From: Sujith Manoharan <sujith@msujith.org>
To: Andrej Gelenberg <andrej.gelenberg@udo.edu>
Cc: <linux-kernel@vger.kernel.org>,
Rajkumar Manoharan <rmanohar@qti.qualcomm.com>,
Felix Fietkau <nbd@openwrt.org>,
"John W. Linville" <linville@tuxdriver.com>
Subject: Re: ath: phy1: DMA failed to stop in 10 ms
Date: Sat, 29 Nov 2014 06:36:01 +0530 [thread overview]
Message-ID: <21625.7161.847488.931468@gargle.gargle.HOWL> (raw)
In-Reply-To: <20141129015934.1d2925d5@bigpc>
Andrej Gelenberg wrote:
> i got some problems with my Qualcomm Atheros AR9485 wlan pcie card. I
> use my card as access point (with hotspotd) on amd64 machine. I use
> self compiled vanilla kernel 3.17.4 and a get a lot of
> "DMA failed to stop" messages in my kernel log. I found some reports on
> similar errors for *wrt, ubuntu and other distros in various
> operation modes (ap and client). Increasing the timeout in mac.c to 100
> ms do not help. iommu=soft do not help either and GART iommu is not an
> option (usb don't work for me with amd_iommu=off). I found this patch:
> https://dev.openwrt.org/browser/trunk/package/mac80211/patches/552-ath9k_rx_dma_stop_check.patch?rev=34910 ,
> which seems to apply to my problem, but i am not sure if it is a proper
> solution.
Can you please open a bug on bugzilla.kernel.org ?
Sujith
prev parent reply other threads:[~2014-11-29 1:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-29 0:59 Andrej Gelenberg
2014-11-29 1:06 ` Sujith Manoharan [this message]
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