From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oren Laadan Subject: Re: [PATCH] c/r: tolerate X86_EFLAGS_RF on restart Date: Wed, 28 Oct 2009 21:20:04 -0400 Message-ID: <4AE8EDC4.5010202@librato.com> References: <1256323024-20268-1-git-send-email-orenl@librato.com> <20091026145746.GA23564@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20091026145746.GA23564-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: "Serge E. Hallyn" Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Avi Kivity , Alexey Dobriyan List-Id: containers.vger.kernel.org CkFmdGVyIHJlYWRpbmcgdGhlIGNvZGUgYSBiaXQgbW9yZSwgYW5kIHNlZWluZyB0aGF0OgoKMSkg cHRyYWNlIHVzZXMgdGhlIGRlYnVncmVnIG9mIGEgcHJvY2VzcyBzbyBtYXkgYmUgaW50ZXJlc3Rl ZCBpbgp0aGF0IHBhcnRpY3VsYXIgZmxhZywgYW5kCgoyKSBldmVuIHdpdGhvdXQgcHRyYWNlIHVz ZXJzcGFjZSBjYW4gc2V0IHRoYXQgZmxhZyAoYnkgc3VpdGFibHkKc2V0dGluZyB0aGUgcmVzdG9y ZSBjb250ZXh0IGZyb20gYSBzaWduYWwgaGFuZGxlcikKCkkgbm93IHRoaW5rIHRoYXQgd2Ugc2hv dWxkIGluc3RlYWQ6CgoxKSBLZWVwIHRoZSBYODZfRUZMQUdTX1JGIGZyb20gdGhlIHRpbWUgb2Yg Y2hlY2twb2ludCAqYXMgaXMqCgoyKSBJZiB0aGUgcmVzdGFydGluZyB0YXNrIGFscmVhZHkgaGFz IHRoaXMgZmxhZyBzZXQgcHJpb3IgdG8KcmVzdG9yaW5nIGVmbGFncyBmcm9tIHRoZSBzYXZlZCB2 YWx1ZSwgdGhlbiBwcmVzZXJ2ZSB0aGUgZXhpc3RpbmcKZmxhZyBldmVuIGlmIGF0IHRoZSB0aW1l IG9mIGNoZWNrcG9pbnQgaXQgd2Fzbid0IHNldC4KClVubGVzcyBzb21lb25lcyB5ZWxscywgSSds bCBjb21taXQgdGhpcyBzb29uLgoKT3JlbgoKU2VyZ2UgRS4gSGFsbHluIHdyb3RlOgo+IFF1b3Rp bmcgT3JlbiBMYWFkYW4gKG9yZW5sQGxpYnJhdG8uY29tKToKPj4gT24gcmVzdGFydCwgdGhlIGMv ciBjb2RlIHRoYXQgc2FuaXRpemVzIGEgdGFzaydzIEVGTEFHUyBmYWlsZWQgd2l0aCBhbgo+PiBl cnJvciBpZiB0aGUgWDg2X0VGTEFHU19SRiB3YXMgc2V0LiBIb3dldmVyLCB0aGVyZSBhcmUgY2Fz ZXMgaW4gd2hpY2gKPj4gYSB0YXNrIGxlZ2l0aW1hdGVseSBoYXMgdGhpcyBmbGFnIHJlY29yZGVk IGF0IGNoZWNrcG9pbnQsIHN1Y2ggYXM6Cj4+Cj4+IDEpIFdlIGFyZSBydW5uaW5nIGluc2lkZSBh IEtWTSBndWVzdCwgYW5kIHRoZSBndWVzdCBpcyBiZWluZyBkZWJ1Z2dlZAo+PiAoc2VlIGFyY2gv eDg2L2t2bS97c3ZtLHZteH0uYywgdmlhIGNhbGxiYWNrcyBmcm9tIHFlbXUuCj4+Cj4+IDIpIFRo ZSBrZXJuZWwgaXRzZWxmIGlzIGJlaW5nIGRlYnVnZ2VkIHVzaW5nIGtnYmQuCj4+Cj4+IDMpIEV4 Y2VwdGlvbnMgdGhhdCBvY2N1ciB1bmRlciBjZXJ0YWluIGNvbmRpdGlvbiB3aWxsIHNldCB0aGlz IGZsYWcKPj4gb24gdGhlIGN1cnJlbnRseSBydW5uaW5nIHRhc2suIEZvciBkZXRhaWxzIHNlZSBw YWdlIDY3OSBpbiBJbnRlbCdzCj4+IG1hbnVhbCAoaHR0cDovL3d3dy5pbnRlbC5jb20vQXNzZXRz L1BERi9tYW51YWwvMjUzNjY4LnBkZiksIGxpa2U6Cj4+Cj4+ICAgV2hlbiBjYWxsaW5nIGFuIGV2 ZW50IGhhbmRsZXIsIEludGVsIDY0IGFuZCBJQS0zMiBwcm9jZXNzb3JzCj4+ICAgZXN0YWJsaXNo IHRoZSB2YWx1ZSBvZiB0aGUgUkYgZmxhZyBpbiB0aGUgRUZMQUdTIGltYWdlIHB1c2hlZCBvbiB0 aGUKPj4gICBzdGFjazoKPj4gICAgIOKAoiBGb3IgYW55IGZhdWx0LWNsYXNzIGV4Y2VwdGlvbiBl eGNlcHQgYSBkZWJ1ZyBleGNlcHRpb24KPj4gICAgICAgZ2VuZXJhdGVkIGluIHJlc3BvbnNlIHRv IGFuIGluc3RydWN0aW9uIGJyZWFrcG9pbnQsIHRoZSB2YWx1ZQo+PiAgICAgICBwdXNoZWQgZm9y IFJGIGlzIDEuCj4+ICAgICDigKIgRm9yIGFueSBpbnRlcnJ1cHQgYXJyaXZpbmcgYWZ0ZXIgYW55 IGl0ZXJhdGlvbiBvZiBhIHJlcGVhdGVkCj4+ICAgICAgIHN0cmluZyBpbnN0cnVjdGlvbiBidXQg dGhlIGxhc3QgaXRlcmF0aW9uLCB0aGUgdmFsdWUgcHVzaGVkIGZvcgo+PiAgICAgICBSRiBpcyAx Lgo+PiAgICAg4oCiIEZvciBhbnkgdHJhcC1jbGFzcyBleGNlcHRpb24gZ2VuZXJhdGVkIGJ5IGFu eSBpdGVyYXRpb24gb2YgYQo+PiAgICAgICByZXBlYXRlZCBzdHJpbmcgaW5zdHJ1Y3Rpb24gYnV0 IHRoZSBsYXN0IGl0ZXJhdGlvbiwgdGhlIHZhbHVlCj4+ICAgICAgIHB1c2hlZCBmb3IgUkYgaXMg MS4KPiAKPiBJIHdhc24ndCBxdWl0ZSBzdXJlIHdoYXQgYSAndHJhcC1jbGFzcyBleGNlcHRpb24n IGlzLAo+IGh0dHA6Ly93d3cueWFzaGtzLmNvbS9leGNlcHRpb24tYmFzaWNzLmh0bWwgc2F5czoK PiAKPiBFeGFtcGxlOiBJTlQgMyhvciBDQyBvciBDRCAyMSkgaXMgYSB0cmFwIGluc3RydWN0aW9u LiBJZiBhIHByb2dyYW0gaGFzIHRoaXMKPiBpbnN0cnVjdGlvbiBhbmQgaWYgdGhlIGRlYnVnZ2Vy IGlzIHJ1bm5pbmcsIGl0IHdpbGwgcmV0dXJuIHRoZSBuZXh0IGluc3RydWN0aW9uCj4gYWRkcmVz cyB0byB0aGlzIGRlYnVnZ2VyLiBXaGVyZSBkZWJ1Z2dlciBjYW4gY29udGludWUgaXQgZGVidWdn aW5nLgo+IAo+IERvZXMgdGhhdCBub3QgbWVhbiB0aGF0IGlmIHdlIGNoZWNrcG9pbnQgdDEgYW5k IHQyIHdoZXJlIHQxIGlzIHB0cmFjaW5nIHQyLCB0Mgo+IG1pZ2h0IGhhdmUgUkYgc2V0IHRvIDE/ ICBTbyB0aGlzIGlzbid0IGdlbmVyYWxseSBzYWZlLCByaWdodD8KPiAKPiBJSVVDIGl0IGFsc28g