1)Sticker on the TP-Link box says "Version 1.10"
2)It's a custom PC (parts from all over the place), so it has no
"sticker" or something similar.
3)I hadn't tested the particular device on previous
kernels/installations on this PC. The device works as expected on
machines with USB 2.0 ports.
4)Cannot boot into a live environment (no CD drive), and the PC cannot
boot via USB (doublechecked BIOS settings, and also tried to boot from a
couple of verified working USB images).
I installed the latest upstream kernel (4.17.0-041700-generic), booted
normally, inserted the USB but the problem still persists (lots of dmesg traces
and a 100% load that makes the system almost unresponsive). According to the
instructions, I am marking the bug "Confirmed" and adding the tag
"kernel-bug-exists-upstream".
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags removed: bionic needs-upstream-testing
** Tags added: kernel-bug-exists-upstream
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1775230
Title:
TP-LINK TL-WN722N causes 100% CPU usage due to trace logging
Status in linux package in Ubuntu:
Confirmed
Bug description:
Hello.
Running Ubuntu 18.04 (4.15.0-22-generic), after plugging my TP-LINK
TL-WN722N into the USB port, the CPU usage goes to 100%, and there are
multiple reports of "stack traces" in dmesg.
The attached snippet repeats multiple consecutive times in the dmesg
output (albeit with a different trace id).
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775230/+subscriptions
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