Do you have some idea of when it started?

Do you have old boot messages (check /var/log/messages.*.gz) from eariler,
if so can you diff them and see if anything changed there?

Did anything change in the network (different switch, switch firmware,
or config)?


On 2020/05/14 10:43, Andreas Kusalananda Kähäri wrote:
> >Synopsis:    em0 does not get address from DHCP server in time
> >Category:    system amd64
> >Environment:
>       System      : OpenBSD 6.7
>       Details     : OpenBSD 6.7-current (GENERIC.MP) #186: Thu May 14 
> 00:13:53 MDT 2020
>                        
> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> 
>       Architecture: OpenBSD.amd64
>       Machine     : amd64
> >Description:
> 
> In recent snapshots, it seems that em0 sometimes does not get a link
> and/or IP address from the DHCP server quick enough and the interface
> is left without a proper IP address.  This has the knock-on effect that
> ntpd does not start properly, and, since it happened to the OpenBSD
> machine running my local unbound, my home network was left without being
> able to resolve local names, mount NFS shares, etc.
> 
> starting network
> em0: no link......
> em0: 192.168.1.60 lease accepted from 192.168.1.1 (74:83:c2:d6:b7:e8)
> reordering libraries: done.
> starting early daemons: syslogd pflogd unbound ntpd(failed).
> [...]
> 
> Even though a lease is accepted, the IP address is not always given
> to the actual em0 interface, and I have to log in as root on the
> physical machine and run "sh /etc/netstart" and start/restart the needed
> services.
> 
> This may or may not be related to
> https://marc.info/?l=openbsd-cvs&m=158927341308803&w=2
> 
> >How-To-Repeat:
> 
> Reboot, be unlucky.  Seems to happen more or less consistently after
> sysupgrade.
> 
> >Fix:
> 
> Reboot, be lucky.
> 
> dmesg:
> OpenBSD 6.7-current (GENERIC.MP) #186: Thu May 14 00:13:53 MDT 2020
>     [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 16377057280 (15618MB)
> avail mem = 15868096512 (15132MB)
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xaf054000 (65 entries)
> bios0: vendor LENOVO version "N1FET63W (1.37 )" date 05/24/2018
> bios0: LENOVO 20FB006AMS
> acpi0 at bios0: ACPI 5.0
> acpi0: sleep states S0 S3 S4 S5
> acpi0: tables DSDT FACP TCPA SSDT SSDT TPM2 UEFI SSDT SSDT ECDT HPET APIC 
> MCFG SSDT SSDT DBGP DBG2 BOOT BATB SLIC SSDT SSDT MSDM DMAR ASF! FPDT UEFI
> acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP9(S4) XHCI(S3)
> acpitimer0 at acpi0: 3579545 Hz, 24 bits
> acpiec0 at acpi0
> acpihpet0 at acpi0: 23999999 Hz
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz, 2494.80 MHz, 06-4e-03
> 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,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu0: 256KB 64b/line 8-way L2 cache
> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
> cpu0: apic clock running at 24MHz
> cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
> cpu1 at mainbus0: apid 2 (application processor)
> cpu1: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz, 2494.20 MHz, 06-4e-03
> 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,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu1: 256KB 64b/line 8-way L2 cache
> cpu1: smt 0, core 1, package 0
> cpu2 at mainbus0: apid 1 (application processor)
> cpu2: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz, 2494.20 MHz, 06-4e-03