Y291bGQgYmUgc2V0IGZvciB0aGluZ3MgbGlrZSBhICJHZW5lcmFsIFByb3RlY3Rpb24gRXhjZXB0 aW9uKFR5cGU6Cj4gRmF1bHQpIiBhdCBjaGVja3BvaW50IGluIHdoaWNoIGNhc2Ugd2UgY291bGQg cmVhbGx5IG1lc3MgdXAgdGhlIHN3IGF0Cj4gcmVzdGFydC4KPiAKPiBPciBtYXliZSBJJ20gdG90 YWxseSBtaXN1bmRlcnN0YW5kaW5nLi4uPwo+IAo+PiAgICAg4oCiIEZvciBvdGhlciBjYXNlcywg dGhlIHZhbHVlIHB1c2hlZCBmb3IgUkYgaXMgdGhlIHZhbHVlIHRoYXQgd2FzCj4+ICAgICAgIGlu IEVGTEFHLlJGIGF0IHRoZSB0aW1lIHRoZSBldmVudCBoYW5kbGVyIHdhcyBjYWxsZWQuCj4+ICAg Wy4uLl0KPj4KPj4gQ2FzZSAjMyBpcyBjb25zaXN0ZW50IHdpdGggdGhlIGZhY3QgdGhhdCBpbiBh bGwgY2FzZXMgd2hlcmUgd2UKPj4gb2JzZXJ2ZWQgdGhlIGlzc3VlIHRoZXJlIHdhcyBhIHNlbmRt YWlsIHByb2Nlc3MgZG9pbmcgSU8uCj4+Cj4+IENsZWFybHksIHRoZSBYODZfRUZMQUdTX1JGIGlz IHZhbGlkIHRvIGJlIHNldC4KPj4KPj4gVGhpcyBwYXRjaGVzIGZpeGVzIHRoZSByZXN0YXJ0IHRv Ogo+Pgo+PiAxKSBTaWxlbnRseSBpZ25vcmUgdGhlIFg4Nl9FRkxBR1NfUkYgaWYgd2FzIHNldCBh dCBjaGVja3BvaW50OiB0aGlzCj4+IGFsbG93cyByZXN0YXJ0IHRvIHRvbGVyYXRlIHRoZSBmbGFn IGFuZCBzYWZlbHkgY29tcGxldGUgdGhlIHJlc3RhcnQuCj4+Cj4+IDIpIFByZXNlcnZlIHRoZSBl eGlzdGluZyBYODZfRUZMQUdTX1JGIG9mIGEgcmVzdGFydGluZyB0YXNrIChpbnN0ZWFkCj4+IG9m IG92ZXJ3cml0aW5nIGl0KTogdGhpcyBlbnN1cmVzIHRoYXQgcmVzdGFydGluZyBkb2VzIG5vdCBp bnRlcmZlcmUKPj4gd2l0aCBrdm0sIGtnZGIsIGV0Yy4KPj4KPj4gU2lnbmVkLW9mZi1ieTogT3Jl biBMYWFkYW4gPG9yZW5sQGNzLmNvbHVtYmlhLmVkdT4KPj4gQ2M6IEFsZXhleSBEb2JyaXlhbiA8 YWRvYnJpeWFuQGdtYWlsLmNvbT4KPj4gQ2M6IE1hdHQgSGVsc2xleSA8bWF0dGhsdGNAdXMuaWJt LmNvbT4KPj4gQ2M6IEF2aSBLaXZpdHkgPGF2aUByZWRoYXQuY29tPgo+PiAtLS0KPj4gIGFyY2gv eDg2L21tL2NoZWNrcG9pbnQuYyB8ICAgNDAgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKystLQo+PiAgMSBmaWxlcyBjaGFuZ2VkLCAzOCBpbnNlcnRpb25zKCspLCAyIGRlbGV0 aW9ucygtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvYXJjaC94ODYvbW0vY2hlY2twb2ludC5jIGIvYXJj aC94ODYvbW0vY2hlY2twb2ludC5jCj4+IGluZGV4IDlkZDhlMTIuLmE5M2JiNmYgMTAwNjQ0Cj4+ IC0tLSBhL2FyY2gveDg2L21tL2NoZWNrcG9pbnQuYwo+PiArKysgYi9hcmNoL3g4Ni9tbS9jaGVj a3BvaW50LmMKPj4gQEAgLTI3LDEzICsyNyw0OSBAQCBzdGF0aWMgaW50IGNoZWNrX2VmbGFncyhf