6 commits

Author	SHA1	Message	Date
rtm	5be0039ce9	interrupts could be recursive since lapic_eoi() called before rti ... so fast interrupts overflow the kernel stack fix: cli() before lapic_eoi()	2006-08-10 22:08:14 +00:00
rtm	bd228a8156	prevent longjmp / forkret from writing over tf->edi	2006-07-18 19:22:37 +00:00
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	4e8f237be8	no more big kernel lock ... succeeds at usertests.c pipe test	2006-07-12 01:48:35 +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