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Bug#1151176: linux-image-7.2.11+deb14-amd64: No wifi with Atheros AR9271 USB adapter

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  Bug#1151176: linux-image-7.2.11+deb14-amd64: No wifi with Atheros AR9271 USB adapter Salvatore Bonaccorso <carnil@debian.org> - 2026-10-17 21:20 +0200

#94523 — Bug#1151176: linux-image-7.2.11+deb14-amd64: No wifi with Atheros AR9271 USB adapter

Control: tags -1 + moreinfo

Hi,

On Sat, Oct 17, 2026 at 02:00:55PM -0400, Alex Krauss wrote:
> Package: src:linux
> Version: 7.2.11-1
> Severity: important
> X-Debbugs-Cc: debian-amd64@lists.debian.org
> User: debian-amd64@lists.debian.org
> Usertags: amd64
> 
> Dear Maintainer,
> 
> Wifi with a USB wifi adapter with AR9271 chip (TP-Link TL-WN722N) works fine
> with linux-image-7.2.9+deb14-amd64 but fails to initialize with linux-
> image-7.2.11+deb14-amd64 and linux-image-7.2.10+deb14-amd64. Running "modprobe
> -r ath9k_htc" always results in a "Kernel Panic, Fatal exception in interrupt",
> forcing a hard reboot. Running "sudo update-initramfs -u -k 7.2.11+deb14-amd64"
> (and the same with 7.2.10+deb14-amd64) has no effect on this issue after a
> reboot. Plugging in the wifi adapter into other USB ports also had no effect.

I suspect it is this one:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=90201351a862182bdabfc1ad1c97b1e1b6ed5931

Can you test the kernel with that patch (i.e. the revert) on top
applied and see if this resolves your problem?

If so it might be a duplicate of #1151097 and would merge both bugs
later.

Regards,
Salvatore

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