From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: qeustion: a panic in __do_update_va_mapping() Date: Tue, 1 Nov 2016 13:21:25 +0000 Message-ID: <7e0a476c-8cf6-57db-a0b4-54437b8d9810@citrix.com> References: <8cc61082-4d93-80f9-8ffb-e98d667347f9@citrix.com> <0c8a2f66-5cdc-eb78-7aae-de8f7aa135fa@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: "Xuquan (Quan Xu)" Cc: "George.Dunlap@eu.citrix.com" , Jan Beulich , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org T24gMDEvMTEvMTYgMTI6MDcsIFh1cXVhbiAoUXVhbiBYdSkgd3JvdGU6Cj4gT24gTm92ZW1iZXIg MDEsIDIwMTYgODowMCBQTSwgQW5kcmV3IENvb3BlciB3cm90ZToKPj4gT24gMDEvMTEvMTYgMTE6 NTcsIFh1cXVhbiAoUXVhbiBYdSkgd3JvdGU6Cj4+PiBPbiBOb3ZlbWJlciAwMSwgMjAxNiA3OjQx IFBNLCBBbmRyZXcgQ29vcGVyCj4+IDxhbmRyZXcuY29vcGVyM0BjaXRyaXguY29tID4gd3JvdGU6 Cj4+Pj4gT24gMDEvMTEvMTYgMTE6MjMsIFh1cXVhbiAoUXVhbiBYdSkgd3JvdGU6Cj4+Pj4+IE9u IE5vdmVtYmVyIDAxLCAyMDE2IDc6MTYgUE0sIEFuZHJldyBDb29wZXIgPAo+Pj4+IGFuZHJldy5j b29wZXIzQGNpdHJpeC5jb20gPiB3cm90ZToKPj4+Pj4+IE9uIDAxLzExLzE2IDExOjAxLCBYdXF1 YW4gKFF1YW4gWHUpIHdyb3RlOgo+Pj4+Pj4+IEhpIEFuZHJldywKPj4+Pj4+Pgo+Pj4+Pj4+IFdo ZW4gSSBydW4gc29tZSBhcHBsaWNhdGlvbiB3aXRoIFhlbiwgSSBlbmNvdW50ZXIgYSBQYW5pYyB3 aXRoIGxvZwo+Pj4+Pj4+IGFzIHRoZQo+Pj4+Pj4gYm90dG9tIG9mIHRoaXMgZW1haWwuCj4+Pj4+ Pj4gSSBmaW5kIHRoaXMgcGFuaWMgaXMgYXMgc2ltaWxhciBhcyB5b3VyIGZpeCBlNGU5ZDJkNGU3 NmJkOGZlMjIKPj4gJ3g4Ni9wMm0tZXB0Ogo+Pj4+Pj4gZG9uJ3QgdW5tYXAgdGhlIEVQVCBwYWdl dGFibGUgd2hpbGUgaXQgaXMgc3RpbGwgaW4gdXNlJy4KPj4+Pj4+Cj4+Pj4+PiBJdHMgbm90IHRo ZSBzYW1lLiAgTXkgZml4IHdhcyBmb3IgYSBwYWdlZmF1bHQuICBZb3VyIGNyYXNoIGlzCj4+Pj4+ PiBoaXR0aW5nIGEKPj4+Pj4+IEJVRygpCj4+Pj4+Pgo+Pj4+Pj4gWW91IG5lZWQgdG8gaW52ZXN0 aWdhdGUgd2hpY2ggQlVHKCkgaXMgYmVpbmcgaGl0ICh5b3UgYXJlIGNsZWFybHkKPj4+Pj4+IG5v dCB1c2luZyBzdGFnaW5nLCBhcyBwYWdlX2FsbG9jLmM6NDI5IGlzIG91dHNpZGUgb2YgYSBmdW5j dGlvbiksIGFuZCB3aHkuCj4+Pj4+Pgo+Pj4+PiBJdCBpcyBub3QgdXNpbmcgc3RhZ2luZywgYSBp