From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH 1/2] xen: fix race in xen_qlock_wait() Date: Mon, 01 Oct 2018 02:54:13 -0600 Message-ID: <5BB1E0B502000078001ED124__23166.6799787947$1538383989$gmane$org@prv1-mh.provo.novell.com> References: <20181001071641.19282-1-jgross@suse.com> <20181001071641.19282-2-jgross@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1g6ty8-0003z1-CV for xen-devel@lists.xenproject.org; Mon, 01 Oct 2018 08:54:20 +0000 In-Reply-To: <20181001071641.19282-2-jgross@suse.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Juergen Gross Cc: hpa@zytor.com, Peter Zijlstra , the arch/x86 maintainers , linux-kernel@vger.kernel.org, stable@vger.kernel.org, mingo@redhat.com, Borislav Petkov , longman@redhat.com, xen-devel , tglx@linutronix.de, Boris Ostrovsky List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDAxLjEwLjE4IGF0IDA5OjE2LCA8amdyb3NzQHN1c2UuY29tPiB3cm90ZToKPiBJbiB0 aGUgZm9sbG93aW5nIHNpdHVhdGlvbiBhIHZjcHUgd2FpdGluZyBmb3IgYSBsb2NrIG1pZ2h0IG5v dCBiZQo+IHdva2VuIHVwIGZyb20geGVuX3BvbGxfaXJxKCk6Cj4gCj4gQ1BVIDE6ICAgICAgICAg ICAgICAgIENQVSAyOiAgICAgICAgICAgICAgICAgICAgICBDUFUgMzoKPiB0YWtlcyBhIHNwaW5s b2NrCj4gICAgICAgICAgICAgICAgICAgICAgIHRyaWVzIHRvIGdldCBsb2NrCj4gICAgICAgICAg ICAgICAgICAgICAgIC0+IHhlbl9xbG9ja193YWl0KCkKPiAgICAgICAgICAgICAgICAgICAgICAg ICAtPiB4ZW5fY2xlYXJfaXJxX3BlbmRpbmcoKQoKRG9lc24ndCB0aGUgbGFzdCBsaW5lIGFib3Zl IC4uLgoKPiBmcmVlcyB0aGUgbG9jawo+IC0+IHhlbl9xbG9ja19raWNrKGNwdTIpCgouLi4gbmVl ZCB0byBiZSBiZWxvdyBoZXJlPwoKPiB0YWtlcyBsb2NrIGFnYWluCj4gICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICB0cmllcyB0byBnZXQgbG9jawo+ICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgLT4gKmxvY2sg PSBfUV9TTE9XX1ZBTAo+ICAgICAgICAgICAgICAgICAgICAgICAgIC0+ICpsb2NrID09IF9RX1NM T1dfVkFMID8KPiAgICAgICAgICAgICAgICAgICAgICAgICAtPiB4ZW5fcG9sbF9pcnEoKQo+IGZy ZWVzIHRoZSBsb2NrCj4gLT4geGVuX3Fsb2NrX2tpY2soY3B1MykKPiAKPiBBbmQgY3B1IDIgd2ls bCBzbGVlcCBmb3JldmVyLgo+IAo+IFRoaXMgY2FuIGJlIGF2b2lkZWQgZWFzaWx5IGJ5IG1vZGlm eWluZyB4ZW5fcWxvY2tfd2FpdCgpIHRvIGNhbGwKPiB4ZW5fcG9sbF9pcnEoKSBvbmx5IGlmIHRo ZSByZWxhdGVkIGlycSB3YXMgbm90IHBlbmRpbmcgYW5kIHRvIGNhbGwKPiB4ZW5fY2xlYXJfaXJx X3BlbmRpbmcoKSBvbmx5IGlmIGl0IHdhcyBwZW5kaW5nLgo+IAo+IENjOiBzdGFibGVAdmdlci5r ZXJuZWwub3JnIAo+IENjOiBXYWltYW4uTG9uZ0BocC5jb20gCj4gQ2M6IHBldGVyekBpbmZyYWRl YWQub3JnIAo+IFNpZ25lZC1vZmYtYnk6IEp1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4K ClBhdGNoIGl0c2VsZgpSZXZpZXdlZC1ieTogSmFuIEJldWxpY2ggPGpiZXVsaWNoQHN1c2UuY29t PgoKSmFuCgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f Clhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0 dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=