From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by kanga.kvack.org (Postfix) with ESMTP id 0B8736B000C for ; Mon, 1 Oct 2018 16:37:44 -0400 (EDT) Received: by mail-io1-f70.google.com with SMTP id z20-v6so14770876ioh.2 for ; Mon, 01 Oct 2018 13:37:44 -0700 (PDT) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id 196-v6sor7315634itl.137.2018.10.01.13.37.42 for (Google Transport Security); Mon, 01 Oct 2018 13:37:43 -0700 (PDT) MIME-Version: 1.0 References: <20180927194601.207765-1-wonderfly@google.com> <20181001152324.72a20bea@gandalf.local.home> In-Reply-To: <20181001152324.72a20bea@gandalf.local.home> From: Daniel Wang Date: Mon, 1 Oct 2018 13:37:30 -0700 Message-ID: Subject: Re: 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes" Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000eaa109057730c633" Sender: owner-linux-mm@kvack.org List-ID: To: rostedt@goodmis.org Cc: stable@vger.kernel.org, pmladek@suse.com, Alexander.Levin@microsoft.com, akpm@linux-foundation.org, byungchul.park@lge.com, dave.hansen@intel.com, hannes@cmpxchg.org, jack@suse.cz, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mathieu.desnoyers@efficios.com, mgorman@suse.de, mhocko@kernel.org, pavel@ucw.cz, penguin-kernel@i-love.sakura.ne.jp, peterz@infradead.org, tj@kernel.org, torvalds@linux-foundation.org, vbabka@suse.cz, xiyou.wangcong@gmail.com, Peter Feiner --000000000000eaa109057730c633 Content-Type: text/plain; charset="UTF-8" On Mon, Oct 1, 2018 at 12:23 PM Steven Rostedt wrote: > > > Serial console logs leading up to the deadlock. As can be seen the stack trace > > was incomplete because the printing path hit a timeout. > > I'm fine with having this backported. Thanks. I can send the cherrypicks your way. Do you recommend that I include the three follow-up fixes though? c14376de3a1b printk: Wake klogd when passing console_lock owner fd5f7cde1b85 printk: Never set console_may_schedule in console_trylock() c162d5b4338d printk: Hide console waiter logic into helpers dbdda842fe96 printk: Add console owner and waiter logic to load balance console writes > > -- Steve -- Best, Daniel --000000000000eaa109057730c633 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 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