From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5C83C7F80 for ; Wed, 11 Nov 2015 10:19:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4AA5B304032 for ; Wed, 11 Nov 2015 08:19:55 -0800 (PST) Received: from mail-lb0-f177.google.com (mail-lb0-f177.google.com [209.85.217.177]) by cuda.sgi.com with ESMTP id 6FMJMRH4tgiRhFjA (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 08:19:48 -0800 (PST) Received: by lbbkw15 with SMTP id kw15so19645836lbb.0 for ; Wed, 11 Nov 2015 08:19:47 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= Subject: Re: memory reclaim problems on fs usage Date: Wed, 11 Nov 2015 17:19:42 +0100 References: <201511102313.36685.arekm@maven.pl> <5643658B.9090206@I-love.SAKURA.ne.jp> In-Reply-To: <5643658B.9090206@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Message-Id: <201511111719.44035.arekm@maven.pl> 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: Tetsuo Handa Cc: linux-mm@kvack.org, xfs@oss.sgi.com T24gV2VkbmVzZGF5IDExIG9mIE5vdmVtYmVyIDIwMTUsIFRldHN1byBIYW5kYSB3cm90ZToKPiBP biAyMDE1LzExLzExIDc6MTMsIEFya2FkaXVzeiBNacWba2lld2ljeiB3cm90ZToKPiA+IFRoZSB1 c3VhbCAocmVwZWF0YWJsZSkgcHJvYmxlbSBpcyBsaWtlIHRoaXM6Cj4gPiAKPiA+IGZ1bGwgZG1l c2c6IGh0dHA6Ly9zcHJ1bmdlLnVzL1ZFaUUgKG1vcmUgaW4gaXQgdGhlbiBpbiBwYXJ0aWFsIGxv ZyBiZWxvdykKPiAKPiBNYXliZSBzb21lYm9keSBkb2luZyBHRlBfTk9JTyBhbGxvY2F0aW9uIHdo aWNoIFhGUyBkcml2ZXIgZG9pbmcgR0ZQX05PRlMKPiBhbGxvY2F0aW9uIGlzIHdhaXRpbmcgZm9y IGlzIHN0YWxsaW5nIGluc2lkZSBtZW1vcnkgYWxsb2NhdG9yLiBJIHRoaW5rIHRoYXQKPiBjaGVj a2luZyB0YXNrcyB3aGljaCBhcmUgc3RhbGxpbmcgaW5zaWRlIG1lbW9yeSBhbGxvY2F0b3Igd291 bGQgaGVscC4KPiAKPiBQbGVhc2UgdHJ5IHJlcHJvZHVjaW5nIHRoaXMgcHJvYmxlbSB3aXRoIGEg ZGVidWcgcHJpbnRrKCkgcGF0Y2ggc2hvd24gYmVsb3cKPiBhcHBsaWVkLiBUaGlzIGlzIGEgcGF0 Y2ggd2hpY2ggSSB1c2VkIGZvciBkZWJ1Z2dpbmcgc2lsZW50IGxvY2t1cCBwcm9ibGVtLgo+IFdo ZW4gbWVtb3J5IGFsbG9jYXRpb24gZ290IHN0dWNrLCBsaW5lcyB3aXRoIE1lbUFsbG9jIGtleXdv cmQgd2lsbCBiZQo+IHByaW50ZWQuCj4gCj4gLS0tCj4gICBmcy94ZnMva21lbS5jICAgICAgICAg IHwgIDEwICsrLQo+ICAgZnMveGZzL3hmc19idWYuYyAgICAgICB8ICAgMyArLQo+ICAgaW5jbHVk ZS9saW51eC9tbXpvbmUuaCB8ICAgMSArCj4gICBpbmNsdWRlL2xpbnV4L3Ztc3RhdC5oIHwgICAx ICsKPiAgIG1tL3BhZ2VfYWxsb2MuYyAgICAgICAgfCAyMTcKPiArKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrIG1tL3Ztc2Nhbi5jICAgICAgICAgICAgfAo+ ICAyMiArKysrKwo+ICAgNiBmaWxlcyBjaGFuZ2VkLCAyNDkgaW5zZXJ0aW9ucygrKSwgNSBkZWxl dGlvbnMoLSkKClRoaXMgcGF0Y2ggaXMgYWdhaW5zdCB3aGljaCB0cmVlPyAodHJpZWQgNC4xLCA0 LjIgYW5kIDQuMykKCi0tIApBcmthZGl1c3ogTWnFm2tpZXdpY3osIGFyZWttIC8gKCBtYXZlbi5w bCB8IHBsZC1saW51eC5vcmcgKQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KeGZzIG1haWxpbmcgbGlzdAp4ZnNAb3NzLnNnaS5jb20KaHR0cDovL29zcy5z Z2kuY29tL21haWxtYW4vbGlzdGluZm8veGZzCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-f172.google.com (mail-lb0-f172.google.com [209.85.217.172]) by kanga.kvack.org (Postfix) with ESMTP id 16FF76B0254 for ; Wed, 11 Nov 2015 11:19:49 -0500 (EST) Received: by lbblt2 with SMTP id lt2so19631433lbb.3 for ; Wed, 11 Nov 2015 08:19:48 -0800 (PST) Received: from mail-lb0-x235.google.com (mail-lb0-x235.google.com. [2a00:1450:4010:c04::235]) by mx.google.com with ESMTPS id pq8si6561002lbc.132.2015.11.11.08.19.47 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Nov 2015 08:19:47 -0800 (PST) Received: by lbblt2 with SMTP id lt2so19631054lbb.3 for ; Wed, 11 Nov 2015 08:19:47 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= Subject: Re: memory reclaim problems on fs usage Date: Wed, 11 Nov 2015 17:19:42 +0100 References: <201511102313.36685.arekm@maven.pl> <5643658B.9090206@I-love.SAKURA.ne.jp> In-Reply-To: <5643658B.9090206@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511111719.44035.arekm@maven.pl> Sender: owner-linux-mm@kvack.org List-ID: To: Tetsuo Handa Cc: linux-mm@kvack.org, xfs@oss.sgi.com On Wednesday 11 of November 2015, Tetsuo Handa wrote: > On 2015/11/11 7:13, Arkadiusz Mi=C5=9Bkiewicz wrote: > > The usual (repeatable) problem is like this: > >=20 > > full dmesg: http://sprunge.us/VEiE (more in it then in partial log belo= w) >=20 > Maybe somebody doing GFP_NOIO allocation which XFS driver doing GFP_NOFS > allocation is waiting for is stalling inside memory allocator. I think th= at > checking tasks which are stalling inside memory allocator would help. >=20 > Please try reproducing this problem with a debug printk() patch shown bel= ow > applied. This is a patch which I used for debugging silent lockup problem. > When memory allocation got stuck, lines with MemAlloc keyword will be > printed. >=20 > --- > fs/xfs/kmem.c | 10 ++- > fs/xfs/xfs_buf.c | 3 +- > include/linux/mmzone.h | 1 + > include/linux/vmstat.h | 1 + > mm/page_alloc.c | 217 > +++++++++++++++++++++++++++++++++++++++++++++++++ mm/vmscan.c | > 22 +++++ > 6 files changed, 249 insertions(+), 5 deletions(-) This patch is against which tree? (tried 4.1, 4.2 and 4.3) =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org