So, first of all: Sorry for (kinda) 'reopening' this thread after such a long
time.
Today I noticed something very strange. One of my (16) CPU cores was pinned at
100%. After a bit of googling I stumbled upon this thread and read about people
pointing towards USB.
So what I did was unplugging everything except for my keyboard and mouse.
Then, one at a time I plugged everything back in until the core got loaded too
100% again. Turns out it's an USB Hub while nothing is plugged in. This stays
that way (even if I plug anything in) until I plug in a specific device: A SATA
to USB adapter/bridge *with an SSD attached*
lsusb shows it as:
Bus 008 Device 005: ID 174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s
bridge
I'm running Ubuntu 19.10 with kernel 5.3.0-13-generic.
Is there a fix yet?
If not, I hope I can contribute to fixing/diagnosing this bug.
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1488426
Title:
High CPU usage of kworker/ksoftirqd
Status in HWE Next:
New
Status in linux package in Ubuntu:
Confirmed
Bug description:
kworker consuming 71.5% cpu resource
ksoftirqd consuming 28.9% cpu resource
It leads to power consumption issue and sometimes leads to BT does not
work.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1488426/+subscriptions
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