Hello,
Problem solved, there was bug in my gmac model, that cause writes
outside my gmac device state structure.
That leads to such (undefined) behaviour.
Regards,
Marcin
W dniu 10.10.2015 o 22:34,
mar.krzeminski pisze:
Hello,
I have my own virtual machine (already asked some questions about
that here).
I also have my own gmac model. I am building qemu (version
2.4.0.1) for 32 and 64 linux hosts.
The problem is with 64 bit binary. If I run as guest under qemu
linux, I could not even ping my machine.
In 32 bit version it works fine. And if I run in this 64 bit host
u-boot pingf from u-boot qorks fine.
From debugging it seems that under linux (32 bit arm) started on
64 linux host can_receive function from my model,
is called only once when virtual machine is booting, there is no
furthers call so that is why I can not ping.
I am running qemu in this way (based on yocto scripts):
qemu-system-arm -kernel zImage.bin -net nic,vlan=0 -net
tap,vlan=0,ifname=tap0,script=no,downscript=no -M macine-a9 -dtb
zImage.dtb -serial null -serial null -serial null -serial
mon:stdio -serial null -nographic -smp 2 -readconfig config -m
512 --append "ip=192.168.7.2::192.168.7.1:255.255.255.0 noinitrd
console=ttyS3,19200 earlyprintk debug=31"
As there is lack of documentation (or maybe there is but I haven't
got it ), my question is where should I start debugging what is
going wrong?
As for now it seems that my model does not receive ping and it is
not asked if can receive one. Situation is same when I ping from
quest the host's tap,
or from host guest machine.
Regards,
Marcin
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