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SubjectRE: r8169 hangs machine on kernel boot (bisected)
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Hello,

please use the patch of the attatched file to check if it fix the issue. Thanks.

Best Regards,
Hayes


> -----Original Message-----
> From: Alexander Wuerstlein [mailto:arw@arw.name]
> Sent: Saturday, February 19, 2011 1:30 AM
> To: Hayeswang
> Cc: 'David S. Miller'; linux-kernel@vger.kernel.org; 'franois romieu'
> Subject: Re: r8169 hangs machine on kernel boot (bisected)
>
> Hello,
>
> On 11-02-18 15:01, hayeswang <hayeswang@realtek.com> wrote:
> > Hello,
> > > I've just tried to boot a new computer featuring a Realtek r8168
> > > onboard (lspci calls it Realtek Semiconductor Co., Ltd.
> > > RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168]
> > > (rev 04), see [1]) network chip with kernel
> > > 2.6.38-rc5 and current git. Both hang on boot just after
> USB device
> > > initialization and just before the kernel usually does DHCP. The
> > > previous 2.6.37 didn't hang on boot, but showed strange behaviour
> > > (only 10MBit half duplex on autonegotiation, tons of
> errors on the
> > > switch interface[2]) which is why I tried the newer
> kernel in hopes that there would be fixes.
> > >
> > > I bisected the hang-before-dhcp bug down to commit 'r8169: magic.'
> > > (b646d90053f887c1bc243191e693a9b02d09f2c2, also see [1]).
> Since the
> > > commit really does its description justice and looks like
> some weird
> > > hardware magic, I'd like to ask the wizards on how to
> proceed with fixing it.
> >
> > I have try the 8168DP and it wouldn't hang. I think I need
> more information.
> > Could you give the information about the motherboard and
> the version of BIOS.
> > Besides, please use the realtek driver, and dump the MAC
> information
> > by using "ethtool -d eth0". These are helpful to find out
> what happens. Thanks.
>
> I'm sorry that it took me so long to answer, I've had some
> problems booting the machine today since the PXE-Client
> didn't get any DHCP requests through. I'm not sure if its
> related, the problem cleared up after I opened up the machine
> to get the motherboard data and stuff.
>
> Long story short, new files 'bios', 'hardware' and 'ethtool-d' in
> http://wwwcip.cs.fau.de/~snalwuer/kernel-r8169
> Bios revision is the latest available from Fujitsu for that hardware.
> Hardware numbers and serials are accurate, but the
> inscriptions on the chips I suspected to be PHYs were very
> hard to read, so expect errors.
> The 'ethtool-d' is especially curious, since it consists of
> only 'FF'-bytes. The ethtool register dump was taken on a
> 2.6.37 with r8168 as a module.
>
> fujitsu.com also has some (limited, end-user-focused)
> hardware documentation if you enter the serial number
> 'YL7E003277' on http://ts.fujitsu.com/support/downloads.html
>
> If you need any further information, don't hesitate to ask.
>
>
>
> Ciao,
>
> Alexander Wuerstlein.
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