PCengines APU2C4, 12-STABLE: bootloader failure: Panic: free: guard2 fail @ 0x1000 + 2311663946 from
O. Hartmann
o.hartmann at walstatt.org
Wed Jul 24 10:20:52 UTC 2019
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Am Wed, 24 Jul 2019 12:09:16 +0300
Toomas Soome <tsoome at me.com> schrieb:
> > On 24 Jul 2019, at 11:11, O. Hartmann <ohartmann at walstatt.org> wrote:
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA256
> >
> > 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 <--
> > […]
>
>
> This is definitely something “funny”, we are apparently attempting to free pointer 0x1000
> which is definitely wrong because our heap should be just below 4GB line. Since we do get
> list of disks printed, also memory and version, it means we get error from interpretator -
> it is possible the stack did clash with bss and hence the corruption.
I realized that I have defined
WITH_KERNEL_RETPOLINE=YES
and since I use to build NanoBSD with -DNO_CLEAN, I'm just now compiling a clean NanoBSD with
RETPOLINE mitigations disabled so far - trying to check whether either of the ways to build
causes the issue.
>
> You can try to press space on first spinner and enter alternate loader on boot: prompt.
> (enter ?/boot on boot: prompt to see the file list).
I try a soon as the build process has finished and if the problem is then still present.
>
>
> >
> >
> >
> >
> > 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.
> >
>
> It certainly does look weird - sio_putc() is used in boot2 and it’s implementation is using
> same principe as comc_putchat() in comconsole.c (even if it is asm versus c code). Since the
> serial data is interpreted by terminal, it feels more about terminal emulator issue (line
> discipline, cabling, usb to serial dongle?)
We use here a null modem cabling with an integrated USB-to-UART/TTL converter, which is
attached to a FreeBSD CURRENT (most recent) box:
[...]
ugen2.3: <FTDI FT232R USB UART> at usbus2
uftdi0 on uhub4
uftdi0: <FT232R USB UART> on usbus2
[...]
it is a
StarTech.com 1 Port USB Nullmodem RS232 Adapter Kabel (USB 2.0 FTDI chipset).
Regards,
oh
>
> rgds,
> toomas
>
>
> >
> > 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).
> > -----BEGIN PGP SIGNATURE-----
> >
> > iHUEARYIAB0WIQSy8IBxAPDkqVBaTJ44N1ZZPba5RwUCXTgStAAKCRA4N1ZZPba5
> > R7YUAPsGg2mkFYPohDjTBoQEVPkJUsSIOM+s3oxsrYfQJ/RfYwD+LGp3jmC+PDML
> > mhCtddjT7graxjMKIknflAKYFs6LMwU=
> > =bU6X
> > -----END PGP SIGNATURE-----
> > _______________________________________________
> > freebsd-current at freebsd.org mailing list
> > https://lists.freebsd.org/mailman/listinfo/freebsd-current
> > To unsubscribe, send any mail to "freebsd-current-unsubscribe at freebsd.org"
>
> _______________________________________________
> freebsd-current at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe at freebsd.org"
- --
O. Hartmann
Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
-----BEGIN PGP SIGNATURE-----
iHUEARYIAB0WIQSy8IBxAPDkqVBaTJ44N1ZZPba5RwUCXTgt2AAKCRA4N1ZZPba5
RxZtAP93ACca3LqV+aHYpx+2yEZ3KNlTUhcWqKy8PuVl/tTVeAEA2Y/plzXzsp7l
S5NzgHVor4D7dmckArO0HJek0kaILw8=
=yMtE
-----END PGP SIGNATURE-----
More information about the freebsd-current
mailing list