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 42C7528E7; Sat, 1 Mar 2025 05:32:16 +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=1740807137; cv=none; b=VFmpIwJo5I2qr3QBFsgcT+/6w5m71lTMwWtVujoN+g7sbx6ZSaVLq2OtJH+juMbNh1lVjy8DIOo9wplQ7hGbDnMfNAwPmXKdDXblR7If8B2fIZ2WcV65jV6I6lVZk4ccQJ+78ydek8wu+fUyBFdLYj8lV7Njl5ctY4rkISfOyJE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740807137; c=relaxed/simple; bh=hPXdQ/hFIPpJkdJk70/Oo9SCb0ot1PV7JSm65Zo7Cqg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=oPHAcNfrtgbXkhsLaOh4GXH3stFpev8fSUoqvLwgSSm+qP5Rd0jYMmN+GjZhmZQaVTIUJn9iM7yfW5buXKYsuMeqLBkkVuAnjiYnjnKQc9Y54yrVl12ePmzwZ9yHfMfpFjauiMLYI0qz49/hVE1wcJ5XbZuMTVuct9bIuP0vkcA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yZynGDlY; 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="yZynGDlY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 322F8C4CEDD; Sat, 1 Mar 2025 05:32:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740807136; bh=hPXdQ/hFIPpJkdJk70/Oo9SCb0ot1PV7JSm65Zo7Cqg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=yZynGDlYwSbyoqFxsYZl1iByokf6rG0lkNQ74A4dx6zWUHiE8rkNPKdaqpLCM49Bn Uzrt/PWQSzWLM/oTxXcz3PcYxelzJVyoeGwpXCciRubcatryZJoBOlZTenvMi71GVA 2W0TdbFnLPo/0syo4YdyI4XV80EkIo0CIlMPU25o= Date: Fri, 28 Feb 2025 20:19:47 -0800 From: Greg KH To: Harshvardhan Jha Cc: =?iso-8859-1?Q?J=FCrgen_Gro=DF?= , Harshit Mogalapalli , Salvatore Bonaccorso , Stefano Stabellini , Sasha Levin , Oleksandr Tyshchenko , xen-devel@lists.xenproject.org, iommu@lists.linux.dev, Radoslav =?iso-8859-1?Q?Bod=F3?= , regressions@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Konrad Rzeszutek Wilk Subject: Re: [6.1.y] Regression from b1e6e80a1b42 ("xen/swiotlb: add alignment check for dma buffers") when booting with Xen and mpt3sas_cm0 _scsih_probe failures Message-ID: <2025022853-undivided-scribing-70dd@gregkh> References: <716f186d-924a-4f2c-828a-2080729abfe9@oracle.com> <6d7ed6bf-f8ad-438a-a368-724055b4f04c@suse.com> <2025021548-amiss-duffel-9dcf@gregkh> <74e74dde-0703-4709-96b8-e1615d40f19c@suse.com> <2025021533-grime-luminous-d598@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Fri, Feb 28, 2025 at 01:50:12PM +0530, Harshvardhan Jha wrote: > > On 15/02/25 8:25 PM, Greg KH wrote: > > On Sat, Feb 15, 2025 at 02:39:46PM +0100, Jürgen Groß wrote: > >> On 15.02.25 13:34, Greg KH wrote: > >>> On Sat, Feb 15, 2025 at 12:47:57PM +0100, Jürgen Groß wrote: > >>>> On 12.02.25 16:12, Harshit Mogalapalli wrote: > >>>>> Hi Salvatore, > >>>>> > >>>>> On 12/02/25 00:56, Salvatore Bonaccorso wrote: > >>>>>> Hi Harshit, > >>>>>> > >>>>>> On Sun, Feb 09, 2025 at 01:45:38AM +0530, Harshit Mogalapalli wrote: > >>>>>>> Hi Salvatore, > >>>>>>> > >>>>>>> On 08/02/25 21:26, Salvatore Bonaccorso wrote: > >>>>>>>> Hi Juergen, hi all, > >>>>>>>> > >>>>>>>> Radoslav Bodó reported in Debian an issue after updating our kernel > >>>>>>>> from 6.1.112 to 6.1.115. His report in full is at: > >>>>>>>> > >>>>>>>> https://bugs.debian.org/1088159 > >>>>>>>> > >>>>>>> Note: > >>>>>>> We have seen this on 5.4.y kernel: More details here: > >>>>>>> https://lore.kernel.org/all/9dd91f6e-1c66-4961-994e-dbda87d69dad@oracle.com/ > >>>>>> Thanks for the pointer, so looking at that thread I suspect the three > >>>>>> referenced bugs in Debian are in the end all releated. We have one as > >>>>>> well relating to the megasas_sas driver, this one for the mpt3sas > >>>>>> driver and one for the i40e driver). > >>>>>> > >>>>>> AFAICS, there is not yet a patch which has landed upstream which I can > >>>>>> redirect to a affected user to test? > >>>>>> > >>>>> Konrad pointed me at this thread: https://lore.kernel.org/ > >>>>> all/20250211120432.29493-1-jgross@suse.com/ > >>>>> > >>>>> This has some fixes, but not landed upstream yet. > >>>> Patches are upstream now. In case you still experience any problems, please > >>>> speak up. > >>> What specific commits should be backported here? > >> Those are: > >> > >> e93ec87286bd1fd30b7389e7a387cfb259f297e3 > >> 85fcb57c983f423180ba6ec5d0034242da05cc54 > > Ugh, neither of them were marked for stable inclusion, why not? Anyway, > > I'll go queue them up after this round of kernels is released hopefully > > tomorrow, but next time, please follow the stable kernel rules if you > > know you want a patch included in a tree. > > > Hi, > > I see these patches in 6.12 now and upon manually checking these patches > cleanly apply till 6.6 kernel so I guess they will be eventually back > ported till there? They are already in the following released kernels: 6.1.129 6.6.79 6.12.16 6.13.4 6.14-rc3 and the first one is in the stable queues for 5.15, 5.10, and 5.4. The second one is not because as you mention: > 6.1 and older kernels have conflicts while cherry > picking these commits which makes it harder to verify them as the test > machine I have runs on a much older kernel(5.4) unfortunately. If it > could be at least be brought back till 5.15, testing this would become > much easier. The commit does not apply cleanly there. If you need/want it there, please provide a working and tested backport. thanks, greg k-h