X3UzMiBlZmxhZ3MpCj4+ICAjZGVmaW5lIFg4Nl9FRkxBR1NfQ0tQVF9NQVNLICBcCj4+ICAJKFg4 Nl9FRkxBR1NfQ0YgfCBYODZfRUZMQUdTX1BGIHwgWDg2X0VGTEFHU19BRiB8IFg4Nl9FRkxBR1Nf WkYgfCBcCj4+ICAJIFg4Nl9FRkxBR1NfU0YgfCBYODZfRUZMQUdTX1RGIHwgWDg2X0VGTEFHU19E RiB8IFg4Nl9FRkxBR1NfT0YgfCBcCj4+IC0JIFg4Nl9FRkxBR1NfTlQgfCBYODZfRUZMQUdTX0FD IHwgWDg2X0VGTEFHU19JRCkKPj4gKwkgWDg2X0VGTEFHU19OVCB8IFg4Nl9FRkxBR1NfQUMgfCBY ODZfRUZMQUdTX0lEIHwgWDg2X0VGTEFHU19SRikKPj4gIAo+PiAgCWlmICgoZWZsYWdzICYgflg4 Nl9FRkxBR1NfQ0tQVF9NQVNLKSAhPSAoWDg2X0VGTEFHU19JRiB8IDB4MikpCj4+ICAJCXJldHVy biAwOwo+PiAgCXJldHVybiAxOwo+PiAgfQo+PiAgCj4+ICtzdGF0aWMgdm9pZCByZXN0b3JlX2Vm bGFncyhzdHJ1Y3QgcHRfcmVncyAqcmVncywgX191MzIgZWZsYWdzKQo+PiArewo+PiArCS8qCj4+ ICsJICogQSB0YXNrIG1heSBoYXZlIGhhZCBYODZfRUZMQUdTX1JGIHNldCBhdCBjaGVja3BvaW50 LCAuZS5nOgo+PiArCSAqIDEpIEl0IHJhbiBpbiBhIEtWTSBndWVzdCwgYW5kIHRoZSBndWVzdCB3 YXMgYmVpbmcgZGVidWdnZWQsCj4+ICsJICogMikgVGhlIGtlcm5lbCB3YXMgZGVidWdnZWQgdXNp bmcga2diZCwKPj4gKwkgKiAzKSBGcm9tIEludGVsJ3MgbWFudWFsOiAiV2hlbiBjYWxsaW5nIGFu IGV2ZW50IGhhbmRsZXIsIAo+PiArCSAqICAgIEludGVsIDY0IGFuZCBJQS0zMiBwcm9jZXNzb3Jz IGVzdGFibGlzaCB0aGUgdmFsdWUgb2YgdGhlCj4+ICsJICogICAgUkYgZmxhZyBpbiB0aGUgRUZM QUdTIGltYWdlIHB1c2hlZCBvbiB0aGUgc3RhY2s6Cj4+ICsJICogIC0gRm9yIGFueSBmYXVsdC1j bGFzcyBleGNlcHRpb24gZXhjZXB0IGEgZGVidWcgZXhjZXB0aW9uCj4+ICsJICogICAgZ2VuZXJh dGVkIGluIHJlc3BvbnNlIHRvIGFuIGluc3RydWN0aW9uIGJyZWFrcG9pbnQsIHRoZQo+PiArCSAq ICAgIHZhbHVlIHB1c2hlZCBmb3IgUkYgaXMgMS4KPj4gKwkgKiAgLSBGb3IgYW55IGludGVycnVw dCBhcnJpdmluZyBhZnRlciBhbnkgaXRlcmF0aW9uIG9mIGEKPj4gKwkgKiAgICByZXBlYXRlZCBz dHJpbmcgaW5zdHJ1Y3Rpb24gYnV0IHRoZSBsYXN0IGl0ZXJhdGlvbiwgdGhlCj4+ICsJICogICAg dmFsdWUgcHVzaGVkIGZvciBSRiBpcyAxLgo+PiArCSAqICAtIEZvciBhbnkgdHJhcC1jbGFzcyBl eGNlcHRpb24gZ2VuZXJhdGVkIGJ5IGFueSBpdGVyYXRpb24KPj4gKwkgKiAgICBvZiBhIHJlcGVh dGVkIHN0cmluZyBpbnN0cnVjdGlvbiBidXQgdGhlIGxhc3QgaXRlcmF0aW9uLAo+PiArCSAqICAg IHRoZSB2YWx1ZSBwdXNoZWQgZm9yIFJGIGlzIDEuCj4+ICsJICogIC0gRm9yIG90aGVyIGNhc2Vz