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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 08B4FC4332F for ; Fri, 21 Oct 2022 13:46:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0xrvt8BkfKrjapaf048gT08vZNxH8nd6mnwmkdA0hlg=; b=PkU7yOzCQFKN1e 12dPKXnSzY2rqkdlwUSvzpM2xM2x1Ww+mpSteQcrHgW8Fo1y1B+EnRrCAIGLqBcWbh9peDNg/e5Ls iqXzkk/6q11UoyBG6dFfebwf9+jqflMPxnfGdteIOQkBkNva36shIIEOBoWwuhC1rm2M6oTrwE3iZ chIq207sV+njtLzaL6Cgj4G8Z4OnDxWA6q5EuPLrbpfvAmmlvg/3VSBzjMOw2fsSnJGO3XEh4kGRA JteKwcKNDiesEzqmS9ETrulefBd5KWWdbQ1APdA0HX2m+FYz5zpPMfWTPhyXADyjj4HWzlNoAfdjs d/bntdKG47uQzwXPELFw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1olsM4-0088Mf-4l; Fri, 21 Oct 2022 13:46:32 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1olsM0-0088Hk-L3 for linux-riscv@lists.infradead.org; Fri, 21 Oct 2022 13:46:30 +0000 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4Mv5KC5rn4zJn4V; Fri, 21 Oct 2022 21:43:43 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 21 Oct 2022 21:46:25 +0800 Received: from [10.174.179.234] (10.174.179.234) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 21 Oct 2022 21:46:24 +0800 Message-ID: Date: Fri, 21 Oct 2022 21:46:23 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH] riscv: fix race when vmap stack overflow To: Andrea Parri CC: Guo Ren , Jisheng Zhang , "Paul Walmsley" , Palmer Dabbelt , Albert Ou , , References: <20221019154727.2395-1-jszhang@kernel.org> From: Tong Tiangen In-Reply-To: X-Originating-IP: [10.174.179.234] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221021_064628_900710_ED71B871 X-CRM114-Status: UNSURE ( 4.04 ) X-CRM114-Notice: Please train this message. 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org CgrlnKggMjAyMi8xMC8yMSAyMToyMiwgQW5kcmVhIFBhcnJpIOWGmemBkzoKPiBIaSBUb25nLAo+ ICAgCj4+Pj4gSSB1c2UgYXRvbWljX3NldF9yZWxlYXNlIGhlcmUsIGJlY2F1c2UgSSBuZWVkIGVh cmxpZXIgbWVtb3J5Cj4+Pj4gb3BlcmF0aW9ucyBmaW5pc2hlZCB0byBtYWtlIHN1cmUgdGhlIHNw IGlzIHJlYWR5IHRoZW4gc2V0IHRoZSBzcGluCj4+Pj4gZmxhZy4KPiAKPj4gCUNvbnNpZGVyIHRo aXMgaW1wbGVtZW50YXRpb246KQo+Pgo+PiAJc21wX3N0b3JlX21iKCZzcGluX3NoYWRvd19zdGFj aywgMCk7Cj4gCj4gc21wX3N0b3JlX21iKCkgaGFzICJXUklURV9PTkNFKCk7IHNtcF9tYigpIiBz ZW1hbnRpY3M7IHNvIGl0IGRvZXNuJ3QKPiBndWFyYW50ZWUgdGhhdCB0aGUgc3RvcmUgdG8gc3Bp bl9zaGFkb3dfc3RhY2sgaXMgb3JkZXJlZCBhZnRlciBwcm9ncmFtCj4gLW9yZGVyIGVhcmxpZXIg bWVtb3J5IGFjY2Vzc2VzLgo+IAo+ICAgIEFuZHJlYQo+IC4KCkhpIEFuZHJlYToKCklJVUMsIHRo ZSBlYXJsaWVyIG1lbW9yeSBhY2Nlc3MgYW1vc3dhcC5hcXJsLCBoZXJlIC5hcXJsIGd1YXJhbnRl ZSBpdC4KQnV0IGFueXdheSwgY29uc2lkZXIgd2UgZG9uJ3QgY2FyZSBhYm91dCBwZXJmb3JtYW5j ZSBoZXJlLCB1c2luZyAKc21wX3N0b3JlX3JlbGVhc2UoKShhZGQgYmFycmllcigpKSBzdXJlbHkg cmlnaHQuCgpUaGFua3MsClRvbmcuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMu aW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2xpbnV4LXJpc2N2Cg==