Bug 210157 - iwlwifi: AC 9260: Regression on 5.9.x kernel
Summary: iwlwifi: AC 9260: Regression on 5.9.x kernel
Status: CLOSED DUPLICATE of bug 209913
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless-intel (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: Default virtual assignee for network-wireless-intel
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-11-12 10:16 UTC by Javier Marcet
Modified: 2020-11-12 10:39 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.9
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
5.8.18 dmesg (94.57 KB, text/plain)
2020-11-12 10:16 UTC, Javier Marcet 		Details
5.9.8 dmesg (98.47 KB, text/plain)
2020-11-12 10:19 UTC, Javier Marcet 		Details
5.8.18 iperf (1.22 KB, text/plain)
2020-11-12 10:20 UTC, Javier Marcet 		Details
5.8.18 iperf -R (1.17 KB, text/plain)
2020-11-12 10:20 UTC, Javier Marcet 		Details
5.9.8 iperf (1.22 KB, text/plain)
2020-11-12 10:21 UTC, Javier Marcet 		Details
5.9.8 iperf -R (1.17 KB, text/plain)
2020-11-12 10:21 UTC, Javier Marcet 		Details
5.8.18 lspci (51.55 KB, text/plain)
2020-11-12 10:22 UTC, Javier Marcet 		Details
5.9.8 lspci (51.83 KB, text/plain)
2020-11-12 10:22 UTC, Javier Marcet 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Javier Marcet 2020-11-12 10:16:52 UTC 
Created attachment 293633 [details]
5.8.18 dmesg

I am surprised nobody else reported this after 1 month of v5.9 being released.

I have verified this happens both on an Intel i9 XPS laptop and on an AMD Ryzen desktop, both with the same Intel Wireless-AC 9260 card.

The transfer speed tops out at 54mbps in one direction starting from v5.9.
Comment 1 Javier Marcet 2020-11-12 10:19:06 UTC 
Created attachment 293635 [details]
5.9.8 dmesg
Comment 2 Javier Marcet 2020-11-12 10:20:10 UTC 
Created attachment 293637 [details]
5.8.18 iperf
Comment 3 Javier Marcet 2020-11-12 10:20:57 UTC 
Created attachment 293639 [details]
5.8.18 iperf -R
Comment 4 Javier Marcet 2020-11-12 10:21:17 UTC 
Created attachment 293641 [details]
5.9.8 iperf
Comment 5 Javier Marcet 2020-11-12 10:21:44 UTC 
Created attachment 293643 [details]
5.9.8 iperf -R
Comment 6 Javier Marcet 2020-11-12 10:22:19 UTC 
Created attachment 293645 [details]
5.8.18 lspci
Comment 7 Javier Marcet 2020-11-12 10:22:43 UTC 
Created attachment 293647 [details]
5.9.8 lspci
Comment 8 Emmanuel Grumbach 2020-11-12 10:39:28 UTC 

*** This bug has been marked as a duplicate of bug 209913 ***
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