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Tasklist

FS#78910 - [linux] iwlwifi keeps dropping connection

Attached to Project: Arch Linux
Opened by Paulo Matos (pmatos) - Wednesday, 28 June 2023, 06:40 GMT
Last edited by Toolybird (Toolybird) - Sunday, 30 July 2023, 22:31 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To No-one
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

I have an intel board on a Dell Precision notebook.

0000:00:14.3 Network controller: Intel Corporation Alder Lake-P PCH CNVi WiFi (rev 01)
Subsystem: Intel Corporation Wi-Fi 6E AX211 160MHz
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
IOMMU group: 12
Region 0: Memory at 6289294000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

dmesg dump is attached.

Wifi connection at home is very stable and I never have problems when connected via cable but wifi keeps dropping. Sometimes when it reconnects, it's also extremelly slow by a 10x factor.
Let me know what further information I can provide to aid debugging this.
(application/x-gzip)    dmesg.log.gz (30 KiB)
This task depends upon

Closed by  Toolybird (Toolybird)
Sunday, 30 July 2023, 22:31 GMT
Reason for closing:  Upstream
Additional comments about closing:  If still happening with latest kernels, please report upstream as suggested.
Comment by Toolybird (Toolybird) - Wednesday, 28 June 2023, 07:45 GMT
If it works on an earlier kernel (e.g. LTS) it's a kernel regression. General advice for debugging kernel regressions [1]. You should also definitely try 6.4 kernel in [core-testing]. Maybe also try an earlier firmware pkg. Otherwise you'll likely have to report it upstream to the kernel folks. Please let us know what you find out.

[1] https://wiki.archlinux.org/title/Kernel#Debugging_regressions
Comment by Paulo Matos (pmatos) - Wednesday, 28 June 2023, 08:04 GMT
I mostly have been working on cable which has no issue but the few times I worked on wifi, I noticed the same problem. I think this is not recent. I will have to try a new kernel and see, will keep this task updated.

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