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 55CF67F59 for ; Tue, 23 Jun 2015 15:19:01 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D99A2AC002 for ; Tue, 23 Jun 2015 13:18:57 -0700 (PDT) Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id 0fCHfiSR65aDD1sB for ; Tue, 23 Jun 2015 13:18:55 -0700 (PDT) Date: Wed, 24 Jun 2015 06:18:30 +1000 From: Dave Chinner Subject: Re: xfs_iext_realloc_indirect and "XFS: possible memory allocation deadlock" Message-ID: <20150623201830.GF22807@dastard> References: <358C712AD1904865BE275A629A9AAECE@alyakaslap> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <358C712AD1904865BE275A629A9AAECE@alyakaslap> 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: Alex Lyakas Cc: hch@lst.de, xfs@oss.sgi.com T24gVHVlLCBKdW4gMjMsIDIwMTUgYXQgMTA6MTg6MjFBTSArMDIwMCwgQWxleCBMeWFrYXMgd3Jv dGU6Cj4gR3JlZXRpbmdzLAo+IAo+IFdlIGFyZSBoaXR0aW5nIGFuIGlzc3VlIHdpdGggWEZTIHBy aW50aW5nIG1lc3NhZ2VzIGxpa2Ug4oCcWEZTOgo+IHBvc3NpYmxlIG1lbW9yeSBhbGxvY2F0aW9u IGRlYWRsb2NrIGluIGttZW1fYWxsb2MKPiAobW9kZToweDI1MCnigJ0gYW5kIHN0YWNrIHRyYWNl IGxpa2UgaW4gWzFdLiBFdmVudHVhbGx5LAo+IGh1bmctdGFzayBwYW5pYyBraWNrcyBpbiB3aXRo IHN0YWNrIHRyYWNlcyBsaWtlIFsyXS4KPiAKPiBXZSBhcmUgcnVubmluZyBrZXJuZWwgMy44LjEz LiBJIHNlZSB0aGF0IGluCj4gaHR0cDovL29zcy5zZ2kuY29tL2FyY2hpdmVzL3hmcy8yMDEyLTAx L21zZzAwMzQxLmh0bWwgYSBzaW1pbGFyCj4gaXNzdWUgaGFzIGJlZW4gZGlzY3Vzc2VkLCBidXQg bm8gY29kZSBjaGFuZ2VzIGZvbGxvd2VkIGNvbXBhcmluZwo+IHRvIHdoYXQgd2UgaGF2ZSBpbiAz LjguMTMuCj4gCj4gQW55IHN1Z2dlc3Rpb24gb24gaG93IHRvIG1vdmUgZm9yd2FyZCB3aXRoIHRo aXMgcHJvYmxlbT8gRm9yCj4gZXhhbXBsZSwgZG9lcyB0aGlzIG1lbW9yeSBoYXMgdG8gYmUgcmVh bGx5IGFsbG9jYXRlZCB3aXRoIGttYWxsb2MKPiAoaS5lLiwgcGh5c2ljYWxseSBjb250aW51b3Vz KSBvciB2bWFsbG9jIGNhbiBiZSB1c2VkPwoKV2UgbGVmdCBpdCBhbG9uZSBiZWNhdXNlIGl0IGlz IHJlbGF0aXZlbHkgcmFyZSBmb3IgcGVvcGxlIHRvIGhpdCBpdCwKYW5kIGdlbmVyYWxseSBpdCBp bmRpY2F0ZXMgYSBzZXZlcmUgZnJhZ21lbnRhdGlvbiBwcm9ibGVtIHdoZW4gdGhleQpkbyBoaXQg aXQgKGkuZS4gYSBmaWxlIHdpdGggbWlsbGlvbnMgb2YgZXh0ZW50cyBpbiBpdCkuIENhbiB5b3UK dHJhY2sgZG93biB0aGUgZmlsZSB0aGF0IHRoaXMgaXMgb2NjdXJyaW5nIGFnYWluc3QgYW5kIHNl ZSBob3cgbWFueQpleHRlbnRzIGl0IGhhcz8KCmkuZS4geW91IG1heSBiZSBtdWNoIGJldHRlciBv ZmYgYnkgdGFraW5nIG1lYXN1cmVzIHRvIGF2b2lkIGV4Y2Vzc2l2ZQpmcmFnbWVudGF0aW9uIHRo YW4gcmVtb3ZpbmcgdGhlIGNhbmFyeSBmcm9tIHRoZSBtaW5lLi4uCgo+IFsxMDk2MjYuMDc1NDgz XSBuZnNkICAgICAgICAgICAgRCAwMDAwMDAwMDAwMDAwMDAyICAgICAwIDIwMDQyICAgICAgMiAw eDAwMDAwMDAwCgpIbW1tIC0gaXQncyBhbHNvIGEgZmlsZSB3cml0dGVuIGJ5IHRoZSBORlMgc2Vy dmVyIC0gdGhpcyBpcyBpcyBvbiBhbgphIGRlZGljYXRlZCBORlMgc2VydmVyPwoKPiBbMTA5NjI2 LjA3NTQ4M10gIFs8ZmZmZmZmZmZhMDFiZTZiMD5dID8gbmZzZF9zZXR1c2VyKzB4MTIwLzB4MmIw IFtuZnNkXQo+IFsxMDk2MjYuMDc1NDgzXSAgWzxmZmZmZmZmZjgxMTliY2NjPl0gPyB2ZnNfd3Jp dGV2KzB4M2MvMHg1MAo+IFsxMDk2MjYuMDc1NDgzXSAgWzxmZmZmZmZmZmEwMWI3ZGQyPl0gPyBu ZnNkX3Zmc193cml0ZS5pc3JhLjEyKzB4OTIvMHgzNTAgW25mc2RdCj4gWzEwOTYyNi4wNzU0ODNd ICBbPGZmZmZmZmZmODExOWE2Y2I+XSA/IGRlbnRyeV9vcGVuKzB4NmIvMHhkMAo+IFsxMDk2MjYu MDc1NDgzXSAgWzxmZmZmZmZmZmEwMWJhNjc5Pl0gPyBuZnNkX3dyaXRlKzB4ZjkvMHgxMTAgW25m c2RdCj4gWzEwOTYyNi4wNzU0ODNdICBbPGZmZmZmZmZmYTAxYzRkZDE+XSA/IG5mc2QzX3Byb2Nf d3JpdGUrMHhiMS8weDE0MCBbbmZzZF0KCkludGVyZXN0aW5nIHRoYXQgdGhpcyBpcyBhbiBORlN2 MyB3cml0ZS4uLgoKPiBbODczMDMuOTc2MTE5XSBJTkZPOiB0YXNrIG5mc2Q6NTY4NCBibG9ja2Vk IGZvciBtb3JlIHRoYW4gMTgwIHNlY29uZHMuCj4gWzg3MzAzLjk3Njk3Nl0gImVjaG8gMCA+IC9w cm9jL3N5cy9rZXJuZWwvaHVuZ190YXNrX3RpbWVvdXRfc2VjcyIgZGlzYWJsZXMgdGhpcyBtZXNz YWdlLgo+IFs4NzMwMy45NzgwMTJdIG5mc2QgICAgICAgICAgICBEIDAwMDAwMDAwMDAwMDAwMDMg ICAgIDAgIDU2ODQgICAgICAyIDB4MDAwMDAwMDAKLi4uLgo+IFs4NzMwMy45NzgxNzRdICBbPGZm ZmZmZmZmYTAyNjk2MjM+XSBuZnNkX3dyaXRlKzB4YTMvMHgxMTAgW25mc2RdCj4gWzg3MzAzLjk3 ODE4Ml0gIFs8ZmZmZmZmZmZhMDI3Nzk0Yz5dIG5mc2Q0X3dyaXRlKzB4MWNjLzB4MjUwIFtuZnNk XQo+IFs4NzMwMy45NzgxODldICBbPGZmZmZmZmZmYTAyNzc0NmM+XSBuZnNkNF9wcm9jX2NvbXBv dW5kKzB4NWFjLzB4N2EwIFtuZnNkXQoKQW5kIHRoYXQgaXMgYSBORnN2NCB3cml0ZS4gWW91IGhh dmUgbXVsdGlwbGUgY2xpZW50cyB3cml0aW5nIHRvIHRoZQpzYW1lIGZpbGUgdXNpbmcgZGlmZmVy ZW50IHZlcnNpb25zIG9mIHRoZSBORlMgcHJvdG9jb2w/CgpDaGVlcnMsCgpEYXZlLgotLSAKRGF2 ZSBDaGlubmVyCmRhdmlkQGZyb21vcmJpdC5jb20KCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCnhmcyBtYWlsaW5nIGxpc3QKeGZzQG9zcy5zZ2kuY29tCmh0 dHA6Ly9vc3Muc2dpLmNvbS9tYWlsbWFuL2xpc3RpbmZvL3hmcwo=