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. -- You received this bug notification because you are a member of Kernel 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
