Subject: Re: PROBLEM: Oops - Null pointer dereference in brcm80211/brcmfmac
 [BCM4350]
To:     Aaron Blair <aaron@aaronpb.me>,
        Arend van Spriel <arend.vanspriel@broadcom.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        Chi-Hsien Lin <chi-hsien.lin@cypress.com>,
        Wright Feng <wright.feng@cypress.com>
Cc:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        "brcm80211-dev-list.pdl@broadcom.com" 
        <brcm80211-dev-list.pdl@broadcom.com>,
        "brcm80211-dev-list@cypress.com" <brcm80211-dev-list@cypress.com>
References: <20190212055731.gxy3e3uulztketbf@datkip>
From:   =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5@gmail.com>
Message-ID: <6f2061fe-b734-1bb4-6608-db8c3fcd1363@gmail.com>
Date:   Thu, 14 Feb 2019 13:25:08 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
 Thunderbird/60.5.0
MIME-Version: 1.0
In-Reply-To: <20190212055731.gxy3e3uulztketbf@datkip>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

On 12.02.2019 06:57, Aaron Blair wrote:
> [18990.872335] brcmfmac: brcmf_cfg80211_get_station: GET STA INFO failed, -12
> [18990.872433] brcmfmac: brcmf_msgbuf_tx_ioctl: Failed to reserve space in commonring
> [18990.872439] brcmfmac: brcmf_cfg80211_get_tx_power: error (-12)

FullMAC firmware (the one running on card's ARM CPU) has crashed.


> Upon trying to rmmod && modload brcmfmac, I receive the oops dump included below, and am unable to continue using the wireless NIC until I reboot.

Interestingly I've experienced the same problem (for the first time)
last week. I started working on it but didn't achieve anything yet.