| 2022-12-05 09:02:23 |
Robert Liu |
bug |
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added bug |
| 2022-12-05 10:51:57 |
Sebastien Bacher |
bug |
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added subscriber Ubuntu Sponsors Team |
| 2022-12-05 14:17:41 |
Robert Liu |
attachment added |
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libnl3_3.4.0-1ubuntu1.debdiff https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/1998765/+attachment/5634558/+files/libnl3_3.4.0-1ubuntu1.debdiff |
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| 2022-12-06 00:21:14 |
Robert Liu |
tags |
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orignate-from-lp1998578 |
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| 2022-12-06 03:31:58 |
Robert Liu |
affects |
libnl3 (Ubuntu) |
oem-priority |
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| 2022-12-06 03:31:58 |
Robert Liu |
oem-priority: assignee |
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Robert Liu (robertliu) |
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| 2022-12-06 03:32:30 |
Robert Liu |
bug task added |
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libnl3 (Ubuntu) |
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| 2022-12-06 03:33:06 |
Yuan-Chen Cheng |
tags |
orignate-from-lp1998578 |
oem-priority orignate-from-lp1998578 |
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| 2022-12-12 09:10:04 |
Robert Liu |
description |
When testing WCN3980 with 20.04 and UC20, WCN3980 is not able connect to an AP.
I tried a different libnl3 from BSP and found that WCN3980 can work correctly. The version used in BSP is 3.5.0.
I bisected the commits from 3.4.0 to 3.5.0 and found this commit[1] is the root cause.
According to the commit, it seems that the flag should be set for kernel later than 5.2.
[1] https://github.com/thom311/libnl/commit/7de65a051fb37ece16f896a7385073274b77a133 |
[ Impact ]
When testing Qualcomm qcs410 with WCN3980 with 20.04 and UC20, WCN3980 is not able connect to an AP.
However, with the libnl3 (3.5.0) from BSP, WCN3980 can work correctly.
After bisecting the commits from 3.4.0 to 3.5.0, this commit[1] is identified as the root cause.
According to the commit, the "NLA_F_NESTED" flag should be set for kernel later than 5.2.
[ Test Plan ]
Verify with the updated version, the WIFI module can:
1. scan WIFI networks
2. connect to an available network
3. access to the connected network
[ Where problems could occur ]
1. kernel versions without NLA_F_NESTED flag defined
This flag is introduced before Linux kernel v5 (checked v3.x and v4.x have it). It would not be a problem for an older kernel to understand/work with this change. Since the GA kernel is 5.4, so a generic image would still work.
2. Drivers don't use the NESTED flag.
According to hui.wang's input, this change should not affect drivers which don't use the NESTED flag. But, it'd be better to cover more Wifi modules.
[ Other Info ]
22.04 is using libnl3 3.0.5-0.1, so only 20.04 needs this patch.
[1] https://github.com/thom311/libnl/commit/7de65a051fb37ece16f896a7385073274b77a133 |
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| 2022-12-13 12:29:40 |
Lucas Kanashiro |
nominated for series |
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oem-priority/focal |
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| 2022-12-13 12:29:40 |
Lucas Kanashiro |
bug task added |
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oem-priority/focal |
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| 2023-01-10 06:56:36 |
Rex Tsai |
bug |
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added subscriber Rex Tsai |
| 2023-01-13 06:49:39 |
Timo Aaltonen |
nominated for series |
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Ubuntu Jammy |
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| 2023-01-13 06:49:39 |
Timo Aaltonen |
bug task added |
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libnl3 (Ubuntu Jammy) |
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| 2023-01-13 06:49:43 |
Timo Aaltonen |
libnl3 (Ubuntu): status |
New |
Fix Released |
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| 2023-01-13 06:50:01 |
Timo Aaltonen |
nominated for series |
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Ubuntu Focal |
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| 2023-01-13 06:50:01 |
Timo Aaltonen |
bug task added |
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libnl3 (Ubuntu Focal) |
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| 2023-01-13 06:50:08 |
Timo Aaltonen |
libnl3 (Ubuntu Jammy): status |
New |
Invalid |
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| 2023-01-17 08:54:53 |
Łukasz Zemczak |
libnl3 (Ubuntu Focal): status |
New |
Fix Committed |
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| 2023-01-17 08:54:54 |
Łukasz Zemczak |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2023-01-17 08:54:55 |
Łukasz Zemczak |
bug |
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added subscriber SRU Verification |
| 2023-01-17 08:54:57 |
Łukasz Zemczak |
tags |
oem-priority orignate-from-lp1998578 |
oem-priority orignate-from-lp1998578 verification-needed verification-needed-focal |
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| 2023-01-17 08:55:04 |
Łukasz Zemczak |
removed subscriber Ubuntu Sponsors Team |
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| 2023-01-18 05:55:34 |
Robert Liu |
tags |
oem-priority orignate-from-lp1998578 verification-needed verification-needed-focal |
oem-priority orignate-from-lp1998578 verification-done verification-done-focal |
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| 2023-01-18 05:57:23 |
Robert Liu |
oem-priority/focal: status |
New |
Fix Committed |
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| 2023-01-18 05:57:27 |
Robert Liu |
oem-priority/focal: importance |
Undecided |
High |
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| 2023-01-24 22:59:37 |
Chris Halse Rogers |
removed subscriber Ubuntu Stable Release Updates Team |
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| 2023-01-24 23:01:18 |
Launchpad Janitor |
libnl3 (Ubuntu Focal): status |
Fix Committed |
Fix Released |
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