Hi! On Tue, Oct 28, 2008 at 02:08:28AM +0000, Mikolaj Kucharski wrote: >Anyone is using qemu with kqemu? I have installed:
Not any more. I have experienced crashes of the host with kqemu (with the multiprocessor kernel), as well as strange behavior of the guest OS (for *some* guest OSes; Debian seems to run fine as guest, OpenBSD not [panic, init died, IIRC]). So I stopped using kqemu again (alas, because *as far as it worked*, it definitely got me a significant speed boost). >kqemu-1.3.0pre11p3 >qemu-0.9.1p4 >Loaded module on startup: ># modstat >Type Id Off Loadaddr Size Info Rev Module Name >DEV 0 29 dd047000 001b dd061360 2 kqemu ># ls -l /dev/kqemu >crw-rw---- 1 root _kqemu 29, 0 Oct 26 07:41 /dev/kqemu >When I start qemu I have following error message: >$ qemu ... >Could not open '/dev/kqemu' - QEMU acceleration layer not activated: Device >busy Strange. Worked for me (compiled the kqemu package myself on exactly the kernel/system I wanted to use, though, and added the appropriate lines to rc.securelevel and rebooted). >My user is member of _kqemu group. That should be fine then. >Running qemu as root user gives >the same error message and guest os (OpenBSD) is really slow no matter >which user executed qemu. Yes, of course qemu falls back to non-kqemu mode if it can't use the kqemu module. And *as far as it worked*, the acceleration was bigger when one uses -kernel-kqemu (KQEMU full virtualization instead of user mode only). Kind regards, Hannah.
