Re: [PATCH 2/2] block: remove the ioprio field from struct request

[Sam Protsenko]

Hi Christoph,

This patch causes a regression on E850-96 board. Specifically, there are
two noticeable time lags when booting Debian rootfs:

  1. When systemd reports this stage:

         "Reached target getty.target - Login Prompts."

     it hangs for 5 seconds or so, before going further.

  2. When I'm logging in, the system hangs for 60 seconds or so before
     the shell prompt appears.

It only seems to reproduce the first time (during the boot). My attempt to
re-start the mentioned systemd target or run "login" command again worked
fine.

Reverting commit 6975c1a486a4 ("block: remove the ioprio field from
struct request") fixes the issue for me. Do you have any ideas by chance
what might be the reason? Or maybe you have any pointers on debugging it?

Thanks!