From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Date: Fri, 21 Aug 2015 01:17:48 +0200 From: Peter Zijlstra Subject: Re: [V3 PATCH 0/4] Fix race issues among panic, NMI and crash_kexec Message-ID: <20150820231748.GG3161@worktop.event.rightround.com> References: <20150806054543.25766.29590.stgit@softrs> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20150806054543.25766.29590.stgit@softrs> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Hidehiro Kawai Cc: x86@kernel.org, Jonathan Corbet , linux-doc@vger.kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Michal Hocko , Thomas Gleixner , "Eric W. Biederman" , "H. Peter Anvin" , Masami Hiramatsu , Andrew Morton , Ingo Molnar , Vivek Goyal ClVzZXItQWdlbnQ6IFN0R2l0LzAuMTYKCkZ3aXcsIHN0Z2l0IGlzIGJyb2tlbiB3cnQgc2VuZGlu ZyBlbWFpbCwgYWxsIHlvdXIgZW1haWxzIGhhdmUgdGhlIGV4YWN0CnNhbWUgdGltZXN0YW1wLCB3 aGljaCBtZWFucyB0aGF0IHRoZSBlbWFpbHMgd2lsbCBiZSBvcmRlcmVkIG9uIHJlY2VpdmVkCnRp bWVzdGFtcCB3aGVuIHRocmVhZGVkIGFuZCBnZW5lcmF0ZSB0aGUgYmVsb3cgbWVzczoKCgogQXVn IDA2IEhpZGVoaXJvIEthd2FpICAoMS45SykgW1YzIFBBVENIIDAvNF0gRml4IHJhY2UgaXNzdWVz IGFtb25nIHBhbmljLCBOTUkgYW5kIGNyYXNoX2tleGVjCiBBdWcgMDYgSGlkZWhpcm8gS2F3YWkg ICgyLjRLKSDilJzilIA+W1YzIFBBVENIIDMvNF0ga2V4ZWM6IEZpeCByYWNlIGJldHdlZW4gcGFu aWMoKSBhbmQgY3Jhc2hfa2V4ZWMoKSBjYWxsZWQgZGlyZWN0bHkKIEF1ZyAwNiBIaWRlaGlybyBL YXdhaSAgKDQuOUspIOKUnOKUgD5bVjMgUEFUQ0ggMS80XSBwYW5pYy94ODY6IEZpeCByZS1lbnRy YW5jZSBwcm9ibGVtIGR1ZSB0byBwYW5pYyBvbiBOTUkKIEF1ZyAwNiBIaWRlaGlybyBLYXdhaSAg KDUuM0spIOKUnOKUgD5bVjMgUEFUQ0ggMi80XSBwYW5pYy94ODY6IEFsbG93IGNwdXMgdG8gc2F2 ZSByZWdpc3RlcnMgZXZlbiBpZiB0aGV5IGFyZSBsb29waW5nIGluIE5NSSBjb250ZXh0CiBBdWcg MDYgSGlkZWhpcm8gS2F3YWkgICgyLjVLKSDilJzilIA+W1YzIFBBVENIIDQvNF0geDg2L2FwaWM6 IEludHJvZHVjZSBub2V4dG5taSBib290IG9wdGlvbgoKCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwprZXhlYyBtYWlsaW5nIGxpc3QKa2V4ZWNAbGlzdHMu aW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2tleGVjCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753231AbbHTXSG (ORCPT ); Thu, 20 Aug 2015 19:18:06 -0400 Received: from casper.infradead.org ([85.118.1.10]:33736 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752486AbbHTXSE (ORCPT ); Thu, 20 Aug 2015 19:18:04 -0400 Date: Fri, 21 Aug 2015 01:17:48 +0200 From: Peter Zijlstra To: Hidehiro Kawai Cc: Jonathan Corbet , Ingo Molnar , "Eric W. Biederman" , "H. Peter Anvin" , Andrew Morton , Thomas Gleixner , Vivek Goyal , linux-doc@vger.kernel.org, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Michal Hocko , Masami Hiramatsu Subject: Re: [V3 PATCH 0/4] Fix race issues among panic, NMI and crash_kexec Message-ID: <20150820231748.GG3161@worktop.event.rightround.com> References: <20150806054543.25766.29590.stgit@softrs> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20150806054543.25766.29590.stgit@softrs> User-Agent: Mutt/1.5.22.1 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org User-Agent: StGit/0.16 Fwiw, stgit is broken wrt sending email, all your emails have the exact same timestamp, which means that the emails will be ordered on received timestamp when threaded and generate the below mess: Aug 06 Hidehiro Kawai (1.9K) [V3 PATCH 0/4] Fix race issues among panic, NMI and crash_kexec Aug 06 Hidehiro Kawai (2.4K) ├─>[V3 PATCH 3/4] kexec: Fix race between panic() and crash_kexec() called directly Aug 06 Hidehiro Kawai (4.9K) ├─>[V3 PATCH 1/4] panic/x86: Fix re-entrance problem due to panic on NMI Aug 06 Hidehiro Kawai (5.3K) ├─>[V3 PATCH 2/4] panic/x86: Allow cpus to save registers even if they are looping in NMI context Aug 06 Hidehiro Kawai (2.5K) ├─>[V3 PATCH 4/4] x86/apic: Introduce noextnmi boot option