> 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,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu2: 256KB 64b/line 8-way L2 cache
> cpu2: smt 1, core 0, package 0
> cpu3 at mainbus0: apid 3 (application processor)
> cpu3: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz, 2494.19 MHz, 06-4e-03
> 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,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu3: 256KB 64b/line 8-way L2 cache
> cpu3: smt 1, core 1, package 0
> ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins
> acpimcfg0 at acpi0
> acpimcfg0: addr 0xf8000000, bus 0-63
> acpiprt0 at acpi0: bus 0 (PCI0)
> acpiprt1 at acpi0: bus -1 (PEG0)
> acpiprt2 at acpi0: bus -1 (PEG1)
> acpiprt3 at acpi0: bus -1 (PEG2)
> acpiprt4 at acpi0: bus 2 (EXP1)
> acpiprt5 at acpi0: bus 4 (EXP3)
> acpiprt6 at acpi0: bus 5 (EXP5)
> acpiprt7 at acpi0: bus -1 (EXP9)
> acpicpu0 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), 
> C1(1000@1 mwait.1), PSS
> acpicpu1 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), 
> C1(1000@1 mwait.1), PSS
> acpicpu2 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), 
> C1(1000@1 mwait.1), PSS
> acpicpu3 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), 
> C1(1000@1 mwait.1), PSS
> acpipwrres0 at acpi0: PUBS, resource for XHCI
> acpipwrres1 at acpi0: PG00, resource for PEG0
> acpipwrres2 at acpi0: PG01, resource for PEG1
> acpipwrres3 at acpi0: PG02, resource for PEG2
> acpipwrres4 at acpi0: WRST
> acpipwrres5 at acpi0: WRST
> acpitz0 at acpi0: critical temperature is 128 degC
> acpibtn0 at acpi0: LID_
> acpibtn1 at acpi0: SLPB
> acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
> acpicmos0 at acpi0
> acpibat0 at acpi0: BAT0 model "00HW029" serial  1543 type LiP oem "SMP"
> acpiac0 at acpi0: AC unit online
> acpithinkpad0 at acpi0: version 1.0
> "PNP0C60" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> "INT0E0C" at acpi0 not configured
> "PNP0C14" at acpi0 not configured
> "MSFT0101" at acpi0 not configured
> acpivideo0 at acpi0: GFX0
> acpivout0 at acpivideo0: DD1F
> cpu0: using VERW MDS workaround (except on vmm entry)
> cpu0: Enhanced SpeedStep 2494 MHz: speeds: 2701, 2700, 2600, 2500, 2300, 
> 2100, 1900, 1800, 1600, 1400, 1300, 1100, 800, 700, 600, 400 MHz
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel Core 6G Host" rev 0x08
> inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 520" rev 0x07
> drm0 at inteldrm0
> inteldrm0: msi, SKYLAKE, gen 9
> "Intel Core GMM" rev 0x00 at pci0 dev 8 function 0 not configured
> "Intel 100 Series ISH" rev 0x21 at pci0 dev 19 function 0 not configured
> xhci0 at pci0 dev 20 function 0 "Intel 100 Series xHCI" rev 0x21: msi, xHCI 
> 1.0
> usb0 at xhci0: USB revision 3.0
> uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
> addr 1
> pchtemp0 at pci0 dev 20 function 2 "Intel 100 Series Thermal" rev 0x21
> "Intel 100 Series MEI" rev 0x21 at pci0 dev 22 function 0 not configured
> ppb0 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1: msi
> pci1 at ppb0 bus 2
> rtsx0 at pci1 dev 0 function 0 "Realtek RTS525A Card Reader" rev 0x01: msi
> sdmmc0 at rtsx0: 4-bit, dma
> ppb1 at pci0 dev 28 function 2 "Intel 100 Series PCIE" rev 0xf1: msi
> pci2 at ppb1 bus 4
> iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 8260" rev 0x3a, msi
