From: Kalle Valo <kvalo@codeaurora.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Jiri Slaby <jirislaby@kernel.org>,
Nick Kossifidis <mickflemm@gmail.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Ping-Ke Shih <pkshih@realtek.com>,
linux-wireless@vger.kernel.org,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: net/wireless/reg.c:144 suspicious rcu_dereference_check() usage!
Date: Fri, 22 Jan 2021 14:20:43 +0200 [thread overview]
Message-ID: <87v9bpb1t0.fsf@codeaurora.org> (raw)
In-Reply-To: <20210122105034.GF4867@zn.tnic> (Borislav Petkov's message of "Fri, 22 Jan 2021 11:50:34 +0100")
Borislav Petkov <bp@alien8.de> writes:
> On Fri, Jan 22, 2021 at 11:11:24AM +0100, Borislav Petkov wrote:
>> Hi,
>>
>> this triggers is on 5.11-rc3 + tip/x86/urgent (shouldn't matter tho),
>> 32-bit kernel:
>
> This looks like a multiple wireless drivers issue, this is on another
> 32-bit machine with ath5k this time:
>
> [ 23.810222] ath5k 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
> [ 23.847597] ath5k 0000:03:00.0: registered as 'phy0'
> [ 24.504999] ath: EEPROM regdomain: 0x65
> [ 24.516125] ath: EEPROM indicates we should expect a direct regpair map
> [ 24.527286] ath: Country alpha2 being used: 00
> [ 24.535435] ath: Regpair used: 0x65
>
> [ 24.551461] =============================
> [ 24.561941] WARNING: suspicious RCU usage
> [ 24.572030] 5.11.0-rc3+ #1 Not tainted
> [ 24.580276] -----------------------------
> [ 24.590764] net/wireless/reg.c:144 suspicious rcu_dereference_check() usage!
> [ 24.601730]
Can you try this commit:
51d62f2f2c50 cfg80211: Save the regulatory domain with a lock
https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211.git/commit/?id=51d62f2f2c50
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2021-01-22 12:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 10:11 net/wireless/reg.c:144 suspicious rcu_dereference_check() usage! Borislav Petkov
2021-01-22 10:50 ` Borislav Petkov
2021-01-22 12:20 ` Kalle Valo [this message]
2021-01-22 12:57 ` Borislav Petkov
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