device: 0.211
semantic: 0.155
PID: 0.104
graphic: 0.099
boot: 0.078
other: 0.071
vnc: 0.059
performance: 0.053
permissions: 0.039
files: 0.033
socket: 0.032
debug: 0.032
network: 0.023
KVM: 0.012
performance: 0.345
debug: 0.332
other: 0.059
PID: 0.049
files: 0.040
socket: 0.035
device: 0.035
network: 0.031
semantic: 0.025
boot: 0.012
permissions: 0.011
graphic: 0.010
vnc: 0.009
KVM: 0.005

can't assign enough RAM to the VM

QEMU version: 1.6.90.0 from 2013 11 16
Host OS: Windows XP SP3 x86
Host machine: 3.2 GHz AMD Athlon 64 dual core processor, 4 GB DDR II (3.2 seen by the OS) memory
Guest OS: Grub4Dos boot manager menu
Problem: you can't assign more than 880 MB memory to the VM, although with 0.15.1.0 version you can assign up to 1179 MB.

QEMU currently needs contiguous memory for the guest memory. Hosts running 32 bit Windows only provide about 2 GiB for programs. This 2 GiB is used for the executable, all loaded dlls and dynamic memory. Especially the dlls cause memory fragmentation, so newer versions of QEMU which need more dlls get less contiguous memory.

Running 32 bit QEMU on 64 bit Windows helps, and 64 bit QEMU also has no problem with allocating a large guest RAM.

Could we close this bug now - I think most people are using 64-bit host systems nowadays?

[Expired for QEMU because there has been no activity for 60 days.]