On Wednesday 03 November 2004 06:27, Benjamin Herrenschmidt wrote:

On Tue, 2004-11-02 at 19:46 +0800, Antonino A. Daplas wrote:

quoted

The frambuffer console is still writing to the graphics hardware even if
the hardware is not owned anymore by the console.  This can lead to
crashes with some hardware.

A trace of the source indicates that it comes from almost anywhere,
anytime.

The fix is to return immediately if vc_mode != KD_TEXT.  The test is
placed in the following functions if not already present.

fbcon_cursor()
fbcon_putcs()
fbcon_clear()
fbcon_bmove()
fbcon_blank()

Since the exact same thing must be done if the fbdev are "asleep", can't

There is already a test that checks for console_blanked and FBINFO_STATE_RUNNING
in all of the above.  Yes, I can combine all three in one inline helper so it's cleaner.

Tony




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