Commit Graph

23 Commits

Author SHA1 Message Date
ross c297f000b7 NFS swap fix. Most files here are modified purely to add a tsleep() wmesg
string. The actual functional changes are:

	1. in vm_page_alloc(), restore some long lost code by Paul Kranenburg
	that reserves the last few pages for kernel objects, adding an
	additional escape for the pageout daemon.

	2. In vm_wait() (replaces VM_WAIT), recognize the amusing fatal
	deadlock where the pagedemon sleeps on a channel that only it ever
	wakes up, and add a timeout and printf. Mod 1 should generally
	prevent this from happening in any case.

	3. Fix a livelock in vm_pageout_page() caused by a pre-wakeup of
	page consumers prior to the pageout, which can easily fail over
	memory issues in NFS and IP code. Also, ++ cnt.v_pageouts only
	if the pageout succeeded.
1998-01-31 04:02:39 +00:00
chuck 081b0ea365 correct a comment 1997-09-22 15:22:12 +00:00
mrg 4f2a217c2b pull up vm_object_collapse() fix from mrg_vm_object_collapse branch.
many thanks to niklas hallqvist (niklas@appli.se) for this.
1997-01-03 18:03:14 +00:00
christos 3dc7953eec back out previous kprintf changes 1996-10-12 21:50:05 +00:00
christos de1b2b437e printf -> kprintf, sprintf -> ksprintf 1996-10-10 17:16:17 +00:00
cgd 62034405e6 allow kmem_malloc to return NULL if canwait is set and there's no map space
left, rather than panic()ing.  This allows callers to set their own policy
for how to handle the shortage.  Add a few comments.
1996-06-13 16:52:06 +00:00
mycroft 68c8c80929 kernel_pmap --> pmap_kernel() 1995-04-10 16:48:27 +00:00
cgd 86095ef7e6 no need to have two lines of arguments here. 1995-01-09 02:45:47 +00:00
cgd 0a930e5ce6 redo that last change, correctly. (suggested by mycroft.) 1994-10-30 19:11:09 +00:00
cgd aa151f86b3 change some strategic casts to (*long) from (*int). 1994-10-29 07:35:04 +00:00
cgd fccfa11af5 New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:39:25 +00:00
cgd 9608c5b657 clean up slightly; change RCS ID's to be minimally intrusive 1994-06-27 04:55:46 +00:00
cgd 3495827959 new VM code, from 4.4-Lite 1994-05-23 03:11:20 +00:00
mycroft 9dd94bc684 Still more prototypes. 1994-01-08 05:26:10 +00:00
mycroft 8955aeedd5 #include vm_user.h. 1994-01-08 04:15:41 +00:00
cgd c26286a5c1 bring changes down from magnum 1993-12-20 12:39:55 +00:00
mycroft b4d3382694 Canonicalize all #includes. 1993-12-17 07:56:32 +00:00
cgd 5287574e0a get rid of bogus retrymalloc code (and it was bogus)... 1993-07-15 13:33:23 +00:00
deraadt ada4945e6b patches to make kernel malloc() retryable. from <MDICKSON@CSI.compuserve.com> 1993-05-27 14:34:29 +00:00
cgd cc5e8e00d5 add rcs ids and clean up headers 1993-05-20 03:59:08 +00:00
cgd 645b67012b make it panic, like i thought it did, for mb_map too small. 1993-04-29 08:57:02 +00:00
cgd 64354bb7c6 broke out panics for *_map too small, and tried to coalesce the maps more
often.
1993-03-31 21:53:56 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00