Hello OpenBSD team,

Please find below a detailed report of a reproducible PCI enumeration
panic on my ROCKPro64 running OpenBSD.

Please let me know if you need additional information or diagnostic tests.
I would be happy to test patches and help investigate and resolve the
issue.

I have a reproducible early boot panic on a PINE64 ROCKPro64 v2.1
(RK3399, 4 GB) with a four-port Intel I350 installed. PCI ID is
8086:1521 rev 01; the present functions are 01:00.0 through 01:00.3.
The card is sold as a NICGIGA 4 Port 1G PCIe Ethernet Adapter with
an Intel I350 controller and four 1GbE RJ45 ports. This is the
supplied retail description; I have not recorded an exact part number.

The installed kernel is OpenBSD 7.9 GENERIC.MP #16, built
Mon Sep 28 02:46:43 MDT 2026. U-Boot is 2021.10, built
Apr 27 2026 20:47:53 -0600; BOOTAA64 is version 1.24.
syspatch -l lists 34 installed patches, 001_xserver through
034_wsdisplay; the complete list is included below. The power-supply
rating and slot/riser arrangement have not been confirmed.

Booting sd0a:/bsd without debugger changes repeatedly panics just
after pci1 attaches, before any Intel em interface attaches:

panic: uvm_fault failed: ffffff8000cebea8 esr 96000210
far ffffff805bd7b00c

The trace passes through generic_space_read_4, pci_probe_device,
pci_enumerate_bus, pciattach, ppbattach and rkpcie_attach.
I include the complete traceback and ps output below.

From the original saved exception frame, not the registers at the
panic's db_enter breakpoint:
  fault instruction: generic_space_read_4+0x18: ldr w0, [x2,x1]
  x1 = 0xffffff805bc77000
  x2 = 0x10400c
  x21 = 0x104000

The rkpcie tag encoding decodes this as bus 1, device 0, function 4,
register 0x0c. x1 + x2 equals FAR exactly. ESR has read direction
and synchronous external-abort fault status 0x10.

As a diagnostic, I booted sd0a:/bsd -d and changed two instructions
in RAM after verifying their disassembly:
  pci_enumerate_bus+0xf8:  mov w28,#8 -> mov w28,#4
    0x5280011c -> 0x5280009c
  pci_enumerate_bus+0x19c: mov w24,#8 -> mov w24,#4
    0x52800118 -> 0x52800098

After continue, em0 through em3 all attached with MSI and the system
reached multiuser login. Both sites were changed together, so I
have not established whether both changes are necessary. This cap
is global and temporary, not proposed as a general PCI fix.

Disabling rkpcie in UKC also permits boot, without the NIC.
A temporary max-link-speed=<1> FDT test still panics. Armbian/Linux
enumerates all four functions with igb, and each physical port
established 1000 Mb/s full-duplex link when tested individually.
After the RAM changes, OpenBSD em0 establishes 1000baseT full-duplex
link and exchanges packets with a Mac on the same switch. I assigned
169.254.251.73/16 to em0 and pinged the Mac at 169.254.251.72 with
that source address. The route selected em0; all 5 probes received
replies, with zero loss and average RTT 0.799 ms. This is a short
functional test, not a sustained-load test of all four ports.
pcidump reports 5.0 GT/s x2 in this OpenBSD boot, versus 2.5 GT/s x2
in the earlier Linux log. Negotiated speed in the failing FDT
speed-limit experiment was not captured.

A signed 8.0-current RAMDISK #114, built Sat Oct 10 04:49:07 MDT
2026, also panics after pci1 attaches, with ESR 0x96000210.
I tested it by booting a separate bsd.rd; I did not upgrade the
installed system. The precise function was decoded on 7.9 only.

There is a possibly related 2020 report, with a two-port I350:
https://www.mail-archive.com/[email protected]/msg15470.html

Could you advise which controller state or narrow diagnostic patch
would help determine why this absent-function config read aborts?
I can test a platform-specific change and provide serial captures.

=== Earlier unmodified 7.9 crash: complete traceback and ps ===
Addresses differ from the subsequently decoded crash. This is a
separate reproduction with the same kernel build.

ddb{0}> show panic
*cpu0: uvm_fault failed: ffffff800083994c esr 96000210 far ffffff805bd8000c
ddb{0}> trace
db_enter() at panic+0x138
panic() at kdata_abort+0x198
do_el0_sync() at handle_el1h_sync+0x68
handle_el1h_sync() at generic_space_read_4+0x14
--- trap ---
generic_space_read_4() at pci_probe_device+0x70
pci_probe_device() at pci_enumerate_bus+0x1e8
pci_enumerate_bus() at pciattach+0xf0
pciattach() at config_attach+0x214
config_attach() at ppbattach+0x67c
ppbattach() at config_attach+0x214
config_attach() at pci_probe_device+0x40c
pci_probe_device() at pci_enumerate_bus+0x1e8
pci_enumerate_bus() at config_attach+0x214
config_attach() at rkpcie_attach+0x740
rkpcie_attach() at config_attach+0x214
config_attach() at mainbus_attach_node+0x2b8
mainbus_attach_node() at mainbus_attach+0x334
mainbus_attach() at config_attach+0x214
config_attach() at cpu_configure+0x30
cpu_configure() at main+0x31c
main() at virtdone+0x70
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
*    0       0     -1      0  7     0x10200                swapper

=== Installed syspatch list, supplied 2026-10-11 ===
001_xserver
002_smtpd
003_vmd
004_elf
005_sysv
006_nfs
007_ipsec
008_npppd
009_iked
010_ifioctl
011_nipledge
012_kernproc
013_ttyioctl
014_expat
015_smtpd
016_nfs
017_wscons
018_shmat
019_expat
020_xserver
021_ldapd
022_nsd
023_unbound
024_libressl
025_procargs
026_sysvipc
027_iked
028_wgbind
029_sysvsem
030_uidrange
031_isakmpd
032_xserver
033_expat
034_wsdisplay

