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Turn the syscall interrupt into a trap (by switching the gate type.)

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This leaves interrupts enabled while we're in the kernel, which is
precisely what we want.

This uncovered a horrendous problem with kernel tasks silently
overflowing their stacks. For now I've simply increased the stack size
but I need a more MMU-y solution for this eventually.
This commit is contained in:
Andreas Kling 2018-10-19 11:28:43 +02:00
parent 2d1d01661b
commit 46ff281695
6 changed files with 116 additions and 25 deletions
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10
Kernel/panel.cpp
View file

@ -16,12 +16,12 @@ panel_main()
for( ;; )
{
c = vga_get_cursor();
a = vga_get_attr();
/* HACK: Avoid getting interrupted while painting since
* that could lead to fugly artifacts ;P */
disableInterrupts();
cli();
c = vga_get_cursor();
a = vga_get_attr();
vga_set_attr( 0x17 );
vga_set_cursor( 80 * 24 );
@ -39,7 +39,7 @@ panel_main()
vga_set_cursor( c );
/* HACK cont.d */
enableInterrupts();
sti();
sleep( 1 * TICKS_PER_SECOND );
}