From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: Re: xen-netfront crash when detaching network while some network activity Date: Tue, 26 May 2015 11:56:00 +0100 Message-ID: <55645140.1050209@citrix.com> References: <20150522114932.GC8664@mail-itl> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: netdev@vger.kernel.org, xen-devel To: =?UTF-8?B?TWFyZWsgTWFyY3p5a293c2tpLUfDs3JlY2tp?= , Konrad Rzeszutek Wilk , Boris Ostrovsky Return-path: In-Reply-To: <20150522114932.GC8664@mail-itl> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org List-Id: netdev.vger.kernel.org T24gMjIvMDUvMTUgMTI6NDksIE1hcmVrIE1hcmN6eWtvd3NraS1Hw7NyZWNraSB3cm90ZToKPiBI aSBhbGwsCj4gCj4gSSdtIGV4cGVyaWVuY2luZyB4ZW4tbmV0ZnJvbnQgY3Jhc2ggd2hlbiBkb2lu ZyB4bCBuZXR3b3JrLWRldGFjaCB3aGlsZQo+IHNvbWUgbmV0d29yayBhY3Rpdml0eSBpcyBnb2lu ZyBvbiBhdCB0aGUgc2FtZSB0aW1lLiBJdCBoYXBwZW5zIG9ubHkgd2hlbgo+IGRvbVUgaGFzIG1v cmUgdGhhbiBvbmUgdmNwdS4gTm90IHN1cmUgaWYgdGhpcyBtYXR0ZXJzLCBidXQgdGhlIGJhY2tl bmQKPiBpcyBpbiBhbm90aGVyIGRvbVUgKG5vdCBkb20wKS4gSSdtIHVzaW5nIFhlbiA0LjIuMi4g SXQgaGFwcGVucyBvbiBrZXJuZWwKPiAzLjkuNCBhbmQgNC4xLXJjMSBhcyB3ZWxsLgo+IAo+IFN0 ZXBzIHRvIHJlcHJvZHVjZToKPiAxLiBTdGFydCB0aGUgZG9tVSB3aXRoIHNvbWUgbmV0d29yayBp bnRlcmZhY2UKPiAyLiBDYWxsIHRoZXJlICdwaW5nIC1mIHNvbWUtSVAnCj4gMy4gQ2FsbCAneGwg bmV0d29yay1kZXRhY2ggTkFNRSAwJwoKVGhlcmUncyBhIHVzZS1hZnRlci1mcmVlIGluIHhlbm5l dF9yZW1vdmUoKS4gIERvZXMgdGhpcyBwYXRjaCBmaXggaXQ/Cgo4PC0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tCnhlbi1uZXRmcm9udDogcHJvcGVybHkgZGVzdHJveSBxdWV1ZXMgd2hl biByZW1vdmluZyBkZXZpY2UKCnhlbm5ldF9yZW1vdmUoKSBmcmVlZCB0aGUgcXVldWVzIGJlZm9y ZSBmcmVlaW5nIHRoZSBuZXRkZXZpY2Ugd2hpY2gKcmVzdWx0cyBpbiBhIHVzZS1hZnRlci1mcmVl IHdoZW4gZnJlZV9uZXRkZXYoKSB0cmllcyB0byBkZWxldGUgdGhlCm5hcGkgaW5zdGFuY2VzIHRo YXQgaGF2ZSBhbHJlYWR5IGJlZW4gZnJlZWQuCgpGaXggdGhpcyBieSBmdWxseSBkZXN0cm95IHRo ZSBxdWV1ZXMgKHdoaWNoIGluY2x1ZGVzIGRlbGV0aW5nIHRoZSBuYXBpCmluc3RhbmNlcykgYmVm b3JlIGZyZWVpbmcgdGhlIG5ldGRldmljZS4KClJlcG9ydGVkLWJ5OiBNYXJlayBNYXJjenlrb3dz