https://bugzilla.kernel.org/show_bug.cgi?id=150561
Bug ID: 150561
Summary: my laptop boot slowly with acpi on
Product: ACPI
Version: 2.5
Kernel Version: kernel-4.7
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 226581
--> https://bugzilla.kernel.org/attachment.cgi?id=226581&action=edit
dmesg
my laptop boot very very slowly in my linux os, but if i add "acpi=off" in
grub, the system will becomes to work normal.
so i also tried "acpi=ht", but it still does not work. it seems only "acpi=off"
works.
I have tried kernel4.2, kernel4.4 and kernel4.7, this problem exists in all of
these kernel version.
and in some website, it said:
If acpi=off works and acpi=ht fails, then the issue is in the ACPI table
parsing code itself, or perhaps the SMP code.
So maybe it is related to SMP code or bios.
the following is the dmesg related to SMP:
[user@localhost ~]$ dmesg|grep -i smp
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
[ 0.034459] Freeing SMP alternatives memory: 32K (ffffffff81ea2000 -
ffffffff81eaa000)
[ 0.060737] smpboot: CPU0: Intel(R) Pentium(R) CPU N4200 @ 1.10GHz (family:
0x6, model: 0x5c, stepping: 0x9)
[ 0.061370] x86: Booting SMP configuration:
[ 0.086072] smpboot: Total of 4 processors activated (8781.51 BogoMIPS)
the attached is the whole dmesg.
Can someone tell me where the problem lies in? and how to solve it?
if you need more info, please tell me.
thanks a lot.
BTW, does it exist the newest acpi source branch i can try?
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