[ISSUE] ath: phy0: DMA failed to stop

[ISSUE] ath: phy0: DMA failed to stop

[mustaqimM]

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New issue by mustaqimM on void-packages repository

https://github.com/void-linux/void-packages/issues/36635

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
My wifi network has been dropping for a few versions ( I can't remember how many) with an error shown in `dmesg`:
```zsh
ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00006100
```
This occurs on `lts-5.10_1`, `5.15.30_1` and `mainline-5.16.16_1`, but so far not on `4.19.237_1`.

Connection is randomly lost and re-connection also occurs randomly. Restarting services like dhcpcd and wpa_supplicant (or separately iwd with dhcp), doesn't work.

### System

* xuname:  
  `Void 4.19.237_1 x86_64 GenuineIntel notuptodate rrmFFFFFFFFFFFFFFFF`

### Expected behavior
Network connection shouldn't be lost

### Actual behavior
Connection lost

### Steps to reproduce the behavior
Boot with any of the latest `5.x` versions of the kernel.

Re: ath: phy0: DMA failed to stop

[ologantr]

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New comment by ologantr on void-packages repository

https://github.com/void-linux/void-packages/issues/36635#issuecomment-1095299665

Comment:
Considering you wifi card is an ath one (judging by you dmesg output),
I think this is the same as #36447.
This issue was fixed in Linux versions 5.10.110, 5.15.33, 5.16.19 and 5.17.2.
None of those is in void-packages yet, though.

Re: [ISSUE] [CLOSED] ath: phy0: DMA failed to stop

[mustaqimM]

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Closed issue by mustaqimM on void-packages repository

https://github.com/void-linux/void-packages/issues/36635

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
My wifi network has been dropping for a few versions ( I can't remember how many) with an error shown in `dmesg`:
```zsh
ath: phy0: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00006100
```
This occurs on `lts-5.10_1`, `5.15.30_1` and `mainline-5.16.16_1`, but so far not on `4.19.237_1`.

Connection is randomly lost and re-connection also occurs randomly. Restarting services like dhcpcd and wpa_supplicant (or separately iwd with dhcp), doesn't work.

### System

* xuname:  
  `Void 4.19.237_1 x86_64 GenuineIntel notuptodate rrmFFFFFFFFFFFFFFFF`

### Expected behavior
Network connection shouldn't be lost

### Actual behavior
Connection lost

### Steps to reproduce the behavior
Boot with any of the latest `5.x` versions of the kernel.

Re: ath: phy0: DMA failed to stop

[mustaqimM]

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New comment by mustaqimM on void-packages repository

https://github.com/void-linux/void-packages/issues/36635#issuecomment-1100033747

Comment:
Thanks so much for tracking that down, it was exactly that, even ksoftirqd's usage of a core. It seems to have been resolved with 5.16.20