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a=rsa-sha256; c=relaxed/relaxed; d=prgmr.com; s=default; t=1570067445; bh=Rxx0DG70SBXjABlHlGHU5ANey9hBmxXgZTNQdE6vObo=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=otcmSdACfSt2CiN67KqyJHJmOPqXnACrr19fMmVvk3nHZOON+mb5TWMNmQ6ttFXp8 PbMVfjGiX0EZu6tHYiTve8U03XBHh1HZfpokfU4iaF26hVio/id5UjOT8j+umCRO7d TcPKqQs2YWwj/fcy147ymB1zBm0nKexXwQTH9H3I= From: Chris Brannon To: Andrew Cooper References: <470f5ce1-d43f-a5dd-a00d-e2ec339b06c0@suse.com> <8736gb5by4.fsf@cmbmachine.messageid.invalid> Date: Wed, 02 Oct 2019 13:55:44 -0700 In-Reply-To: (Andrew Cooper's message of "Wed, 2 Oct 2019 18:41:32 +0100") Message-ID: <87pnje50kv.fsf@cmbmachine.messageid.invalid> MIME-Version: 1.0 Subject: Re: [Xen-devel] Crash with nested HVM and Linux v5.1+ X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Sarah Newman , Jan Beulich , "xen-devel@lists.xen.org" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" QW5kcmV3IENvb3BlciA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3JpdGVzOgoKPiAoWEVO KSB0cmFwcy5jOjE1NzY6IEdQRiAoMDAwMCk6IGZmZmY4MmQwODAzMWE4MGYgW3ZteC5jI3ZteF9t c3JfcmVhZF9pbnRlcmNlcHQrMHgzODcvMHgzZmRdIC0+IGZmZmY4MmQwODAzN2M5ZjIKPiAoWEVO KSB0cmFwcy5jOjE1NzY6IEdQRiAoMDAwMCk6IGZmZmY4MmQwODAzMWE4MGYgW3ZteC5jI3ZteF9t c3JfcmVhZF9pbnRlcmNlcHQrMHgzODcvMHgzZmRdIC0+IGZmZmY4MmQwODAzN2M5ZjIKPiAoZDIp IHhzX3dyaXRlKC92bS85NWYxMWZjMC1iOWU3LTQ3ZmYtODUyMy1iYWNhYjM1Yjk2YjYvcnRjL3Rp bWVvZmZzZXQpOiBFQUNDRVMKPiAoWEVOKSBkMXYxIFVuaGFuZGxlZCBuZXN0ZWQgdm1leGl0OiBy ZWFzb24gNTEKPiAoWEVOKSBkb21haW5fY3Jhc2ggY2FsbGVkIGZyb20gdnZteC5jOjI2NzEKPiAo WEVOKSBEb21haW4gMSAodmNwdSMxKSBjcmFzaGVkIG9uIGNwdSMyOgo+Cj4gNTEgaXMgdGhlIFJE VFNDUCBpbnRlcmNlcHQuICBJdCBzZWVtcyB0aGF0IG5vb25lIGhhcyBldmVyIHRyaWVkIGV4ZWN1 dGluZyBhCj4gUkRUU0NQIGluc3RydWN0aW9uIGluIG5lc3RlZCB2aXJ0IHlldC4uLiB3aGljaCBn b2VzIHRvIHNob3cgaG93IHVudGVzdGVkIHRoaXMKPiBhbGwgaXMuCj4KPiBDYW4geW91IHNlZSBh Ym91dCBnaXZpbmcgdGhpcyBwYXRjaCBhIHNwaW4/Cj4KPiB+QW5kcmV3Cj4KPiBkaWZmIC0tZ2l0 IGEveGVuL2FyY2gveDg2L2h2bS92bXgvdnZteC5jIGIveGVuL2FyY2gveDg2L2h2bS92bXgvdnZt eC5jCj4gaW5kZXggZmRmNDQ5YmZkMS4uNjY5NmJkNjI0MCAxMDA2NDQKPiAtLS0gYS94ZW4vYXJj aC94ODYvaHZtL3ZteC92dm14LmMKPiArKysgYi94ZW4vYXJjaC94ODYvaHZtL3ZteC92dm14LmMK PiBAQCAtMjQ5MSw2ICsyNDkxLDcgQEAgaW50IG52bXhfbjJfdm1leGl0X2hhbmRsZXIoc3RydWN0 IGNwdV91c2VyX3JlZ3MgKnJlZ3MsCj4gICAgICAgICAgICAgIG52Y3B1LT5udl92bWV4aXRfcGVu ZGluZyA9IDE7Cj4gICAgICAgICAgYnJlYWs7Cj4gICAgICBjYXNlIEVYSVRfUkVBU09OX1JEVFND Ogo+ICsgICAgY2FzZSBFWElUX1JFQVNPTl9SRFRTQ1A6Cj4gICAgICAgICAgY3RybCA9IF9fbjJf ZXhlY19jb250cm9sKHYpOwo+ICAgICAgICAgIGlmICggY3RybCAmIENQVV9CQVNFRF9SRFRTQ19F WElUSU5HICkKPiAgICAgICAgICAgICAgbnZjcHUtPm52X3ZtZXhpdF9wZW5kaW5nID0gMTsKPiBA QCAtMjUwMSw2ICsyNTAyLDggQEAgaW50IG52bXhfbjJfdm1leGl0X2hhbmRsZXIoc3RydWN0IGNw dV91c2VyX3JlZ3MgKnJlZ3MsCj4gICAgICAgICAgICAgICAqIGF2b2lkaW5nIGNoYW5naW5nIGd1 ZXN0X3RzYyBhbmQgbWVzc2luZyB1cCB0aW1la2VlcGluZyBpbiBMMQo+ICAgICAgICAgICAgICAg Ki8KPiAgICAgICAgICAgICAgbXNyX3NwbGl0KHJlZ3MsIGh2bV9nZXRfZ3Vlc3RfdHNjKHYpICsg Z2V0X3Z2bWNzKHYsCj4gVFNDX09GRlNFVCkpOwo+ICsgICAgICAgICAgICBpZiAoIGV4aXRfcmVh c29uID09IEVYSVRfUkVBU09OX1JEVFNDUCApCj4gKyAgICAgICAgICAgICAgICByZWdzLT5yY3gg PSB2LT5hcmNoLm1zcnMtPnRzY19hdXg7Cj4gICAgICAgICAgICAgIHVwZGF0ZV9ndWVzdF9laXAo KTsKPiAgCj4gICAgICAgICAgICAgIHJldHVybiAxOwoKSGkgQW5kcmV3LApUaGlzIHBhdGNoIHdv cmtzIGZvciBtZS4gIFRoZSBMMiBkb21VIGJvb3RzIHN1Y2Nlc3NmdWxseS4KClRoYW5rIHlvdSEK Ci0tIENocmlzCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpo dHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs