From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.5 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 15319C67839 for ; Wed, 12 Dec 2018 00:53:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B61FF20811 for ; Wed, 12 Dec 2018 00:53:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="DrOgO8hn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B61FF20811 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726249AbeLLAxg (ORCPT ); Tue, 11 Dec 2018 19:53:36 -0500 Received: from mail-it1-f194.google.com ([209.85.166.194]:35381 "EHLO mail-it1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726201AbeLLAxg (ORCPT ); Tue, 11 Dec 2018 19:53:36 -0500 Received: by mail-it1-f194.google.com with SMTP id p197so7201400itp.0 for ; Tue, 11 Dec 2018 16:53:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=6/RsfP7vXkPcHE8sOFoMjSieEQuAbOaM86O/XnPxfAs=; b=DrOgO8hnL4yMpbkOBwfVJ6FGhYYDAjzBl9vaqjSQw26zMr5czxk7bvSmwU4V+OEqCo BDjrSfJxsmftp7Da+7N17MdVgNfmNCAzJwx0ie3aZq8PkgBZTwwqxj2mhumBboSbbr1q Nz2ymuJ38WPkXXOCmPPm3fVgKy8ed/ySUTz0y+gvBoXX0mZXLHeDFV9vkj1Ekv+4B2i/ 0r5VLp02z9dZwcjtqmaj8JgbT9Ld+KxhIkQ1Q0eJs/jz/0bGwFwOCmA5R2TIQmpU8r2l Iw12ZPEqXcyxCzWmY/lk1Xk/Hy4KA/9wn6ba2jnTngCd8aLJhLi+47lHip4jcopAkYyN oy3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=6/RsfP7vXkPcHE8sOFoMjSieEQuAbOaM86O/XnPxfAs=; b=aji1GhVe1C4nmxE2e1msgu1LotQ2Z47ec3G9pbyr1npU9sUvdrELYByT2TA/TEErjG /MBVDSQxkyQaRAC/YgN83mxvmkwzw0VkHXCdB0YBtWJie8kW3wWliLUF6zIFutz3RTMm VjuJSR7PEUOnYAUKBbR2jQ7+q64DsoeF+QkR3cie3XH1JJXIQliel5dBmy9U8d9SFUMR s7Te4A2GsUVUDQtsA7YgDF36KZSiqoUYRB0ijICjAGW98KyliQ5agCV+yIhwsocJKE7P eDP7z5R4V1d1a87Nvd+g8r9jL4uo73b11H84H91gUcMkmdZnnmatdYD1ptHC3LmzWgvF Iu9Q== X-Gm-Message-State: AA+aEWbNw2wQpdzJBLIHEm5k1sgyoRLmHu+Nh0aEDEE0uQfXjZ8xV+qY i9xoZ82+AWjF7N/rCubR0SYWCbIiYcRGH5YhvH+3Xw== X-Google-Smtp-Source: AFSGD/WVW1yF/DLEaKVtcZREFjRX9sCfW6sm170ynU/Wqk3lGPXKDKTfaw4YZMulOwnie18ca2mBmpH2fptYqMJNfxQ= X-Received: by 2002:a24:fd09:: with SMTP id m9mr4289190ith.81.1544576014522; Tue, 11 Dec 2018 16:53:34 -0800 (PST) MIME-Version: 1.0 References: <20181016050428.17966-2-sergey.senozhatsky@gmail.com> <20181025101036.6823-1-sergey.senozhatsky@gmail.com> <20181031122736.epbxu424l3xagge5@pathway.suse.cz> <20181101014821.GB502@jagdpanzerIV> <20181101080808.n73lrlnjd65nk4qf@pathway.suse.cz> <20181122131202.nkcurdt5k6jrhowa@pathway.suse.cz> In-Reply-To: <20181122131202.nkcurdt5k6jrhowa@pathway.suse.cz> From: Daniel Wang Date: Tue, 11 Dec 2018 16:53:22 -0800 Message-ID: Subject: Re: [PATCHv3] panic: avoid deadlocks in re-entrant console drivers To: Petr Mladek Cc: Sergey Senozhatsky , linux-kernel@vger.kernel.org, Steven Rostedt , Peter Zijlstra , Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , Alan Cox , Jiri Slaby , Peter Feiner , linux-serial@vger.kernel.org, Sergey Senozhatsky Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000b19631057cc8a048" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --000000000000b19631057cc8a048 Content-Type: text/plain; charset="UTF-8" Is it okay to tag this commit with `Cc: stable@vger.kernel.org` so that it'll get applied to the stable trees once merged into Linux's tree, if it's not too late? Otherwise I'll follow up on the stable merges separately. Thanks for making the changes anyway. On Thu, Nov 22, 2018 at 5:12 AM Petr Mladek wrote: > > On Thu 2018-11-01 09:08:08, Petr Mladek wrote: > > On Thu 2018-11-01 10:48:21, Sergey Senozhatsky wrote: > > > On (10/31/18 13:27), Petr Mladek wrote: > > > > > > > > > > Signed-off-by: Sergey Senozhatsky > > > > > > > > The patch makes sense to me. The locks should stay busted also for > > > > console_flush_on_panic(). > > > > > > > > With the added #include : > > > > > > > > Reviewed-by: Petr Mladek > > > > > > Thanks! > > > > > > Since there are no objections - how shall we route it? Via printk tree? > > > > Good question. OK, I am going to put it into printk.git unless I hear > > complains withing next couple of days. > > I have pushed this into printk.git, branch for-4.21. > > Best Regards, > Petr -- Best, Daniel --000000000000b19631057cc8a048 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIS7QYJKoZIhvcNAQcCoIIS3jCCEtoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg ghBTMIIEXDCCA0SgAwIBAgIOSBtqDm4P/739RPqw/wcwDQYJKoZIhvcNAQELBQAwZDELMAkGA1UE BhMCQkUxGTAXBgNVBAoTEEdsb2JhbFNpZ24gbnYtc2ExOjA4BgNVBAMTMUdsb2JhbFNpZ24gUGVy c29uYWxTaWduIFBhcnRuZXJzIENBIC0gU0hBMjU2IC0gRzIwHhcNMTYwNjE1MDAwMDAwWhcNMjEw NjE1MDAwMDAwWjBMMQswCQYDVQQGEwJCRTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEiMCAG A1UEAxMZR2xvYmFsU2lnbiBIViBTL01JTUUgQ0EgMTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC AQoCggEBALR23lKtjlZW/17kthzYcMHHKFgywfc4vLIjfq42NmMWbXkNUabIgS8KX4PnIFsTlD6F 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