Re: [PATCH v2 0/2] Reset PCIe devices to address DMA problem on kdump with iommu

Andi Kleen
2012-10-02T19:37:55Z

Takao Indoh <indou.takao@jp.fujitsu.com> writes:

> These patches reset PCIe devices at boot time to address DMA problem on
> kdump with iommu. When "reset_devices" is specified, a hot reset is
> triggered on each PCIe root port and downstream port to reset its
> downstream endpoint.

Great. I've been pondering this for a long time, but you did finally
implement it. I hope this will make kdump a lot more reliable at least
on the systems that support per port reset.

Now the only question is: why make it a option and not default?

-Andi

--
ak@linux.intel.com -- Speaking for myself only