man nfs

Posted Mar 16, 2020 22:29 UTC (Mon) by nix (subscriber, #2304)
In reply to: man nfs by flussence
Parent article: Quote of the week

I've had hung mounts that I'm pretty certain were caused by jumbo ethernet frames too - any mtu above about 4000 seems flaky.

It must be more than that: I've never had hung mounts on the link to the NFS server here, which has an MTU of 6128 (because of limits on one of the network cards in question), not on NFSv3 nor NFSv4.0 nor NFSv4.1. And if I had hung mounts, I'd know it: my $HOME is on NFS...

man nfs

Posted Mar 19, 2020 8:33 UTC (Thu) by flussence (guest, #85566) [Link] (1 responses)

Personally, I'm inclined to blame these el cheapo onboard Realtek NICs I keep winding up with… if this was a kernelspace bug I'd hardly be the first to discover it.

man nfs

Posted Mar 19, 2020 22:09 UTC (Thu) by nix (subscriber, #2304) [Link]

It's not even all of those: the machine I'm typing this on has NFSv4 $HOME and a Realtek 8168 and has been more or less flawless. (Not that I'll be using that for much longer: I'm going 10GbE, with an X540-T1, instead. Yes, 10GbE to the desktop is now practical without needing to win the lottery first :) )