=== Latest unmodified 7.9 serial capture ===

U-Boot SPL 2021.10 (Apr 27 2026 - 20:47:53 -0600)
Trying to boot from SPI
Trying to boot from MMC2
Card did not respond to voltage select! : -110
spl: mmc init failed with error: -95
Trying to boot from MMC1
NOTICE:  BL31: v2.10.2(release):lts-2.10.2
NOTICE:  BL31: Built : 06:31:26, Apr 27 2026


U-Boot 2021.10 (Apr 27 2026 - 20:47:53 -0600)

SoC: Rockchip rk3399
Reset cause: RST
Model: Pine64 RockPro64 v2.1
DRAM:  3.9 GiB
PMIC:  RK808 
MMC:   mmc@fe310000: 3, mmc@fe320000: 1, mmc@fe330000: 0
Loading Environment from SPIFlash... SF: Detected gd25q128 with page size 256 
Bytes, erase size 4 KiB, total 16 MiB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Model: Pine64 RockPro64 v2.1
Net:   eth0: ethernet@fe300000
Hit any key to stop autoboot:  0 
Card did not respond to voltage select! : -110
switch to partitions #0, OK
mmc0(part 0) is current device
Scanning mmc 0:1...
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
Card did not respond to voltage select! : -110
Scanning disk [email protected] <mailto:[email protected]>...
Disk [email protected] <mailto:[email protected]> not ready
Card did not respond to voltage select! : -110
Scanning disk [email protected] <mailto:[email protected]>...
Disk [email protected] <mailto:[email protected]> not ready
Scanning disk [email protected] <mailto:[email protected]>...
Found 3 disks
No EFI system partition
BootOrder not defined
EFI boot manager: Cannot load any image
Found EFI removable media binary efi/boot/bootaa64.efi
230871 bytes read in 50 ms (4.4 MiB/s)
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
Booting /efi\boot\bootaa64.efi
disks: sd0*
>> OpenBSD/arm64 BOOTAA64 1.24
boot>  boot sd0a:/bsd
NOTE: random seed is being reused.
booting sd0a:/bsd: 12769116+3008920+325608+869184 
[1107568+91+1405512+903663]=0x1666130
[ using 3417608 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2026 OpenBSD. All rights reserved.  https://www.OpenBSD.org 
<https://www.openbsd.org/>

