From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: and again: broken RAID5 Date: Thu, 10 May 2012 19:20:16 +1000 Message-ID: <20120510192016.49cb9003@notabene.brown> References: <4FAB7739.9000907@cgv.tugraz.at> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <4FAB7739.9000907@cgv.tugraz.at> Sender: linux-raid-owner@vger.kernel.org To: Lars Schimmer Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids LS0tLS1CRUdJTiBQR1AgU0lHTkVEIE1FU1NBR0UtLS0tLQ0KSGFzaDogU0hBMQ0KDQpPbiBUaHUs IDEwIE1heSAyMDEyIDEwOjA3OjIxICswMjAwIExhcnMgU2NoaW1tZXIgPGwuc2NoaW1tZXJAY2d2 LnR1Z3Jhei5hdD4NCndyb3RlOg0KDQo+IC0tLS0tQkVHSU4gUEdQIFNJR05FRCBNRVNTQUdFLS0t LS0NCj4gSGFzaDogU0hBMQ0KPiANCj4gSGkhDQo+IA0KPiANCj4gDQo+IEkganVzdCB3YW50IHNv bWUgdGlwcyBvbiBob3d0byBnZXQgdHdvIGJyb2tlbiByYWlkNSBydW5uaW5nIGFnYWluLg0KPiAN Cj4gSXQgY29udGFpbnMgb2YgNCBkcml2ZXMsIG9uZSB3YXMgdGhyb3duIG91dCBvbiBzYXR1cmRh eSBldmVuaW5nLCBhbmQNCj4gdGhlIHNlY29uZCBkcml2ZSB0aHJldyByZWFkL3dyaXRlIGVycm9y cyBiZWZvcmUgSSBjb3VsZCByZXBsYWNlIHRoZQ0KPiBmaXJzdCBvbmUuDQo+IA0KPiBOb3cgSSBn b3QgYWxsIGZvdXIgZHJpdmVzIHJ1bm5pbmcgYWdhaW4sIGxvb2tzIGxpa2Ugc29tZQ0KPiBjb250 cm9sbGVyL2NhYmxlIHByb2JsZW0uIENoYW5nZWQgdGhlbS4NCj4gDQo+IEJ1dCBtZGFkbSB0ZWxs cyBtZSwgb25seSAyIG9mIDQgYXJlIGF2YWlsYWJsZSBhbmQgY291bGQgbm90IHN0YXJ0IHJhaWQ6 DQo+IA0KPiBtZDIgOiBpbmFjdGl2ZSBzZGgyWzBdKFMpIHNkaTJbNF0oUykgc2RmMls2XShTKSBz ZGoyWzVdKFMpDQo+IDQyNTE3NzAxNDQgYmxvY2tzIHN1cGVyIDEuMg0KPiANCj4gbWQxIDogaW5h Y3RpdmUgc2RoMVswXShTKSBzZGkxWzRdKFMpIHNkZjFbNl0oUykgc2RqMVs1XShTKQ0KPiAyMDk3 MTQ3OTA0IGJsb2NrcyBzdXBlciAxLjINCj4gDQo+IG1kYWRtIC1FIHRlbGxzIG1lIGUuZy4gZm9y IG1kMToNCj4gDQo+IC9kZXYvc2RoMToNCj4gTWFnaWMgOiBhOTJiNGVmYw0KPiBWZXJzaW9uIDog MS4yDQo+IEZlYXR1cmUgTWFwIDogMHgwDQo+IEFycmF5IFVVSUQgOiBhNTAzY2VhOTplYjYxM2Ri MTpjODkwOTIzMzpmZDU0MTVjZQ0KPiBOYW1lIDogZGViaWFuOjEgIChsb2NhbCB0byBob3N0IGRl