@Andy Whitcroft Your sysctl setting on its own did not solve the problem for me. However while I was googling for vm.min_free_kbytes to check out what it actually does, I came across this site: http://russ.garrett.co.uk/2009/01/01/linux-kernel-tuning/
So I set these values on both, the server and the client: ## increase amount of kernel memory vm.min_free_kbytes = 65536 ## increase TCP max buffer size net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 ## increase TCP autotuning buffer limits net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 With these settings my problem is gone using the current lucid kernel 2.6.32-24.42. The system still gets a bit laggy on very high NFS network load but it does not stall anymore. -- Writing big files to NFS target causes system lock up https://bugs.launchpad.net/bugs/561210 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
