I downgrade qemu,fedora can start now.

But fedora can not connect to the internet in qemu,it is strange.The log file is attached.

My research is based on the network of l4linux running on real machine,I think if i have a try of your experiment about network performance of l4linux ,it would help me a lot.

My PC hardware:

motherboard:        Intel Q77

CPU:                     Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz

Ethernet:               intel 82579LM

RAM:                     4G

I burn the fedora.iso in a cd,try to run it on my PC,but the l4linux hangs,show these message:

[ 60.001054]INFO:rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t= 6002 jiffies)

[ 60.001657]INFO:Stall ended before state dump start

[ 236.893706]INFO:rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t= 24007 jiffies)

[ 236.894303]INFO:Stall ended before state dump start

[ 413.786348]INFO:rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t= 42012 jiffies)

[ 413.786943]INFO:Stall ended before state dump start

[ 590.678987]INFO:rcu_sched detected stalls on CPUs/tasks: { 1} (detected by 0, t= 60017 jiffies)

[ 590.679596]INFO:Stall ended before state dump start

I am not sure whether it's something wrong during my build process or my hardware don't fit the l4linux.

Could you make your fedora.iso file available on net ,so i can download and have a try .I think this would help me to find where is wrong.