Re: A question about acpi_early_init(), and want to invoke acpi_early_init() earlier

From: Dou Liyang
Date: Mon Jul 17 2017 - 20:53:54 EST


Hi, Julian

At 07/14/2017 11:01 PM, Julian Wollrath wrote:
Hi,

I reproduced it by the following command line:
...noapic acpi_sci=level...

the original dmesg is:

[ 0.000000] tsc: Fast TSC calibration using PIT

the broken dmesg is:

[ 0.001000] tsc: PIT calibration matches HPET. 1 loops

Is it right? If it is wrong, please give the right process for
reproducing.
yes, this is right, see [1] for the original thread.


Got it.

The earliest I could move the call of acpi_early_init() without
triggering the bug back than is shown in the patch at [2] but
unforunately I do not have access to the Thinkpad X121e I had back than
anymore, so I cannot help with regression testing.

Cheers,
Julian

[1] https://lkml.org/lkml/2014/3/10/123
[2] https://lkml.org/lkml/2014/3/11/424


These two links is really helpful for me.

Thanks,

dou.