From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [V2] x86: mce: fix kernel panic when check_interval is changed From: Seunghun Han Message-Id: <20180228203131.3176-1-kkamagui@gmail.com> Date: Thu, 1 Mar 2018 05:31:31 +0900 To: Tony Luck , Borislav Petkov Cc: linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Seunghun Han List-ID: SSBhbSBTZXVuZ2h1biBIYW4gYW5kIGEgc2VuaW9yIHNlY3VyaXR5IHJlc2VhcmNoZXIgYXQgTmF0 aW9uYWwgU2VjdXJpdHkKUmVzZWFyY2ggSW5zdGl0dXRlIG9mIFNvdXRoIEtvcmVhLgoKSSBmb3Vu ZCBhIHNlY3VyaXR5IGlzc3VlIHdoaWNoIGNhbiBtYWtlIGtlcm5lbCBwYW5pYyBpbiB1c2Vyc3Bh Y2UuIEFmdGVyCmFuYWx5emluZyB0aGUgaXNzdWUgY2FyZWZ1bGx5LCBJIGZvdW5kIHRoYXQgTUNF IGRyaXZlciBpbiB0aGUga2VybmVsIGhhcyBhCnByb2JsZW0gd2hpY2ggY2FuIGJlIG9jY3VycmVk IGluIFNNUCBlbnZpcm9ubWVudC4KClRoZSBjaGVja19pbnRlcnZhbCBmaWxlIGluCi9zeXMvZGV2 aWNlcy9zeXN0ZW0vbWFjaGluZWNoZWNrL21hY2hpbmVjaGVjazxjcHUgbnVtYmVyPiBkaXJlY3Rv cnkgaXMgYQpnbG9iYWwgdGltZXIgdmFsdWUgZm9yIE1DRSBwb2xsaW5nLiBJZiBpdCBpcyBjaGFu Z2VkIGJ5IG9uZSBDUFUsIE1DRSBkcml2ZXIKaW4ga2VybmVsIGNhbGxzIG1jZV9yZXN0YXJ0KCkg ZnVuY3Rpb24gYW5kIGJyb2FkY2FzdHMgdGhlIGV2ZW50IHRvIG90aGVyCkNQVXMgdG8gZGVsZXRl IGFuZCByZXN0YXJ0IE1DRSBwb2xsaW5nIHRpbWVyLgoKVGhlIF9fbWNoZWNrX2NwdV9pbml0X3Rp bWVyKCkgZnVuY3Rpb24gd2hpY2ggaXMgY2FsbGVkIGJ5IG1jZV9yZXN0YXJ0KCkKZnVuY3Rpb24g aW5pdGlhbGl6ZXMgdGhlIG1jZV90aW1lciB2YXJpYWJsZSwgYW5kIHRoZSAibG9jayIgaW4gbWNl X3RpbWVyIGlzCmFsc28gcmVpbml0aWFsaXplZC4gSWYgbW9yZSB0aGFuIG9uZSBDUFUgd3JpdGUg YSBzcGVjaWZpYyB2YWx1ZSB0bwpjaGVja19pbnRlcnZhbCBmaWxlIGNvbmN1cnJlbnRseSwgb25l IGNhbiBpbml0aWFsaXplIHRoZSAibG9jayIgaW4gbWNlX3RpbWVyCndoaWxlIHRoZSBvdGhlcnMg YXJlIGhhbmRsaW5nICJsb2NrIiBpbiBtY2VfdGltZXIuIFRoaXMgcHJvYmxlbSBjYXVzZXMgc29t ZQpzeW5jaHJvbml6YXRpb24gZXJyb3JzIHN1Y2ggYXMga2VybmVsIHBhbmljIGFuZCBrZXJuZWwg aGFuZy4KCkl0IGlzIGEgc2VjdXJpdHkgcHJvYmxlbSBiZWNhdXNlIHRoZSBhdHRhY2tlciBjYW4g bWFrZSBrZXJuZWwgcGFuaWMgYnkKd3JpdGluZyBhIHZhbHVlIHRvIHRoZSBjaGVja19pbnRlcnZh bCBmaWxlIGluIHVzZXJzcGFjZSwgYW5kIGl0IGNhbiBiZSB1c2VkCmZvciBEZW5pYWwtb2YtU2Vy