^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ kernel: \[ *[[:digit:]]+\.[[:digit:]]+\] nfsd: last server has exited, flushing export cache$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ kernel: \[ *[[:digit:]]+\.[[:digit:]]+\] NFSD: Using UMH upcall client tracking operations\.$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ kernel: \[ *[[:digit:]]+\.[[:digit:]]+\] NFSD: starting 90-second grace period \(net [[:xdigit:]]+\)$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ kernel: \[ *[[:digit:]]+\.[[:digit:]]+\] perf: interrupt took too long ([[:digit:]]+ > [[:digit:]]+), lowering kernel.perf_event_max_sample_rate to [[:digit:]]+$