Re: NFS leading to D-state processes

2017-11-06 Thread Rupert Gallagher
:) > @protonmail.com> @protonmail.com>

Re: NFS leading to D-state processes

2017-11-06 Thread Rupert Gallagher
obsd's mount_nfs is a trap, because it executes a "hard" mount by default. This is not a wise default, if you consider the consequences of a hard nfs mount gone bad. A wiser default would be a soft interruptible mount. This reminds me of the "format" command in DOS 2.11: as people complained ha

Re: NFS leading to D-state processes

2017-11-05 Thread Rupert Gallagher
More info... obsd mounted the nfs folder on /mnt/nas, there is an unknown problem on the io with the nas, and "ls /mnt/nas" locks the console instead of terminating with information on the problem. Before mounting /mnt/nas, obsd had a hot-swap disk mounted on /mnt/backup, alive and well. After

NFS leading to D-state processes

2017-11-04 Thread Rupert Gallagher
NFS case study. - obsd server mounts LAN resource via NFS - the NFS server is a NAS running Alt-F firmware version 1.0 with working ssh but without sudo; - the NFS link does not respond - all obsd related processes hang into D state, including command like ls, df, and reboot. - kill -9 does not