>Synopsis: Loss of connection on em interfaces
>Category: system
>Environment:
System : OpenBSD 5.8
Details : OpenBSD 5.8-current (GENERIC.MP) #1410: Fri Oct 2
15:26:22 MDT 2015
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
I updated my router to latest snapshot on 1.10. Yesterday I noticed
that my desktop didn't get IP address from my routers DHCP server.
Curiously the wireless connections still worked. I also tested with my
laptop using another port in the router but that didn't work either.
I also tested using static IP's but didn't get it to work.
I have bridged setup such that that athn0 listens on wireless traffic and is
part of bridge0 which contains the wired interfaces em1 - em4. em0 is the egress
interface. My server which is using static IP address and is connected to em4
seems to work.
When looking at the logs I see the dhcp server is sending the DHCPOFFERs but
clients don't seem to get them.
>How-To-Repeat:
Try to get IP from DHCP server with em interface.
>Fix:
As a workaround the network seems to work for some time after a reboot.
dmesg:
OpenBSD 5.8-current (GENERIC.MP) #1410: Fri Oct 2 15:26:22 MDT 2015
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 2119761920 (2021MB)
avail mem = 2051452928 (1956MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.6 @ 0x9f800 (22 entries)
bios0: vendor American Megatrends Inc. version "080016" date 09/28/2011
acpi0 at bios0: rev 2
acpi0: sleep states S0 S1 S4 S5
acpi0: tables DSDT FACP APIC MCFG OEMB HPET GSCI
acpi0: wakeup devices P0P1(S4) PS2K(S4) PS2M(S4) USB0(S4) USB1(S4) USB2(S4)
USB5(S4) EUSB(S4) USB3(S4) USB4(S4) USB6(S4) USBE(S4) P0P4(S4) P0P5(S4)
P0P6(S4) P0P7(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Atom(TM) CPU D525 @ 1.80GHz, 1800.19 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF,SENSOR
cpu0: 512KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 7 var ranges, 88 fixed ranges
cpu0: apic clock running at 199MHz
cpu0: mwait min=64, max=64, C-substates=0.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Atom(TM) CPU D525 @ 1.80GHz, 1799.99 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF,SENSOR
cpu1: 512KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 1 (application processor)
cpu2: Intel(R) Atom(TM) CPU D525 @ 1.80GHz, 1799.99 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF,SENSOR
cpu2: 512KB 64b/line 8-way L2 cache
cpu2: smt 1, core 0, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Atom(TM) CPU D525 @ 1.80GHz, 1799.99 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,NXE,LONG,LAHF,PERF,SENSOR
cpu3: 512KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 20, 24 pins
ioapic0: misconfigured as apic 1, remapped to apid 4
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 6 (P0P1)
acpiprt2 at acpi0: bus 1 (P0P4)
acpiprt3 at acpi0: bus 2 (P0P5)
acpiprt4 at acpi0: bus 3 (P0P6)
acpiprt5 at acpi0: bus 4 (P0P7)
acpiprt6 at acpi0: bus 5 (P0P8)
acpiprt7 at acpi0: bus -1 (P0P9)
acpicpu0 at acpi0: C1(@1 halt!)
acpicpu1 at acpi0: C1(@1 halt!)
acpicpu2 at acpi0: C1(@1 halt!)
acpicpu3 at acpi0: C1(@1 halt!)
