https://bugzilla.kernel.org/show_bug.cgi?id=208705
Bug ID: 208705
Summary: 100 ms delay in PCI initialization
Product: ACPI
Version: 2.5
Kernel Version: 5.7.6
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 290607
--> https://bugzilla.kernel.org/attachment.cgi?id=290607&action=edit
Linux 5.7.6 messages (output of `dmesg`)
On Acer TravelMate 5735Z with Debian Sid/unstable and Linux 5.7.6, over 100 ms
are spent in PnP ACPI init.
```
[ 0.000000] microcode: microcode updated early to revision 0xa0b, date =
2010-09-28
[ 0.000000] Linux version 5.7.0-1-amd64 ([email protected])
(gcc version 9.3.0 (Debian 9.3.0-14), GNU ld (GNU Binutils for Debian) 2.34) #1
SMP Debian 5.7.6-1 (2020-06-24)
[…]
[ 0.254356] pci 0000:00:1e.0: bridge window [mem 0xc0000000-0xfebfffff
window] (subtractive decode)
[ 0.360255] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12)
[…]
```
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