Why probe nfsd.proc.read and probe nfsd.read are not executed ?

[FOPA Leon constantin]

Hi

I have setup a simple nfs server for only one client and I am 
interested about logging all operations (performed by the client) 
executed by the nfs daemon (nfsd in the server side).

So I used the systemtap nfsd tapset 
(https://sourceware.org/systemtap/man/tapset::nfsd.3stap.html) as shown 
in the code (see below).

The problem is that when I run this systemtap code and perform file 
operation in the nfs mount point in the client,
every probe are execute but NOT the probe nfsd.proc.read and probe 
nfsd.read.

Is there a reason for this ? Am I missing something ?

Best regards,

Fopa Léon Constantin


probe begin{
       printf("Let play with nfsd ...\n")
}

probe nfsd.dispatch {
   printf("hello nfsd.dispatch occured\n")
}

probe nfsd.proc.write {
   printf("hello nfsd.proc.write occured\n")
}

probe nfsd.proc.read {
   printf("hello nfsd.proc.read occured\n")
}

probe nfsd.proc.rename {
   printf("hello nfsd.proc.rename occured\n")
}

probe nfsd.proc.remove {
   printf("hello nfsd.proc.remove occured\n")
}

probe nfsd.unlink {
   printf("hello nfsd.unlink occured\n")
}

probe nfsd.read {
   printf("hello nfsd.read occured\n")
}

probe end{
       printf("That was fun ...\n")
}