From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: [BUG] xs.watch and xs.unwatch are unreliable Date: Thu, 3 Mar 2016 18:57:45 +0000 Message-ID: <20160303185745.GM5535@citrix.com> References: <834E88AE-F08A-415F-8C24-D4FDEFEB01B3@gmail.com> <56D86A90.9080002@citrix.com> <20160303170228.GA8132@citrix.com> <56D871E7.4010906@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <56D871E7.4010906@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: David Vrabel Cc: Sergei Lebedev , Wei Liu , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org T24gVGh1LCBNYXIgMDMsIDIwMTYgYXQgMDU6MTg6MzFQTSArMDAwMCwgRGF2aWQgVnJhYmVsIHdy b3RlOgo+IE9uIDAzLzAzLzE2IDE3OjAyLCBXZWkgTGl1IHdyb3RlOgo+ID4gT24gVGh1LCBNYXIg MDMsIDIwMTYgYXQgMDQ6NDc6MTJQTSArMDAwMCwgRGF2aWQgVnJhYmVsIHdyb3RlOgo+ID4+IE9u IDAxLzAzLzE2IDIwOjE3LCBTZXJnZWkgTGViZWRldiB3cm90ZToKPiA+Pj4gSGkgbGlzdCwKPiA+ Pj4KPiA+Pj4gSeKAmXZlIGluaXRpYWxseSB3YW50ZWQgdG8gcmVwb3J0IGFub3RoZXIgaW5jb25z aXN0ZW5jeSBpbgo+ID4+PiBgYHhlbi5sb3dsZXZlbC54c2BgIGRvY3VtZW50YXRpb24sIGJ1dCB0 aGlzIHRpbWUgdGhlIGlzc3VlIGlzIG1vcmUKPiA+Pj4gc3VidGxlLgo+ID4+Cj4gPj4gWy4uLl0K PiA+Pgo+ID4+PiBIZXJl4oCZcyBhbm90aGVyIGV4YW1wbGUgd2l0aCBhIHN0cmluZyB0b2tlbgo+ ID4+Pgo+ID4+PiAgICAgPj4+IHRva2VuMSA9IHN0cigxMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDApCj4gPj4+ICAgICA+Pj4gdG9rZW4yID0gc3RyKDEwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMCkKPiA+Pj4gICAgID4+PiB0b2tlbjEgPT0gdG9rZW4yCj4gPj4+ICAgICBUcnVlCj4g Pj4+ICAgICA+Pj4gaC53YXRjaCgiQGludHJvZHVjZURvbWFpbiIsIHRva2VuMSkKPiA+Pj4gICAg ID4+PiBoLnVud2F0Y2goIkBpbnRyb2R1Y2VEb21haW4iLCB0b2tlbjIpCj4gPj4+ICAgICBUcmFj ZWJhY2sgKG1vc3QgcmVjZW50IGNhbGwgbGFzdCk6Cj4gPj4+ICAgICAgIEZpbGUgIjxzdGRpbj4i LCBsaW5lIDEsIGluIDxtb2R1bGU+Cj4gPj4+ICAgICB4ZW4ubG93bGV2ZWwueHMuRXJyb3I6ICgy LCAnTm8gc3VjaCBmaWxlIG9yIGRpcmVjdG9yeeKAmSkKPiA+Pj4KPiA+Pj4gSeKAmW0gbm90IHN1 cmUgd2hhdCB3b3VsZCBiZSB0aGUgYmVzdCB3YXkgdG8gaGFuZGxlIHRoaXMgYXMgdGhlcmUgbWln aHQKPiA+Pj4gYmUgZXhpc3RpbmcgY29kZSByZWx5aW5nIG9uIHRoaXMgdW5kb2N1bWVudGVkIGJl aGF2aW91ci4gV2hhdCBkbyB5b3UKPiA+Pj4gdGhpbms/Cj4gPj4KPiA+PiBJIHRoaW5rIHlvdSdy ZSBzdHVjayB3aXRoIHRoaXMgYmVoYXZpb3VyLiAgSWYgeW91IGZpeCBpdCB0aGVyZSdzIGEgcmlz awo+ID4+IG9mIGJyZWFraW5nIGV4aXN0aW5nIGFwcGxpY2F0aW9ucyBieSB1bndhdGNoIHJlbW92 aW5nIHRoZSB3cm9uZyB3YXRjaC4KPiA+Pgo+ID4gCj4gPiBJJ20gbm90IHN1cmUgSSBmb2xsb3cg dGhpcy4gRG8geW91IGhhdmUgYW4gZXhhbXBsZSB3aHkgaXQgd291bGQgcmVtb3ZlCj4gPiB0aGUg d3Jvbmcgd2F0Y2g/Cj4gCj4gICB0b2tlbjEgPSBzdHIoMTAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwKQo+ICAgdG9rZW4yID0gc3RyKDEwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMCkK PiAKPiAgIGgud2F0Y2goInBhdGgiLCB0b2tlbjEpCj4gICBoLndhdGNoKCJwYXRoIiwgdG9rZW4y KQo+IAo+IENyZWF0ZWQgdHdvIHVuaXF1ZSB0b2tlbnMuCj4gCj4gICBoLnVud2F0Y2goInBhdGgi LCB0b2tlbjEpCj4gCj4gV2hpY2ggd2F0Y2ggc2hvdWxkIGJlIHJlbW92ZWQgaWYgdG9rZW4xIGFu ZCB0b2tlbjIgbm8gbG9uZ2VyIGhhdmUgYQo+IHVuaXF1ZSB0b2tlbj8gIEFsdGhvdWdoLCBJJ20g bm90IHN1cmUgb2YgdGhlIGJlaGF2aW91ciBvZiBhZGRpbmcgdHdvCj4gd2F0Y2hlcyB3aXRoIHRo ZSBzYW1lIHRva2VuLgo+IAoKUmlnaHQuIEkgYWxzbyBoYXZlIG5vIGlkZWEgd2hhdCB0aGUgYmVo YXZpb3VyIHNob3VsZCBiZS4uLgoKQnV0IGdpdmVuIHRoZSBpbmNhcm5hdGlvbiBvZiB0aGUgYmlu ZGluZywgdXNlciB3b3VsZCBleHBlY3QgaXQgdG8gYmVoYXZlCnRoZSBzYW1lIGFzIHRoZSB1bmRl cmx5aW5nIEMgQVBJLiBQeXRob24gYmluZGluZyBpcyBub3QgcmVzcG9uc2libGUgZm9yCmNvdmVy aW5nIHVwIHRoZSB1bmRlZmluZWQgYmVoYXZpb3VyLgoKQW5kIGEgc2lkZSBub3RlIGlzIHRoYXQg dGhlIGJpbmRpbmdzIG9mIHhzX3dhdGNoIGFuZCB4c191bndhdGNoIGNhbiBvbmx5CmJlIHVzZWQg c2FmZWx5IGluIHZlcnkgcmVzdHJpY3RlZCB3YXkuIFRoYXQgaXMsIHVzZXIgbmVlZHMgdG8gc3Rh c2ggdGhlCmV4YWN0IHRva2VuIG9iamVjdCBzb21ld2hlcmUsIHdoaWNoIGlzIG5vdCBpbXBvc3Np YmxlLCBidXQgYWxzbyB2ZXJ5CmluY29udmVuaWVudC4KCkxldCdzIGVpdGhlciBkb2N1bWVudCB0 aGlzIGJlaGF2aW91ciBvciBjaGFuZ2UgaXQuIEkgZG9uJ3QgaGF2ZQpwcmVmZXJlbmNlIGhlcmUu Cgo+IEl0IGFsc28gb2NjdXJzIHRvIG1lIHRoYXQgaWYgdGhpcyBhcmVhIGlzIGdvaW5nIHRvIGJl IGltcHJvdmVkLCBpdAo+IHNob3VsZCBiZSB0aGUga2VybmVsIHRoYXQgcHJvdmlkZXMgdGhlIHRv a2VuIHNpbmNlIGl0IGhhcyB0byBiZSB1bmlxdWUKPiBhY3Jvc3MgYWxsIHVzZXJzLgo+IAoKVGhp cyB3b3VsZCBiZSBnb29kLgoKV2VpLgoKPiBEYXZpZAoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxA bGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK