Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp2034070pxu; Tue, 24 Nov 2020 15:21:59 -0800 (PST) X-Google-Smtp-Source: ABdhPJwqec66yxTeAP2xe+aPGIPisPJEKGZi032RUJNy+vNBYHhogdBVyyeQ+VlAu55mKIWa0O53 X-Received: by 2002:aa7:cc14:: with SMTP id q20mr927760edt.140.1606260119465; Tue, 24 Nov 2020 15:21:59 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1606260119; cv=none; d=google.com; s=arc-20160816; b=DWEXpIFbASTP0HwW6JD8JNE23IimdG7/0CzISUS71rJhGWwkxwiFGqu2H6h3SAjuVF IVX+PcLgpxrVMNfSp++Z5Vz/a/pqnYK+HsNnO7DsYOlo8qcRl07B23ron0DqQjTZ1Jql rhhY/IzHzpwWar+LeSglto+uZG4Nsb8AkVMZVU3GRpI7XjD6dLbMjn6D9kFyQ3rPZWHE uyx78JIp4+cMnWR7txfGUX50wzcZ1y63QsMLAkvED4wt2WewyTJ0IsmDiSqpqirtMYOX Nqt9BiznAMbHnq1QQfYt+3Pi5AFnRFFB4t0Lo0zNbXknn39d+QGzgjfM1V5tS+SsJzFl zEJg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :mime-version:accept-language:in-reply-to:references:message-id:date :thread-index:thread-topic:subject:cc:to:from; bh=Xbo4YVPokqzAQEmZssv7yyPuzHb6vhNh+AE+mFDkZG0=; b=K8dMcXZgYkEvaZ/JxmwU+IWHd9bnIHFni9TA9vFEvyYhPgtUbx2OD7/aWR9VHMbFu8 tAwW4oeelGowZdqSa9PfbhOosHlGh0jZ55PY3vuXoJAXjDi+xDBJSl8br5j7xujEOpxY u5RiR0LeniEWJ/xuHRyDryTAg3BmDw7vQDDFs9j3foX4GbMZashldhLE5Og99zjHt7Xx DYHjTvw/HZ9pNfQe1d2hn75GSCQbno1JrTTwzlm5AmuLBWSKVswHh3UcXglLhyj8Lkyf vmOtWfacOwJ9M7lOfBPEy37yqjHjv3Gm9E19UIvobhRr1BgsYbSezpVzZGBAv5vXRSvY TRCg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p19si234033ejw.28.2020.11.24.15.21.30; Tue, 24 Nov 2020 15:21:59 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389644AbgKXPaq (ORCPT + 99 others); Tue, 24 Nov 2020 10:30:46 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:29829 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389662AbgKXPaq (ORCPT ); Tue, 24 Nov 2020 10:30:46 -0500 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-117-FzTlDiKxMNmyd29DthU8XA-1; Tue, 24 Nov 2020 15:30:42 +0000 X-MC-Unique: FzTlDiKxMNmyd29DthU8XA-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 24 Nov 2020 15:30:42 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Tue, 24 Nov 2020 15:30:42 +0000 From: David Laight To: 'Ard Biesheuvel' CC: linux-efi , kernel list , "matthew.garrett@nebula.com" , "jk@ozlabs.org" Subject: RE: Oops (probably) unmounting /oldroot/firmware/efi/efivars. Thread-Topic: Oops (probably) unmounting /oldroot/firmware/efi/efivars. Thread-Index: AdbCbM2Q6wdSIj4dRX6VFD+iYFiXewAAJveAAAEq0JAAACh8AAAA5OiA Date: Tue, 24 Nov 2020 15:30:42 +0000 Message-ID: <4bd4f6ca36334473bc55bf3b5704afa1@AcuMS.aculab.com> References: <5f31cde519b941308412b3849197ee7c@AcuMS.aculab.com> <3e96bbfe476b4b3d876e480ce6b20b58@AcuMS.aculab.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogQXJkIEJpZXNoZXV2ZWwNCj4gU2VudDogMjQgTm92ZW1iZXIgMjAyMCAxNTowMg0KPiBP biBUdWUsIDI0IE5vdiAyMDIwIGF0IDE1OjU4LCBEYXZpZCBMYWlnaHQgPERhdmlkLkxhaWdodEBh Y3VsYWIuY29tPiB3cm90ZToNCj4gPg0KPiA+IEZyb206IEFyZCBCaWVzaGV1dmVsDQo+ID4gPiBT ZW50OiAyNCBOb3ZlbWJlciAyMDIwIDE0OjI0DQo+ID4gPg0KPiA+ID4gT24gVHVlLCAyNCBOb3Yg MjAyMCBhdCAxNToyMiwgRGF2aWQgTGFpZ2h0IDxEYXZpZC5MYWlnaHRAYWN1bGFiLmNvbT4gd3Jv dGU6DQo+ID4gPiA+DQo+ID4gPiA+IEkndmUganVzdCB1cGRhdGVkIHRvIHRoZSBoZWFkIG9mIExp bnVzJ3MgdHJlZSAoNS4xMC1yYzUpIGFuZCBnb3QgdGhlIGZvbGxvd2luZw0KPiA+ID4gPiAnc3Bs YXQnIGR1cmluZyBzaHV0ZG93bi4NCj4gPiA+ID4NCj4gPiA+ID4gVXNlcnNwYWNlIGlzIFVidW50 dSAyMC4wNC4NCj4gPiA+ID4NCj4gPiA+ID4gcmM0IHJlYm9vdGVkIGZpbmUuDQo+ID4gPiA+DQo+ ID4gPiA+IEknbGwgdHJ5IHRvIGJpc2VjdCAtIGJ1dCBpdCBpc24ndCBxdWljay4NCj4gPiA+ID4N Cj4gPiA+DQo+ID4gPiBTdXJlbHkgY2F1c2VkIGJ5DQo+ID4gPg0KPiA+ID4NCj4gaHR0cHM6Ly9n aXQua2VybmVsLm9yZy9wdWIvc2NtL2xpbnV4L2tlcm5lbC9naXQvdG9ydmFsZHMvbGludXguZ2l0 L2NvbW1pdC9mcy9lZml2YXJmcz9pZD1mZTUxODZjZjEyZTMwDQo+ID4gPiBmYWNmZTI2MWU5YmU2 Yzc5MDRhMTcwYmQ4MjINCj4gPg0KPiA+IFllcCwgcmVib290cyBmaW5lIHdpdGggdGhhdCBrZnJl ZSgpIGNvbW1lbnRlZCBvdXQuDQo+ID4NCj4gDQo+IFRoYW5rcyBmb3IgY29uZmlybWluZy4NCj4g DQo+IERvZXMgaXQgYWxzbyB3b3JrIHdoZW4ga2VlcGluZyB0aGUga2ZyZWUoKSBhbmQgc2V0dGlu Zw0KPiBpbm9kZS0+aV9wcml2YXRlIHRvIE5VTEwgZXhwbGljaXRseSBhZnRlcndhcmRzPw0KDQpO bywgdGhhdCBzdGlsbCBwYW5pY3MuDQpTZXR0aW5nIGlfcHJpdmF0ZSBOVUxMIChidXQgd2l0aG91 dCB0aGUga2ZyZWUoKSkgaXMgb2suDQoNCkknbSBzZWVpbmcgNDIgY2FsbHMgd2l0aCBhIG5vbi1O VUxMIGlfcHJpdmF0ZS4NClRoZSBmaW5hbCBjYWxsIGhhcyBpX3ByaXZhdGUgTlVMTCBhbmQgaXNu J3QgYSBkdXBsaWNhdGUuDQoNClRoZXJlIG11c3QgYmUgYW5vdGhlciBwb2ludGVyIGludG8gb25l IG9mIHRoZSBzdHJ1Y3R1cmVzLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExh a2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQs IFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K