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Bug#1041482: kernel: pnp 00:0a: disabling [mem …-…] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff]

Started by"Al Ma" <alma0@ro.ru>
First post2023-07-19 17:00 +0200
Last post2023-07-19 17:00 +0200
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  Bug#1041482: kernel: pnp 00:0a: disabling [mem …-…] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff] "Al Ma" <alma0@ro.ru> - 2023-07-19 17:00 +0200

#79641 — Bug#1041482: kernel: pnp 00:0a: disabling [mem …-…] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff]

From"Al Ma" <alma0@ro.ru>
Date2023-07-19 17:00 +0200
SubjectBug#1041482: kernel: pnp 00:0a: disabling [mem …-…] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff]
Message-ID<GTgOJ-1jOY-5@gated-at.bofh.it>

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Package: linux-image-6.1.0-10-amd64
Version: 6.1.37-1
In the journal of a laptop Lenovo ThinkPad T14s Gen1, connected to a docking station ThinkPad Thunderbolt 3 Dock Gen 2/Workstation Dock Gen 2 Type 40 AN (which is powered by a 135 W AC Adapter ADL135NCC3A) and to a monitor Philips 275B1 via a HMDI cable, we discovered the following four warnings (last four lines are yellow) generated at boot:
Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: pnp: PnP ACPI init Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [io  0x1800-0x18fe] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [mem 0xfd000000-0xfd69ffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [mem 0xfd6b0000-0xfd6cffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [mem 0xfd6f0000-0xfdffffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [mem 0xfe000000-0xfe01ffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [mem 0xfe200000-0xfe7fffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:00: [mem 0xff000000-0xffffffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:01: [io  0x2000-0x20fe] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:02: [io  0x0680-0x069f] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:02: [io  0x164e-0x164f] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:04: [io  0x1854-0x1857] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x1800-0x189f] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0800-0x087f] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0880-0x08ff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0900-0x097f] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0980-0x09ff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0a00-0x0a7f] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0a80-0x0aff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0b00-0x0b7f] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x0b80-0x0bff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x15e0-0x15ef] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x1600-0x167f] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [io  0x1640-0x165f] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xf0000000-0xf7ffffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xfed10000-0xfed13fff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xfed18000-0xfed18fff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xfed19000-0xfed19fff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xfeb00000-0xfebfffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xfed20000-0xfed3ffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:07: [mem 0xfed90000-0xfed93fff] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfed10000-0xfed17fff] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfed18000-0xfed18fff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfed19000-0xfed19fff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xf0000000-0xf7ffffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfed20000-0xfed3ffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfed90000-0xfed93fff] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfed45000-0xfed8ffff] could not be reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:08: [mem 0xfee00000-0xfeefffff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: system 00:09: [mem 0xfe038000-0xfe038fff] has been reserved Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: pnp 00:0a: disabling [mem 0x000c0000-0x000c3fff] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff] Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: pnp 00:0a: disabling [mem 0x000c8000-0x000cbfff] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff] Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: pnp 00:0a: disabling [mem 0x000d0000-0x000d3fff] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff] Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: pnp 00:0a: disabling [mem 0x000d8000-0x000dbfff] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff]
As the laptop has some issues later (e.g., the contents of the external and internal screens do not fully match in tty text mode: the output of the external monitor is cut below), we'd like to know the extent and consequences of the above four warnings “pnp 00:0a: disabling [mem 0x000…-0x000…] because it overlaps 0000:00:02.0 BAR 6 [mem 0x000c0000-0x000dffff]”. I plain English, what do they tell us? What do they warn us about, and which actions should we undertake to avoid whichever havoc they might promise?
Gratefully,
AlMa

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