OpenBSD 7.9 (GENERIC.MP) #16: Mon Sep 28 02:46:43 MDT 2026
    [email protected] 
<mailto:[email protected]>:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem  = 4038762496 (3851MB)
avail mem = 3828412416 (3651MB)
random: good seed from bootblocks
mainbus0 at root: Pine64 RockPro64 v2.1
psci0 at mainbus0: PSCI 1.1, SMCCC 1.4, SYSTEM_SUSPEND
efi0 at mainbus0: UEFI 2.8
efi0: Das U-Boot rev 0x20211000
smbios0 at efi0: SMBIOS 3.0
smbios0: vendor U-Boot version "2021.10" date 10/01/2021
smbios0: Unknown Unknown Product
cpu0 at mainbus0 mpidr 0: ARM Cortex-A53 r0p4
cpu0: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu0: 512KB 64b/line 16-way L2 cache
cpu0: CRC32,SHA2,SHA1,AES+PMULL,ASID16
cpu1 at mainbus0 mpidr 1: ARM Cortex-A53 r0p4
cpu1: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu1: 512KB 64b/line 16-way L2 cache
cpu2 at mainbus0 mpidr 2: ARM Cortex-A53 r0p4
cpu2: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu2: 512KB 64b/line 16-way L2 cache
cpu3 at mainbus0 mpidr 3: ARM Cortex-A53 r0p4
cpu3: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu3: 512KB 64b/line 16-way L2 cache
cpu4 at mainbus0 mpidr 100: ARM Cortex-A72 r0p2
cpu4: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu4: 1024KB 64b/line 16-way L2 cache
cpu4: mismatched ID_AA64MMFR0_EL1
cpu4: CRC32,SHA2,SHA1,AES+PMULL,ASID16
cpu5 at mainbus0 mpidr 101: ARM Cortex-A72 r0p2
cpu5: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu5: 1024KB 64b/line 16-way L2 cache
apm0 at mainbus0
agintc0 at mainbus0 sec shift 3:3 nirq 288 nredist 6 ipi 0: 
"interrupt-controller"
agintcmsi0 at agintc0
syscon0 at mainbus0: "qos"
syscon1 at mainbus0: "qos"
syscon2 at mainbus0: "qos"
syscon3 at mainbus0: "qos"
syscon4 at mainbus0: "qos"
syscon5 at mainbus0: "qos"
syscon6 at mainbus0: "qos"
syscon7 at mainbus0: "qos"
syscon8 at mainbus0: "qos"
syscon9 at mainbus0: "qos"
syscon10 at mainbus0: "qos"
syscon11 at mainbus0: "qos"
syscon12 at mainbus0: "qos"
syscon13 at mainbus0: "qos"
syscon14 at mainbus0: "qos"
syscon15 at mainbus0: "qos"
syscon16 at mainbus0: "qos"
syscon17 at mainbus0: "qos"
syscon18 at mainbus0: "qos"
syscon19 at mainbus0: "qos"
syscon20 at mainbus0: "qos"
syscon21 at mainbus0: "qos"
syscon22 at mainbus0: "qos"
syscon23 at mainbus0: "qos"
syscon24 at mainbus0: "qos"
syscon25 at mainbus0: "power-management"
"power-controller" at syscon25 not configured
syscon26 at mainbus0: "syscon"
"io-domains" at syscon26 not configured
rkclock0 at mainbus0
rkclock1 at mainbus0
syscon27 at mainbus0: "syscon"
rkusbphy0 at syscon27: phy 0
rkusbphy1 at syscon27: phy 1
"io-domains" at syscon27 not configured
rkemmcphy0 at syscon27
"pcie-phy" at syscon27 not configured
rktcphy0 at mainbus0
rktcphy1 at mainbus0
rkpinctrl0 at mainbus0: "pinctrl"
rkgpio0 at rkpinctrl0
rkgpio1 at rkpinctrl0
rkgpio2 at rkpinctrl0
rkgpio3 at rkpinctrl0
rkgpio4 at rkpinctrl0
pwmreg0 at mainbus0
syscon28 at mainbus0: "syscon"
syscon29 at mainbus0: "syscon"
"fit-images" at mainbus0 not configured
rkdrm0 at mainbus0
drm0 at rkdrm0
"pmu_a53" at mainbus0 not configured
"pmu_a72" at mainbus0 not configured
agtimer0 at mainbus0: 24000 kHz
"xin24m" at mainbus0 not configured
rkpcie0 at mainbus0
pci0 at rkpcie0
ppb0 at pci0 dev 0 function 0 "Rockchip RK3399" rev 0x00: msi
pci1 at ppb0 bus 1
panic: uvm_fault failed: ffffff8000cebea8 esr 96000210 far ffffff805bd7b00c
Stopped at      db_enter+0x18:  brk     #0xf000
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*     0      0      0     0x10000      0x200    0K swapper
db_enter() at panic+0x138
panic() at kdata_abort+0x198
do_el0_sync() at handle_el1h_sync+0x68
handle_el1h_sync() at generic_space_read_4+0x14
--- trap ---
generic_space_read_4() at pci_probe_device+0x70
pci_probe_device() at pci_enumerate_bus+0x1e8
pci_enumerate_bus() at pciattach+0xf0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{0}> show panic
*cpu0: uvm_fault failed: ffffff8000cebea8 esr 96000210 far ffffff805bd7b00c
ddb{0}> show registers
x0                              0x4c    $d+0x39
x1                              0x14    $d+0x1
x2                              0x14    $d+0x1
x3                               0xd
x4                0xffffff800150ae60    initstack+0x51e0
x5                0xffffff800150b0d0    initstack+0x5450
x6                0xffffff800150b0c4    initstack+0x5444
x7                0xed534eb59ed9f7ce
x8                               0x1
x9                0x1f2e2442ea10dc6b
x10                              0x1
x11                             0xff    $d+0xec
x12                            0x300    $d+0x2ed
x13               0xffffff800150ae2f    initstack+0x51af
x14               0xffffff80010b97af    pppdumpb.digits
x15               0x974dc7cc6f0a49a8
x16               0xffffff8000bc035c    agintc_splx
x17                        0x80c4000    __ALIGN_SIZE+0x7ec4000
x18               0xffffff800150ae90    initstack+0x5210
x19               0xffffff80010d637c    $d+0x6
x20                              0x1
x21               0xffffff80014719b0    cpu_info_primary
x22               0xffffff800150cf80    proc0
x23                              0x1
x24               0xffffff8001512180    kernel_map_store
x25               0xffffff8001505c80    initstack
x26                              0x1
