[PATCH 0/1][D] Stop thermal messages spamming the kernel log

Colin Ian King colin.king at canonical.com
Fri Jul 5 21:47:37 UTC 2019


Should be PATCH 0/1][SRU][D] Stop thermal messages spamming the kernel log.

On 05/07/2019 22:41, Colin King wrote:
> From: Colin Ian King <colin.king at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1824690
> 
> == SRU Justification Bionic/Disco ==
> 
> proc_thermal messages are spamming the kernel log when used in
> conjunction with thermal. This is because the message is not
> set at the correct kernel log level.
> 
> == Fix ==
> 
> Upstream fix 44c0c23725a16c8803b8809b87651405e8741e4d ("drivers:
> thermal: processor_thermal: Downgrade error message"). This is in
> 5.2 so not applicable for Eoan.
> 
> == Test case ==
> 
> Without the fix the kernel log is being spammed periodically with
> messages in the form:
> 
> [ 11.520358] proc_thermal 0000:00:00.1: Unsupported event [0x91]
> [ 16.532358] proc_thermal 0000:00:00.1: Unsupported event [0x91]
> [ 21.572719] proc_thermal 0000:00:00.1: Unsupported event [0x91]
> [ 26.580855] proc_thermal 0000:00:00.1: Unsupported event [0x91]
> 
> With the fix these messages are no longer appearing.
> 
> == Regression Potential ==
> 
> This changes the log level, so regression potential is very limited,
> unless some program is relying on this message for some particular
> reason.
> 
> Srinivas Pandruvada (1):
>   drivers: thermal: processor_thermal: Downgrade error message
> 
>  .../thermal/intel/int340x_thermal/processor_thermal_device.c    | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 




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