https://bugzilla.kernel.org/show_bug.cgi?id=203519
Bug ID: 203519
Summary: Linux is not bootable on Lenovo Thinkpad E485 due to
ACPI bug
Product: ACPI
Version: 2.5
Kernel Version: 4.15, 4.19, 5.0, 5.1-rc7
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Tables
Assignee: acpi_config-tab...@kernel-bugs.osdl.org
Reporter: ad...@maxxor.org
Regression: No
Created attachment 282627
--> https://bugzilla.kernel.org/attachment.cgi?id=282627&action=edit
dmesg output of successful boot with additional kernel parameters
Hello everyone,
Linux doesn't boot on Lenovo Thinkpad E485/585 without adding some kernel
parameters to the boot config. This also affects previous kernel versions. Some
people say it's a UEFI bug, but Lenovo doesn't seem to care, there are already
people posting in their forums since release complaining about this issue:
https://forums.lenovo.com/t5/ThinkPad-11e-Windows-13-E-and/ThinkPad-E485-E585-Firmware-bug-ACPI-IVRS-table/td-p/4191484
Notebook: Lenovo Thinkpad E485/585 series (with AMD Ryzen 5 2500U)
Tested kernel versions: 4.15, 4.19, 5.0, 5.1-rc7
Currently required additional kernel parameters: ivrs_ioapic[32]=00:14.0
ivrs_ioapic[33]=00:00.1 libata.force=1 iommu=pt
Boot with amd_iommu_dump=1:
[ 0.851042] AMD-Vi: Using IVHD type 0x11
[ 0.851401] AMD-Vi: device: 00:00.2 cap: 0040 seg: 0 flags: b0 info 0000
[ 0.851401] AMD-Vi: mmio-addr: 00000000feb80000
[ 0.851430] AMD-Vi: DEV_SELECT_RANGE_START devid: 00:01.0 flags: 00
[ 0.851431] AMD-Vi: DEV_RANGE_END devid: ff:1f.6
[ 0.851870] AMD-Vi: DEV_ALIAS_RANGE devid: ff:00.0 flags:
00 devid_to: 00:14.4
[ 0.851871] AMD-Vi: DEV_RANGE_END devid: ff:1f.7
[ 0.851875] AMD-Vi: DEV_SPECIAL(HPET[0]) devid: 00:14.0
[ 0.851876] AMD-Vi: DEV_SPECIAL(IOAPIC[33]) devid: 00:14.0
[ 0.851877] AMD-Vi: DEV_SPECIAL(IOAPIC[34]) devid: 00:00.1
[ 1.171028] AMD-Vi: IOMMU performance counters supported
I can provide more details if requested.
Kind regards,
Max
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