Description of problem: Some of my virtual machines eats more memory like defined in configuration. It is sometime more than 3-times like in definition. For example should use 2.5 GB RAM, but top shows: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2412 qemu 20 0 7563m 3.5g 1092 S 99.7 22.2 7926:00 qemu-kvm Version-Release number of selected component (if applicable): kernel-2.6.32.16-141.fc12.x86_64 qemu-kvm-0.12.3-2.fc12.x86_64 How reproducible: aprox. one week after guest reboot, guest memory usage is growing with constant usage. Steps to Reproduce: I am not sure, if it is reproducible on your machine, but I think this was already fixed upstream, so may be no need to reproduce. Additional info: qemu-0.12.4 has an fix for: Fix multiwrite memory leak in error case May be this patch helps: http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=7eb58a6c556c3880e6712cbf6d24d681261c5095 If there are no plans to release 0.12.4 for Fedora, is it possible to patch current stable qemu-kvm? I can recheck, if you push an updates-testing package.
Created attachment 434794 [details] Another patch May be we need to apply also this patch before.
Looks like this is fixed in qemu-0.12.5-1.fc13. Any chance to get this into F12 too? If not, I will update my host to F13. And I tested to compile this patch (+any other from upstream) and looks like it helped to leave memory usage at constant value (I think it's still high, but at least not increasing). My mail server should use 2.5 GB memory, but top says: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2768 qemu 20 0 5443m 3.8g 1116 S 3.8 24.0 12558:01 qemu-kvm 5 GB VIRT (>2*defined_memory) and 3.8 GB RES.
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