From: Aditya Garg <gargaditya08@live.com>
To: Atharva Tiwari <atharvatiwarilinuxdev@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>,
Oliver O'Halloran <oohall@gmail.com>,
Andreas Noever <andreas.noever@gmail.com>,
Mika Westerberg <westeri@kernel.org>,
Yehezkel Bernat <YehezkelShB@gmail.com>,
Lukas Wunner <lukas@wunner.de>, Dave Jiang <dave.jiang@intel.com>,
Giovanni Cabiddu <giovanni.cabiddu@intel.com>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>,
Feng Tang <feng.tang@linux.alibaba.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: Re: [PATCH RESEND v6] PCI/portdev: Disable AER for Titan Ridge 4C 2018
Date: Mon, 16 Mar 2026 17:39:00 +0000 [thread overview]
Message-ID: <EDD57FBF-B2DD-4C79-B8A4-75824F4B8912@live.com> (raw)
In-Reply-To: <20260113173351.1417-1-atharvatiwarilinuxdev@gmail.com>
> On 13 Jan 2026, at 11:03 PM, Atharva Tiwari <atharvatiwarilinuxdev@gmail.com> wrote:
>
> Disable AER for Intel Titan Ridge 4C 2018
> (used in T2 iMacs, where the warnings appear)
> that generate continuous pcieport warnings. such as:
>
> pcieport 0000:00:1c.4: AER: Correctable error message received from 0000:07:00.0
> pcieport 0000:07:00.0: PCIe Bus Error: severity=Correctable, type=Data Link Layer, (Receiver ID)
> pcieport 0000:07:00.0: device [8086:15ea] error status/mask=00000080/00002000
> pcieport 0000:07:00.0: [ 7] BadDLLP
>
> macOS also disables AER for Thunderbolt devices and controllers in their drivers.
>
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220651
> Signed-off-by: Atharva Tiwari <atharvatiwarilinuxdev@gmail.com>
Looking at the comment: https://bugzilla.kernel.org/show_bug.cgi?id=220651#c4, I am deducing 2 things:
1. You need AER for a driver you are writing
2. AER was working before 6.1
I think finding the cause of the regression would be better than disabling the thing itself right?
And if disabling AER has its benefits, please write a proper commit message.
prev parent reply other threads:[~2026-03-16 17:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-13 17:33 [PATCH RESEND v6] PCI/portdev: Disable AER for Titan Ridge 4C 2018 Atharva Tiwari
2026-03-16 17:39 ` Aditya Garg [this message]
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