> ppb2 at pci0 dev 28 function 4 "Intel 100 Series PCIE" rev 0xf1: msi
> pci3 at ppb2 bus 5
> nvme0 at pci3 dev 0 function 0 vendor "Toshiba", unknown product 0x010f rev 
> 0x01: msix, NVMe 1.1
> nvme0: THNSN5512GPU7 TOSHIBA, firmware 410557LA, serial 866S11MGTV8V
> scsibus1 at nvme0: 2 targets, initiator 0
> sd0 at scsibus1 targ 1 lun 0: <NVMe, THNSN5512GPU7 TO, 4105>
> sd0: 488386MB, 512 bytes/sector, 1000215216 sectors
> pcib0 at pci0 dev 31 function 0 "Intel 100 Series LPC" rev 0x21
> "Intel 100 Series PMC" rev 0x21 at pci0 dev 31 function 2 not configured
> azalia0 at pci0 dev 31 function 3 "Intel 100 Series HD Audio" rev 0x21: msi
> azalia0: codecs: Conexant/0x5111, Intel/0x2809, using Conexant/0x5111
> audio0 at azalia0
> ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x21: apic 2 
> int 16
> iic0 at ichiic0
> em0 at pci0 dev 31 function 6 "Intel I219-LM" rev 0x21: msi, address 
> 54:ee:75:ae:c8:9b
> isa0 at pcib0
> isadma0 at isa0
> pckbc0 at isa0 port 0x60/5 irq 1 irq 12
> pckbd0 at pckbc0 (kbd slot)
> wskbd0 at pckbd0: console keyboard
> pms0 at pckbc0 (aux slot)
> wsmouse0 at pms0 mux 0
> wsmouse1 at pms0 mux 0
> pms0: Synaptics clickpad, firmware 8.2, 0x1e2b1 0x940300 0x314840 0xf002a3 
> 0x12e800
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> vmm0 at mainbus0: VMX/EPT
> umb0 at uhub0 port 2 configuration 1 interface 12 "Sierra Wireless, 
> Incorporated Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A" rev 
> 2.10/0.06 addr 2
> uhidev0 at uhub0 port 3 configuration 1 interface 0 "Yubico YubiKey FIDO" rev 
> 2.00/5.12 addr 3
> uhidev0: iclass 3/0
> fido0 at uhidev0: input=64, output=64, feature=0
> ugen0 at uhub0 port 7 "Intel Bluetooth" rev 2.00/0.01 addr 4
> uvideo0 at uhub0 port 8 configuration 1 interface 0 "Azurewave Integrated 
> Camera" rev 2.00/0.20 addr 5
> video0 at uvideo0
> ugen1 at uhub0 port 9 "Validity Sensors product 0x0090" rev 2.00/1.64 addr 6
> vscsi0 at root
> scsibus2 at vscsi0: 256 targets
> softraid0 at root
> scsibus3 at softraid0: 256 targets
> root on sd0a (a09c7cd932f01b7d.a) swap on sd0b dump on sd0b
> inteldrm0: 2560x1440, 32bpp
> wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
> wsdisplay0: screen 1-5 added (std, vt100 emulation)
> iwm0: hw rev 0x200, fw ver 34.0.1, address e4:a7:a0:0a:f4:97
> 
> usbdevs:
> Controller /dev/usb0:
> addr 01: 8086:0000 Intel, xHCI root hub
>        super speed, self powered, config 1, rev 1.00
>        driver: uhub0
> addr 02: 1199:9079 Sierra Wireless, Incorporated, Sierra Wireless EM7455 
> Qualcomm Snapdragon X7 LTE-A
>        high speed, power 500 mA, config 1, rev 0.06, iSerial LF62957145031014
>        driver: umb0
> addr 03: 1050:0402 Yubico, YubiKey FIDO
>        full speed, power 30 mA, config 1, rev 5.12
>        driver: uhidev0
> addr 04: 8087:0a2b Intel, Bluetooth
>        full speed, self powered, config 1, rev 0.01
>        driver: ugen0
> addr 05: 13d3:5248 Azurewave, Integrated Camera
>        high speed, power 500 mA, config 1, rev 0.20, iSerial NULL
>        driver: uvideo0
> addr 06: 138a:0090 Validity Sensors, product 0x0090
>        full speed, power 100 mA, config 1, rev 1.64, iSerial 64ed88b91413
>        driver: ugen1
> 
> -- 
> Andreas (Kusalananda) Kähäri
> SciLifeLab, NBIS, ICM
> Uppsala University, Sweden
> 
> .
> 

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