From: sashiko-bot@kernel.org
To: jeffbarnes@linux.microsoft.com
Cc: Frank.Li@kernel.org, imx@lists.linux.dev, linux-pci@vger.kernel.org
Subject: Re: [PATCH] PCI: layerscape: use default error response behavior
Date: Tue, 29 Sep 2026 19:47:35 +0000 [thread overview]
Message-ID: <20260929194735.AB9671F00893@smtp.kernel.org> (raw)
In-Reply-To: <20260929194339.233271-1-jeffbarnes@linux.microsoft.com>
> From: Jeff Barnes <jeffbarnes@linux.microsoft.com>
>
> The Layerscape PCIe driver programs PCIE_ABSERR to forward errors from
> outbound non-posted requests to the internal AXI interface.
>
> A PCI configuration access can race with the link going down after
> dw_pcie_other_conf_map_bus() checks the link but before the MMIO access
> is performed. When the resulting Completion Timeout is forwarded to
> AXI, it causes an asynchronous SError and kernel panic.
>
> For example:
>
> Kernel panic - not syncing: Asynchronous SError Interrupt
> ...
> Call trace:
> [ ... ]
> ("PCI: layerscape: Change default error response behavior").
>
> Fixes: 84d897d69938 ("PCI: layerscape: Change default error response behavior")
> Cc: stable@vger.kernel.org
> Signed-off-by: Jeff Barnes <jeffbarnes@linux.microsoft.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260929194339.233271-1-jeffbarnes@linux.microsoft.com?part=1
next prev parent reply other threads:[~2026-09-29 19:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-29 19:43 [PATCH] PCI: layerscape: use default error response behavior jeffbarnes
2026-09-29 19:47 ` sashiko-bot [this message]
2026-09-30 16:41 ` Frank Li
2026-09-30 17:02 ` Jeff Barnes
2026-10-01 15:33 ` [PATCH v2] Revert "PCI: layerscape: Change default error response behavior" Jeff Barnes
2026-10-01 15:37 ` sashiko-bot
2026-10-01 16:30 ` Frank Li
2026-10-01 16:38 ` Frank Li
2026-10-08 13:57 ` Jeff Barnes
2026-10-08 16:42 ` Easwar Hariharan
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