YmlhbikNCj4gQ3JlYXRpb24gVGltZSA6IFNhdCBGZWIgMTEgMTM6Mzk6NDYgMjAxMg0KPiBSYWlk IExldmVsIDogcmFpZDUgICAgUmFpZCBEZXZpY2VzIDogNA0KPiBBdmFpbCBEZXYgU2l6ZSA6IDEw NDg1NzM5NTIgKDUwMC4wMCBHaUIgNTM2Ljg3IEdCKQ0KPiBBcnJheSBTaXplIDogMzE0NTcyMDMy MCAoMTUwMC4wMCBHaUIgMTYxMC42MSBHQikNCj4gVXNlZCBEZXYgU2l6ZSA6IDEwNDg1NzM0NDAg KDUwMC4wMCBHaUIgNTM2Ljg3IEdCKQ0KPiBEYXRhIE9mZnNldCA6IDIwNDggc2VjdG9ycw0KPiBT dXBlciBPZmZzZXQgOiA4IHNlY3RvcnMNCj4gU3RhdGUgOiBjbGVhbg0KPiBEZXZpY2UgVVVJRCA6 IDcxMGEyOTI2OjY0MGJjNjc1OjdiNWZlMzA4Ojg2MWQxODgzDQo+IFVwZGF0ZSBUaW1lIDogU3Vu IE1heSAgNiAxMzo1NzoyMiAyMDEyDQo+IENoZWNrc3VtIDogZTM4N2U3NDggLSBjb3JyZWN0DQo+ IEV2ZW50cyA6IDIwNjI4Ng0KPiBMYXlvdXQgOiBsZWZ0LXN5bW1ldHJpYw0KPiBDaHVuayBTaXpl IDogMTI4Sw0KPiBEZXZpY2UgUm9sZSA6IEFjdGl2ZSBkZXZpY2UgMA0KPiBBcnJheSBTdGF0ZSA6 IEFBLi4gKCdBJyA9PSBhY3RpdmUsICcuJyA9PSBtaXNzaW5nKQ0KPiANCj4gL2Rldi9zZGYxOg0K PiBNYWdpYyA6IGE5MmI0ZWZjDQo+IFZlcnNpb24gOiAxLjINCj4gRmVhdHVyZSBNYXAgOiAweDAN Cj4gQXJyYXkgVVVJRCA6IGE1MDNjZWE5OmViNjEzZGIxOmM4OTA5MjMzOmZkNTQxNWNlDQo+IE5h bWUgOiBkZWJpYW46MSAgKGxvY2FsIHRvIGhvc3QgZGViaWFuKQ0KPiBDcmVhdGlvbiBUaW1lIDog U2F0IEZlYiAxMSAxMzozOTo0NiAyMDEyDQo+IFJhaWQgTGV2ZWwgOiByYWlkNQ0KPiBSYWlkIERl dmljZXMgOiA0DQo+IEF2YWlsIERldiBTaXplIDogMTA0ODU3Mzk1MiAoNTAwLjAwIEdpQiA1MzYu ODcgR0IpDQo+IEFycmF5IFNpemUgOiAzMTQ1NzIwMzIwICgxNTAwLjAwIEdpQiAxNjEwLjYxIEdC KQ0KPiBVc2VkIERldiBTaXplIDogMTA0ODU3MzQ0MCAoNTAwLjAwIEdpQiA1MzYuODcgR0IpDQo+ IERhdGEgT2Zmc2V0IDogMjA0OCBzZWN0b3JzDQo+IFN1cGVyIE9mZnNldCA6IDggc2VjdG9ycw0K PiBTdGF0ZSA6IGNsZWFuDQo+IERldmljZSBVVUlEIDogZjUzYjA5N2M6OTc2MmYyYTQ6ZjJhZjkw MTE6M2ZhN2NlZDcNCj4gVXBkYXRlIFRpbWUgOiBTdW4gTWF5ICA2IDEzOjM4OjI2IDIwMTINCj4g Q2hlY2tzdW0gOiBjNWY3NDViZCAtIGNvcnJlY3QNCj4gRXZlbnRzIDogMjA2MjczDQo+IExheW91 dCA6IGxlZnQtc3ltbWV0cmljDQo+IENodW5rIFNpemUgOiAxMjhLDQo+IERldmljZSBSb2xlIDog QWN0aXZlIGRldmljZSAyDQo+IEFycmF5IFN0YXRlIDogQUFBLiAoJ0EnID09IGFjdGl2ZSwgJy4n