From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A30357F67 for ; Wed, 8 Apr 2015 16:14:58 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1FB4AAC001 for ; Wed, 8 Apr 2015 14:14:57 -0700 (PDT) Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 90uYtT8WhnqXidgL for ; Wed, 08 Apr 2015 14:14:52 -0700 (PDT) Date: Thu, 9 Apr 2015 07:14:36 +1000 From: Dave Chinner Subject: Re: =?utf-8?B?5Zue5aSN?= =?utf-8?B?77ya?= XFS direct IO problem Message-ID: <20150408211436.GF15810@dastard> References: <20150408044955.GE15810@dastard> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: YeYin Cc: xfs T24gV2VkLCBBcHIgMDgsIDIwMTUgYXQgMDM6MDU6NTdQTSArMDgwMCwgWWVZaW4gd3JvdGU6Cj4g RGF2ZSwKPiBUaGFuayB5b3UgZm9yIHlvdXIgZXhwbGFuYXRpb24uIEkgZ290IHRoZSByZWFzb24s IGFuZCBJIHdyaXRlIHNvbWUgY29kZSB0byAgc2ltdWxhdGUgdGhlIE15U1FMLkl0IHdpbGwgcmVw cm9kdWNlIHRoZSBwcm9ncmVzczrigI0KPiAKPiAKPiBvcGVuIGZpbGUgd2l0aG91dCBkaXJlY3Qg ZmxhZwo+IHJlYWQgZmlsZSAgIC8vY2F1c2Uga2VybmVsIHJlYWRhaGVhZCA0IHBhZ2VzLCBhbmQg aW5vZGUtPmlfbWFwcGluZy0+bnJwYWdlcyA+IDAKPiBjbG9zZSBmaWxlCj4gCj4gCj4gb3BlbiBm aWxlIHdpdGggZGlyZWN0IGZsYWcKPiBsc2VlayA0KjQwOTYgLy8gc2tpcCA0IHJlYWRhaGVhZCBw YWdlcwo+IHJlYWQgIGZpbGUgLy9jYXVzZSB4ZnNfZmx1c2hpbnZhbF9wYWdlcyB0byBkbyBub3Ro aW5nCj4gLi4uCj4gCgpZZXMsIHlvdSBjYW4gY2F1c2UgaXQgdGhhdCB3YXksIGJ1dCBhbnkgYXBw bGljYXRpb24gbWl4aW5nIGJ1ZmZlcmVkCklPIGFuZCBkaXJlY3QgSU8gbGlrZSB0aGF0IGlzIGJy b2tlbi4gIEknbGwgcG9pbnQgeW91IGF0IHRoZSBvcGVuKDIpCm1hbiBwYWdlLCBpbiB0aGUgc2Vj dGlvbiBhYm91dCBPX0RJUkVDVDoKCgkiQXBwbGljYXRpb25zIHNob3VsZCBhdm9pZCBtaXhpbmcg T19ESVJFQ1QgYW5kIG5vcm1hbCBJL08gdG8KCXRoZSBzYW1lIGZpbGUsIGFuZCBlc3BlY2lhbGx5 IHRvIG92ZXJsYXBwaW5nIGJ5dGUgcmVnaW9ucyBpbgoJdGhlICBzYW1lIGZpbGUuICAgRXZlbiAg d2hlbiAgdGhlIGZpbGVzeXN0ZW0gY29ycmVjdGx5CgloYW5kbGVzIHRoZSBjb2hlcmVuY3kgaXNz dWVzIGluIHRoaXMgc2l0dWF0aW9uLCBvdmVyYWxsIEkvTwoJdGhyb3VnaHB1dCBpcyBsaWtlbHkg dG8gYmUgc2xvd2VyIHRoYW4gdXNpbmcgZWl0aGVyIG1vZGUKCWFsb25lLiAgTGlrZXdpc2UsIGFw cGxpY2F0aW9ucyBzaG91bGQgYXZvaWQgbWl4aW5nIG1tYXAoMikKCW9mIGZpbGVzIHdpdGggZGly ZWN0IEkvTyB0byB0aGUgc2FtZSBmaWxlcy4iCgpJT1dzLCB5b3VyIHRlc3QgcHJvZ3JhbSBpcyBi ZWhhdmluZyBhcyBkb2N1bWVudGVkIGZvciBhIHByb2dyYW0KdGhhdCBtaXhlcyBidWZmZXJlZCBh bmQgZGlyZWN0IElPLi4uLgoKQUZBSUssIE15U1FMIGRvZXMgbm90IGRvICBtaXhlZCBidWZmZXIv ZGlyZWN0IElPIGxpa2UgdGhpcyBhbmQgc28KdGhpcyBpcyBleHRyZW1lbHkgdW5saWtlbHkgdG8g YmUgdGhlIHNvdXJjZSBvZiB0aGUgcHJvYmxlbS4gIEkgbmVlZAp0byB1bmRlcnN0YW5kIGhvdyBN eVNRTCBpcyBnZW5lcmF0aW5nIGNhY2hlZCBwYWdlcyBvbiBpdCdzIGRhdGFiYXNlCmZpbGVzIHdo ZW4gaXQgaXMgc3VwcG9zZWQgdG8gYmUgdXNpbmcgZGlyZWN0IElPLCBhbmQgdGhlIHJlcHJvZHVj ZXIKcHJvZ3JhbSBuZWVkcyB0byBkbyB3aGF0IE15U1FMIGRvZXMgdG8gZ2VuZXJhdGUgY2FjaGVk IHBhZ2VzLgoKQ2FuIHlvdSBwbGVhc2UgZmluZCB0aGUgbG9jYXRpb24gb2YgdGhlIGNhY2hlZCBw YWdlcyAoYXMgSQpzdWdnZ2VzdGVkIHZpYSB0cmFjaW5nIGluIG15IGxhc3QgZW1haWwpIGluIHRo ZSBNeVNRTCBmaWxlcyB0aGF0IGFyZQpjYXVzaW5nIHRoZSBwcm9ibGVtPwoKPiBJJ2QgbGlrZSB0 byBhc2sgWEZTIGhvdyB0byByZXNvdmxlIHRoaXMgcHJvYmxlbT8KCkFwcGxpY2F0aW9ucyB0aGF0 IG5lZWQgdG8gbWl4IGJ1ZmZlcmVkIGFuZCBkaXJlY3QgSU8gY2FuIGludmFsaWRhdGUKdGhlIGNh Y2hlZCBwYWdlcyBieSB1c2luZyBQT1NJWF9GQURWX0RPTlRORUVEIGJlZm9yZSBkb2luZyBkaXJl Y3QKSU8uCgpGV0lXLCBZb3UgbXVzdCBiZSBsb29raW5nIGF0IHF1aXRlIG9sZCBrZXJuZWwgY29k ZSBpZgp4ZnNfZmx1c2hpbnZhbF9wYWdlcygpIGV4aXN0cyBpbiB5b3VyIGtlcm5lbC4gRG9lcyBN eVNRTCBvbiBhCmN1cnJlbnQgdXBzdHJlYW0ga2VybmVsIGhhdmUgdGhlIHNhbWUgcHJvYmxlbT8K CkNoZWVycywKCkRhdmUuCi0tIApEYXZlIENoaW5uZXIKZGF2aWRAZnJvbW9yYml0LmNvbQoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KeGZzIG1haWxpbmcg bGlzdAp4ZnNAb3NzLnNnaS5jb20KaHR0cDovL29zcy5zZ2kuY29tL21haWxtYW4vbGlzdGluZm8v eGZzCg==