linux-kernel - Re: Warning at drivers/net/wireless/ath/ath10k/mac.c:5625 ath10k_bss_info

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Date:   Fri, 08 Mar 2019 12:58:02 +0200
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Gabriel C <nix.or.die@...il.com>
Cc:     Paul Menzel <pmenzel@...gen.mpg.de>, ath10k@...ts.infradead.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Warning at drivers/net/wireless/ath/ath10k/mac.c:5625 ath10k_bss_info_changed

Gabriel C <nix.or.die@...il.com> writes:

> Am Mo., 4. März 2019 um 12:59 Uhr schrieb Kalle Valo <kvalo@...eaurora.org>:
>>
>> Gabriel C <nix.or.die@...il.com> writes:
>>
>> > Am Mo., 4. März 2019 um 12:28 Uhr schrieb Paul Menzel <pmenzel@...gen.mpg.de>:
>> >
>> >> Resuming from ACPI S3 on the Dell XPS 13 9370 with Debian Sid/unstable,
>> >> Linux 4.19.20 showed the warning below. It’s not reproducible.
>>
>> [...]
>>
>> >> [ 3018.992916] Call Trace:
>> >> [ 3018.992921]  ? ath10k_conf_tx+0x7a/0x4b0 [ath10k_core]
>> >> [ 3018.992937]  ieee80211_bss_info_change_notify+0xab/0x1a0 [mac80211]
>> >> [ 3018.992946]  ieee80211_reconfig+0x661/0x12a0 [mac80211]
>> >> [ 3018.992962]  wiphy_resume+0x7f/0x120 [cfg80211]
>> >> [ 3018.992969]  ? wiphy_suspend+0x270/0x270 [cfg80211]
>> >> [ 3018.992971]  dpm_run_callback+0x59/0x150
>> >> [ 3018.992972]  device_resume+0x97/0x190
>> >> [ 3018.992973]  async_resume+0x19/0x30
>> >> [ 3018.992974]  async_run_entry_fn+0x39/0x160
>> >> [ 3018.992976]  process_one_work+0x1a7/0x3a0
>> >> [ 3018.992978]  worker_thread+0x30/0x390
>> >> [ 3018.992979]  ? pwq_unbound_release_workfn+0xd0/0xd0
>> >> [ 3018.992980]  kthread+0x112/0x130
>> >> [ 3018.992981]  ? kthread_bind+0x30/0x30
>> >> [ 3018.992983]  ret_from_fork+0x35/0x40
>> >> [ 3018.992984] ---[ end trace 3af618ca97bd4a0a ]---
>> >> ```
>> >>
>> >> Please find all Linux messages attached.
>> >
>> > I reported that twice and no one seems to care about.
>> >
>> > http://lists.infradead.org/pipermail/ath10k/2018-November/012398.html
>> > http://lists.infradead.org/pipermail/ath10k/2018-December/012658.html
>>
>> Does this patch help:
>>
>> ath10k: Drop WARN_ON()s that always trigger during system resume
>>
>> https://patchwork.kernel.org/patch/10837139/
>>
>
> Without to test this patch I can confirm it will help , I dropped the
> WARN_ON()'s in 4.19 already.
> If I remember right 4.19 has one WARN_ON() triggers while 4.20 got two.

Ok, thanks. I'll try to get this patch to 5.1.

-- 
Kalle Valo