ID09IG1pc3NpbmcpDQo+IA0KPiAvZGV2L3NkaTE6DQo+IE1hZ2ljIDogYTkyYjRlZmMNCj4gVmVy c2lvbiA6IDEuMg0KPiBGZWF0dXJlIE1hcCA6IDB4MA0KPiBBcnJheSBVVUlEIDogYTUwM2NlYTk6 ZWI2MTNkYjE6Yzg5MDkyMzM6ZmQ1NDE1Y2UNCj4gTmFtZSA6IGRlYmlhbjoxICAobG9jYWwgdG8g aG9zdCBkZWJpYW4pDQo+IENyZWF0aW9uIFRpbWUgOiBTYXQgRmViIDExIDEzOjM5OjQ2IDIwMTIN Cj4gUmFpZCBMZXZlbCA6IHJhaWQ1DQo+IFJhaWQgRGV2aWNlcyA6IDQNCj4gQXZhaWwgRGV2IFNp emUgOiAxMDQ4NTczOTUyICg1MDAuMDAgR2lCIDUzNi44NyBHQikNCj4gQXJyYXkgU2l6ZSA6IDMx NDU3MjAzMjAgKDE1MDAuMDAgR2lCIDE2MTAuNjEgR0IpDQo+IFVzZWQgRGV2IFNpemUgOiAxMDQ4 NTczNDQwICg1MDAuMDAgR2lCIDUzNi44NyBHQikNCj4gRGF0YSBPZmZzZXQgOiAyMDQ4IHNlY3Rv cnMNCj4gU3VwZXIgT2Zmc2V0IDogOCBzZWN0b3JzDQo+IFN0YXRlIDogY2xlYW4NCj4gRGV2aWNl IFVVSUQgOiA3OWViNWMwYzpkYjczZTJmODoyMWQ5YjdmODo5NzkzNmRhNA0KPiBVcGRhdGUgVGlt ZSA6IFN1biBNYXkgIDYgMDE6MzI6MzUgMjAxMg0KPiBDaGVja3N1bSA6IDVkZmY0ZTJhIC0gY29y cmVjdA0KPiBFdmVudHMgOiAxOTcxMTQNCj4gTGF5b3V0IDogbGVmdC1zeW1tZXRyaWMNCj4gQ2h1 bmsgU2l6ZSA6IDEyOEsNCj4gRGV2aWNlIFJvbGUgOiBBY3RpdmUgZGV2aWNlIDMNCj4gQXJyYXkg U3RhdGUgOiBBQUFBICgnQScgPT0gYWN0aXZlLCAnLicgPT0gbWlzc2luZykNCj4gDQo+IC9kZXYv c2RqMToNCj4gTWFnaWMgOiBhOTJiNGVmYw0KPiBWZXJzaW9uIDogMS4yDQo+IEZlYXR1cmUgTWFw IDogMHgwDQo+IEFycmF5IFVVSUQgOiBhNTAzY2VhOTplYjYxM2RiMTpjODkwOTIzMzpmZDU0MTVj ZQ0KPiBOYW1lIDogZGViaWFuOjEgIChsb2NhbCB0byBob3N0IGRlYmlhbikNCj4gQ3JlYXRpb24g VGltZSA6IFNhdCBGZWIgMTEgMTM6Mzk6NDYgMjAxMg0KPiBSYWlkIExldmVsIDogcmFpZDUNCj4g UmFpZCBEZXZpY2VzIDogNA0KPiBBdmFpbCBEZXYgU2l6ZSA6IDEwNDg1NzM5NTIgKDUwMC4wMCBH aUIgNTM2Ljg3IEdCKQ0KPiBBcnJheSBTaXplIDogMzE0NTcyMDMyMCAoMTUwMC4wMCBHaUIgMTYx MC42MSBHQikNCj4gVXNlZCBEZXYgU2l6ZSA6IDEwNDg1NzM0NDAgKDUwMC4wMCBHaUIgNTM2Ljg3 IEdCKQ0KPiBEYXRhIE9mZnNldCA6IDIwNDggc2VjdG9ycw0KPiBTdXBlciBPZmZzZXQgOiA4IHNl Y3RvcnMNCj4gU3RhdGUgOiBjbGVhbg0KPiBEZXZpY2UgVVVJRCA6IGU4MDU1YmNhOjBmM2M5YjU0 