rtm
46bbd72f3e
no more recursive locks
...
wakeup1() assumes you hold proc_table_lock
sleep(chan, lock) provides atomic sleep-and-release to wait for condition
ugly code in swtch/scheduler to implement new sleep
fix lots of bugs in pipes, wait, and exit
fix bugs if timer interrupt goes off in schedule()
console locks per line, not per byte
2006-07-15 12:03:57 +00:00
rtm
6eb6f10c56
passes both usertests
...
exit had acquire where I meant release
swtch now checks that you hold no locks
2006-07-12 15:35:33 +00:00
rtm
664324745e
cvs add spinlock.h
...
fix race in schedule()
2006-07-12 09:10:25 +00:00
rtm
4e8f237be8
no more big kernel lock
...
succeeds at usertests.c pipe test
2006-07-12 01:48:35 +00:00
rtm
b41b38d0da
give each cpu its own clock, so that preemption works on cpu 1
2006-07-11 18:45:27 +00:00
rtm
b548df152b
pre-empt both user and kernel, in clock interrupt
...
usertest.c tests pre-emption
kill()
2006-07-11 17:39:45 +00:00
rtm
8b4e2a08fe
swtch saves callee-saved registers
...
swtch idles on per-CPU stack, not on calling process's stack
fix pipe bugs
usertest.c tests pipes, fork, exit, close
2006-07-01 21:26:01 +00:00
rtm
c41f1de5d4
file descriptors
...
pipes
2006-06-27 14:35:53 +00:00
