netdev - Re: [PATCH net-next 1/1] net: fec: Fix NAPI race

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Message-Id: <20141216.152452.1492750403664993087.davem@davemloft.net>
Date:	Tue, 16 Dec 2014 15:24:52 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	b38611@...escale.com
Cc:	netdev@...r.kernel.org, R49496@...escale.com,
	bhutchings@...arflare.com, stephen@...workplumber.org
Subject: Re: [PATCH net-next 1/1] net: fec: Fix NAPI race

From: Fugang Duan <b38611@...escale.com>
Date: Tue, 16 Dec 2014 18:25:58 +0800

> Do camera capture test on i.MX6q sabresd board, and save the capture data to
> nfs rootfs. The command is:
> gst-launch-1.0 -e imxv4l2src device=/dev/video1 num-buffers=2592000 ! tee name=t !
> queue ! imxv4l2sink sync=false t. ! queue ! vpuenc ! queue ! mux. pulsesrc num-buffers=3720937
> blocksize=4096 ! 'audio/x-raw, rate=44100, channels=2' ! queue ! imxmp3enc ! mpegaudioparse !
> queue ! mux. qtmux name=mux ! filesink location=video_recording_long.mov
> 
> After about 10 hours running, there have net watchdog timeout kernel dump:
 ...
> There might have a race in napi_schedule(), leaving interrupts disabled forever.
> After these patch, the case still work more than 40 hours running.
> 
> Signed-off-by: Fugang Duan <B38611@...escale.com>

Applied, thanks.
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