No, it is about the loop generated by the driver of the Intel wifi card who
tries to load himself indefinitely but without success because the linux
libre kernel lack the proprietary firmware to startup it, so the whole system
is heavy slowed down by this malfunction and the logs files in few days fill
the / partition.
However I've found that blacklisting the driver works
sudo modprob -r iwl3945
stop this malfunction until the next reboot, so now I've to impose this bash
command to be executed at every start up.
I find this sweeter than remove the Intel wifi card from a laptop :)