graphic: 0.916 device: 0.809 performance: 0.640 semantic: 0.635 debug: 0.613 mistranslation: 0.606 peripherals: 0.548 ppc: 0.517 user-level: 0.391 arm: 0.389 boot: 0.346 vnc: 0.284 PID: 0.283 architecture: 0.266 register: 0.251 network: 0.220 socket: 0.202 kernel: 0.194 risc-v: 0.172 permissions: 0.168 x86: 0.139 VMM: 0.130 virtual: 0.117 i386: 0.114 TCG: 0.099 files: 0.095 hypervisor: 0.045 assembly: 0.040 KVM: 0.020 Serial Named Pipe Unrecognized Windows 7 I created a named pipe serial hardware and supplied '/tmp/debug' which I created using mkfifo This is the snippet from ps -aux -chardev pipe,id=charserial0,path=/tmp/debug -device isa-serial,chardev=charserial0,id=serial0 failure@ubuntu1:~$ ls -al /tmp/debug* prwxrwxrwx 1 jgp jgp 0 2012-03-03 18:40 /tmp/debug prwxrwxrwx 1 jgp jgp 0 2012-03-03 18:40 /tmp/debug.in However inside the Windows 7 guest (even after a restart) nothing is recognized. Even after going through the add legacy hardware motions it's still not picked up. Which version of QEMU were you using? Can you still reproduce this issue with the latest version of QEMU? [Expired for QEMU because there has been no activity for 60 days.]