On Mon, Aug 09, 2021 at 02:38:33PM -0400, hedrick@xxxxxxxxxxx wrote: > Does setting /proc/sys/fs/leases-enable to 0 work while the system is > up? I was expecting to see lslocks | grep DELE | wc go down. It’s not. > It’s staying around 1850. All it should do is prevent giving out *new* delegations. Best is to set that sysctl on system startup before nfsd starts. > > On Aug 9, 2021, at 2:30 PM, Timothy Pearson > > <tpearson@xxxxxxxxxxxxxxxxxxxxx> wrote: > > > > FWIW that's *exactly* what we see. Eventually, if the server is > > left alone for enough time, even the login system stops responding > > -- it's as if the I/O subsystem degrades and eventually blocks > > entirely. That's pretty common behavior across a variety of kernel bugs. So on its own it doesn't mean the root cause is the same. --b.
