Ubuntu
xserver-xorg-video-intel package

  1. Bug #177518
  2. Comment #41

Comment 41 for bug 177518

Revision history for this message
In , Michel-tungstengraphics (michel-tungstengraphics) wrote :

(In reply to comment #2)
> Data that is shared between a hard interrupt handler and a tasklet or a normal
> process should use spin_lock_irqsave() whereas data shared between a tasklet
> and a normal process should use spin_lock_bh()

Note that the tasklet callback function may also be called from normal process context if the tasklet couldn't acquire the DRM lock. Would spin_lock_bh() still work in that case?