Re: Intermittent re0 phy failure

On Wed, Jan 18, 2012 at 08:01:42PM -0500, Michael Butler wrote:
> On 01/18/12 19:54, YongHyeon PYUN wrote:
> > On Wed, Jan 18, 2012 at 05:48:47PM -0500, Michael Butler wrote:
> >> At random intervals, when re0 is without any significant load; idle for
> >> lengthy periods, I see ..
> >>
> >> kernel: re0: PHY read failed
> >> last message repeated 4 times
> >> kernel: re0: link state changed to DOWN
> >>
> >> Unplugging the cable and re-inserting is sufficient to restore
> >> functionality.
> >>
> >> kernel is _at_ SVN r230276
> >>
> >> Any ideas how to track this down?
> > 
> > Knowing which kind of controller you have would be more helpful.
> > Show me both re(4)/rgephy(4) related message from dmesg and
> > 'devinfo -rv | grep rgephy' output.
> > 
> 
> As requested:
> 
> dmesg:
> 
> re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F PCIe Gigabit Ethernet> port
> 0x2000-0x20ff mem 0xf0700000-0xf0700fff,0xf0200000-0xf0203fff irq 17 at
> device 0.0 on pci3
> re0: MSI count : 1
> re0: MSI-X count : 4
> re0: attempting to allocate 1 MSI-X vectors (4 supported)
> msi: routing MSI-X IRQ 257 to local APIC 0 vector 51
> re0: using IRQ 257 for MSI-X
> re0: Using 1 MSI-X message
> re0: ASPM disabled
> re0: Chip rev. 0x28000000
> re0: MAC rev. 0x00000000
> miibus0: <MII bus> on re0
> rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
> rgephy0: OUI 0x00e04c, model 0x0011, rev. 2
> rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX,
> 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master,
> 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow,
> 1000baseT-FDX-flow-master, auto, auto-flow
> 
> devinfo -rv | grep rgephy
>                 rgephy0 pnpinfo oui=0xe04c model=0x11 rev=0x2 at phyno=1
> 

Thanks a lot.
Would you try attached patch?