Re: [PATCH v11 00/11] iommu/arm-smmu-v3: Adopt the crashed kernel's stream table for kdump

From: Jason Gunthorpe

Date: Sat Oct 17 2026 - 07:40:41 EST


On Sat, Oct 17, 2026 at 04:19:20PM +0800, Shuai Xue wrote:

> We tested this series (v11, backported onto our 6.6-based kernel) on two
> arm64 server platforms that differ in how PCIe errors are reported: one
> with firmware-first reporting (GHES/CPER), the other with OS-first AER
> plus DPC. The test triggers a kdump crash (echo c > /proc/sysrq-trigger)
> on an otherwise idle machine and compares the capture kernel's dmesg
> between the unpatched baseline and the kernel carrying this series.

Thanks, this is a nice description of the challenges server type
systems face!

Jason