[Bug 99130] [IVB] CONFIG_PROVE_LOCKING=y causes igt/gem_exec/basic-wait-all (and possibly others) to fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99130

--- Comment #14 from Dorota Czaplejewicz <dorota.czaplejewicz at collabora.co.uk> ---
# cat /proc/consoles
tty0                 -WU (EC p  )    4:1

Upon further digging, the slow stack *seems* like this (may be wrong, the
tracing tool is less useful with huge numbers of calls):

console_unlock()
 call_console_drivers.isra.0.constprop.15()
  vt_console_print()
   lf()
    scrup()
     fbcon_scroll()
      fbcon_cursor()
       fbcon_redraw.isra.17()

Inside of this, the delay is split up among many shorter calls, most time
occupied by fbcon_putcs -> bit_putcs -> cfb_imageblit.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20161221/186fef40/attachment-0001.html>