I wrote a quick program to take care of the 'vt_dont_switch' variable:
moving:~# cat unlock.c
#include <linux/vt.h>
#include <fcntl.h>
int main()
{
int fd = open("/dev/console", O_WRONLY);
ioctl(fd, VT_UNLOCKSWITCH, 0);
ioctl(fd, VT_RELDISP, 2);
}
First ioctl() to unlock my switching, second to relinquish the display
control in case it was left in the process controlled state:
open("/dev/console", O_WRONLY) = 3
ioctl(3, VT_UNLOCKSWITCH, 0) = 0
ioctl(3, VT_RELDISP, 0x2) = -1 EINVAL (Invalid argument)
_exit(-1) = ?
So I gather the unlock worked (I'm root), and the console is not X
controlled....but I still cannot switch VT's.
Alt+SysRq+K didn't work (although it did kill my PPP session since it was
that console), nor did Alt+SysRq+R.
I'm out of ideas looking at vt.c. Any other ideas as to what could be
keeping my console stuck on tty24? (or should I just reboot and forget it?)
--
George Greer greerga@muohio.edu | Genius may have its limitations, but
http://www.ham.muohio.edu/~greerga | stupidity is not thus handicapped.
| -- Elbert Hubbard
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