[Kernel-packages] [Bug 1047566] Re: Memory leaks when using NFS
Thanks Anders. The upgrade to 14.04 worked. I upgraded to 3.13.0-34-generic and SUnreclaim is no longer climbing. So, if anyone has a similar issue to me, the upgrade to the 14.04 kernel seems to work - or at least it did in my case. -- 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
[Kernel-packages] [Bug 1047566] Re: Memory leaks when using NFS
Has there been any progress on this bug? I'm seeing the same issue as the first poster, with a very similar setup (thousands of files with heavy reading - serving php files and static hml/images). The NFS server is running 12.04.4 LTS with kernel 3.2.0-67-virtual #101-Ubuntu SMP in EC2. The the SUnreclaim takes 7GB worth of memory in about 1 week. Slabtop reports increasing idr_layer_cache. -- 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
