Hi misc@,
My OpenBSD VPSs hosted by ramnode.com can't get ipv6 addresses using
autoconf. I don't know if this is an OpenBSD bug or if ramnode.com is
behaving badly.
In /var/log/messages, after the kernel boot messages, I see
"slaacd[34007]: sendmsg: Can't assign requested address". ifconfig
doesn't show any inet6 addresses except the link-local fe80::... one.
Any idea what might be happening?
More details:
I tried with 6.9, 7.0 and a recent snapshot, and see the above
behaviour. With 6.9 and the snapshot, I started with a fresh vm image,
entering "autoconf" for the ipv6 config.
I've confirmed (by some fiddling) that
the log message is printed by the log_warn("sendmsg") call in
sbin/slaacd/frontend.c, but that's all I've figured out.
Other information:
- Ramnode has a note [0] about needing to fiddle with
sys/netinet6/nd6_nbr.c to get ipv6 working, at least for those using
"SolusVM". But I suspect that's not the issue here, for two reasons:
1. I tried (more or less) that patch, and it didn't help.
2. Separately, I tried setting sysctl net.inet6.icmp6.nd6_debug=1, and
I didn't see the "nd6_ns_input: ..." log message.
- I had ipv4 troubles with the same provider last year [1] which led to
a change in dhclient [2].
- Here's some info from one of my 7.0 vms:
h0 ~ $ tail -n 5 /var/log/messages
Dec 27 02:22:16 h0 /bsd: root on sd0a (62fb94c1e2005462.a) swap on sd0b dump on
sd0b
Dec 27 02:22:16 h0 /bsd: fd0 at fdc0 drive 1: density unknown
Dec 27 02:22:16 h0 slaacd[50539]: sendmsg: Can't assign requested address
Dec 27 02:22:16 h0 slaacd[50539]: sendmsg: Can't assign requested address
Dec 27 02:22:17 h0 savecore: no core dump
h0 ~ $ ifconfig vio0
vio0:
flags=a48843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6TEMP,AUTOCONF6,AUTOCONF4>
mtu 1500
lladdr fa:16:3e:88:70:93
index 1 priority 0 llprio 3
groups: egress
media: Ethernet autoselect
status: active
inet6 fe80::f816:3eff:fe88:7093%vio0 prefixlen 64 scopeid 0x1
inet 168.235.111.250 netmask 0xffffff00 broadcast 168.235.111.255
h0 ~ $ ifconfig vio1
vio1:
flags=a48843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6TEMP,AUTOCONF6,AUTOCONF4>
mtu 1500
lladdr fa:16:3e:fd:3c:a3
index 2 priority 0 llprio 3
media: Ethernet autoselect
status: active
inet6 fe80::f816:3eff:fefd:3ca3%vio1 prefixlen 64 scopeid 0x2
inet 10.168.0.1 netmask 0xffffff00 broadcast 10.168.0.255
h0 ~ $ cat /etc/hostname.vio0
autoconf
inet6 autoconf
h0 ~ $ cat /etc/hostname.vio1
autoconf
inet6 autoconf
- I put dmesg at the end of this email. I compiled the kernel myself
but it's with unmodified 7.0 release source. (I lost the original
kernel after trying out ramnode's patch.)
[0]
https://clientarea.ramnode.com/knowledgebase.php?action=displayarticle&id=120
[1] https://marc.info/?l=openbsd-misc&m=158860746708443&w=2
[2] https://marc.info/?l=openbsd-cvs&m=158999925831624&w=2
--
James
OpenBSD 7.0-stable (GENERIC.MP) #1: Mon Dec 27 02:20:30 UTC 2021
falsif...@h0.falsifian.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 1056817152 (1007MB)
avail mem = 1008812032 (962MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xf6860 (10 entries)
bios0: vendor SeaBIOS version "1.10.2-1ubuntu1" date 04/01/2014
bios0: OpenStack Foundation OpenStack Nova
acpi0 at bios0: ACPI 1.0
acpi0: sleep states S3 S4 S5
acpi0: tables DSDT FACP APIC
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS), 2600.46 MHz, 06-3a-09
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,SSE3,PCLMUL,VMX,SSSE3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,FSGSBASE,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,SSBD,ARAT,XSAVEOPT,MELTDOWN
cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line
16-way L2 cache
cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 1000MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS), 2600.02 MHz, 06-3a-09
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,SSE3,PCLMUL,VMX,SSSE3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,FSGSBASE,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,SSBD,ARAT,XSAVEOPT,MELTDOWN
cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line
16-way L2 cache
cpu1: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu1: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu1: smt 0, core 0, package 1
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins
acpiprt0 at acpi0: bus 0 (PCI0)
"ACPI0006" at acpi0 not configured
acpipci0 at acpi0 PCI0
acpicmos0 at acpi0
"PNP0A06" at acpi0 not configured
"PNP0A06" at acpi0 not configured
"PNP0A06" at acpi0 not configured
"QEMU0002" at acpi0 not configured
"ACPI0010" at acpi0 not configured
acpicpu0 at acpi0: C1(@1 halt!)
acpicpu1 at acpi0: C1(@1 halt!)
cpu0: using VERW MDS workaround
pvbus0 at mainbus0: KVM
pvclock0 at pvbus0
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
pciide0: channel 0 disabled (no drives)
pciide0: channel 1 disabled (no drives)
uhci0 at pci0 dev 1 function 2 "Intel 82371SB USB" rev 0x01: apic 0 int 11
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 0 int 9
iic0 at piixpm0
vga1 at pci0 dev 2 function 0 "Cirrus Logic CL-GD5446" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
virtio0 at pci0 dev 3 function 0 "Qumranet Virtio Network" rev 0x00
vio0 at virtio0: address fa:16:3e:88:70:93
virtio0: msix shared
virtio1 at pci0 dev 4 function 0 "Qumranet Virtio Network" rev 0x00
vio1 at virtio1: address fa:16:3e:fd:3c:a3
virtio1: msix shared
virtio2 at pci0 dev 5 function 0 "Qumranet Virtio Storage" rev 0x00
vioblk0 at virtio2
scsibus1 at vioblk0: 1 targets
sd0 at scsibus1 targ 0 lun 0: <VirtIO, Block Device, >
sd0: 332800MB, 512 bytes/sector, 681574400 sectors
virtio2: msix shared
virtio3 at pci0 dev 6 function 0 "Qumranet Virtio Memory Balloon" rev 0x00
viomb0 at virtio3
virtio3: apic 0 int 10
isa0 at pcib0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
usb0 at uhci0: USB revision 1.0
uhub0 at usb0 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00
addr 1
vmm0 at mainbus0: VMX/EPT (using slow L1TF mitigation)
dt: 445 probes
uhidev0 at uhub0 port 1 configuration 1 interface 0 "QEMU QEMU USB Tablet" rev
2.00/0.00 addr 2
uhidev0: iclass 3/0
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (62fb94c1e2005462.a) swap on sd0b dump on sd0b
fd0 at fdc0 drive 1: density unknown