a2kgPG1hcm1hcmVrQGludmlzaWJsZXRoaW5nc2xhYi5jb20+ClNpZ25lZC1vZmYtYnk6IERhdmlk IFZyYWJlbCA8ZGF2aWQudnJhYmVsQGNpdHJpeC5jb20+Ci0tLQogZHJpdmVycy9uZXQveGVuLW5l dGZyb250LmMgfCAgIDE1ICsrLS0tLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDIgaW5zZXJ0 aW9ucygrKSwgMTMgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9uZXQveGVuLW5l dGZyb250LmMgYi9kcml2ZXJzL25ldC94ZW4tbmV0ZnJvbnQuYwppbmRleCAzZjQ1YWZkLi5lMDMx Yzk0IDEwMDY0NAotLS0gYS9kcml2ZXJzL25ldC94ZW4tbmV0ZnJvbnQuYworKysgYi9kcml2ZXJz L25ldC94ZW4tbmV0ZnJvbnQuYwpAQCAtMTY5OCw2ICsxNjk4LDcgQEAgc3RhdGljIHZvaWQgeGVu bmV0X2Rlc3Ryb3lfcXVldWVzKHN0cnVjdCBuZXRmcm9udF9pbmZvICppbmZvKQogCiAJCWlmIChu ZXRpZl9ydW5uaW5nKGluZm8tPm5ldGRldikpCiAJCQluYXBpX2Rpc2FibGUoJnF1ZXVlLT5uYXBp KTsKKwkJZGVsX3RpbWVyX3N5bmMoJnF1ZXVlLT5yeF9yZWZpbGxfdGltZXIpOwogCQluZXRpZl9u YXBpX2RlbCgmcXVldWUtPm5hcGkpOwogCX0KIApAQCAtMjEwMiw5ICsyMTAzLDYgQEAgc3RhdGlj IGNvbnN0IHN0cnVjdCBhdHRyaWJ1dGVfZ3JvdXAgeGVubmV0X2Rldl9ncm91cCA9IHsKIHN0YXRp YyBpbnQgeGVubmV0X3JlbW92ZShzdHJ1Y3QgeGVuYnVzX2RldmljZSAqZGV2KQogewogCXN0cnVj dCBuZXRmcm9udF9pbmZvICppbmZvID0gZGV2X2dldF9kcnZkYXRhKCZkZXYtPmRldik7Ci0JdW5z aWduZWQgaW50IG51bV9xdWV1ZXMgPSBpbmZvLT5uZXRkZXYtPnJlYWxfbnVtX3R4X3F1ZXVlczsK LQlzdHJ1Y3QgbmV0ZnJvbnRfcXVldWUgKnF1ZXVlID0gTlVMTDsKLQl1bnNpZ25lZCBpbnQgaSA9 IDA7CiAKIAlkZXZfZGJnKCZkZXYtPmRldiwgIiVzXG4iLCBkZXYtPm5vZGVuYW1lKTsKIApAQCAt MjExMiwxNiArMjExMCw3IEBAIHN0YXRpYyBpbnQgeGVubmV0X3JlbW92ZShzdHJ1Y3QgeGVuYnVz X2RldmljZSAqZGV2KQogCiAJdW5yZWdpc3Rlcl9uZXRkZXYoaW5mby0+bmV0ZGV2KTsKIAotCWZv ciAoaSA9IDA7IGkgPCBudW1fcXVldWVzOyArK2kpIHsKLQkJcXVldWUgPSAmaW5mby0+cXVldWVz W2ldOwotCQlkZWxfdGltZXJfc3luYygmcXVldWUtPnJ4X3JlZmlsbF90aW1lcik7Ci0JfQotCi0J aWYgKG51bV9xdWV1ZXMpIHsKLQkJa2ZyZWUoaW5mby0+cXVldWVzKTsKLQkJaW5mby0+cXVldWVz ID0gTlVMTDsKLQl9Ci0KKwl4ZW5uZXRfZGVzdHJveV9xdWV1ZXMoaW5mbyk7CiAJeGVubmV0X2Zy ZWVfbmV0ZGV2KGluZm8tPm5ldGRldik7CiAKIAlyZXR1cm4gMDsKLS0gCjEuNy4xMC40CgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1h aWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94 ZW4tZGV2ZWwK