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SubjectRe: RTL8192EE PCIe Wireless Network Adapter crashed with linux-4.13
Date
Larry Finger <Larry.Finger@lwfinger.net> writes:

> On 09/21/2017 06:37 AM, Zwindl wrote:
>> Hi, I've reported to archlinux's bugzilla, and finally found out the
>> flag which caused that issue, it's the
>> `CONFIG_INTEL_IOMMU_DEFAULT_ON=y` flag, I think may this is a kernel
>> bug, more details at https://bugs.archlinux.org/task/55665
>
> My standard kernel has the following:
>
> CONFIG_INTEL_IOMMU=y
> # CONFIG_INTEL_IOMMU_SVM is not set
> # CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
>
> I will do some further testing to see if turning
> CONFIG_INTEL_IOMMU_DEFAULT_ON also breaks my system.

But not all systems have iommu so check from dmesg that iommu is really
enabled.

--
Kalle Valo

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