Hi: Under certain 100% reproducible circumstances, when I try to run qemu-kvm, it completely hangs without appearing to do anything I have tried this with qemu-kvm 0.12.4 and with the latest code from the git repository. Here are some more interesting details. The 64 bit host, kernel, and kvm kernel module are all vanilla CentOS 5.4. If I use the kmod- kvm-83-105.el5_4.9 version of the kernel module, it works fine. Yum update to anything past that and the hang occurs 100% of the time. Update all the way to the very latest CentOS 5.5 packages, and I still get the hang. Downgrade just the kvm kernel modules and it starts working again. I'm sure I could use the qemu-kvm that ships from CentOS with the corresponding kernel module, however that lacks certain essential features, including support for scsi disk drive emulation. After messing around with gdb and some printf statements, it looks to me like it just loops forever and ever in the "while (1)" loop on about line 1710 of qemu-kvm.c. Killing it and grabbing a backtrace shows that it is spending its time mostly sitting in the "select" system call on about line 1288 in vt.c. Maybe its normal to sit in that loop and poll for events, but something else should happen eventually. What is it waiting for? If I add the -no-kvm option to the command line, it works fine. Any ideas on how to further troubleshoot? thanks! -Zach My command line: /opt/qemu-git/bin/qemu-system-x86_64 -drive file=my.vmdk,if=scsi,cache=writeback -cdrom my.iso -boot d -nographic -m 1024 - no-kvm-irqchip -kernel my.vmlinuz -initrd my.initrd.img -append 'initrd=initrd.img root=/dev/ram0 console=tty0 console=ttyS0,19200 quiet action=install mode=silent ramdisk_size=147169 mkvm_cpu_lm mkvm_device=/dev/sda mkvm' -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
