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247 Commits

Author SHA1 Message Date
yamt 0c38201391 add ddb "whatis" command. inspired from solaris ::whatis dcmd. 2007-12-13 02:45:09 +00:00
xtraeme f444fd7856 Make this build without LOCKDEBUG (the if statement that uses 
LOCKDEBUG_MEM_CHECK).
 2007-11-26 08:22:32 +00:00
yamt 1a95aafc2b uvm_map_extract: for UVM_EXTRACT_QREF, mark entries UVM_MAP_NOMERGE. 2007-11-26 08:20:46 +00:00
yamt 89169ed40b uvm_unmap1: LOCKDEBUG_MEM_CHECK for kernel_map. 2007-11-26 08:15:19 +00:00
yamt 0de985a71c uvm_map_reserve: don't ignore alignment. fixes mremap. 2007-10-15 11:24:30 +00:00
skrll 0d58a1f020 Don't restrict the offset when allocating a map entry for in-kernel map - 
use UVM_UNKNOWN_OFFSET in the call to uvm_map_prepare.

This fixes a '"panic: malloc: out of space in kmem_map" when it's not
really' testcase of mine, and one reported to me by chuq. This is likely
to fix PR/35587 as well.

Looks/seems fine to me from chuq and yamt. Thanks.
 2007-10-12 06:45:17 +00:00
ad 7dad9f7391 Merge from vmlocking: 
- Split vnode::v_flag into three fields, depending on field locking.
- simple_lock -> kmutex in a few places.
- Fix some simple locking problems.
 2007-10-10 20:42:20 +00:00
ad a412ed5978 Also initialize map->lock for INTRSAFE maps. 2007-08-20 13:34:52 +00:00
ad f6481c29d3 uvmspace_free: destroy locks. 2007-08-20 13:33:47 +00:00
ad 4688843d2b Merge unobtrusive locking changes from the vmlocking branch. 2007-07-21 19:21:53 +00:00
ad 88ab7da936 Merge some of the less invasive changes from the vmlocking branch: 
- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements
 2007-07-09 20:51:58 +00:00
ad 59d979c5f1 Pass an ipl argument to pool_init/POOL_INIT to be used when initializing 
the pool's lock.
 2007-03-12 18:18:22 +00:00
christos 53524e44ef Kill caddr_t; there will be some MI fallout, but it will be fixed shortly. 2007-03-04 05:59:00 +00:00
thorpej b3667ada6d TRUE -> true, FALSE -> false 2007-02-22 06:05:00 +00:00
thorpej 712239e366 Replace the Mach-derived boolean_t type with the C99 bool type. A 
future commit will replace use of TRUE and FALSE with true and false.
 2007-02-21 22:59:35 +00:00
yamt 1a7bc55dcc remove some __unused from function parameters. 2006-11-01 10:17:58 +00:00
uwe 5704a46a71 uvm_page_printall: With new PQ_* flags pg->pqflags no longer fits and 
makes the output of "show all pages" ragged.  Widen the field to 4 chars.
 2006-10-26 20:00:52 +00:00
christos 4d595fd7b1 - sprinkle __unused on function decls. 
- fix a couple of unused bugs
- no more -Wno-unused for i386
 2006-10-12 01:30:41 +00:00
yamt 8e991698b9 revert a change which was unintentionally slipped in via yamt-pdpolicy branch. 2006-09-16 07:14:38 +00:00
yamt 9d3e3eab23 merge yamt-pdpolicy branch. 
- separate page replacement policy from the rest of kernel
	- implement an alternative replacement policy
 2006-09-15 15:51:12 +00:00
yamt d447115889 make amap use kmem_alloc, rather than malloc. 
(ie. make it use kernel_map, rather than kmem_map.)
kmem_map is more restricted than kernel_map,
and there's no point for amap to use it.
 2006-06-25 08:03:46 +00:00
yamt c24f70bcad move wait points for kva from upper layers to vm_map. PR/33185 #1. 
XXX there is a concern about interaction with kva fragmentation.
see: http://mail-index.NetBSD.org/tech-kern/2006/05/11/0000.html
 2006-05-25 14:27:28 +00:00
elad b3e7e1b010 Better implementation of PaX MPROTECT, after looking some more into the 
code and not trying to use temporary solutions.

Lots of comments and help from YAMAMOTO Takashi, also thanks to the PaX
author for being quick to recognize that something fishy's going on. :)

Hook up in mmap/vmcmd rather than (ugh!) uvm_map_protect().

Next time I suggest to commit a temporary solution just revoke my
commit bit.
 2006-05-20 15:45:37 +00:00
elad 04d63f90b5 Introduce PaX MPROTECT -- mprotect(2) restrictions used to strengthen 
W^X mappings.

