Avi Kivity wrote: > On 09/10/2012 01:44 PM, Liu, Jinsong wrote: >> Hi, >> >> I'm recently debugging a qemu-kvm issue. I add some print code like >> 'fprintf(stderr, ...)', however I fail to see any info at stdio. >> Anyone can tell me where is qemu-kvm logfile, or, what I need do to >> record my fprintf info? > > > If you're running via libvirt, the log is in /var/log/libvirt/qemu. > If you're running from the command line and printf()s should end on > your terminal.
Thanks! I run qemu-kvm from command line, but due to could not initialize SDL, I run qemu command via VNC, like 1). test kvm-unit-tests: qemu-system-x86_64 -device testdev,chardev=testlog -chardev file,id=testlog,path=apic.out -serial stdio -kernel ./x86/apic.flat -cpu host 2). test kvm guest: qemu-system-x86_64 -smp2 -m 512 -hda test.qcow.img -cpu host for case 1, there is some printf info of kvm-unit-tests on terminal but no qemu-kvm printf info; for case 2, no qemu-kvm printf info on terminal; Best Regards, Jinsong