bnRlcm5hbCB2ZXJzaW9uLCBidXQgdGhlCj4+Pj4+IF9fZG9fdXBkYXRlX3ZhX21hcHBpbmcoKSBp cwo+Pj4+IHRoZSBzYW1lLi4KPj4+Pj4gU28gSSB0aGluayBpdCBpcyBzaW1pbGFyIHRvIHN0YWdp bmcuCj4+Pj4gX19kb191cGRhdGVfdmFfbWFwcGluZygpIGlzIG5vdCByZWxldmFudC4gIFlvdXIg cHJvYmxlbSBpcyBpbgo+Pj4+IGFsbG9jX2hlYXBfcGFnZXMoKSwgbm90IF9fZG9fdXBkYXRlX3Zh X21hcHBpbmcoKS4KPj4+Pgo+Pj4gQW5kcmV3LCB0aGFua3MgZm9yIHlvdXIgaGVscC4uCj4+Pgo+ Pj4gQ2hlY2sgaXQsCj4+PiB0aGUgQlVHKCkgaXMgZnJvbQo+Pj4gZG9fbWVtb3J5X29wKCkgLS0g YWxsb2NfZG9taGVhcF9wYWdlcygpIC0tIGFsbG9jX2hlYXBfcGFnZXMoKS4uCj4+PiAsIG5vdCBm cm9tICBfX2RvX3VwZGF0ZV92YV9tYXBwaW5nKCkuCj4+Pgo+Pj4gSWYgc28sIEkgdGhpbmsgdGhl IGluZm9ybWF0aW9uIGlzIHRvbyBsaW1pdGVkIHRvIGRlYnVnLi4KPj4+Cj4+PiB0aGUgQlVHKCkg aXMgYmVpbmcgaGl0IGF0Ogo+Pj4gLi4uCj4+PiBhbGxvY19oZWFwX3BhZ2VzKCkKPj4+ICAgICBm b3IgKCBpID0gMDsgaSA8ICgxIDw8IG9yZGVyKTsgaSsrICkKPj4+ICAgICB7Cj4+PiAgICAgICAg IC8qIFJlZmVyZW5jZSBjb3VudCBtdXN0IGNvbnRpbnVvdXNseSBiZSB6ZXJvIGZvciBmcmVlIHBh Z2VzLiAqLwo+Pj4gICAgICAgICBCVUdfT04ocGdbaV0uY291bnRfaW5mbyAhPSBQR0Nfc3RhdGVf ZnJlZSk7IC4uLgo+Pj4KPj4+Cj4+PiBJIGd1ZXNzIEkgaGl0IGEgJ2NvdW50X2luZm8gPT0gLTEn LCBtb3JlIHB1dF9wYWdlKCkgaXMgY2FsbGVkIHRvIHJldHVybiB0aGUgcGFnZS4uCj4+IFllcy4g IFRoaXMgbWVhbnMgdGhhdCB5b3UgaGF2ZSBhIHJlZmVyZW5jZSBjb3VudGluZyBlcnJvciBlbHNl d2hlcmUgaW4KPj4gdGhlIGh5cGVydmlzb3IsIGFuZCBzb21ldGhpbmcgaXMgZHJvcHBpbmcgdG9v IG1hbnkgcmVmZXJlbmNlcy4KPj4KPiA6KDooLi4KPiBBbnkgbWV0aG9kIHRvIGFkZHJlc3MgaXQ/ CgpOb3Qgc3BlY2lmaWNhbGx5LiAgSXQgaXMgc2ltaWxhciB0byBjaGFzaW5nIGEgZG91YmxlIGZy ZWUgYnVnLgoKWW91IHNob3VsZCByZXZpZXcgd2hhdGV2ZXIgbG9jYWwgYWRkaXRpb25zIHlvdSBo YXZlIGluIHlvdXIgdHJlZSBleHRyYQpjYXJlZnVsbHkuICBJdCBtaWdodCBiZSB0aGF0IHRoZXJl IGlzIGEgc2V0dXAgcGF0aCB3aGljaCBkb2Vzbid0IHRha2UgYQpyZWYsIG9yIGEgYnVnZ3kgZXJy b3IgcGF0aCB3aGljaCBjbGVhbnMgdXAgdG9vIG1hbnkgcmVmcy4KCn5BbmRyZXcKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5n IGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1k ZXZlbAo=