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SubjectRe: [PATCH v6] numa: make node_to_cpumask_map() NUMA_NO_NODE aware
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On 2019/9/24 19:58, Peter Zijlstra wrote:
> On Tue, Sep 24, 2019 at 07:44:28PM +0800, Yunsheng Lin wrote:
>> From [1], there is a lot of devices with node id of NUMA_NO_NODE with the
>> FW_BUG.
>>
>> [1] https://lore.kernel.org/lkml/5a188e2b-6c07-a9db-fbaa-561e9362d3ba@huawei.com/
>
> So aside of all the software devices which we can (and really should)
> fix; these:
>
> 26.470076] pci0000:00: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 26.815436] pci0000:7b: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 27.004447] pci0000:7a: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 27.236797] pci0000:78: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 27.505833] pci0000:7c: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 28.056452] pci0000:74: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 28.470018] pci0000:80: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 28.726411] pci0000:bb: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 28.916656] pci0000:ba: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 29.152839] pci0000:b8: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 29.425808] pci0000:bc: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
> 29.718593] pci0000:b4: has invalid NUMA node(-1), default node of 0 now selected. Readjust it by writing to sysfs numa_node or contact your vendor for updates.
>
> look like actual problems. How can PCI devices not have a node assigned?

The above PCI devices do not have a node assigned because I downgraded
the bios to a older version that has not implemented the "Proximity Domain"
feature specified by APCI, which is optional feature, so the bios denied
that it is a bug of the bios.

>
> .
>

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