From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 872F229A1; Wed, 28 Jan 2026 08:54:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769590442; cv=none; b=pqODf9Fr+XwzPgBCc/en9dsuZEdm0QnSwto1QI4kDdobsk3omjigA08sbGWdyv0VTcclu39tehcynIdyFJHYeKOPWpVynZPQMq/DZ5ls3gNpmBUDMGDnbmhDZGGs7CS9HlQ94OlLcKvRhfz51hf9gWlbQ0Kriw4cvOj16x0jbbA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769590442; c=relaxed/simple; bh=sp8ZzgKfLYBf6n5dvtaPV7JJtZoVmZtARJEfnOlvgnA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=R6ZvZr/5mQrosxadFsrLddvF4Vd1H49DEwSoGAr7XYrgEqQnyUbvBpkGWsWfYDxqvrTCXEyU1qUSyIV3vKOpz2WEFSHu0rgrgl56Zuy9kQvOHDqtKpnSBUXhya0AJ9MwrFCtCxl3JAeBBcHacgTynSBnpZh7F1Rf8v61DV6Q68o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=IiNsTsjt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="IiNsTsjt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75B35C4CEF1; Wed, 28 Jan 2026 08:54:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1769590442; bh=sp8ZzgKfLYBf6n5dvtaPV7JJtZoVmZtARJEfnOlvgnA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IiNsTsjt7/JJEy7yHNve/JooAIlH0pnM87ZGvmgdHepEWko5EVz56NLPJSRbmXI8w sxKEPaOCpGXqDtQ0OHpQYWN7Mt9VjqvMvARm+eLYaHLPTNohEerYQif5fI9Qezgjy+ G4XDfI/hst0WjbqQ1xzHMsJI6EzUETgPfOt5Yvr0= Date: Wed, 28 Jan 2026 09:53:58 +0100 From: Greg KH To: Al Viro Cc: Linus Torvalds , Samuel Wu , linux-fsdevel@vger.kernel.org, brauner@kernel.org, jack@suse.cz, raven@themaw.net, miklos@szeredi.hu, neil@brown.name, a.hindborg@kernel.org, linux-mm@kvack.org, linux-efi@vger.kernel.org, ocfs2-devel@lists.linux.dev, kees@kernel.org, rostedt@goodmis.org, linux-usb@vger.kernel.org, paul@paul-moore.com, casey@schaufler-ca.com, linuxppc-dev@lists.ozlabs.org, john.johansen@canonical.com, selinux@vger.kernel.org, borntraeger@linux.ibm.com, bpf@vger.kernel.org, clm@meta.com, android-kernel-team Subject: Re: [PATCH v4 00/54] tree-in-dcache stuff Message-ID: <2026012812-jurist-whoops-0ef5@gregkh> References: <20251118051604.3868588-1-viro@zeniv.linux.org.uk> <2026012715-mantra-pope-9431@gregkh> <20260127201454.GQ3183987@ZenIV> Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260127201454.GQ3183987@ZenIV> On Tue, Jan 27, 2026 at 08:14:54PM +0000, Al Viro wrote: > On Tue, Jan 27, 2026 at 10:39:04AM -0800, Linus Torvalds wrote: > > On Mon, 26 Jan 2026 at 23:42, Greg KH wrote: > > > > > > Note that I had to revert commit e5bf5ee26663 ("functionfs: fix the > > > open/removal races") from the stable backports, as it was causing issues > > > on the pixel devices it got backported to. So perhaps look there? > > > > Hmm. That commit is obviously still upstream, do we understand why it > > caused problems in the backports? > > This is all I've seen: > > | It has been reported to cause test problems in Android devices. As the > | other functionfs changes were not also backported at the same time, > | something is out of sync. So just revert this one for now and it can > | come back in the future as a patch series if it is tested. > > My apologies for not following up on that one; Greg, could you give some > references to those reports? Sorry, all I got was a "this commit caused devices to fail" and was found from bisection, on the 6.18.y tree. Samuel has much more information as to exactly what is happening here as he can see the test results properly, I'll let him work through this, thanks! greg k-h