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Date:   Wed, 5 Oct 2022 05:44:22 +0000
From:   Hau <>
To:     Heiner Kallweit <>
CC:     "" <>,
        nic_swsd <>,
        "" <>,
        "" <>
Subject: RE: [PATCH net] r8169: fix rtl8125b dmar pte write access not set error

> On 04.10.2022 10:10, Chunhao Lin wrote:
> > When close device, rx will be enabled if wol is enabeld. When open
> > device it will cause rx to dma to wrong address after pci_set_master().
> >
> Hi Hau,
> I never experienced this problem. Is it an edge case that can occur under
> specific circumstances?

This issue is happen on google chromebook with IOMMU enabled. Because rx is enabled when wol is enabled, 
so I think there is a chance that the packet receive in device close will be dma to invalid memory address when
device is open.

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