Comment 56 for bug 561210

I tried adjusting vm.min_free_kbytes, and also those other settings suggested by Alex. They didn't seem to have any impact, still the test script hanged as earlier. I tried with 8080, 65536 and 80800, and also with the suggested TCP settings.

It seems that I can repro this case 100% with my wget test script. I have now run it total of 9 times, and at minimum it has taken 18 downloads in 77 seconds and at maximum 264 downloads in 1120 seconds before nfs gets stalled. I have attached the script in case that would help in trying to repro the problem (sorry for abusing ubuntu.com in testing :)). There shouldn't be anything special in my system setup, except that I run everything under kvm.