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 195CF7CCD for ; Tue, 31 May 2016 07:14:09 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E00A0304048 for ; Tue, 31 May 2016 05:14:08 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UH5RGwGY8NOcFMPI (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 31 May 2016 05:14:07 -0700 (PDT) Date: Tue, 31 May 2016 14:14:02 +0200 From: Carlos Maiolino Subject: Re: XFS: possible memory allocation deadlock in kmem_alloc Message-ID: <20160531121402.GA15274@redhat.com> References: <20160530050452.GM26977@dastard> <9BD371B3-8A44-481C-B9E4-381BAE0B6B79@gmail.com> <20160531031010.GB12670@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: xfs@oss.sgi.com Cc: baotiao@gmail.com T24gVHVlLCBNYXkgMzEsIDIwMTYgYXQgMDc6MDA6MjJQTSArMDgwMCwg6ZmI5a6X5b+XIHdyb3Rl Ogo+ICAgIGNhbiB3ZSBjaGFuZ2UgdGhlIGV4aXN0aW5nIGZpbGUncyBleHRlbnQgc2l6ZT8KPiAK Tm8sIHlvdSBjYW4gb25seSBzZXQgZXh0ZW50IGhpbnQgc2l6ZSBmb3IgZW1wdHkgZmlsZXMsIG9y LCBtb3JlIHByZWNpc2VseSBmb3IKZmlsZXMgd2hvc2UgZG9lcyBub3QgaGF2ZSBhbGxvY2F0ZWQg ZXh0ZW50cwoKPiAgICBPbiBUdWUsIE1heSAzMSwgMjAxNiBhdCAxMToxMCBBTSwgRGF2ZSBDaGlu bmVyIDxbMV1kYXZpZEBmcm9tb3JiaXQuY29tPgo+ICAgIHdyb3RlOgo+IAo+ICAgICAgT24gVHVl LCBNYXkgMzEsIDIwMTYgYXQgMTA6NDM6MzZBTSArMDgwMCwg6ZmI5a6X5b+XIHdyb3RlOgo+ICAg ICAgPiBJIGhhdmUgZmludCB0aGUgd2F5IHRvIGNoYW5nZSB0aGUgZXh0ZW50IHNpemUgaGludAo+ ICAgICAgPiBta2ZzLnhmcyAtciBleHRzaXplPTQwOTYwIC9kZXYvc2RhMQo+ICAgICAgQWgsIG5v LCB0aGF0IGlzbid0IHRoZSBleHRzaXplIEknbSByZWZlcmluZyB0by4gVGhhdCdzIGZvciByZWFs dGltZQo+ICAgICAgZGV2aWNlIGNvbmZpZ3VyYXRpb24gYXQgbWtmcywgbm90IGEgcGVyLWlub2Rl IGV4dGVudCBzaXplIGhpbnQuCj4gICAgICBXaGVuIHlvdSBjcmVhdGUgdGhlIGltYWdlIGZpbGUg ZG8gdGhpczoKPiAgICAgICQgeGZzX2lvIC1mIC1jICJleHRzaXplIDFtIiAvcGF0aC90by9uZXcv dm1faW1hZ2UKPiAgICAgICQgcWVtdS1pbWFnZSBjcmVhdGUgLWYgcWNvdzIgL3BhdGgvdG8vbmV3 L3ZtX2ltYWdlIDEwZwo+ICAgICAgJCB4ZnNfaW8gLWMgZXh0c2l6ZSAvcGF0aC90by9uZXcvdm1f aW1hZ2UKPiAgICAgIFsxMDQ4NTc2XSAvcGF0aC90by9uZXcvdm1faW1hZ2UKPiAgICAgICQKPiAg ICAgIEFuZCBub3cgdGhlIHFjb3cyIGltYWdlIGZpbGUgd2lsbCBoYXZlIGV4dGVudHMgYWxsb2Nh dGVkIGluCj4gICAgICBtdWx0aXBsZXMgb2YgMU1CLgo+IAo+ICAgIENoZWVycywKPiAgICBEYXZl Lgo+ICAgIC0tCj4gICAgRGF2ZSBDaGlubmVyCj4gICAgWzJdZGF2aWRAZnJvbW9yYml0LmNvbQo+ IAo+ICAgIC0tCj4gICAgLS0tCj4gICAgQmxvZzogWzNdaHR0cDovL3d3dy5jaGVuem9uZ3poaS5p bmZvCj4gICAgVHdpdHRlcjogWzRdaHR0cHM6Ly90d2l0dGVyLmNvbS9iYW90aWFvCj4gICAgR2l0 OiBbNV1odHRwczovL2dpdGh1Yi5jb20vYmFvdGlhbwo+IAo+IFJlZmVyZW5jZXMKPiAKPiAgICAx LiBtYWlsdG86ZGF2aWRAZnJvbW9yYml0LmNvbQo+ICAgIDIuIG1haWx0bzpkYXZpZEBmcm9tb3Ji aXQuY29tCj4gICAgMy4gaHR0cDovL3d3dy5jaGVuem9uZ3poaS5pbmZvLwo+ICAgIDQuIGh0dHBz Oi8vdHdpdHRlci5jb20vIyEvYmFvdGlhbwo+ICAgIDUuIGh0dHBzOi8vZ2l0aHViLmNvbS9iYW90 aWFvCgo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4g eGZzIG1haWxpbmcgbGlzdAo+IHhmc0Bvc3Muc2dpLmNvbQo+IGh0dHA6Ly9vc3Muc2dpLmNvbS9t YWlsbWFuL2xpc3RpbmZvL3hmcwoKCi0tIApDYXJsb3MKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCnhmcyBtYWlsaW5nIGxpc3QKeGZzQG9zcy5zZ2kuY29t Cmh0dHA6Ly9vc3Muc2dpLmNvbS9tYWlsbWFuL2xpc3RpbmZvL3hmcwo=