Memory leak with many NAT connections

[v2s3t4a]

In 3.1.4 not in 3.1.2 With many shortlived NAT connections "Mem Usage" rapidly goes to 500M (above what's allocated to VM), "VM Size" goes to 1G, saving and restoring state brings it to normal

[vasily Levchenko]

I've tried to reproduce the issue here (Win7 host) by downloading 1Gb file in the guest. But I haven't noticed any abnormal memory usage you'd described. Could you please clarify which application (working in the guest) could provoke the memory leak?

[Frank Mehnert]

To be more specific: Please provide step-by-step instructions to reproduce the problem. Note that Windows will fool the user, the displayed value usually contain the amount of currently used disk cache which is not a memory leak.

[v2s3t4a]

Same results in two p2p applications: Memory rapidly grows on the host for virtualbox process above what's allocated to vm. Just regular transfer would not do it.

[vasily Levchenko]

Replying to v2s3t4a:

Same results in two p2p applications: Memory rapidly grows on the host for virtualbox process above what's allocated to vm. Just regular transfer would not do it.

Could you please describe your steps and environment?

1. What application do you use.
2. Steps leading to heavy memory usage.

[Sander van Leeuwen]

How do you determine the memory leak? The memory for the VirtualBox.exe process grows or the total allocated memory in the Windows task manager increases?

[vasily Levchenko]

no response, closing.