Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx2.netapp.com ([216.240.18.37]:13767 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752697Ab2I0VWB (ORCPT ); Thu, 27 Sep 2012 17:22:01 -0400 From: "Myklebust, Trond" To: Linus Torvalds CC: Joerg Roedel , Joerg Roedel , "linux-nfs@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: kernel BUG at /data/lemmy/linux.trees.git/fs/nfs/idmap.c:681! Date: Thu, 27 Sep 2012 21:21:59 +0000 Message-ID: <4FA345DA4F4AE44899BD2B03EEEC2FA908FF0BA2@SACEXCMBX04-PRD.hq.netapp.com> References: <20120807134156.GP1996@amd.com> <20120927145217.GA18962@8bytes.org> <4FA345DA4F4AE44899BD2B03EEEC2FA908FEF572@SACEXCMBX04-PRD.hq.netapp.com> <20120927153928.GB18962@8bytes.org> <4FA345DA4F4AE44899BD2B03EEEC2FA908FEF7A3@SACEXCMBX04-PRD.hq.netapp.com> In-Reply-To: Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gVGh1LCAyMDEyLTA5LTI3IGF0IDA5OjU5IC0wNzAwLCBMaW51cyBUb3J2YWxkcyB3cm90ZToN Cj4gT24gVGh1LCBTZXAgMjcsIDIwMTIgYXQgOToxNiBBTSwgTXlrbGVidXN0LCBUcm9uZA0KPiA8 VHJvbmQuTXlrbGVidXN0QG5ldGFwcC5jb20+IHdyb3RlOg0KPiA+DQo+ID4gSSBjYW5ub3Qgc2Vl IGhvdyB0aGF0IEJVR19PTiBjYW4gYmUgdHJpZ2dlcmVkIGluIHRoZSBjdXJyZW50IGNvZGUsIGdp dmVuDQo+ID4gdGhhdCB0aGUgb25seSBwbGFjZSB3aGVyZSBpZG1hcC0+aWRtYXBfa2V5X2NvbnMg aXMgc2V0IHRvIGEgbm9uLU5VTEwNCj4gPiB2YWx1ZSBpcyBjb3ZlcmVkIGJ5IGEgbXV0ZXgsIGFu ZCB0aGF0IGl0IGlzIGFsd2F5cyBjbGVhcmVkIGJlZm9yZSB3ZQ0KPiA+IHJlbGVhc2Ugc2FpZCBt dXRleC4NCj4gDQo+IFF1aXRlIGZyYW5rbHksIHRoZSAiSSBjYW5ub3Qgc2VlIiB0aGluZyBpcyAq bmV2ZXIqIGFuIGV4Y3VzZSBmb3IgYSBCVUdfT04oKS4NCj4gDQo+IFdlIGRvbid0IGRvIGtlcm5l bC1raWxsaW5nIGFzc2VydHMgaW4gTGludXguIE5ldmVyLg0KPiANCj4gVGhlIG9ubHkgZXhjdXNl IGZvciBhIEJVR19PTigpIGlzICJJIGNhbm5vdCBwb3NzaWJseSBjb250aW51ZSwgSSBkb24ndA0K PiBldmVuIGhhdmUgYW4gZXJyb3IgcGF0aCBJIGNhbiB0YWtlIi4NCj4gDQo+IElmIGl0J3MgYSBm dW5kYW1lbnRhbGx5IGltcG9zc2libGUgc2l0dWF0aW9uLCB0aGUgQlVHX09OKCkgc2hvdWxkDQo+ IG5ldmVyIGhhdmUgYmVlbiB0aGVyZSBpbiB0aGUgZmlyc3QgcGxhY2UhDQo+IA0KPiBBbmQgaWYg aXQncyBhICJJIGRvbid0IHNlZSBob3cgaXQgY291bGQgaGFwcGVuIiwgdGhlbiBpdCBzaG91bGQg aGF2ZQ0KPiBiZWVuIHNvbWV0aGluZyBsaWtlDQo+IA0KPiAgICAgaWYgKFdBUk5fT05fT05DRShj b25kaXRpb24pKQ0KPiAgICAgICAgIGdvdG8gY2xlYW51cDsNCj4gDQo+IHJhdGhlciB0aGFuIGEg QlVHX09OKCkuDQo+IA0KPiBXZSBoYXZlIHRvbyBtYW55IGYqY2tpbmcgQlVHX09OJ3MgaW4gdGhl IGtlcm5lbCwgYW5kIHRoZSBmYWN0IHRoYXQgb25lDQo+IHRyaWdnZXJzIGFuZCBpdCBoYXMgdGFr ZW4gYSBtb250aCBhbmQgYSBoYWxmIHdpdGhvdXQgaXQgZXZlbiBiZWluZw0KPiByZXNvbHZlZCBp cyBhIHByb2JsZW0uDQo+IA0KPiBHZXQgcmlkIG9mIHRoZSB0aGluZywgYWxyZWFkeSwgZGFtbWl0 LiBJZiB5b3UgY2Fubm90IGZpZ3VyZSBvdXQgaG93IGl0DQo+IGNhbiBoYXBwZW4sIHRoZW4gdGhl ICpsYXN0KiB0aGluZyB5b3Ugd2FudCB0byBkbyBpcyB0aGVuIGtpbGwgdGhlDQo+IG1hY2hpbmUg c28gdGhhdCBpdCdzIGltcG9zc2libGUgdG8gZGVidWcgaXQgc2FuZWx5Lg0KPiANCj4gQmVzaWRl cywgYXMgZmFyIGFzIEkgY2FuIHRlbGwsIGlkbWFwX2tleV9jb25zIGxvY2tpbmcgaXMgc3VzcGVj dA0KPiBhbnl3YXkuIFN0dWZmIGxpa2UgdGhpczoNCj4gDQo+ICAgICAgICAgICAgICAgICBjb25z ID0gQUNDRVNTX09OQ0UoaWRtYXAtPmlkbWFwX2tleV9jb25zKTsNCj4gICAgICAgICAgICAgICAg IGlkbWFwLT5pZG1hcF9rZXlfY29ucyA9IE5VTEw7DQo+IA0KPiBpcyBhbiBhbG1vc3QgY2VydGFp biBleGFtcGxlIG9mICJ0aGUgY29kZSBpcyByYWN5LCBhbmQgd2UgZGlkIGl0DQo+IHdyb25nIi4g VGhlIGFib3ZlIGlzIGJhc2ljYWxseSAqbmV2ZXIqIGNvcnJlY3QuDQo+IA0KPiBJZiB0aGUgYWNj ZXNzIGlzIHByb3Blcmx5IGxvY2tlZCwgdGhlbiB0aGUgQUNDRVNTX09OQ0UoKSBpcyBhIGJ1Zy4N Cj4gDQo+IEFuZCBpZiB0aGUgYWNjZXNzICppc24ndCogcHJvcGVybHkgbG9ja2VkLCB0aGVuIHNl dHRpbmcgdGhpbmdzIHRvIE5VTEwNCj4gYWZ0ZXJ3YXJkcyBpcyBpbiBubyB3YXkgc2FmZS4NCj4g DQo+IElPVywgZWl0aGVyIHdheSwgaXQncyBicm9rZW4uIEFuZCB0aGVyZSdzIGF0IGxlYXN0IHR3 byBvZiB0aG9zZQ0KPiBjbGVhcmx5IGJ1Z2d5IGNvZGUtc2VxdWVuY2VzIGludm9sdmluZyB0aGF0 IGZpZWxkLg0KPiANCj4gU28gZ2V0IHJpZCBvZiB0aGUgQlVHX09OKCkgKHBvc3NpYmx5IHJlcGxh Y2luZyBpdCB3aXRoIHRoZQ0KPiBXQVJOX09OX09OQ0UpLCBhbmQgcGxlYXNlIGxvb2sgYXQgdGhv c2UgQUNDRVNTX09OQ0UoKSBzZXF1ZW5jZXMgYW5kDQo+IGZpeCB0aGVtLiBFaXRoZXIgdGhleSBo YXBwZW4gdW5kZXIgYSBsb2NrLCBvciB0aGV5IGRvbid0LiBOb25lIG9mIHRoaXMNCj4gY3Jhenkg cmFjeSBjcmFwLCBwbGVhc2UuDQoNClRoZSBBQ0NFU1NfT05DRSBpcyBhIGJ1Zy4gSXQgaXNuJ3Qg bmVlZGVkLCBzaW5jZSB0aGUgd2hvbGUgdXBjYWxsIGlzDQpjb3ZlcmVkIGJ5IHRoZSBpZG1hcF9t dXRleC4gSSdsbCByZW1vdmUgaXQgYW5kIHRoZSBCVUdfT04oKSBjb21lIHRoZQ0KbWVyZ2Ugd2lu ZG93IChvciBJIGNhbiBzZW5kIGEgcGF0Y2ggc29vbmVyIGlmIHlvdSBjYXJlKS4NCg0KVGhlIGRv d25jYWxsIGlzIG9yZGVyZWQgdy5yLnQuIGlkbWFwX3BpcGVfZGVzdHJveV9tc2coKSAod2hpY2gg Y2xlYXJzDQppZG1hcC0+aWRtYXBfa2V5X2NvbnMgb25seSBvbiB1cGNhbGwgZmFpbHVyZSkuIFRo ZSBkb3duY2FsbCBpcyBhbHNvDQpwcm90ZWN0ZWQgYWdhaW5zdCBjb2xsaXNpb25zIHdpdGggaWRt YXBfcmVsZWFzZV9waXBlKCkgYnkgbWVhbnMgb2YgdGhlDQppbm9kZS0+aV9tdXRleC4gRmluYWxs eSwgdGhlIGNhbGwgdG8gcmVxdWVzdF9rZXkoKSAoZHVyaW5nIHdoaWNoIHRoZQ0KaWRtYXBfbXV0 ZXggaXMgaGVsZCkgd2lsbCBhbHdheXMgZG8gYW4gdW5pbnRlcnJ1cHRpYmxlIHdhaXQgZm9yIG9u ZSBvZg0KdGhvc2UgMyBmdW5jdGlvbnMgdG8gY29tcGxldGUuDQpJT1c6IGFsbCB0aGUgZnVuY3Rp b25zIHRoYXQgbWFuaXB1bGF0ZSBpZG1hcC0+aWRtYXBfa2V5X2NvbnMgYXJlDQp0aGVvcmV0aWNh bGx5IG9yZGVyZWQgdy5yLnQuIGVhY2ggb3RoZXIuIFRoYXQncyB3aGF0IEkgbWVhbiB3aGVuIEkg c2F5DQp0aGF0IEkgcmVhbGx5IGRvbid0IHVuZGVyc3RhbmQgd2h5IHRoaXMgaXMgaGFwcGVuaW5n Lg0KDQpTbyB0aGUgZmlyc3QgdGhpbmcgdG8gZG8gaXMgdG8gdHJ5IGEgX3ZhbmlsbGFfIDMuNi1y YzcsIGFuZCBzZWUgaWYgdGhlDQpwcm9ibGVtIGlzIHJlcHJvZHVjaWJsZSB3aXRob3V0IEpvZXJn J3MgZXh0cmEgcGF0Y2hlcy4NCg0KLS0gDQpUcm9uZCBNeWtsZWJ1c3QNCkxpbnV4IE5GUyBjbGll bnQgbWFpbnRhaW5lcg0KDQpOZXRBcHANClRyb25kLk15a2xlYnVzdEBuZXRhcHAuY29tDQp3d3cu bmV0YXBwLmNvbQ0K