG9j ayB0byBhZGRyZXNzIHRoZQo+PiBpc3N1ZS4KPj4KPj4gTWljaGFlbCBXYW5nICgyKToKPj4gICBm dHJhY2U6IGRpc2FibGUgcHJlZW1wdGlvbiBiZXR3ZWVuIGZ0cmFjZV90ZXN0X3JlY3Vyc2lvbl90 cnlsb2NrL3VubG9jaygpCj4+ICAgZnRyYWNlOiBkbyBDUFUgY2hlY2tpbmcgYWZ0ZXIgcHJlZW1w dGlvbiBkaXNhYmxlZAo+Pgo+PiAgYXJjaC9jc2t5L2tlcm5lbC9wcm9iZXMvZnRyYWNlLmMgICAg IHwgIDIgLS0KPj4gIGFyY2gvcGFyaXNjL2tlcm5lbC9mdHJhY2UuYyAgICAgICAgICB8ICAyIC0t Cj4+ICBhcmNoL3Bvd2VycGMva2VybmVsL2twcm9iZXMtZnRyYWNlLmMgfCAgMiAtLQo+PiAgYXJj aC9yaXNjdi9rZXJuZWwvcHJvYmVzL2Z0cmFjZS5jICAgIHwgIDIgLS0KPj4gIGFyY2gveDg2L2tl cm5lbC9rcHJvYmVzL2Z0cmFjZS5jICAgICB8ICAyIC0tCj4+ICBpbmNsdWRlL2xpbnV4L3RyYWNl X3JlY3Vyc2lvbi5oICAgICAgfCAyMiArKysrKysrKysrKysrKysrKysrKystCj4+ICBrZXJuZWwv bGl2ZXBhdGNoL3BhdGNoLmMgICAgICAgICAgICAgfCAgNiAtLS0tLS0KPj4gIGtlcm5lbC90cmFj ZS90cmFjZV9ldmVudF9wZXJmLmMgICAgICB8ICA2ICsrKy0tLQo+PiAga2VybmVsL3RyYWNlL3Ry YWNlX2Z1bmN0aW9ucy5jICAgICAgIHwgIDUgLS0tLS0KPj4gIDkgZmlsZXMgY2hhbmdlZCwgMjQg aW5zZXJ0aW9ucygrKSwgMjUgZGVsZXRpb25zKC0pCj4+CgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgt cmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWls bWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==