On Tue, Sep 10, 2019 at 07:56:35AM -0400, Theodore Y. Ts'o wrote: > Hmm, I'm not seeing this on a Dell XPS 13 (model 9380) using a Debian > Bullseye (Testing) running a rc4+ kernel. > > This could be because Debian is simply doing more I/O; or it could be > because I don't have some package installed which is trying to reading > from /dev/random or calling getrandom(2). Previously, Fedora ran into > blocking issues because of some FIPS compliance patches to some > userspace daemons. So it's going to be very user space dependent and > package dependent. Btw, I've been seeing this issue on debian testing with an XFS root file system ever since the blocking random changes went in. There are a few reports (not from me) in the BTS since. I ended up just giving up on gdm and using lightdm instead as it was clearly related to that.