https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193269
--- Comment #4 from commit-h...@freebsd.org ---
A commit references this bug:
Author: dumbbell
Date: Thu Sep 18 14:38:21 UTC 2014
New revision: 271769
URL: http://svnweb.freebsd.org/changeset/base/271769
Log:
vt(4): Merge several bug fixes and improvements
SVN revisions in this MFC:
269779 270705 270706 271180 271250 271253 271682 271684
Detailed commit list:
r269779:
fbd: Fix a bug where vt_fb_attach() success would be considered a failure
vt_fb_attach() currently always returns 0, but it could return a code
defined in errno.h. However, it doesn't return a CN_* code. So checking
its return value against CN_DEAD (which is 0) is incorrect, and in this
case, a success becomes a failure.
The consequence was unimportant, because the caller (drm_fb_helper.c)
would only log an error message in this case. The console would still
work.
Approved by:nwhitehorn
r270705:
vt(4): Add cngrab() and cnungrab() callbacks
They are used when a panic occurs or when entering a DDB session for
instance.
cngrab() forces a vt-switch to the console window, no matter if the
original window is another terminal or an X session. However, cnungrab()
doesn't vt-switch back to the original window currently.
r270706:
drm: Don't "taskqueue" vt-switch if under DDB/panic situation
If DDB is active, we can't use a taskqueue thread to switch away from
the X window, because this thread can't run.
Reviewed by:ray@
Approved by:ray@
r271180:
vt_vga: vd_setpixel_t and vd_drawrect_t are noop in text mode
r271250:
vt(4): Change the terminal and buffer sizes, even without a font
This fixes a bug where scroll lock would not work for tty #0 when using
vt_vga's textmode. The reason was that this window is created with a
static 256x100 buffer, larger than the real size of 80x25.
Now, in vt_change_font() and vt_compute_drawable_area(), we still
perform operations even of the window has no font loaded (this is the
case in textmode here vw->vw_font == NULL). One of these operation
resizes the buffer accordingly.
In vt_compute_drawable_area(), we take the terminal size as is (ie.
80x25) for the drawable area.
The font argument to vt_set_border() is removed (it was never used) and
the code now uses the computed drawable area instead of re-doing its own
calculation.
Reported by:Harald Schmalzbauer
Tested by:Harald Schmalzbauer
r271253:
pause_sbt(): Take the cold path (ie. use DELAY()) if KDB is active
This fixes a panic in the i915 driver when one uses debug.kdb.enter=1
under vt(4).
PR:193269
Reported by:emaste@
Submitted by:avg@
r271682:
vt(4): Fix a LOR which occurs during a call to vt_upgrade()
Reported by:kib@
Review:https://reviews.freebsd.org/D785
Reviewed by:ray@
Approved by:ray@
r271684:
vt(4): Use vt_fb_drawrect() and vt_fb_setpixel() in all vt_fb-derivative
Review:https://reviews.freebsd.org/D789
Reviewed by:nwhitehorn
Approved by:nwhitehorn
Approved by:re (gjb)
Changes:
_U stable/10/
stable/10/sys/dev/drm2/drm_fb_helper.c
stable/10/sys/dev/fb/fbd.c
stable/10/sys/dev/vt/hw/efifb/efifb.c
stable/10/sys/dev/vt/hw/fb/vt_early_fb.c
stable/10/sys/dev/vt/hw/fb/vt_fb.c
stable/10/sys/dev/vt/hw/fb/vt_fb.h
stable/10/sys/dev/vt/hw/vga/vt_vga.c
stable/10/sys/dev/vt/vt.h
stable/10/sys/dev/vt/vt_core.c
stable/10/sys/kern/kern_synch.c
stable/10/sys/kern/subr_terminal.c
stable/10/sys/powerpc/ps3/ps3_syscons.c
stable/10/sys/sys/terminal.h
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