Installation causes system function to hang due to ksoftirqd 100% CPU usage

[JorDank88]

Specs/Info:

Kernel: 5.15.0 (specifically 5.15.0-102, but the error seems to occur across all 5.15 iterations)

`cat /etc/hosts 127.0.0.1 localhost 127.0.1.1 GlaDos

The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters `

ls /etc/apt/sources.list.d brave-browser-release.list openmw-openmw-jammy.list github-cli.list signal-xenial.list google-chrome.list teams.list maarten-fonville-android-studio-jammy.list virtualbox.list nordvpn.list winehq-jammy.sources official-package-repositories.list Steps to reproduce:

sudo apt update sudo apt upgrade sudo apt install make gcc build-essential git git clone https://github.com/lwfinger/rtw89.git cd rtw89 make

These warnings occur during the 'make' command:

Additionally, a large amount of 'Skipping BTF generation ... due to unavailability of vmlinux' not sure if that's a problem but figured I could include it

Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw89core.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw89pci.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw89pci.ko BTF [M] /home/jordank/Desktop/rtw89/rtw89pci.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw89pci.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8851b.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8851b.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8851b.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8851b.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8851be.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8851be.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8851be.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8851be.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8852a.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8852a.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8852a.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8852a.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8852ae.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8852ae.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8852ae.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8852ae.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8852b.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8852b.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8852b.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8852b.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8852be.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8852be.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8852be.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8852be.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8852c.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8852c.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8852c.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8852c.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8852ce.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8852ce.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8852ce.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8852ce.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8922a.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8922a.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8922a.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8922a.ko due to unavailability of vmlinux CC [M] /home/jordank/Desktop/rtw89/rtw_8922ae.mod.o LD [M] /home/jordank/Desktop/rtw89/rtw_8922ae.ko BTF [M] /home/jordank/Desktop/rtw89/rtw_8922ae.ko Skipping BTF generation for /home/jordank/Desktop/rtw89/rtw_8922ae.ko due to unavailability of vmlinux

sudo make install

Installation appears to finish successfully sudo make install make -C /lib/modules/5.15.0-101-generic/build M=/home/jordank/Desktop/rtw89 modules make[1]: Entering directory '/usr/src/linux-headers-5.15.0-101-generic' make[1]: Leaving directory '/usr/src/linux-headers-5.15.0-101-generic' Install rtw89 SUCCESS On restart, Kernel is broken due to ksoftirqd using 100% of CPU

Please let me know if any additional information can help address this issue, and I apologize in advance i'm not that good at this sort of thing.

[lwfinger]

The compile warnings and the BTF warnings are harmless. They are not causing your problem.

What distro are you using?

What wifi device do you have? Has it ever worked on your system?

Run the command 'sudo dmesg > dmesg.txt' and attach dmesg.txt to this issue.

[delbonis]

Also having this issue on another machine with an onboard realtek b852 chipset on a ASUS motherboard. NetworkManager wouldn't come up and anything that asked the kernel about network things like even sudo and ip a would hang. ksoftirqd was pegged at 100% CPU so it feels like it's hogging a lock in a busy loop or something. It's kinda annoying to get diagnostic data.

Distro is Linux mint 21.2 running kernel 5.15.0-106-generic. Will get dmesg when I have a chance to.

[dakejahl]

I am seeing the same issue on a jetson orin nano with jetpack 6 -- 5.15.136-tegra-ubuntu22.04_aarch64. The ksoftirqd pegging cpu at 100% and dmesg hangs.

Trying to use a Telit WE310K6-P https://www.telit.com/devices/we310k6/

0001:01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852
    Subsystem: Realtek Semiconductor Co., Ltd. Device b852
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 236
    IOMMU group: 3
    Region 0: I/O ports at 1000 [size=256]
    Region 2: Memory at 20a8000000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>
    Kernel driver in use: rtw89_8852be
    Kernel modules: rtw_8852be