[Bug 208205] re0 watchdog timeout

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=208205

--- Comment #5 from Sean Bruno <sbruno at FreeBSD.org> ---
We're seeing this on one of our gateways in the FreeBSD cluster at bytemark. 
The interface will not come back up unless the machine is rebooted.

FreeBSD igw0.bme.freebsd.org 11.0-ALPHA6 FreeBSD 11.0-ALPHA6 #0 r302331: Sun
Jul  3 23:03:04 UTC 2016    
peter at build-11.freebsd.org:/usr/obj/usr/src/sys/CLUSTER11  amd64


re0 at pci0:3:0:0: class=0x020000 card=0x85051043 chip=0x816810ec rev=0x09
hdr=0x00
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller'
    class      = network
    subclass   = ethernet
    bar   [10] = type I/O Port, range 32, base 0xe800, size 256, enabled
    bar   [18] = type Prefetchable Memory, range 64, base 0xfdfff000, size
4096, enabled
    bar   [20] = type Prefetchable Memory, range 64, base 0xfdff8000, size
16384, enabled
    cap 01[40] = powerspec 3  supports D0 D1 D2 D3  current D0
    cap 05[50] = MSI supports 1 message, 64 bit 
    cap 10[70] = PCI-Express 2 endpoint MSI 1 max data 128(128) RO
                 link x1(x1) speed 2.5(2.5) ASPM disabled(L0s/L1)
    cap 11[b0] = MSI-X supports 4 messages, enabled
                 Table in map 0x20[0x0], PBA in map 0x20[0x800]
    cap 03[d0] = VPD
    ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
    ecap 0002[140] = VC 1 max VC0
    ecap 0003[160] = Serial 1 0000000000000000


re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port
0xe800-0xe8ff mem 0xfdfff000-0xfdffffff,0xfdff8000-0xfdffbfff irq 18 at device
0.0 on pci3
re0: Using 1 MSI-X message
re0: turning off MSI enable bit.
re0: Chip rev. 0x48000000
re0: MAC rev. 0x00000000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX,
100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT-FDX, 1000baseT-FDX-master,
1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, 
auto-flow
re0: Using defaults for TSO: 65518/35/2048
re0: Ethernet address: 08:60:6e:d7:31:d2

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