acpibtn0 at acpi0: SLPB
acpibtn1 at acpi0: PWRB
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Pineview DMI" rev 0x02
vga1 at pci0 dev 2 function 0 "Intel Pineview Video" rev 0x02
intagp0 at vga1
agp0 at intagp0: aperture at 0xd0000000, size 0x10000000
inteldrm0 at vga1
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1024x768
wsdisplay0 at vga1 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel Pineview Video" rev 0x02 at pci0 dev 2 function 1 not configured
uhci0 at pci0 dev 26 function 0 "Intel 82801I USB" rev 0x02: apic 4 int 16
uhci1 at pci0 dev 26 function 1 "Intel 82801I USB" rev 0x02: apic 4 int 21
uhci2 at pci0 dev 26 function 2 "Intel 82801I USB" rev 0x02: apic 4 int 19
ehci0 at pci0 dev 26 function 7 "Intel 82801I USB" rev 0x02: apic 4 int 18
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 82801I HD Audio" rev 0x02: msi
azalia0: codecs: VIA/0x4397
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 82801I PCIE" rev 0x02: msi
pci1 at ppb0 bus 1
ppb1 at pci0 dev 28 function 1 "Intel 82801I PCIE" rev 0x02: msi
pci2 at ppb1 bus 2
athn0 at pci2 dev 0 function 0 "Atheros AR9281" rev 0x01: apic 4 int 17
athn0: AR9280 rev 2 (2T2R), ROM rev 22, address 68:a3:c4:51:44:5c
ppb2 at pci0 dev 28 function 2 "Intel 82801I PCIE" rev 0x02: msi
pci3 at ppb2 bus 3
em0 at pci3 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address
00:30:18:a2:6c:ed
ppb3 at pci0 dev 28 function 3 "Intel 82801I PCIE" rev 0x02: msi
pci4 at ppb3 bus 4
em1 at pci4 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address
00:30:18:a2:6c:ee
ppb4 at pci0 dev 28 function 4 "Intel 82801I PCIE" rev 0x02: msi
pci5 at ppb4 bus 5
xhci0 at pci5 dev 0 function 0 "ASMedia ASM1042 xHCI" rev 0x00: msi
usb1 at xhci0: USB revision 3.0
uhub1 at usb1 "ASMedia xHCI root hub" rev 3.00/1.00 addr 1
uhci3 at pci0 dev 29 function 0 "Intel 82801I USB" rev 0x02: apic 4 int 23
uhci4 at pci0 dev 29 function 1 "Intel 82801I USB" rev 0x02: apic 4 int 19
uhci5 at pci0 dev 29 function 2 "Intel 82801I USB" rev 0x02: apic 4 int 18
ehci1 at pci0 dev 29 function 7 "Intel 82801I USB" rev 0x02: apic 4 int 23
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb5 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x92
pci6 at ppb5 bus 6
em2 at pci6 dev 4 function 0 "Intel 82541GI" rev 0x05: apic 4 int 18, address
00:30:18:a4:ef:5b
em3 at pci6 dev 6 function 0 "Intel 82541GI" rev 0x05: apic 4 int 19, address
00:30:18:a4:ef:5c
em4 at pci6 dev 7 function 0 "Intel 82541GI" rev 0x05: apic 4 int 16, address
00:30:18:a4:ef:5d
pcib0 at pci0 dev 31 function 0 "Intel 82801IR LPC" rev 0x02
ahci0 at pci0 dev 31 function 2 "Intel 82801I AHCI" rev 0x02: msi, AHCI 1.2
ahci0: port 0: 3.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD3200BEKT-0, 11.0> SCSI3 0/direct
fixed naa.50014ee2ad93bfb2
sd0: 305245MB, 512 bytes/sector, 625142448 sectors
ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x02: apic 4 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x51: 2GB DDR3 SDRAM PC3-10600 SO-DIMM
usb3 at uhci0: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb4 at uhci1: USB revision 1.0
uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb5 at uhci2: USB revision 1.0
uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb6 at uhci3: USB revision 1.0
uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb7 at uhci4: USB revision 1.0
uhub7 at usb7 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb8 at uhci5: USB revision 1.0
uhub8 at usb8 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
com1: probed fifo depth: 15 bytes
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (234a8e0d4735f34e.a) swap on sd0b dump on sd0b
usbdevs:
Controller /dev/usb0:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
port 3 powered
port 4 powered
port 5 powered
port 6 powered
Controller /dev/usb1:
addr 1: super speed, self powered, config 1, xHCI root hub(0x0000),
ASMedia(0x1b21), rev 1.00
port 1 disabled
port 2 disabled
port 3 disabled
port 4 disabled
Controller /dev/usb2:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
port 3 powered
port 4 powered
port 5 powered
port 6 powered
Controller /dev/usb3:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb4:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb5:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb6:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb7:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
