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From: Maximilian Luz <luzmaximilian@gmail.com>
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
Subject: Re: [BUG] recursive lock in mwifiex_uninit_sw
Date: Fri, 14 May 2021 15:57:37 +0200	[thread overview]
Message-ID: <bf0c987a-8830-0f44-cf82-bd378e87e000@gmail.com> (raw)
In-Reply-To: <ab4d00ce52f32bd8e45ad0448a44737e@bewaar.me>

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

      reply	other threads:[~2021-05-14 13:57 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-14 12:45 [BUG] recursive lock in mwifiex_uninit_sw dave
2021-05-14 13:57 ` Maximilian Luz [this message]

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