x86: 0.736
device: 0.511
kernel: 0.506
architecture: 0.499
graphic: 0.445
semantic: 0.431
performance: 0.335
network: 0.306
virtual: 0.274
mistranslation: 0.256
user-level: 0.246
hypervisor: 0.225
permissions: 0.223
boot: 0.200
socket: 0.181
risc-v: 0.180
i386: 0.175
ppc: 0.171
peripherals: 0.167
KVM: 0.165
register: 0.154
debug: 0.150
vnc: 0.147
arm: 0.123
PID: 0.112
files: 0.091
assembly: 0.074
VMM: 0.053
TCG: 0.046

kvm does not support KVM_CAP_USER_MEMORY Please upgrade to at least kernel 2.6.29 or recent kvm-kmod (see http://sourceforge.net/projects/kvm)

We have a machine which is having QEMU+KVM on below configuration of linux
uname -a
Linux cairotrior 2.6.18-308.13.1.el5 #1 SMP Thu Jul 26 05:45:09 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux
cat /etc/issue
Red Hat Enterprise Linux Server release 5.8 (Tikanga)
Kernel \r on an \m


But in another setup, we are trying on a different machine having RHEL 5.9 having higher kernel version but it still gives below error
kvm does not support KVM_CAP_USER_MEMORY Please upgrade to at least kernel 2.6.29 or recent kvm-kmod (see http://sourceforge.net/projects/kvm).
failed to initialize KVM: Invalid argument No accelerator found!


I don’t know if the qemu version have compatibility issues with redhat 5.9 version –  need someone to check if the qemu can run on redhat 5.9 64 bit or not ?

Triaging old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays?

This error has never existed in QEMU, only in the old qemu-kvm fork which has been obsolete for about 5 years.  I'm closing this ticket.