nexoniarz/SchOS
nexoniarz/SchOS
Watch
1
0
Fork
You've already forked SchOS
 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Keyboard lights, TLB shootdowns, battery in sysfs, /proc/pid/maps

Browse source 
Caps, Num and Scroll Lock now light their LEDs on PS/2 and USB keyboards,
share one state between keyboards, and stop toggling on key repeat. X sets
them through evdev writes while it holds the keyboard.

Unmapping memory in a process with threads on other CPUs now flushes their
TLBs with an IPI. Without it a freed page stayed reachable through stale
translations, which corrupted Epiphany's heap on SMP.

ACPI batteries and AC adapters appear under /sys/class/power_supply.
/proc/<pid>/maps lists file mappings, and a process killed by a fault
names the file and offset it died in. r8169 gets a 256-entry RX ring.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
This commit is contained in:
Nexoniarz 2026-10-25 13:43:27 +01:00
commit 438e7af141
18 changed files with 945 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/arch/x86.h
View file

@ -198,6 +198,14 @@ lcr3(uint64 val)
asm volatile("mov %0,%%cr3" : : "r" (val));
}
static inline uint64
rcr3(void)
{
uint64 val;
asm volatile("mov %%cr3,%0" : "=r" (val));
return val;
}
// Invalidate the TLB entry for one page. Needed any time a PTE is changed
// or cleared for an address space that may still be the active CR3 —
// otherwise the CPU can keep translating through the stale entry until the