From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Sandeen Subject: Re: How to run xfstests against multipath disks on SuSE? Date: Tue, 27 Nov 2012 11:08:30 -0600 Message-ID: <50B4F38E.8060806@redhat.com> References: <20121126145559.GK31891@thunk.org> <20121127031438.GK6434@dastard> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Ryan Wang , "Theodore Ts'o" , =?UTF-8?B?THVrw6HFoSBDemVybmVy?= , linux-ext4@vger.kernel.org, xfs@oss.sgi.com To: Dave Chinner Return-path: Received: from mx1.redhat.com ([209.132.183.28]:29132 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751086Ab2K0RIs (ORCPT ); Tue, 27 Nov 2012 12:08:48 -0500 In-Reply-To: <20121127031438.GK6434@dastard> Sender: linux-ext4-owner@vger.kernel.org List-ID: On 11/26/12 9:14 PM, Dave Chinner wrote: > On Tue, Nov 27, 2012 at 09:20:47AM +0800, Ryan Wang wrote: >> 2012/11/26 Theodore Ts'o : >>> On Mon, Nov 26, 2012 at 02:43:40PM +0100, Luk=C3=A1=C5=A1 Czerner w= rote: >>>>> The I checked the script common.rc, and found that it uses >>>>> df to determine the filesystem type and it uses the realpath >>>>> "/dev/dm-0" instead of "/dev/mapper/mpatha", while df always >>>>> shows "devtmpfs" instead of "ext4" for /dev/dm-0. >>>>> >>>>> I run "mount" and found that devtmpfs is mount on /dev/ on opensu= se >>>>> ***by default***. Even though I run "mount -t btrfs /dev/dm-0 /s= omedir", >>>>> df still showed devtmpfs. >>>>> >>>>> Any ideas to kick off the xfstests? >>> >>> At least with the df which ships with Debian Testing, df will displ= ay >>> the file system in use if it matches the device name which is >>> /etc/mtab. It looks the issue is that mount is canonicalizing the >>> device name to be the human friendly version: >>> >>> # ls -l /dev/mapper/closure-bigscratch >>> 0 lrwxrwxrwx 1 root root 7 Nov 16 15:15 /dev/mapper/closure-bigscra= tch -> ../dm-7 >>> {/home/tytso/bin}, level 2 >>> # mount /dev/dm-7 /u2 >>> # df /u2 >>> Filesystem 1K-blocks Used Available Use% Moun= ted on >>> /dev/mapper/closure-bigscratch 52403200 224772 52178428 1% /u2 >>> # grep /u2 /etc/mtab >>> /dev/mapper/closure-bigscratch /u2 xfs rw,relatime,attr2,inode64,no= quota 0 0 >>> >>> So the simplest solution is to just use /dev/mapper/mpatha instead = of >>> insisting