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Potential fix for Celestica E1031 device hang#6125

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sumukhatv merged 1 commit intosonic-net:201811from
sumukhatv:celestica-e1031-hang
Dec 4, 2020
Merged

Potential fix for Celestica E1031 device hang#6125
sumukhatv merged 1 commit intosonic-net:201811from
sumukhatv:celestica-e1031-hang

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@sumukhatv
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@sumukhatv sumukhatv commented Dec 4, 2020

ADO: 24524571

- Why I did it
To prevent Celestica E1031 from going to hang state abruptly
- How I did it
Preventing CPU sleep; setting idle cstate to 0
- How to verify it

- Which release branch to backport (provide reason below if selected)

  • [- ] 201811
  • 201911
  • 202006

- Description for the changelog

Potential fix for Celestica E1031 hang issue

- A picture of a cute animal (not mandatory but encouraged)

@sumukhatv sumukhatv requested a review from lguohan December 4, 2020 03:26
@lguohan
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lguohan commented Dec 4, 2020

can you provide the max_cstate in running system?

@sumukhatv
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can you provide the max_cstate in running system?

$ cat /sys/module/intel_idle/parameters/max_cstate
9

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lguohan commented Dec 4, 2020

what about the value this change? it needs to be zero.

@sumukhatv
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what about the value this change? it needs to be zero.

With this change:
$ cat /sys/module/intel_idle/parameters/max_cstate
0

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5 participants