** Description changed: Binary package hint: qemu-kvm Ubuntu release: 10.04 LTS Package version: 0.12.3+noroms-0ubuntu9 There seems to be a huge memory leak in qemu/kvm 0.12.3. After a while, a virtual machine is using much more memory on the host system, than actually is in use on the guest system. A guest system with only 512 MB assigned, can even use multiple GB's of memory. This bug is also discussed here: http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2989366&group_id=180599 Would it be possible to fix this bug in Ubuntu? It makes KVM a bit useless currently, because running 2 GB of VM's can even cost 16 GB of memory. + + ============ + Impact: A memory leak causes long-running (measured in only a few days) + kvm sessions to invoke the OOM killer. This makes many kvm or cloud + applications impossible. + + The issue is addressed with upstream patch with commit-id + 7eb58a6c556c3880e6712cbf6d24d681261c5095. A back-port of the + patch is attached, and can be seen in + https://code.edge.launchpad.net/~serge-hallyn/ubuntu/lucid/qemu-kvm/memleak-fix2/ + + To reproduce: simply start a kvm instance, ensure that aio is being + used, and let it run. + + Regression potential: the patch simply ensured that already-allocated + memory is freed in an error path which otherwise lets that memory leak. + ============
-- Memory leak https://bugs.launchpad.net/bugs/588293 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
