Re: [PATCH v2 2/2] module: Merge same-name module load requests

[Petr Pavlu]

On 11/16/22 17:03, Prarit Bhargava wrote:
> On 11/15/22 14:29, Luis Chamberlain wrote:
>> On Mon, Nov 14, 2022 at 04:45:05PM +0100, David Hildenbrand wrote:
>>> Note that I don't think the issue I raised is due to 6e6de3dee51a.
>>> I don't have the machine at hand right now. But, again, I doubt this will
>>> fix it.
>>
>> There are *more* modules processed after that commit. That's all. So
>> testing would be appreciated.
>>
> 
> Can anyone tell us if
> 
> https://lore.kernel.org/linux-pm/20221102195957.82871-1-stuart.w.hayes@xxxxxxxxx/
> 
> resolves the module loading delay problem?

This patch unfortunately makes no difference on my test system. In my case,
the kernel has already intel_pstate loaded when udev starts inserting a burst
of acpi_cpufreq modules. It then causes the init function acpi_cpufreq_init()
to immediately return once the check cpufreq_get_current_driver() fails. The
code modified by the patch is not reached at all.

Petr