x27                           0xffff    $d+0xffec
x28                              0x8
x29               0xffffff800150ae90    initstack+0x5210
x30                                0
sp                0xffffff800150ae90    initstack+0x5210
spsr                      0x60000305
elr               0xffffff8000dec944    db_enter+0x18
lr                0xffffff800095a23c    panic+0x13c
db_enter+0x18:  brk     #0xf000
ddb{0}> pci_probe_device,0x20
No such command
ddb{0}> show registers
x0                              0x4c    $d+0x39
x1                              0x14    $d+0x1
x2                              0x14    $d+0x1
x3                               0xd
x4                0xffffff800150ae60    initstack+0x51e0
x5                0xffffff800150b0d0    initstack+0x5450
x6                0xffffff800150b0c4    initstack+0x5444
x7                0xed534eb59ed9f7ce
x8                               0x1
x9                0x1f2e2442ea10dc6b
x10                              0x1
x11                             0xff    $d+0xec
x12                            0x300    $d+0x2ed
x13               0xffffff800150ae2f    initstack+0x51af
x14               0xffffff80010b97af    pppdumpb.digits
x15               0x974dc7cc6f0a49a8
x16               0xffffff8000bc035c    agintc_splx
x17                        0x80c4000    __ALIGN_SIZE+0x7ec4000
x18               0xffffff800150ae90    initstack+0x5210
x19               0xffffff80010d637c    $d+0x6
x20                              0x1
x21               0xffffff80014719b0    cpu_info_primary
x22               0xffffff800150cf80    proc0
x23                              0x1
x24               0xffffff8001512180    kernel_map_store
x25               0xffffff8001505c80    initstack
x26                              0x1
x27                           0xffff    $d+0xffec
x28                              0x8
x29               0xffffff800150ae90    initstack+0x5210
x30                                0
sp                0xffffff800150ae90    initstack+0x5210
spsr                      0x60000305
elr               0xffffff8000dec944    db_enter+0x18
lr                0xffffff800095a23c    panic+0x13c
db_enter+0x18:  brk     #0xf000
ddb{0}> x/i pci_probe_device,0x20
pci_probe_device:       bti     c
pci_probe_device+0x4:   adrp    x15, ffffff80012dc000 <$d>
pci_probe_device+0x8:   ldr     x15, [x15,#560]
pci_probe_device+0xc:   eor     x15, x15, x30
pci_probe_device+0x10:  sub     sp, sp, #0x120
pci_probe_device+0x14:  stp     x29, x30, [sp,#176]
pci_probe_device+0x18:  str     x28, [sp,#192]
pci_probe_device+0x1c:  stp     x27, x26, [sp,#208]
pci_probe_device+0x20:  stp     x25, x24, [sp,#224]
pci_probe_device+0x24:  stp     x23, x22, [sp,#240]
pci_probe_device+0x28:  stp     x21, x20, [sp,#256]
pci_probe_device+0x2c:  stp     x19, x15, [sp,#272]
pci_probe_device+0x30:  add     x29, sp, #0xb0
pci_probe_device+0x34:  ldr     x20, [x0,#96]
pci_probe_device+0x38:  mov     x19, x0
pci_probe_device+0x3c:  mov     x22, x3
pci_probe_device+0x40:  mov     x23, x2
pci_probe_device+0x44:  add     x2, sp, #0x10
pci_probe_device+0x48:  add     x3, sp, #0xc
pci_probe_device+0x4c:  ldr     x8, [x20,#32]
pci_probe_device+0x50:  ldr     x0, [x20]
pci_probe_device+0x54:  add     x4, sp, #0x8
pci_probe_device+0x58:  mov     x21, x1
pci_probe_device+0x5c:  blr     x8
pci_probe_device+0x60:  ldr     x8, [x20,#48]
pci_probe_device+0x64:  ldr     x0, [x20]
pci_probe_device+0x68:  mov     x1, x21
pci_probe_device+0x6c:  mov     w2, #0xc
pci_probe_device+0x70:  blr     x8
pci_probe_device+0x74:  ubfx    w26, w0, #16, #7
pci_probe_device+0x78:  cmp     w26, #0x2
pci_probe_device+0x7c:  b.ls    ffffff8000cf04a4 <pci_probe_device+0x88>
ddb{0}> 
pci_probe_device+0x80:  mov     w25, wzr
ddb{0}> 
pci_probe_device+0x84:  b       ffffff8000cf04ec <pci_probe_device+0xd0>
ddb{0}> 
pci_probe_device+0x88:  ldr     x8, [x20,#48]
ddb{0}> 
pci_probe_device+0x8c:  ldr     x0, [x20]
ddb{0}> 
pci_probe_device+0x90:  mov     x1, x21
ddb{0}> 
pci_probe_device+0x94:  mov     w2, wzr
ddb{0}> 
pci_probe_device+0x98:  blr     x8
ddb{0}> 
pci_probe_device+0x9c:  ldr     x8, [x20]
ddb{0}> 
pci_probe_device+0xa0:  ldr     x9, [x20,#48]
ddb{0}> 
pci_probe_device+0xa4:  mov     w24, w0
ddb{0}> 
pci_probe_device+0xa8:  mov     x1, x21
ddb{0}> 
pci_probe_device+0xac:  mov     w2, #0x8
ddb{0}> 
pci_probe_device+0xb0:  mov     x0, x8
ddb{0}> x/i generic_space_read_4,0x10
generic_space_read_4:   bti     c
generic_space_read_4+0x4:       adrp    x15, ffffff80012d6000 <$d>
generic_space_read_4+0x8:       ldr     x15, [x15,#3536]
generic_space_read_4+0xc:       eor     x15, x15, x30
generic_space_read_4+0x10:      stp     x29, x30, [sp,#-16]!
generic_space_read_4+0x14:      mov     x29, sp
generic_space_read_4+0x18:      ldr     w0, [x2,x1]
generic_space_read_4+0x1c:      ldp     x29, x30, [sp],#16
generic_space_read_4+0x20:      adrp    x9, ffffff80012d6000 <$d>
generic_space_read_4+0x24:      eor     x15, x15, x30
generic_space_read_4+0x28:      ldr     x9, [x9,#3536]
generic_space_read_4+0x2c:      subs    x15, x15, x9
generic_space_read_4+0x30:      cbz     x15, ffffff8000cebec8 <generic_space_re
ad_4+0x38>
generic_space_read_4+0x34:      brk     #0x1
generic_space_read_4+0x38:      ret
generic_space_write_4:  bti     c
ddb{0}> 

=== Original saved exception-frame dump from the decoded crash ===
ddb{0}> x/qx (*(*(*$x29))),0x2
initstack+0x5430:           ffffff800150b140
initstack+0x5438:           ffffff8000cebea8
ddb{0}> x/qx (*(*(*$x29)))-0x110,0x22
initstack+0x5320:           ffffff800150b140
initstack+0x5328:           ffffff8000cf0490
initstack+0x5330:           ffffff8000cebea8
initstack+0x5338:                   600003c5
initstack+0x5340:           ffffff80014458a0
initstack+0x5348:           ffffff805bc77000
initstack+0x5350:                     10400c
initstack+0x5358:           ffffff800150b15c
initstack+0x5360:           ffffff800150b158
initstack+0x5368:           ffffff800150b0d0
initstack+0x5370:           ffffff800150b0c4
initstack+0x5378:           ed534eb59ed9f7ce
initstack+0x5380:           ffffff80014458a0
initstack+0x5388:           ffffff805bc77000
initstack+0x5390:                          c
initstack+0x5398:                         ff
initstack+0x53a0:                        3c0
initstack+0x53a8:           ffffff800150b1bf
initstack+0x53b0:                          0
initstack+0x53b8:           37396e1c364c10a9
initstack+0x53c0:           ffffff8000cebe90
initstack+0x53c8:                    80c4000
initstack+0x53d0:           ffffff800150b140
initstack+0x53d8:           ffffff800c304200
initstack+0x53e0:           ffffff800c2d5a78
initstack+0x53e8:                     104000
initstack+0x53f0:                          0
initstack+0x53f8:           ffffff8000ceed18
initstack+0x5400:                          8
initstack+0x5408:           ffffff800c2d5a78
initstack+0x5410:                          1
initstack+0x5418:                       ffff
initstack+0x5420:                          8
initstack+0x5428:           ffffff800150b140
ddb{0}>

=== Kernel messages from successful 7.9 boot with RAM scan cap ===
The running kernel had both scan-count instructions changed from
8 to 4 before continuing. All em interfaces attached in this boot.

Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2026 OpenBSD. All rights reserved.  https://www.OpenBSD.org 
<https://www.openbsd.org/>

OpenBSD 7.9 (GENERIC.MP) #16: Mon Sep 28 02:46:43 MDT 2026
    [email protected] 
<mailto:[email protected]>:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem  = 4038762496 (3851MB)
avail mem = 3828412416 (3651MB)
random: good seed from bootblocks
mainbus0 at root: Pine64 RockPro64 v2.1
psci0 at mainbus0: PSCI 1.1, SMCCC 1.4, SYSTEM_SUSPEND
efi0 at mainbus0: UEFI 2.8
efi0: Das U-Boot rev 0x20211000
smbios0 at efi0: SMBIOS 3.0
smbios0: vendor U-Boot version "2021.10" date 10/01/2021
smbios0: Unknown Unknown Product
cpu0 at mainbus0 mpidr 0: ARM Cortex-A53 r0p4
cpu0: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu0: 512KB 64b/line 16-way L2 cache
cpu0: CRC32,SHA2,SHA1,AES+PMULL,ASID16
cpu1 at mainbus0 mpidr 1: ARM Cortex-A53 r0p4
cpu1: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu1: 512KB 64b/line 16-way L2 cache
cpu2 at mainbus0 mpidr 2: ARM Cortex-A53 r0p4
cpu2: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu2: 512KB 64b/line 16-way L2 cache
cpu3 at mainbus0 mpidr 3: ARM Cortex-A53 r0p4
cpu3: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache
cpu3: 512KB 64b/line 16-way L2 cache
cpu4 at mainbus0 mpidr 100: ARM Cortex-A72 r0p2
cpu4: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu4: 1024KB 64b/line 16-way L2 cache
cpu4: mismatched ID_AA64MMFR0_EL1
cpu4: CRC32,SHA2,SHA1,AES+PMULL,ASID16
cpu5 at mainbus0 mpidr 101: ARM Cortex-A72 r0p2
cpu5: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu5: 1024KB 64b/line 16-way L2 cache
apm0 at mainbus0
agintc0 at mainbus0 sec shift 3:3 nirq 288 nredist 6 ipi 0: 
"interrupt-controller"
agintcmsi0 at agintc0
syscon0 at mainbus0: "qos"
syscon1 at mainbus0: "qos"
syscon2 at mainbus0: "qos"
syscon3 at mainbus0: "qos"
syscon4 at mainbus0: "qos"
syscon5 at mainbus0: "qos"
syscon6 at mainbus0: "qos"
syscon7 at mainbus0: "qos"
syscon8 at mainbus0: "qos"
syscon9 at mainbus0: "qos"
syscon10 at mainbus0: "qos"
syscon11 at mainbus0: "qos"
syscon12 at mainbus0: "qos"
syscon13 at mainbus0: "qos"
syscon14 at mainbus0: "qos"
syscon15 at mainbus0: "qos"
syscon16 at mainbus0: "qos"
syscon17 at mainbus0: "qos"
syscon18 at mainbus0: "qos"
syscon19 at mainbus0: "qos"
syscon20 at mainbus0: "qos"
syscon21 at mainbus0: "qos"
syscon22 at mainbus0: "qos"
syscon23 at mainbus0: "qos"
syscon24 at mainbus0: "qos"
syscon25 at mainbus0: "power-management"
"power-controller" at syscon25 not configured
syscon26 at mainbus0: "syscon"
"io-domains" at syscon26 not configured
rkclock0 at mainbus0
rkclock1 at mainbus0
syscon27 at mainbus0: "syscon"
rkusbphy0 at syscon27: phy 0
rkusbphy1 at syscon27: phy 1
"io-domains" at syscon27 not configured
rkemmcphy0 at syscon27
"pcie-phy" at syscon27 not configured
rktcphy0 at mainbus0
rktcphy1 at mainbus0
rkpinctrl0 at mainbus0: "pinctrl"
rkgpio0 at rkpinctrl0
rkgpio1 at rkpinctrl0
rkgpio2 at rkpinctrl0
rkgpio3 at rkpinctrl0
rkgpio4 at rkpinctrl0
pwmreg0 at mainbus0
syscon28 at mainbus0: "syscon"
syscon29 at mainbus0: "syscon"
"fit-images" at mainbus0 not configured
rkdrm0 at mainbus0
drm0 at rkdrm0
"pmu_a53" at mainbus0 not configured
"pmu_a72" at mainbus0 not configured
agtimer0 at mainbus0: 24000 kHz
"xin24m" at mainbus0 not configured
rkpcie0 at mainbus0
pci0 at rkpcie0
ppb0 at pci0 dev 0 function 0 "Rockchip RK3399" rev 0x00: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel I350" rev 0x01: msi, address 
1a:4b:24:c8:27:ba
em1 at pci1 dev 0 function 1 "Intel I350" rev 0x01: msi, address 
1a:4b:24:c8:27:bb
em2 at pci1 dev 0 function 2 "Intel I350" rev 0x01: msi, address 
1a:4b:24:c8:27:bc
em3 at pci1 dev 0 function 3 "Intel I350" rev 0x01: msi, address 
1a:4b:24:c8:27:bd
dwge0 at mainbus0: rev 0x35, address 86:aa:ec:d3:66:98
rgephy0 at dwge0 phy 0: RTL8169S/8110S/8211, rev. 6
dwmmc0 at mainbus0: 50 MHz base clock
sdmmc0 at dwmmc0: 4-bit, sd high-speed, dma
dwmmc1 at mainbus0rkclock_set_frequency(rkclock1, 461, 200000000)
: 50 MHz base clock
sdmmc1 at dwmmc1: 4-bit, sd high-speed, dma
sdhc0 at mainbus0
sdhc0: SDHC 3.00, 200 MHz base clock
sdmmc2 at sdhc0: 8-bit, sd high-speed, mmc high-speed, dma
ehci0 at mainbus0
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Generic EHCI root hub" rev 2.00/1.00 
addr 1
ohci0 at mainbus0: version 1.0
ehci1 at mainbus0
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Generic EHCI root hub" rev 2.00/1.00 
addr 1
ohci1 at mainbus0: version 1.0
rkdwusb0 at mainbus0: "usb"
xhci0 at rkdwusb0, xHCI 1.10
usb2 at xhci0: USB revision 3.0
uhub2 at usb2 configuration 1 interface 0 "Generic xHCI root hub" rev 3.00/1.00 
addr 1
rkdwusb1 at mainbus0: "usb"
xhci1 at rkdwusb1, xHCI 1.10
usb3 at xhci1: USB revision 3.0
uhub3 at usb3 configuration 1 interface 0 "Generic xHCI root hub" rev 3.00/1.00 
addr 1
"saradc" at mainbus0 not configured
rkiic0 at mainbus0
iic0 at rkiic0
escodec0 at iic0 addr 0x11
rkiic1 at mainbus0
iic1 at rkiic1
com0 at mainbus0: dw16550, 64 byte fifo
com1 at mainbus0: dw16550, 64 byte fifo
com1: console
rkspi0 at mainbus0
rktemp0 at mainbus0
rkiic2 at mainbus0
iic2 at rkiic2
rkpmic0 at iic2 addr 0x1b: RK808
fanpwr0 at iic2 addr 0x40: SYR827, 0.82 VDC
fanpwr1 at iic2 addr 0x41: SYR828, 1.00 VDC
rkiic3 at mainbus0
iic3 at rkiic3
fusbtc0 at iic3 addr 0x22
rkpwm0 at mainbus0
rkpwm1 at mainbus0
rkpwm2 at mainbus0
"video-codec" at mainbus0 not configured
"iommu" at mainbus0 not configured
"video-codec" at mainbus0 not configured
"iommu" at mainbus0 not configured
"rga" at mainbus0 not configured
"efuse" at mainbus0 not configured
"dma-controller" at mainbus0 not configured
"dma-controller" at mainbus0 not configured
"watchdog" at mainbus0 not configured
"rktimer" at mainbus0 not configured
rkiis0 at mainbus0
rkiis1 at mainbus0
rkiis2 at mainbus0
rkvop0 at mainbus0: RK3399 VOPL
"iommu" at mainbus0 not configured
rkvop1 at mainbus0: RK3399 VOPB
"iommu" at mainbus0 not configured
"iommu" at mainbus0 not configured
"iommu" at mainbus0 not configured
simpleaudio0 at mainbus0
rkdwhdmi0 at mainbus0: HDMI TX
rkdwhdmi0: version 2.11a, phytype 0xf3
"gpu" at mainbus0 not configured
"opp-table0" at mainbus0 not configured
"opp-table1" at mainbus0 not configured
"opp-table2" at mainbus0 not configured
"external-gmac-clock" at mainbus0 not configured
gpiokeys0 at mainbus0: "GPIO Key Power"
"ir-receiver" at mainbus0 not configured
gpioleds0 at mainbus0: "work", "diy"
pwmfan0 at mainbus0
"sdio-pwrseq" at mainbus0 not configured
graphaudio0 at mainbus0
graphaudio1 at mainbus0
"spdif-dit" at mainbus0 not configured
"vcc12v-dcin" at mainbus0 not configured
"vcc1v8-s3" at mainbus0 not configured
"vcc3v0-sd" at mainbus0 not configured
"vcc3v3-pcie-regulator" at mainbus0 not configured
"vcc3v3-sys" at mainbus0 not configured
"vcc5v0-host-regulator" at mainbus0 not configured
"vcc5v0-typec-regulator" at mainbus0 not configured
"vcc5v0-sys" at mainbus0 not configured
"vcc5v0-usb" at mainbus0 not configured
"binman" at mainbus0 not configured
"dfi" at mainbus0 not configured
rkrng0 at mainbus0: ver 1
"dmc" at mainbus0 not configured
"config" at mainbus0 not configured
usb4 at ohci0: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "Generic OHCI root hub" rev 1.00/1.00 
addr 1
usb5 at ohci1: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "Generic OHCI root hub" rev 1.00/1.00 
addr 1
audio0 at graphaudio0
bwfm0 at sdmmc0 function 1
manufacturer 0x02d0, product 0xa9bf at sdmmc0 function 2 not configured
manufacturer 0x02d0, product 0xa9bf at sdmmc0 function 3 not configured
scsibus0 at sdmmc2: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <Sandisk, DA4064, 0000> removable
sd0: 59640MB, 512 bytes/sector, 122142720 sectors
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (0938ef8fe849c2b0.a) swap on sd0b dump on sd0b
rkvop0: using CRTC 0 for RK3399 VOPL
rkvop1: using CRTC 1 for RK3399 VOPB
drm:pid0:drm_fb_helper_find_format *WARNING* [drm] format 0x34325258 not 
supported
drm:pid0:drm_fb_helper_find_format *WARNING* [drm] format 0x34325258 not 
supported
drm:pid0:__drm_fb_helper_find_sizes *WARNING* [drm] No compatible format found
rkdrm0: 1024x768, 32bpp
wsdisplay0 at rkdrm0 mux 1
wsdisplay0: screen 0-5 added (std, vt100 emulation)
bwfm0: address d4:12:43:26:a5:1e