OjQyMWJjMmMyOjRhNzIzNTliDQo+IFVwZGF0ZSBUaW1lIDogU3VuIE1heSAgNiAxMzo1NzoyMiAy MDEyDQo+IENoZWNrc3VtIDogMzg4YjIzZmMgLSBjb3JyZWN0DQo+IEV2ZW50cyA6IDIwNjI4Ng0K PiBMYXlvdXQgOiBsZWZ0LXN5bW1ldHJpYw0KPiBDaHVuayBTaXplIDogMTI4Sw0KPiBEZXZpY2Ug Um9sZSA6IEFjdGl2ZSBkZXZpY2UgMQ0KPiBBcnJheSBTdGF0ZSA6IEFBLi4gKCdBJyA9PSBhY3Rp dmUsICcuJyA9PSBtaXNzaW5nKQ0KPiANCj4gDQo+IFNvIGFsbCA0IGRpc2tzIHNlZSBzb21lIGRp ZmYgc3RhdGUuIEFueSBjaGFuY2Ugb24gZ2V0dGluZyByYWlkNQ0KPiBydW5uaW5nIGFnYWluIGFu ZCByZWFkIHNvbWUgZGF0YSBmcm9tIGl0Pw0KPiANCj4gRG9lcyB0aGUgbWRhZG0gLUMgLS1hc3N1 bWUtY2xlYW4gb3B0aW9uIGhlbHAgbWUgaW4gdGhhdCBjYXNlIGFueWhvdz8NCg0KSnVzdCBhZGQg LS1mb3JjZSB0aGUgdG8gLS1hc3NlbWJsZSBjb21tYW5kLg0KDQpOZWlsQnJvd24NCg0KLS0tLS1C RUdJTiBQR1AgU0lHTkFUVVJFLS0tLS0NClZlcnNpb246IEdudVBHIHYyLjAuMTggKEdOVS9MaW51 eCkNCg0KaVFJVkF3VUJUNnVJVURuc250MVdZb0c1QVFMWXh4QUF2RVBFdUhYbkM0ZkI1QlFKbnpW RkZyRnd3STZLNnJlMg0KWG1qS3IzWG5Oamx1VUNidFhnR0FpNjFxdGk4MnJZbjVaREtyYllITzQ3 Y1NKNTFFM1JRck9PdjB2N3UzUEJ4Kw0KdjZnQWtEVUFlcjY4T1pXbTZTeHhiLy8vM1Yxam9hbmlk RW1WZHBQbnRjYjNrTno0cEx1b2xHVHlLVnptZVd3ZQ0KdTBnZ09MOXlxSU9nQ0hOQXI1MFJpWVAx dnNNNlFPaFhMNGY2OTYyWmVuUTN2ZEFxS1ppQWhaNzNmcXVlZUhZaQ0KVXFTMkIxdEhhdW8wQ1hD RlFyUTJPTHc5Z3RURHAxUjQ2d2svYnhaSUpNT0Mvcm45djV1OC9HZmtKRDVuWWdObQ0KckttRHEw QWUrT1lwRHNWZnM5dU9WOGw5WHdxN0V6ZzNOdlZJSzVEdWI1ckZoTVNhTlR4K2hIc0dLdkI0RGtS Lw0KSVg3L0hKd0hsQlFlcHRQQ1hiSnZkUXNieDFZRmp5ckZJUjRIRUVQYlBuZGJncjR3TmVzZzJ4 YjZwYkRvZzJZeg0KczJHYW52MjI5WktMMHFPVE5kRkprWmU4dVQwVlR5UUZiK1JGVXhSekZCM2ZT ZGM4dkpvQnFDd2RSWXRzWW05MA0KYjk2clI3aE1Mc3cvNVkwamdqN0FHUDBYZXowN000S3FmV3pp NGJXR1dYU0JaYXJRZmZnbit6dEJVSFNmcGVIbg0KcXVWb05KL3dwSEhPeFZIcGthS3VCREh3c0cy cERGcmpIYmVyTkYyeDJsSFplREswZDA3aWoxS3RiVkw5NTY0Yw0KSG9oNlR6clA4OXZMUVlTcWxW U2ZGR0lFMXc4YzhaQ1ZmU3Y2VDY3NGczNERaemxVOFBMY05VSUFQZk0xWUFLYg0KcGc4dkxwcDJa VkE9DQo9VEZHSg0KLS0tLS1FTkQgUEdQIFNJR05BVFVSRS0tLS0tDQo=