Messages in this thread Patch in this message | | | Date | Sun, 21 Jul 2002 12:50:32 +0200 (SAST) | From | Zwane Mwaikambo <> | Subject | Re: [PATCH -ac] Panicking in morse code v3 |
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On Sun, 21 Jul 2002, Russell King wrote:
> Otherwise it becomes a "toy" feature that doesn't have much value. > What would be more useful would be to disable the console blank > timer on a panic() so it doesn't blank half-way through someone > reading the oops, leaving them with no way to read the rest of it!
I actually thought of that last night when it happened whilst examining an oops.
--- linux-2.5.25/kernel/panic.c.orig Sun Jul 21 12:45:56 2002 +++ linux-2.5.25/kernel/panic.c Sun Jul 21 12:09:42 2002 @@ -49,6 +49,9 @@ unsigned long caller = (unsigned long) __builtin_return_address(0); #endif +#ifdef CONFIG_VT + disable_console_blank(); +#endif bust_spinlocks(1); va_start(args, fmt); vsprintf(buf, fmt, args); --- linux-2.5.25/drivers/char/console.c.orig Sun Jul 21 12:46:18 2002 +++ linux-2.5.25/drivers/char/console.c Sun Jul 21 12:24:31 2002 @@ -2758,6 +2758,12 @@ timer_do_blank_screen(0, 1); } +void disable_console_blank(void) +{ + del_timer_sync(&console_timer); + blankinterval = 0; +} + void poke_blanked_console(void) { del_timer(&console_timer); --- linux-2.5.25/include/linux/console.h.orig Sun Jul 21 12:47:01 2002 +++ linux-2.5.25/include/linux/console.h Sun Jul 21 12:25:42 2002 @@ -112,6 +112,7 @@ extern void release_console_sem(void); extern void console_conditional_schedule(void); extern void console_unblank(void); +extern void disable_console_blank(void); /* VESA Blanking Levels */ #define VESA_NO_BLANKING 0 -- function.linuxpower.ca
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