proc behavior

[Rene]

Hello,

when I run `cat /proc/9/environ` in Guix/Hurd vm I see the following:

root@manada ~# cat /proc/9/environ 

cat: /proc/9/environ: Input/output error

root@manada ~# cat /proc/50/environ 

cat: /proc/50/environ: Input/output error

root@manada ~# cat /proc/56/environ 

cat: /proc/56/environ: Input/output error

root@manada ~# cat /proc/2/environ 

root@manada ~# cat /proc/3/environ 

root@manada ~# cat /proc/5/environ 

root@manada ~# cat /proc/6/environ

root@manada ~# uname -a

GNU manada 0.9 GNU-Mach 1.8/Hurd-0.9 i686-AT386 GNU

some PIDs show the output and some show `Input/output error`.

any ideas about what might be missing?

I also see this behavior in Debian, I attach the rpctrace log.

Rene

rpc-environ-9.log
Description: Text document