dmljZSAoRG9TKSBhdHRhY2suCgpUbyBmaXggdGhpcyBwcm9ibGVtLCBJIGFkZGVkIGEgbWNlX3N5 c2ZzX211dGV4IHRvIHNlcmlhbGl6ZSByZXF1ZXN0cy4KClNpZ25lZC1vZmYtYnk6IFNldW5naHVu IEhhbiA8a2thbWFndWlAZ21haWwuY29tPgotLS0KQ2hhbmdlcyBzaW5jZSB2MTogYWRkIG1jZV9z eXNmc19tdXRleCBhY2NvcmRpbmcgdG8gcmV2aWV3IHJlc3VsdC4KCiBhcmNoL3g4Ni9rZXJuZWwv Y3B1L21jaGVjay9tY2UuYyB8IDEyICsrKysrKysrKysrLQogMSBmaWxlIGNoYW5nZWQsIDExIGlu c2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1naXQgYS9hcmNoL3g4Ni9rZXJuZWwv Y3B1L21jaGVjay9tY2UuYyBiL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZS5jCmluZGV4 IDcwNjU4NDY4MWE0Yy4uYmVlMDc5NWEzYjhjIDEwMDY0NAotLS0gYS9hcmNoL3g4Ni9rZXJuZWwv Y3B1L21jaGVjay9tY2UuYworKysgYi9hcmNoL3g4Ni9rZXJuZWwvY3B1L21jaGVjay9tY2UuYwpA QCAtNTUsNiArNTUsNyBAQAogI2luY2x1ZGUgIm1jZS1pbnRlcm5hbC5oIgogCiBzdGF0aWMgREVG SU5FX01VVEVYKG1jZV9sb2dfbXV0ZXgpOworc3RhdGljIERFRklORV9NVVRFWChtY2Vfc3lzZnNf bXV0ZXgpOwogCiAjZGVmaW5lIENSRUFURV9UUkFDRV9QT0lOVFMKICNpbmNsdWRlIDx0cmFjZS9l dmVudHMvbWNlLmg+CkBAIC0yMDQ1LDggKzIwNDYsMTEgQEAgc3RhdGljIHZvaWQgbWNlX2VuYWJs ZV9jZSh2b2lkICphbGwpCiAJCXJldHVybjsKIAljbWNpX3JlZW5hYmxlKCk7CiAJY21jaV9yZWNo ZWNrKCk7Ci0JaWYgKGFsbCkKKwlpZiAoYWxsKSB7CisJCW11dGV4X2xvY2soJm1jZV9zeXNmc19t dXRleCk7CiAJCV9fbWNoZWNrX2NwdV9pbml0X3RpbWVyKCk7CisJCW11dGV4X3VubG9jaygmbWNl X3N5c2ZzX211dGV4KTsKKwl9CiB9CiAKIHN0YXRpYyBzdHJ1Y3QgYnVzX3R5cGUgbWNlX3N1YnN5 cyA9IHsKQEAgLTIxMzIsOCArMjEzNiwxNCBAQCBzdGF0aWMgc3NpemVfdCBzdG9yZV9pbnRfd2l0 aF9yZXN0YXJ0KHN0cnVjdCBkZXZpY2UgKnMsCiAJCQkJICAgICAgc3RydWN0IGRldmljZV9hdHRy aWJ1dGUgKmF0dHIsCiAJCQkJICAgICAgY29uc3QgY2hhciAqYnVmLCBzaXplX3Qgc2l6ZSkKIHsK Kwl1bnNpZ25lZCBsb25nIG9sZF9jaGVja19pbnRlcnZhbCA9IGNoZWNrX2ludGVydmFsOwogCXNz aXplX3QgcmV0ID0gZGV2aWNlX3N0b3JlX2ludChzLCBhdHRyLCBidWYsIHNpemUpOworCisJaWYg KGNoZWNrX2ludGVydmFsID09IG9sZF9jaGVja19pbnRlcnZhbCkKKwkJcmV0dXJuIHJldDsKKwlt dXRleF9sb2NrKCZtY2Vfc3lzZnNfbXV0ZXgpOwogCW1jZV9yZXN0YXJ0KCk7CisJbXV0ZXhfdW5s b2NrKCZtY2Vfc3lzZnNfbXV0ZXgpOwogCXJldHVybiByZXQ7CiB9CiAK