Commit b45cfba4e9005d64d419718e7ff7f7cab44c1994 (vt,console,kdb: implement atomic console enter/leave functions) introduced the ability to atomically change the console mode with kernel mode setting but did not preserve the state of the console_blanked variable.
The console_blanked variable must be restored when executing the con_debug_leave() or further kernel mode set changes (such as using chvt X) will fail to correctly set the state of console. Signed-off-by: Jason Wessel <[email protected]> Reviewed-by: Jesse Barnes <[email protected]> CC: Andrew Morton <[email protected]> --- drivers/char/vt.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 3af1a22..50590c7 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -198,6 +198,7 @@ static int saved_fg_console; static int saved_last_console; static int saved_want_console; static int saved_vc_mode; +static int saved_console_blanked; /* * For each existing display, we have a pointer to console currently visible @@ -3449,6 +3450,7 @@ int con_debug_enter(struct vc_data *vc) saved_last_console = last_console; saved_want_console = want_console; saved_vc_mode = vc->vc_mode; + saved_console_blanked = console_blanked; vc->vc_mode = KD_TEXT; console_blanked = 0; if (vc->vc_sw->con_debug_enter) @@ -3492,6 +3494,7 @@ int con_debug_leave(void) fg_console = saved_fg_console; last_console = saved_last_console; want_console = saved_want_console; + console_blanked = saved_console_blanked; vc_cons[fg_console].d->vc_mode = saved_vc_mode; vc = vc_cons[fg_console].d; -- 1.6.3.3 ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Kgdb-bugreport mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kgdb-bugreport
