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[217.229.163.105]) by smtp.gmail.com with ESMTPSA id v17sm6509828wrd.89.2021.05.14.06.57.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 14 May 2021 06:57:38 -0700 (PDT) To: dave@bewaar.me Cc: amitkarwar@gmail.com, davem@davemloft.net, ganapathi017@gmail.com, huxinming820@gmail.com, johannes.berg@intel.com, kuba@kernel.org, kvalo@codeaurora.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, sharvari.harisangam@nxp.com References: Subject: Re: [BUG] recursive lock in mwifiex_uninit_sw From: Maximilian Luz Message-ID: Date: Fri, 14 May 2021 15:57:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/14/21 14:45 AM, dave@bewaar.me wrote: > A firmware crash of the Marvell 88W8897, which are spurious on Microsoft > Surface devices, will unload/reset the device. However this can also > fail > in more recent kernels, which can cause more problems since the driver > does not unload. This causes programs trying to reach the network or > networking devices to hang which in turn causes a reboot/poweroff to > hang. > > This can happen on the following fedora rawhide kernels: > - 5.12.0-0.rc8.20210423git7af08140979a.193.fc35.x86_64 [1] > - 5.13.0-0.rc1.20210512git88b06399c9c7.15.fc35.x86_64 [2] > > The latter seems to be more consistent in triggering this behaviour > (and crashing the firmware). If someone can give me some pointers > I would gladly help and debug this. I believe the same issue (with slightly different symptoms) is also reported in https://lore.kernel.org/linux-wireless/98392296-40ee-6300-369c-32e16cff3725@gmail.com/ See also https://lore.kernel.org/linux-wireless/522833b9-08c1-f470-a328-0e7419e86617@gmail.com/ for more details. Regards, Max