on using /dev/dm-0. That's what I do.... >> >> In xfstests/common.rc, it will use realpath to obtain /dev/dm-0, eve= n if you >> specified /dev/mapper/mpatha. >> My problem is in SuSE, the devtmpfs is mounted on /dev by default, s= eems >> used by udev. And df reports devtmpfs on /dev/dm-0, instead of ext4. >=20 > What version of xfstests are you using? Do you have a > "README.device-mapper" file in the base directory? If not, upgrade > to the latest version and retry. >=20 > $ gl -n 1 -p 0a81886 > commit 0a818862bb74932e15971ec8bedb55765ec3a3f6 > Author: Christoph Hellwig > Date: Wed May 4 16:28:32 2011 +0200 >=20 > xfstests: support post-udev device mapper nodes >=20 > Because of udevs complaining device mapper now creates /dev/dm-N = as the real > device nodes, and just symlinks the /dev/mapper/ names to it. Th= is would be > easy if everything used the /dev/mapper clear names, but most sys= tem utilities > translate them back to the /dev/mapper/ names and thus confuse va= rious test > cases. Add support to _is_block_dev to read symlinks, and add do= cumentation > on how to run xfstests on device mapper volumes. >=20 > Signed-off-by: Christoph Hellwig > Reviewed-by: Alex Elder >=20 > Cheers, >=20 > Dave. >=20 Recent "realpath" changes also went in: b03c662399956609934ff063e9064e15dc7459ac xfstests: fix to build src/rea= lpath and the correct the existence of target devices d5ea873fcbf00b841f0511a26fb341364a5c6425 xfstests: resolve symlinked de= vices to real paths so either of those could have broken and/or fixed it for you :) -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id qARH6VRl069313 for ; Tue, 27 Nov 2012 11:06:31 -0600 Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6XIeS1A5kJfbvqO4 for ; Tue, 27 Nov 2012 09:08:47 -0800 (PST) Message-ID: <50B4F38E.8060806@redhat.com> Date: Tue, 27 Nov 2012 11:08:30 -0600 From: Eric Sandeen MIME-Version: 1.0 Subject: Re: How to run xfstests against multipath disks on SuSE? References: <20121126145559.GK31891@thunk.org> <20121127031438.GK6434@dastard> In-Reply-To: <20121127031438.GK6434@dastard> 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 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Dave Chinner Cc: =?UTF-8?B?THVrw6HFoSBDemVybmVy?