$ cat /proc/5222/stack [<0>] __vt_event_wait.isra.3.part.4+0x40/0x90 [<0>] vt_waitactive+0x80/0xd0 [<0>] vt_ioctl+0xd34/0x1150 [<0>] tty_ioctl+0xf6/0x8c0 [<0>] do_vfs_ioctl+0xa8/0x630 [<0>] ksys_ioctl+0x75/0x80 [<0>] __x64_sys_ioctl+0x1a/0x20 [<0>] do_syscall_64+0x5a/0x120 [<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [<0>] 0xffffffffffffffff
# drivers/tty/vt/vt_ioctl.c /** * vt_waitactive - active console wait * @event: event code * @n: new console * * Helper for event waits. Used to implement the legacy * event waiting ioctls in terms of events */ int vt_waitactive(int n) { struct vt_event_wait vw; do { vw.event.event = VT_EVENT_SWITCH; __vt_event_queue(&vw); if (n == fg_console + 1) { __vt_event_dequeue(&vw); break; } __vt_event_wait(&vw); __vt_event_dequeue(&vw); if (vw.done == 0) return -EINTR; } while (vw.event.newev != n); return 0; } # drivers/tty/vt/vt_ioctl.c static void __vt_event_wait(struct vt_event_wait *vw) { /* Wait for it to pass */ wait_event_interruptible(vt_event_waitqueue, vw->done); } # include/linux/wait.h /** * wait_event_interruptible - sleep until a condition gets true * @wq_head: the waitqueue to wait on * @condition: a C expression for the event to wait for * * The process is put to sleep (TASK_INTERRUPTIBLE) until the * @condition evaluates to true or a signal is received. * The @condition is checked each time the waitqueue @wq_head is woken up. * * wake_up() has to be called after changing any variable that could * change the result of the wait condition. * * The function will return -ERESTARTSYS if it was interrupted by a * signal and 0 if @condition evaluated to true. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1817738 Title: Can't change virtual terminal when auto-login is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1817738/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs