PCengines APU2C4, 12-STABLE: bootloader failure: Panic: free: guard2 fail @ 0x1000 + 2311663946 from

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Hallo,

on APU2C4 from PCengines with latest firmware apu2_v4.9.0.7.rom, SeaBIOS
rel-1.12.1.3-0-g300e8b7, booting via legacy MBR FreeBSD 12-STABLE r350274 (the same with
r350115) fails to boot with an immediate loader error:

[...]
SeaBIOS (version rel-1.12.1.3-0-g300e8b7)

Press F10 key now for boot menu

Booting from Hard Disk...
/

 onsoles: internal video/keyboard   
 IOS drive C: is disk0 
 IOS drive D: is disk1 
 IOS 639kB/3404444kB available memory 
 
 reeBSD/x86 bootstrap loader, Revision 1.1  
 Mon Apr 15 21:28:11 CEST 2019 root_at_thor) 
 anic: free: guard2 fail @ 0x1000 + 2311663946 from Xçu0ç}4çl$♦├í@┤♠:2106163957 
 -> Press a key on the console to reboot <-- 
[...]




Booting 12.0-STABLE #78 r349288: Sat Jun 22 09:10:25 CEST 2019 amd64 works fine with nothing
changed except the OS version.


Booting 2.0-STABLE #78 r349288 works fine:

[...]
SeaBIOS (version rel-1.12.1.3-0-g300e8b7)

Press F10 key now for boot menu

Booting from Hard Disk...
|

 onsoles: internal video/keyboard   
 IOS drive C: is disk0 
 IOS drive D: is disk1 
 IOS 639kB/3404444kB available memory 
 
 reeBSD/x86 bootstrap loader, Revision 1.1 
 Mon Apr 15 21:28:11 CEST 2019 root_at_thor) 
 oading /boot/defaults/loader.conf 
 oading /boot/device.hints 
 oading /boot/loader.conf 
 oading /boot/loader.conf.local 
Loading kernel...
/boot/kernel/kernel text=0xb005e8 \
[...]

In the message taken from the serial console the first column of characters is lost due to an
error in the output which seems FreeBSD related.


The file /boot/loader.conf.local contains these lines in both, working and non-working,
scenario:

[...]
boot_serial="YES"
# serial speed in bits/s
comconsole_speed="115200"
console="comconsole"

autoboot_delay="0"

verbose_loading="YES"
loader_logo="orb"
beastie_disable="YES"

###  Microcode
#cpu_microcode_load="YES"                # Set this to YES to load and apply a
#cpu_microcode_name="/boot/firmware/intel-ucode.bin" # Set this to the microcode
#cpu_microcode_type="cpu_microcode"      # Required for the kernel to find
                                         # the microcode update file.


# disable Process Table Isolation
#vm.pmap.pti=0

kern.geom.label.gptid.enable=0

# Limit the phys. memory
#hw.physmem=1073741824  # 1 G
#hw.physmem=536870912   # 512 MB
#hw.physmem=268435456   # 256 MB

# Da mehr als 1 igb NIC an Bord! Siehe man igb(4)
kern.ipc.nmbclusters=757350
#kern.ipc.nmbjumbo9k=8192

# NIC
#hw.em.max_interrupt_rate=32000
hw.em.max_interrupt_rate=16000

#If non-zero, enable EXPERIMENTAL feature to improve concurrent Fortuna performance
kern.random.fortuna.concurrent_read="1"

# Forward Information Bases (FIBs)
net.fibs=10
net.add_addr_allfibs=0

[...]


Again, with the exact same setting 12-STABLE r349288 boots fine, rr350274 doesn't. 
FreeBSD 12-STABLE r

Can someone please help?

Thanks in advance, oh



- -- 
O. Hartmann

Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
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