= , Ryan Wang , linux-ext4@vger.kernel.org, Theodore Ts'o , xfs@oss.sgi.com T24gMTEvMjYvMTIgOToxNCBQTSwgRGF2ZSBDaGlubmVyIHdyb3RlOgo+IE9uIFR1ZSwgTm92IDI3 LCAyMDEyIGF0IDA5OjIwOjQ3QU0gKzA4MDAsIFJ5YW4gV2FuZyB3cm90ZToKPj4gMjAxMi8xMS8y NiBUaGVvZG9yZSBUcydvIDx0eXRzb0BtaXQuZWR1PjoKPj4+IE9uIE1vbiwgTm92IDI2LCAyMDEy IGF0IDAyOjQzOjQwUE0gKzAxMDAsIEx1a8OhxaEgQ3plcm5lciB3cm90ZToKPj4+Pj4gVGhlIEkg Y2hlY2tlZCB0aGUgc2NyaXB0IGNvbW1vbi5yYywgYW5kIGZvdW5kIHRoYXQgaXQgdXNlcwo+Pj4+ PiBkZiB0byBkZXRlcm1pbmUgdGhlIGZpbGVzeXN0ZW0gdHlwZSBhbmQgaXQgdXNlcyB0aGUgcmVh bHBhdGgKPj4+Pj4gIi9kZXYvZG0tMCIgaW5zdGVhZCBvZiAiL2Rldi9tYXBwZXIvbXBhdGhhIiwg d2hpbGUgZGYgYWx3YXlzCj4+Pj4+IHNob3dzICJkZXZ0bXBmcyIgaW5zdGVhZCBvZiAiZXh0NCIg Zm9yIC9kZXYvZG0tMC4KPj4+Pj4KPj4+Pj4gSSBydW4gIm1vdW50IiBhbmQgZm91bmQgdGhhdCBk ZXZ0bXBmcyBpcyBtb3VudCBvbiAvZGV2LyBvbiBvcGVuc3VzZQo+Pj4+PiAqKipieSBkZWZhdWx0 KioqLiBFdmVuIHRob3VnaCAgSSBydW4gIm1vdW50IC10IGJ0cmZzIC9kZXYvZG0tMCAvc29tZWRp ciIsCj4+Pj4+IGRmIHN0aWxsIHNob3dlZCBkZXZ0bXBmcy4KPj4+Pj4KPj4+Pj4gQW55IGlkZWFz IHRvIGtpY2sgb2ZmIHRoZSB4ZnN0ZXN0cz8KPj4+Cj4+PiBBdCBsZWFzdCB3aXRoIHRoZSBkZiB3 aGljaCBzaGlwcyB3aXRoIERlYmlhbiBUZXN0aW5nLCBkZiB3aWxsIGRpc3BsYXkKPj4+IHRoZSBm aWxlIHN5c3RlbSBpbiB1c2UgaWYgaXQgbWF0Y2hlcyB0aGUgZGV2aWNlIG5hbWUgd2hpY2ggaXMK Pj4+IC9ldGMvbXRhYi4gIEl0IGxvb2tzIHRoZSBpc3N1ZSBpcyB0aGF0IG1vdW50IGlzIGNhbm9u aWNhbGl6aW5nIHRoZQo+Pj4gZGV2aWNlIG5hbWUgdG8gYmUgdGhlIGh1bWFuIGZyaWVuZGx5IHZl cnNpb246Cj4+Pgo+Pj4gIyBscyAtbCAvZGV2L21hcHBlci9jbG9zdXJlLWJpZ3NjcmF0Y2gKPj4+ IDAgbHJ3eHJ3eHJ3eCAxIHJvb3Qgcm9vdCA3IE5vdiAxNiAxNToxNSAvZGV2L21hcHBlci9jbG9z dXJlLWJpZ3NjcmF0Y2ggLT4gLi4vZG0tNwo+Pj4gPHR5dHNvLnJvb3RAY2xvc3VyZT4gey9ob21l L3R5dHNvL2Jpbn0sIGxldmVsIDIKPj4+ICMgbW91bnQgL2Rldi9kbS03IC91Mgo+Pj4gIyBkZiAv dTIKPj4+IEZpbGVzeXN0ZW0gICAgICAgICAgICAgICAgICAgICAxSy1ibG9ja3MgICBVc2VkIEF2 YWlsYWJsZSBVc2UlIE1vdW50ZWQgb24KPj4+IC9kZXYvbWFwcGVyL2Nsb3N1cmUtYmlnc2NyYXRj aCAgNTI0MDMyMDAgMjI0NzcyICA1MjE3ODQyOCAgIDElIC91Mgo+Pj4gIyBncmVwIC91MiAvZXRj L210YWIKPj4+IC9kZXYvbWFwcGVyL2Nsb3N1cmUtYmlnc2NyYXRjaCAvdTIgeGZzIHJ3LHJlbGF0 aW1lLGF0dHIyLGlub2RlNjQsbm9xdW90YSAwIDAKPj4+Cj4+PiBTbyB0aGUgc2ltcGxlc3Qgc29s dXRpb24gaXMgdG8ganVzdCB1c2UgL2Rldi9tYXBwZXIvbXBhdGhhIGluc3RlYWQgb2YKPj4+IGlu c2lzdGluZyBvbiB1c2luZyAvZGV2L2RtLTAuICBUaGF0J3Mgd2hhdCBJIGRvLi4uLgo+Pgo+PiBJ biB4ZnN0ZXN0cy9jb21tb24ucmMsIGl0IHdpbGwgdXNlIHJlYWxwYXRoIHRvIG9idGFpbiAvZGV2 L2RtLTAsIGV2ZW4gaWYgeW91Cj4+IHNwZWNpZmllZCAvZGV2L21hcHBlci9tcGF0aGEuCj4+IE15 IHByb2JsZW0gaXMgaW4gU3VTRSwgdGhlIGRldnRtcGZzIGlzIG1vdW50ZWQgb24gL2RldiBieSBk ZWZhdWx0LCBzZWVtcwo+PiB1c2VkIGJ5IHVkZXYuIEFuZCBkZiByZXBvcnRzIGRldnRtcGZzIG9u IC9kZXYvZG0tMCwgaW5zdGVhZCBvZiBleHQ0Lgo+IAo+IFdoYXQgdmVyc2lvbiBvZiB4ZnN0ZXN0 cyBhcmUgeW91IHVzaW5nPyBEbyB5b3UgaGF2ZSBhCj4gIlJFQURNRS5kZXZpY2UtbWFwcGVyIiBm aWxlIGluIHRoZSBiYXNlIGRpcmVjdG9yeT8gSWYgbm90LCB1cGdyYWRlCj4gdG8gdGhlIGxhdGVz dCB2ZXJzaW9uIGFuZCByZXRyeS4KPiAKPiAkIGdsIC1uIDEgLXAgMGE4MTg4Ngo+IGNvbW1pdCAw YTgxODg2MmJiNzQ5MzJlMTU5NzFlYzhiZWRiNTU3NjVlYzNhM2Y2Cj4gQXV0aG9yOiBDaHJpc3Rv cGggSGVsbHdpZyA8aGNoQGxzdC5kZT4KPiBEYXRlOiAgIFdlZCBNYXkgNCAxNjoyODozMiAyMDEx ICswMjAwCj4gCj4gICAgIHhmc3Rlc3RzOiBzdXBwb3J0IHBvc3QtdWRldiBkZXZpY2UgbWFwcGVy IG5vZGVzCj4gCj4gICAgIEJlY2F1c2Ugb2YgdWRldnMgY29tcGxhaW5pbmcgZGV2aWNlIG1hcHBl ciBub3cgY3JlYXRlcyAvZGV2L2RtLU4gYXMgdGhlIHJlYWwKPiAgICAgZGV2aWNlIG5vZGVzLCBh bmQganVzdCBzeW1saW5rcyB0aGUgL2Rldi9tYXBwZXIvIG5hbWVzIHRvIGl0LiAgVGhpcyB3b3Vs ZCBiZQo+ICAgICBlYXN5IGlmIGV2ZXJ5dGhpbmcgdXNlZCB0aGUgL2Rldi9tYXBwZXIgY2xlYXIg bmFtZXMsIGJ1dCBtb3N0IHN5c3RlbSB1dGlsaXRpZXMKPiAgICAgdHJhbnNsYXRlIHRoZW0gYmFj ayB0byB0aGUgL2Rldi9tYXBwZXIvIG5hbWVzIGFuZCB0aHVzIGNvbmZ1c2UgdmFyaW91cyB0ZXN0 Cj4gICAgIGNhc2VzLiAgQWRkIHN1cHBvcnQgdG8gX2lzX2Jsb2NrX2RldiB0byByZWFkIHN5bWxp bmtzLCBhbmQgYWRkIGRvY3VtZW50YXRpb24KPiAgICAgb24gaG93IHRvIHJ1biB4ZnN0ZXN0cyBv biBkZXZpY2UgbWFwcGVyIHZvbHVtZXMuCj4gCj4gICAgIFNpZ25lZC1vZmYtYnk6IENocmlzdG9w aCBIZWxsd2lnIDxoY2hAbHN0LmRlPgo+ICAgICBSZXZpZXdlZC1ieTogQWxleCBFbGRlciA8YWVs ZGVyQHNnaS5jb20+Cj4gCj4gQ2hlZXJzLAo+IAo+IERhdmUuCj4gCgpSZWNlbnQgInJlYWxwYXRo IiBjaGFuZ2VzIGFsc28gd2VudCBpbjoKCmIwM2M2NjIzOTk5NTY2MDk5MzRmZjA2M2U5MDY0ZTE1 ZGM3NDU5YWMgeGZzdGVzdHM6IGZpeCB0byBidWlsZCBzcmMvcmVhbHBhdGggYW5kIHRoZSBjb3Jy ZWN0IHRoZSBleGlzdGVuY2Ugb2YgdGFyZ2V0IGRldmljZXMKZDVlYTg3M2ZjYmYwMGI4NDFmMDUx MWEyNmZiMzQxMzY0YTVjNjQyNSB4ZnN0ZXN0czogcmVzb2x2ZSBzeW1saW5rZWQgZGV2aWNlcyB0 byByZWFsIHBhdGhzCgpzbyBlaXRoZXIgb2YgdGhvc2UgY291bGQgaGF2ZSBicm9rZW4gYW5kL29y IGZpeGVkIGl0IGZvciB5b3UgOikKCi1FcmljCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwp4ZnMgbWFpbGluZyBsaXN0Cnhmc0Bvc3Muc2dpLmNvbQpodHRw Oi8vb3NzLnNnaS5jb20vbWFpbG1hbi9saXN0aW5mby94ZnMK