netdev - RE: Bug in drivers/net/ethernet/freescale/fec

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Date:	Mon, 16 Mar 2015 14:01:12 +0000
From:	"fugang.duan@...escale.com" <fugang.duan@...escale.com>
To:	Панов Андрей <rockford@...dex.ru>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: RE: Bug in drivers/net/ethernet/freescale/fec_main.c, TX is broken.
 In 4.0.0-rc3

From: Панов Андрей <rockford@...dex.ru> Sent: Monday, March 16, 2015 9:38 PM
> To: Duan Fugang-B38611; netdev@...r.kernel.org; linux-arm-kernel
> Subject: Re: Bug in drivers/net/ethernet/freescale/fec_main.c, TX is
> broken. In 4.0.0-rc3
> 
> Hi!
> 
> 16.03.2015, 12:21, "fugang.duan@...escale.com"
> <fugang.duan@...escale.com>:
> >
> > I try your case on i.MX6q sabresd board with net tree kernel.
> > root@...escale ~$ uname -r
> > 4.0.0-rc3-11071-gf00bbd2
> >
> > With below test steps for 10 time, the zero file size range from 20M
> > to 300M bytes, compare the md5sum checksum between i.MX6q and i.MX6q/PC
> host,  the checksum is the same.
> >
> > root@...escale ~$ rm zeros
> > root@...escale ~$ dd if=/dev/zero of=zeros bs=1M count=300
> > 300+0 records in
> > 300+0 records out
> > 314572800 bytes (300.0MB) copied, 1.811459 seconds, 165.6MB/s
> > root@...escale ~$ md5sum -b zeros
> > 0d97a9cd8bbd7ce75a2a76bb06258915  zeros root@...escale ~$ cp zeros
> > /mnt/nfs/ -f root@...escale ~$ rm zeros root@...escale ~$ cp
> > /mnt/nfs/zeros ./ root@...escale ~$ md5sum -b zeros
> > 0d97a9cd8bbd7ce75a2a76bb06258915  zeros
> >
> > Do you have any lost for reproduce the issue ?
> 
> Current net tree does not have this issue, it works fine. Thanks to all.
> 
> From git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
> 
> apx@...ra:~$ uname -r
> 4.0.0-rc3-00150-g10640d3-dirty
> 
> 
> --
>  Андрей

I test the commit f00bbd2 that include the patch 2b995f63987.
But cannot reproduce your issue. Pls double confirm it in your board.

Regards,
Andy
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