Dmitry Nikiforov, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest server release of Ubuntu? ISO images are available from http://releases.ubuntu.com/raring/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.11-rc7 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Tags added: needs-kernel-logs needs-upstream-testing ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1047566 Title: Memory leaks when using NFS Status in “linux” package in Ubuntu: Incomplete Bug description: When using Ubuntu Server 12.04 with or without the latest updates (kernels 3.2.0-23 and 3.2.0-29, x86_64) as an NFS server with fairly heavy reading activity from clients (no writing), from a volume with a lot of small files, split into many subdirectories (with about 5-10 files or subdirectories per directory, in a tree-like structure not unlike that of Squid proxy), available memory is quickly exhausted, however no single process shows that much memory being used, nor does the "buffers" or "cached" in "free" command output. The server eventually runs out of memory and crashes. slabtop shows that majority of memory is being used by idr_layer_cache (3.6G on a sever with 4G of RAM shortly before the kernel started killing processes and eventually crashed). The filesystem being shared is ext4. Clients (also the same version of Ubuntu Server) mount the volume in read-only mode, with default options. P.S. Also tried i386 version, with the same result. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1047566/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp