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Re: Ath10k on XPS 9380 regularly disconnects

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at 16:37, Kalle Valo <kvalo@xxxxxxxxxxxxxx> wrote:

Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> writes:

at 23:43, Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> wrote:

at 01:05, Kalle Valo <kvalo@xxxxxxxxxxxxxx> wrote:

+ ath10k list
- netdev & linux-kernel

Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> writes:

There’s an issue that ath10k disconnects at regular basis [1], on
Linux kernel 4.18.

Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.

Is there already a fix in upstream kernel?

I'm not aware of any fixes related to this. Is this a regression? In
other words, is there a known version of ath10k or firmware which didn't
have this problem?

We know this issue happen on kernel v4.15 and v4.18, but kernels
before v4.15 were not tested.

The issue happens with Google Mesh, which has 802.11ac capability.

I haven’t been able to reproduce the issue with an 802.11n router (yet).

Do I need a special WiFi router which support RX reorder to reproduce
the issue?

It's introduced by commit c545070e404b (“ath10k: implement rx reorder
support”).

I don't understand your question at all.

As far as I understand, the issue "failed to pop paddr list: -2” happens because ath10k_htt_rx_pop_paddr() fails to find skb in skb_table, hence trigger the warning.

Those function are introduced by commit "ath10k: implement rx reorder support”.

Since I’ve never seen such issue on my WiFi routers, while it happens to Stephan frequently, so I want to know if the “RX reorder support” is a feature that’s only supported by certain WiFi routers.

Kai-Heng


--
Kalle Valo





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