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Old 9th September 2011
warudemaru warudemaru is offline
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Join Date: Dec 2010
Posts: 8
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Thanks for your interest. My details are as follow: I did a normal upgrade from 4.8 using sysmerge according to the upgrade guide. On 4.8 NFS was running without problems, just like on previous versions. PF is used on that machine, but I don't believe it's a problem as I access it over home LAN. No changes were made to the pf.conf. However there were some changes to the sysctl.conf. Previously I had the options
net.inet.tcp.recvspace=131072
net.inet.tcp.sendspace=131072
net.inet.udp.recvspace=131072
net.inet.udp.sendspace=131072

Without these the network was struggling, the transfer rates were very low on 4.8. Now after upgrade to 4.9 net.inet.tcp just disappeared,but i'm not facing any troubles with speed rate anymore. Maybe some other tuning regarding NFS is now needed too?
Today I made some additional tests and got the following results: mount and umount, as well as ls and even editing a file is possible as long as I don't try to copy or move files after which the client process hangs in nfsreq state and any further NFS operations are impossible, only reboot helps.
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