From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Marek Behun <marek.behun@nic.cz>
Cc: "Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Bjorn Helgaas" <helgaas@kernel.org>,
linux-pci@vger.kernel.org,
"Grégory Clement" <gregory.clement@free-electrons.com>,
"Antoine Ténart" <antoine.tenart@free-electrons.com>,
"Miquèl Raynal" <miquel.raynal@free-electrons.com>
Subject: Re: pci-aardvark ath9k arm64 issues
Date: Tue, 16 Jan 2018 11:21:53 +0100 [thread overview]
Message-ID: <20180116112153.5cd06eb0@windsurf> (raw)
In-Reply-To: <20180113002234.0ae646d6@nic.cz>
Hello Marek,
Thanks for your bug report!
On Sat, 13 Jan 2018 00:22:34 +0100, Marek Behun wrote:
> we are having a CPU stall issue with ath9k driver on pci-aardvark
> (Marvell Armada 3720 (arm64)).
>
> The ath9k driver loads correctly and the interface connects and for
> some time it works correctly, but then CPU stalls and kernel dumps
> self-detected stall on CPU.
>
> I don't know if this is issue with aardvark or whole arm64 (someone had
> a similar problem, see
> https://www.spinics.net/lists/linux-wireless/msg157038.html ), but
> ath10k doesn't have this problem.
>
> I am attaching the rcu_sched stall detection backtrace (although I
> don't know if contains needed information).
>
> Can you please point me how to debug/solve this issue?
Could you try to apply the following patches ?
https://patchwork.ozlabs.org/patch/819586/
https://patchwork.ozlabs.org/patch/819589/
https://patchwork.ozlabs.org/patch/819587/
https://patchwork.ozlabs.org/patch/819592/
https://patchwork.ozlabs.org/patch/819590/
https://patchwork.ozlabs.org/patch/819591/
https://patchwork.ozlabs.org/patch/819588/
And see if it helps? If it does help, could you try with just
https://patchwork.ozlabs.org/patch/819592/ applied ?
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
prev parent reply other threads:[~2018-01-16 10:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 23:22 pci-aardvark ath9k arm64 issues Marek Behun
2018-01-16 10:09 ` Lorenzo Pieralisi
2018-01-16 10:21 ` Thomas Petazzoni [this message]
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