Hi, I think I found a bug in OpenBSD 7.5 running on my Raspberry Pi 4.
The problem manifests itself by a constant blinking of the LINK/ACK LED
on a switch connected to the RPi, like there is communication all the time.
I think the problem appears when the interface goes up. The easiest way
to see this on a working system is to put “down” into /etc/hostname.bse0
and reboot; the LED will be lit all the time. But when I put “up” into
hostname.bse0 and run netstart bse0, the LED starts blinking constantly.
This can be also reproduced easily on the installation media. Everything
is fine until I confirm DHCP on bse0; the LED starts blinking constantly
after a few seconds. This happens no matter if a DHCP server is present
or not; the same effect occurs when connected to the switch with a
router or without any other machines.
dmesg:
OpenBSD 7.5 (GENERIC.MP) #138: Wed Mar 20 19:42:15 MDT 2024
[email protected]:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem = 8433524736 (8042MB)
avail mem = 8132136960 (7755MB)
random: good seed from bootblocks
mainbus0 at root: Raspberry Pi 4 Model B Rev 1.4
psci0 at mainbus0: PSCI 1.1, SMCCC 1.2
efi0 at mainbus0: UEFI 2.7
efi0:https://github.com/pftf/RPi4 rev 0x10000
smbios0 at efi0: SMBIOS 3.3.0
smbios0: vendorhttps://github.com/pftf/RPi4 version "UEFI Firmware v1.37" date
04/11/2024
smbios0: Raspberry Pi Foundation Raspberry Pi 4 Model B
cpu0 at mainbus0 mpidr 0: ARM Cortex-A72 r0p3
cpu0: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu0: 1024KB 64b/line 16-way L2 cache
cpu0: CRC32,ASID16
cpu1 at mainbus0 mpidr 1: ARM Cortex-A72 r0p3
cpu1: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu1: 1024KB 64b/line 16-way L2 cache
cpu2 at mainbus0 mpidr 2: ARM Cortex-A72 r0p3
cpu2: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu2: 1024KB 64b/line 16-way L2 cache
cpu3 at mainbus0 mpidr 3: ARM Cortex-A72 r0p3
cpu3: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu3: 1024KB 64b/line 16-way L2 cache
"atf" at mainbus0 not configured
"linux,cma" at mainbus0 not configured
"nvram" at mainbus0 not configured
"nvram" at mainbus0 not configured
apm0 at mainbus0
"system" at mainbus0 not configured
"axi" at mainbus0 not configured
simplebus0 at mainbus0: "soc"
bcmclock0 at simplebus0
bcmmbox0 at simplebus0
bcmgpio0 at simplebus0
bcmaux0 at simplebus0
ampintc0 at simplebus0 nirq 256, ncpu 4 ipi: 0, 1, 2: "interrupt-controller"
bcmtmon0 at simplebus0
bcmdmac0 at simplebus0: DMA0 DMA2 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9 DMA10
"txp" at simplebus0 not configured
pluart0 at simplebus0: rev 2, 16 byte fifo
pluart0: console
com0 at simplebus0: ns16550, no working fifo
"hvs" at simplebus0 not configured
dwctwo0 at simplebus0
"local_intc" at simplebus0 not configured
bcmdog0 at simplebus0
bcmirng0 at simplebus0
"pixelvalve" at simplebus0 not configured
"pixelvalve" at simplebus0 not configured
"pixelvalve" at simplebus0 not configured
"pixelvalve" at simplebus0 not configured
"pixelvalve" at simplebus0 not configured
"clock" at simplebus0 not configured
"interrupt-controller" at simplebus0 not configured
"hdmi" at simplebus0 not configured
"i2c" at simplebus0 not configured
"hdmi" at simplebus0 not configured
"i2c" at simplebus0 not configured
sdhc0 at simplebus0
sdhc0: SDHC 3.00, 250 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed
"firmware" at simplebus0 not configured
"power" at simplebus0 not configured
"mailbox" at simplebus0 not configured
"gpiomem" at simplebus0 not configured
"clocks" at mainbus0 not configured
"phy" at mainbus0 not configured
"gpu" at mainbus0 not configured
"clk-27M" at mainbus0 not configured
"clk-108M" at mainbus0 not configured
simplebus1 at mainbus0: "emmc2bus"
sdhc1 at simplebus1
sdhc1: SDHC 3.00, 100 MHz base clock
sdmmc1 at sdhc1: 8-bit, sd high-speed, mmc high-speed, ddr52, dma
"arm-pmu" at mainbus0 not configured
agtimer0 at mainbus0: 54000 kHz
simplebus2 at mainbus0: "scb"
bcmpcie0 at simplebus2
pci0 at bcmpcie0
ppb0 at pci0 dev 0 function 0 "Broadcom BCM2711" rev 0x10
pci1 at ppb0 bus 1
xhci0 at pci1 dev 0 function 0 "VIA VL805 xHCI" rev 0x01: intx, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "VIA xHCI root hub" rev 3.00/1.00
addr 1
bse0 at simplebus2: address e4:5f:01:04:c2:ae
brgphy0 at bse0 phy 1: BCM54210E 10/100/1000baseT PHY, rev. 2
"dma" at simplebus2 not configured
"codec" at simplebus2 not configured
"cam1_regulator" at mainbus0 not configured
"cam_dummy_reg" at mainbus0 not configured
gpioleds0 at mainbus0: "ACT", "PWR"
"sd_io_1v8_reg" at mainbus0 not configured
"sd_vcc_reg" at mainbus0 not configured
"fixedregulator_3v3" at mainbus0 not configured
"fixedregulator_5v0" at mainbus0 not configured
simplebus3 at mainbus0: "v3dbus"
"v3d" at simplebus3 not configured
usb1 at dwctwo0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Broadcom DWC2 root hub" rev
2.00/1.00 addr 1
scsibus0 at sdmmc1: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <SD/MMC, SD, 0002> removable
sd0: 30145MB, 512 bytes/sector, 61736960 sectors
uhub2 at uhub0 port 1 configuration 1 interface 0 "VIA Labs USB2.0 Hub" rev
2.10/4.21 addr 2
bwfm0 at sdmmc0 function 1
manufacturer 0x02d0, product 0xa9a6 at sdmmc0 function 2 not configured
manufacturer 0x02d0, product 0xa9a6 at sdmmc0 function 3 not configured
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (689f19160c8bad49.a) swap on sd0b dump on sd0b
WARNING: clock lost 94 days
WARNING: CHECK AND RESET THE DATE!
gpio0 at bcmgpio0: 58 pins
"bootloader" at mainbus0 not configured
bwfm0: address e4:5f:01:04:c2:b0