=== PCI configuration from the successful RAM-modified boot ===
Domain /dev/pci0:
 0:0:0: Rockchip RK3399
        0x0000: Vendor ID: 1d87, Product ID: 0100
        0x0004: Command: 0007, Status: 0010
        0x0008: Class: 06 Bridge, Subclass: 04 PCI,
                Interface: 00, Revision: 00
        0x000c: BIST: 00, Header Type: 01, Latency Timer: 00,
                Cache Line Size: 00
        0x0010: BAR empty (00000000)
        0x0014: BAR empty (00000000)
        0x0018: Primary Bus: 0, Secondary Bus: 1, Subordinate Bus: 16,
                Secondary Latency Timer: 00
        0x001c: I/O Base: 01, I/O Limit: f1, Secondary Status: 0000
                I/O Window: 0xfbe00000-0xfbe0ffff
        0x0020: Memory Base: fa00, Memory Limit: faf0
                Memory Window: 0xfa000000-0xfaffffff
        0x0024: Prefetch Memory Base: 0000, Prefetch Memory Limit: 0000
                Prefetch Memory Window: 0x0000000000000000-0x00000000000fffff
        0x0028: Prefetch Memory Base Upper 32 Bits: 00000000
        0x002c: Prefetch Memory Limit Upper 32 Bits: 00000000
        0x0030: I/O Base Upper 16 Bits: fbe0, I/O Limit Upper 16 Bits: fbe0
        0x0038: Expansion ROM Base Address: 00000000
        0x003c: Interrupt Pin: 01, Line: ff, Bridge Control: 0000
        0x0080: Capability 0x01: Power Management
                State: D0
        0x0090: Capability 0x05: Message Signalled Interrupts (MSI)
                Enabled: yes; 1 vectors (1 enabled)
        0x00b0: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
                Enabled: no; table size 1 (BAR 0:0)
        0x00c0: Capability 0x10: PCI Express
                Max Payload Size: 128 / 256 bytes
                Max Read Request Size: 512 bytes
                Link Speed: 5.0 / 5.0 GT/s
                Link Width: x2 / x4
                ASPM: L1 (disabled)
        0x0100: Enhanced Capability 0x01: Advanced Error Reporting
        0x0274: Enhanced Capability 0x17: TPH Requester
        0x0900: Enhanced Capability 0x1e: L1 PM
        0x0000: 01001d87 00100007 06040000 00010000
        0x0010: 00000000 00000000 00100100 0000f101
        0x0020: faf0fa00 00000000 00000000 00000000
        0x0030: fbe0fbe0 00000080 00000000 000001ff
 1:0:0: Intel I350
        0x0000: Vendor ID: 8086, Product ID: 1521
        0x0004: Command: 0006, Status: 0010
        0x0008: Class: 02 Network, Subclass: 00 Ethernet,
                Interface: 00, Revision: 01
        0x000c: BIST: 00, Header Type: 80, Latency Timer: 00,
                Cache Line Size: 20
        0x0010: BAR mem 32bit addr: 0xfa000000/0x00020000
        0x0014: BAR empty (00000000)
        0x0018: BAR io addr: 0x00000000/0x0020
        0x001c: BAR mem 32bit addr: 0x00000000/0x00004000
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: ffff Product ID: 0000
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 01 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0040: Capability 0x01: Power Management
                State: D0
        0x0050: Capability 0x05: Message Signalled Interrupts (MSI)
                Enabled: yes; 1 vectors (1 enabled)
        0x0070: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
                Enabled: no; table size 10 (BAR 3:0)
        0x00a0: Capability 0x10: PCI Express
                Max Payload Size: 128 / 512 bytes
                Max Read Request Size: 512 bytes
                Link Speed: 5.0 / 5.0 GT/s
                Link Width: x2 / x4
                ASPM: L0s, L1 (disabled)
        0x0100: Enhanced Capability 0x01: Advanced Error Reporting
        0x0140: Enhanced Capability 0x03: Device Serial Number
                Serial Number: 1a4b24ffffc827ba
        0x0150: Enhanced Capability 0x0e: Alternate Routing ID
        0x0160: Enhanced Capability 0x10: Single Root I/O Virtualization
        0x01a0: Enhanced Capability 0x17: TPH Requester
        0x01c0: Enhanced Capability 0x18: Latency Tolerance Reporting
        0x01d0: Enhanced Capability 0x0d: Access Control Services
        0x0000: 15218086 00100006 02000001 00800020
        0x0010: fa000000 00000000 00000001 00000000
        0x0020: 00000000 00000000 00000000 0000ffff
        0x0030: 00000000 00000040 00000000 00000100
 1:0:1: Intel I350
        0x0000: Vendor ID: 8086, Product ID: 1521
        0x0004: Command: 0006, Status: 0010
        0x0008: Class: 02 Network, Subclass: 00 Ethernet,
                Interface: 00, Revision: 01
        0x000c: BIST: 00, Header Type: 80, Latency Timer: 00,
                Cache Line Size: 20
        0x0010: BAR mem 32bit addr: 0xfa020000/0x00020000
        0x0014: BAR empty (00000000)
        0x0018: BAR io addr: 0x00000000/0x0020
        0x001c: BAR mem 32bit addr: 0x00000000/0x00004000
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: ffff Product ID: 0000
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 02 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0040: Capability 0x01: Power Management
                State: D0
        0x0050: Capability 0x05: Message Signalled Interrupts (MSI)
                Enabled: yes; 1 vectors (1 enabled)
        0x0070: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
                Enabled: no; table size 10 (BAR 3:0)
        0x00a0: Capability 0x10: PCI Express
                Max Payload Size: 128 / 512 bytes
                Max Read Request Size: 512 bytes
                Link Speed: 5.0 / 5.0 GT/s
                Link Width: x2 / x4
                ASPM: L0s, L1 (disabled)
