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Atheros wifi problem

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  Atheros wifi problem Hilary Snaden <hilary.snaden@zoho.com> - 2020-08-05 19:40 +0200
    Re: Atheros wifi problem Sven Joachim <svenjoac@gmx.de> - 2020-08-05 20:00 +0200

#225904 — Atheros wifi problem

Following the recent discussion about Atheros AR9271 wifi no longer working.

After the most recent kernel update to 5.7.10-1 (2020-07-26), my AR9271 
wifi dongle is recognised again, but there is now a worse problem: if I 
use the dongle, the box gradually freezes over the course of around 5 to 
20 minutes, starting with network manager. If I unplug the dongle before 
the freeze spreads, the box unfreezes, else it requires a power cycle to 
revive it.

The internal wifi still works normally.

The only obvious error message relates to iwl-debug-yoyo.bin not being 
found.

Can anyone confirm that ath9k_htc was fixed from kernel 5.7.9? The 
kernel mailing list is ambiguous about whether the fix would be in 
5.7.11 or whether it appeared in 5.7.9.

And could this unpleasant bug be some kind of buffer overflow?

-- 
Hilary

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#225905

On 2020-08-05 18:01 +0100, Hilary Snaden wrote:

> Following the recent discussion about Atheros AR9271 wifi no longer working.
>
> After the most recent kernel update to 5.7.10-1 (2020-07-26), my
> AR9271 wifi dongle is recognised again, but there is now a worse
> problem: if I use the dongle, the box gradually freezes over the
> course of around 5 to 20 minutes, starting with network manager. If I
> unplug the dongle before the freeze spreads, the box unfreezes, else
> it requires a power cycle to revive it.
>
> The internal wifi still works normally.
>
> The only obvious error message relates to iwl-debug-yoyo.bin not being
> found.
>
> Can anyone confirm that ath9k_htc was fixed from kernel 5.7.9? The
> kernel mailing list is ambiguous about whether the fix would be in
> 5.7.11 or whether it appeared in 5.7.9.

I don't know anything about ath9k_htc, but the latest fixes for it
appeared in 5.7.11 ("ath9k: Fix general protection fault in
ath9k_hif_usb_rx_cb"[1] and "ath9k: Fix regression with Atheros
9271"[2]), so they are not in Debian yet.

Cheers,
       Sven


1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.7.y&id=b43063ff55858f73cbd44fc4496b3489c8bdfba4
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.7.y&id=dcb80ffe3825fb551a293491424695198b2e397d

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