LCB0aGUgdmFsdWUgcHVzaGVkIGZvciBSRiBpcyB0aGUgdmFsdWUKPj4gKwkgKiAgICB0aGF0IHdh cyBpbiBFRkxBRy5SRiBhdCB0aGUgdGltZSB0aGUgZXZlbnQgaGFuZGxlciB3YXMKPj4gKwkgKiAg ICBjYWxsZWQuCj4+ICsJICogIFtmcm9tOiBodHRwOi8vd3d3LmludGVsLmNvbS9Bc3NldHMvUERG L21hbnVhbC8yNTM2NjgucGRmXQo+PiArCSAqCj4+ICsJICogU286ICgxKSBzaWxlbnRseSBpZ25v cmUgWDg2X0VGTEFHU19SRiBmcm9tIGNoZWNrcG9pbnQgdGltZSwKPj4gKwkgKiBhcyBpdCdzIGly cmVsZXZhbnQgZm9yIHRoZSBjdXJyZW50IHByb2Nlc3MsICgyKSBwcmVzZXJ2ZQo+PiArCSAqIHRo ZSBleGlzdGluZyBYODZfRUZMQUdTX1JGIG9mIHRoaXMgcHJvY2VzcyBhcyBpdCBpdCBtYXkgYmUK Pj4gKwkgKiB1c2VkIGJ5IGt2bS9rZ2RiLiBEaXNhYmxlIHByZWVtcHRpb24gdG8gcHJvdGVjdCB0 ZXN0IGFuZAo+PiArCSAqIGNoYW5nZSBvZiBvdXIgZWZsYWdzLgo+PiArCSAqLwo+PiArCXByZWVt cHRfZGlzYWJsZSgpOwo+PiArCWVmbGFncyAmPSB+WDg2X0VGTEFHU19SRjsKPj4gKwllZmxhZ3Mg fD0gKHJlZ3MtPmZsYWdzICYgWDg2X0VGTEFHU19SRik7Cj4+ICsJcmVncy0+ZmxhZ3MgPSBlZmxh Z3M7Cj4+ICsJcHJlZW1wdF9lbmFibGUoKTsKPj4gK30KPj4gKwo+PiAgc3RhdGljIGludCBjaGVj a190bHMoc3RydWN0IGRlc2Nfc3RydWN0ICpkZXNjKQo+PiAgewo+PiAgCWlmICghZGVzYy0+YSAm JiAhZGVzYy0+YikKPj4gQEAgLTQzMyw3ICs0NjksNyBAQCBzdGF0aWMgaW50IGxvYWRfY3B1X3Jl Z3Moc3RydWN0IGNrcHRfaGRyX2NwdSAqaCwgc3RydWN0IHRhc2tfc3RydWN0ICp0KQo+PiAgCXJl Z3MtPm9yaWdfYXggPSBoLT5vcmlnX2F4Owo+PiAgCXJlZ3MtPmlwID0gaC0+aXA7Cj4+ICAKPj4g LQlyZWdzLT5mbGFncyA9IGgtPmZsYWdzOwo+PiArCXJlc3RvcmVfZWZsYWdzKHJlZ3MsIGgtPmZs YWdzKTsKPj4gIAlyZWdzLT5zcCA9IGgtPnNwOwo+PiAgCj4+ICAJcmVncy0+ZHMgPSBkZWNvZGVf c2VnbWVudChoLT5kcyk7Cj4+IC0tIAo+PiAxLjYuMC40Cj4+Cj4+IF9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4+IENvbnRhaW5lcnMgbWFpbGluZyBsaXN0 Cj4+IENvbnRhaW5lcnNAbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKPj4gaHR0cHM6Ly9saXN0 cy5saW51eC1mb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2NvbnRhaW5lcnMKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KQ29udGFpbmVycyBtYWls aW5nIGxpc3QKQ29udGFpbmVyc0BsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xp c3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vY29udGFpbmVycw==