        0x0100: Enhanced Capability 0x01: Advanced Error Reporting
        0x0140: Enhanced Capability 0x03: Device Serial Number
                Serial Number: 1a4b24ffffc827ba
        0x0150: Enhanced Capability 0x0e: Alternate Routing ID
        0x0160: Enhanced Capability 0x10: Single Root I/O Virtualization
        0x01a0: Enhanced Capability 0x17: TPH Requester
        0x01d0: Enhanced Capability 0x0d: Access Control Services
        0x0000: 15218086 00100006 02000001 00800020
        0x0010: fa020000 00000000 00000001 00000000
        0x0020: 00000000 00000000 00000000 0000ffff
        0x0030: 00000000 00000040 00000000 00000200
 1:0:2: Intel I350
        0x0000: Vendor ID: 8086, Product ID: 1521
        0x0004: Command: 0006, Status: 0010
        0x0008: Class: 02 Network, Subclass: 00 Ethernet,
                Interface: 00, Revision: 01
        0x000c: BIST: 00, Header Type: 80, Latency Timer: 00,
                Cache Line Size: 20
        0x0010: BAR mem 32bit addr: 0xfa040000/0x00020000
        0x0014: BAR empty (00000000)
        0x0018: BAR io addr: 0x00000000/0x0020
        0x001c: BAR mem 32bit addr: 0x00000000/0x00004000
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: ffff Product ID: 0000
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 03 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0040: Capability 0x01: Power Management
                State: D0
        0x0050: Capability 0x05: Message Signalled Interrupts (MSI)
                Enabled: yes; 1 vectors (1 enabled)
        0x0070: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
                Enabled: no; table size 10 (BAR 3:0)
        0x00a0: Capability 0x10: PCI Express
                Max Payload Size: 128 / 512 bytes
                Max Read Request Size: 512 bytes
                Link Speed: 5.0 / 5.0 GT/s
                Link Width: x2 / x4
                ASPM: L0s, L1 (disabled)
        0x0100: Enhanced Capability 0x01: Advanced Error Reporting
        0x0140: Enhanced Capability 0x03: Device Serial Number
                Serial Number: 1a4b24ffffc827ba
        0x0150: Enhanced Capability 0x0e: Alternate Routing ID
        0x0160: Enhanced Capability 0x10: Single Root I/O Virtualization
        0x01a0: Enhanced Capability 0x17: TPH Requester
        0x01d0: Enhanced Capability 0x0d: Access Control Services
        0x0000: 15218086 00100006 02000001 00800020
        0x0010: fa040000 00000000 00000001 00000000
        0x0020: 00000000 00000000 00000000 0000ffff
        0x0030: 00000000 00000040 00000000 00000300
 1:0:3: Intel I350
        0x0000: Vendor ID: 8086, Product ID: 1521
        0x0004: Command: 0006, Status: 0010
        0x0008: Class: 02 Network, Subclass: 00 Ethernet,
                Interface: 00, Revision: 01
        0x000c: BIST: 00, Header Type: 80, Latency Timer: 00,
                Cache Line Size: 20
        0x0010: BAR mem 32bit addr: 0xfa060000/0x00020000
        0x0014: BAR empty (00000000)
        0x0018: BAR io addr: 0x00000000/0x0020
        0x001c: BAR mem 32bit addr: 0x00000000/0x00004000
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: ffff Product ID: 0000
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 04 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0040: Capability 0x01: Power Management
                State: D0
        0x0050: Capability 0x05: Message Signalled Interrupts (MSI)
                Enabled: yes; 1 vectors (1 enabled)
        0x0070: Capability 0x11: Extended Message Signalled Interrupts (MSI-X)
                Enabled: no; table size 10 (BAR 3:0)
        0x00a0: Capability 0x10: PCI Express
                Max Payload Size: 128 / 512 bytes
                Max Read Request Size: 512 bytes
                Link Speed: 5.0 / 5.0 GT/s
                Link Width: x2 / x4
                ASPM: L0s, L1 (disabled)
        0x0100: Enhanced Capability 0x01: Advanced Error Reporting
        0x0140: Enhanced Capability 0x03: Device Serial Number
                Serial Number: 1a4b24ffffc827ba
        0x0150: Enhanced Capability 0x0e: Alternate Routing ID
        0x0160: Enhanced Capability 0x10: Single Root I/O Virtualization
        0x01a0: Enhanced Capability 0x17: TPH Requester
        0x01d0: Enhanced Capability 0x0d: Access Control Services
        0x0000: 15218086 00100006 02000001 00800020
        0x0010: fa060000 00000000 00000001 00000000
        0x0020: 00000000 00000000 00000000 0000ffff
        0x0030: 00000000 00000040 00000000 00000400

=== em0 packet test from the successful RAM-modified boot ===
free# ifconfig em0 inet -autoconf
free# ifconfig em0 inet 169.254.251.73/16 up
free# route -n get 169.254.251.72
   route to: 169.254.251.72
destination: 169.254.0.0
       mask: 255.255.0.0
  interface: em0
 if address: 169.254.251.73
   priority: 4 (connected)
      flags: <UP,DONE,CLONING,CONNECTED>
     use       mtu    expire
       0         0         0
free# ping -n -I 169.254.251.73 -c 5 169.254.251.72
PING 169.254.251.72 (169.254.251.72): 56 data bytes
64 bytes from 169.254.251.72: icmp_seq=0 ttl=255 time=1.447 ms
64 bytes from 169.254.251.72: icmp_seq=1 ttl=255 time=0.643 ms
64 bytes from 169.254.251.72: icmp_seq=2 ttl=255 time=0.534 ms
64 bytes from 169.254.251.72: icmp_seq=3 ttl=255 time=0.643 ms
64 bytes from 169.254.251.72: icmp_seq=4 ttl=255 time=0.729 ms

--- 169.254.251.72 ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.534/0.799/1.447/0.330 ms
free#

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