From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.mainlining.org (mail.mainlining.org [5.75.144.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 957D81397 for ; Fri, 28 Aug 2026 23:40:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=5.75.144.95 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787960402; cv=none; b=E/8DBZd2nn/POZ2ZLstGdrKBd/ihTd8W3zIK1PyrA6Mu8NGftNzmcErMY3E5GaRjI9sSmO2YSXNU/lLTYQLtdPX9hf5PduV64q/yCRUxLwPLaKw2pwkwxh4uN25IjJE1Mu8Hy5rfGo1flnVrI4f6D72xL/CzdfaUiF+Xr9T5rM0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787960402; c=relaxed/simple; bh=bXR0bqSMlLFV90xAdFa40uxmYsZjgW309tZbJ//vDo8=; h=Date:From:To:CC:Subject:In-Reply-To:Message-ID:MIME-Version: Content-Type; b=QUwnAJDe7K5JMkDHhn1lGwe6QihcA9bERTSrx24Fqkq0hpffl7msPDT7R3oFgbnzYd+I10c1LeF1eOTtaHPPPXft9eqDH1qqW8AFpjWXKJE19YrxsyGSifHu8aXyS6EJVpD0k00vTRmuEI4C2U4xZVFopD7I3Ry+5yQVUFjORjI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mainlining.org; spf=pass smtp.mailfrom=mainlining.org; dkim=pass (2048-bit key) header.d=mainlining.org header.i=@mainlining.org header.b=B7YWZkkX; dkim=permerror (0-bit key) header.d=mainlining.org header.i=@mainlining.org header.b=qLe7qu59; arc=none smtp.client-ip=5.75.144.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mainlining.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mainlining.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mainlining.org header.i=@mainlining.org header.b="B7YWZkkX"; dkim=permerror (0-bit key) header.d=mainlining.org header.i=@mainlining.org header.b="qLe7qu59" DKIM-Signature: v=1; a=rsa-sha256; s=202507r; d=mainlining.org; c=relaxed/relaxed; h=Message-ID:Subject:To:From:Date; t=1787960355; bh=fEj+v7KdN06tzExfX3wcd5h BMq6bWzkFtKx0nc4h4KU=; b=B7YWZkkX0p9IvrLU3ZU/+QQoSE5qI3MZAuknjZdwVchvdB3xaO PmqEkCeOz1dRL3xOhuo1CEqrddR+bCP2inNbs9LaIf1DV7d3SKYkL+V4W1ySm/orhMa+FNeqXnw XEpqhAkmQczd+btXZOQUzeN7Fvsy8Gn6q2j6fgsIjlQIRmS0ae/hZDRR1aqQ/+Oyc0v/FUGs2yJ tIhmRv63Ces/5b9P32a+1QWbv89pv1OillN6f0gn8bwnazFG+J1SfiiFq2PYsmQ+WXHK9bS7zwO 9ESAWUcKn2L7nncHwf0bMQ0o3J0iWNOQVXrfIWKsc3lONv1ka+gP+y3cWA9mxSB2JPA==; DKIM-Signature: v=1; a=ed25519-sha256; s=202507e; d=mainlining.org; c=relaxed/relaxed; h=Message-ID:Subject:To:From:Date; t=1787960355; bh=fEj+v7KdN06tzExfX3wcd5h BMq6bWzkFtKx0nc4h4KU=; b=qLe7qu59+s/0CKOCe/c8ScR4BoQ72e0nS5hVbmN/RcTZq/o+UX 5KwvcIp/pcdeZdXSiQ/I/LkWeaEAaXfICCAw==; Date: Sat, 29 Aug 2026 00:39:15 +0100 From: Bradley Morgan To: john.ogness@linutronix.de CC: bigeasy@linutronix.de, gregkh@linuxfoundation.org, jonathanh@nvidia.com, linux-kernel@vger.kernel.org, pmladek@suse.com, rostedt@goodmis.org, senozhatsky@chromium.org, tglx@kernel.org, thierry.reding@kernel.org Subject: Re: [PATCH printk v2 0/2] nbcon irq_work fixes In-Reply-To: <20260828140218.232439-1-john.ogness@linutronix.de> Message-ID: <6CCFF45A-3C60-4A38-BF22-7BA556DF28C0@mainlining.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit On 28 August 2026 15:02:07 BST, John Ogness wrote: >Hi, > >This is v2 of a series to address some irq_work issues with nbcon. >Initially motivated as a workaround for hardware-related regressions >reported [0], it turns out that the workaround is actually a nice >improvement for nbcon deferred printing in general. > >v1 is here [1]. > >John Ogness > >The changes since v1: > >- Add a preceding patch to flush the irq_work on nbcon_free(). This > pre-existing issue was reported [2] by Sashiko while it was > reviewing v1. > >[0] >https://lore.kernel.org/lkml/f3757a75-0ba1-4558-bf57-f19ab7e59a4c@nvidia.com >[1] >https://lore.kernel.org/lkml/20260827184750.203521-1-john.ogness@linutronix.de >[2] >https://sashiko.dev/#/patchset/20260827184750.203521-1-john.ogness%40linutronix.de > >John Ogness (2): > printk/nbcon: Flush nbcon_irq_work in nbcon_free() > printk/nbcon: Change nbcon_irq_work to IRQ_WORK_LAZY > > kernel/printk/nbcon.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > >base-commit: ffe0486b139e45cd9c9ca2584f04a1910fe4f8a6 > Tested-by: Bradley Morgan # PKVM, based on Pixel 7 (ARM64) --- Thanks! https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/