Bug 208703 - PnP ACPI init has 100 ms delay until quirk message
Summary: PnP ACPI init has 100 ms delay until quirk message
Status: NEW
Alias: None
Product: ACPI
Classification: Unclassified
Component: ACPICA-Core (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: acpi_acpica-core@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-07-27 09:13 UTC by Paul Menzel
Modified: 2020-07-27 09:18 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.7.6
Tree: Mainline
Regression: No


Attachments
Linux 5.7.6 messages (output of `dmesg`) (60.85 KB, text/plain)
2020-07-27 09:13 UTC, Paul Menzel
Details
Output of `acpidump` (254.25 KB, text/plain)
2020-07-27 09:18 UTC, Paul Menzel
Details

Description Paul Menzel 2020-07-27 09:13:47 UTC
Created attachment 290603 [details]
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 (debian-kernel@lists.debian.org) (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)
[…]
[    0.383219] pnp: PnP ACPI init
[    0.488229] pnp 00:00: disabling [io  0x164e-0x164f] because it overlaps 0000:00:1c.2 BAR 13 [io  0x1000-0x1fff]
[    0.488299] system 00:00: [io  0x0600-0x060f] has been reserved
[    0.488301] system 00:00: [io  0x0610] has been reserved
[    0.488303] system 00:00: [io  0x0800-0x080f] has been reserved
[    0.488305] system 00:00: [io  0x0810-0x0817] has been reserved
[    0.488307] system 00:00: [io  0x0820-0x0823] has been reserved
[    0.488308] system 00:00: [io  0x0400-0x047f] has been reserved
[    0.488310] system 00:00: [io  0x0500-0x057f] has been reserved
[    0.488313] system 00:00: [io  0xff2c-0xff2f] has been reserved
[    0.488316] system 00:00: [mem 0xf8000000-0xfbffffff] has been reserved
[    0.488318] system 00:00: [mem 0xfed1c000-0xfed1ffff] has been reserved
[    0.488320] system 00:00: [mem 0xfed10000-0xfed13fff] has been reserved
[    0.488322] system 00:00: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.488324] system 00:00: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.488326] system 00:00: [mem 0xfec00000-0xfec00fff] could not be reserved
[    0.488328] system 00:00: [mem 0xfed20000-0xfed8ffff] has been reserved
[    0.488330] system 00:00: [mem 0xfee00000-0xfee00fff] has been reserved
[    0.488338] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.488412] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.488500] pnp 00:02: Plug and Play ACPI device, IDs PNP0303 (active)
[    0.488598] pnp 00:03: Plug and Play ACPI device, IDs SYN1b1d SYN1b00 SYN0002 PNP0f13 (active)
[    0.488759] pnp: PnP ACPI: found 4 devices

The warning message is shown in `quirk_system_pci_resources()`. Is there an easy way to analyze this to get rid of the delay.

Please find all Linux messages attached.
Comment 1 Paul Menzel 2020-07-27 09:18:07 UTC
Created attachment 290605 [details]
Output of `acpidump`

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