Disabled by default.

First proposed in:

	http://mail-index.netbsd.org/tech-security/2005/12/18/0000.html

More information in:

	http://pax.grsecurity.net/docs/mprotect.txt

Read relevant parts of options(4) and sysctl(3) before using!

Lots of thanks to the PaX author and Matt Thomas.
 2006-05-16 00:08:24 +00:00
elad fc9422c9d9 integrate kauth. 2006-05-14 21:31:52 +00:00
yamt de6ea5711e - rename uvm_tree_sanity to uvm_map_check and add some 
(non tree related) checks.
- remove treesanity_label.  instead, just panic if any corruption is detected.
 2006-05-14 08:22:50 +00:00
yamt 37f3579cf8 - uvm_mapent_trymerge: don't forget to update hints. 
- clear_hints: new function.
- uvm_map_replace: use clear_hints.  no functional change.
- add some assertions.
 2006-05-14 08:21:36 +00:00
yamt be55e1f38a update first_free correctly. 2006-05-14 08:20:35 +00:00
yamt 38ae305f09 uvm_km_suballoc: consider kva overhead of "kmapent". 
fixes PR/31275 (me) and PR/32287 (Christian Biere).
 2006-05-03 14:12:01 +00:00
yamt 0f4aad0236 - share some code between uvm_map_clip_end and uvm_map_clip_start. 
- add a map entry sanity-check function, uvm_mapent_check().

discussed on source-changes@.
 2006-04-21 14:03:01 +00:00
christos 7778288678 Coverity CID 762: Protect against NULL dereferencing entry->object.uvm_obj 
like we do a few lines before. Maybe all the tests should be changed
to UVM_ET_ISOBJ(), or the macro should do it internally?
 2006-04-13 01:11:08 +00:00
drochner e10923fd37 -clean up the interface to uvm_fault: the "fault type" didn't serve 
any purpose (done by a macro, so we don't save any cycles for now)
-kill vm_fault_t; it is not needed for real faults, and for simulated
 faults (wiring) it can be replaced by UVM internal flags
-remove <uvm/uvm_fault.h> from uvm_extern.h again
 2006-03-15 18:09:25 +00:00
yamt ec5a93183a merge yamt-uio_vmspace branch. 
- use vmspace rather than proc or lwp where appropriate.
  the latter is more natural to specify an address space.
  (and less likely to be abused for random purposes.)
- fix a swdmover race.
 2006-03-01 12:38:10 +00:00
bjh21 0638b201c9 Include page ownership information in the output of the DDB "show all pages" 
command if UVM_PAGE_TRKOWN is enabled.
 2006-02-22 22:20:56 +00:00
bjh21 ed2f09f139 Add a "show all pages" command to DDB which prints one line per physical 
page in the system.  Useful for getting some idea where all your memory's
gone, at least on a sufficiently small system.
 2006-02-19 18:52:29 +00:00
yamt 9040ed946b - amap_copy: take a "flags" argument instead of booleans. 
- add AMAP_COPY_NOMERGE flag, and use it for uvm_map_extract.
  PR/32806 from Julio M. Merino Vidal.
 2006-02-15 14:06:45 +00:00
yamt a3af4c1530 remove the following options. no objections on tech-kern@. 
UVM_PAGER_INLINE
	UVM_AMAP_INLINE
	UVM_PAGE_INLINE
	UVM_MAP_INLINE
 2006-02-11 12:45:07 +00:00
yamt e8e7ab8637 implement compat_linux mremap. 2006-01-21 13:34:15 +00:00
yamt 5865f6ed1d uvm_map_replace: remove a wrong comment. 2006-01-21 13:10:41 +00:00
yamt b88fc0e1b7 make some debug statistics evcnt. 2006-01-15 08:31:31 +00:00
yamt 37dd42949a clean up uvm_map evcnt code. no functional changes. 2006-01-08 09:18:27 +00:00
perry 0f0296d88a Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete. 2005-12-24 20:45:08 +00:00
christos 95e1ffb156 merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
thorpej 5303f3b378 Clean up the cpp macro used to say "we're compiling this specific C file". 2005-06-28 05:25:42 +00:00
thorpej fcd6584a58 Clean up the use of __inline in this file. In particular, don't inline 
really big chunks of code.  This saves almost 2.5K on a GENERIC i386
kernel, and has the added benefit of not polluting the I$ so much.
 2005-06-28 01:07:56 +00:00
jmc 1786cf4f46 Change signature of uvm_kmapent_map defintiion to __INLINE to match prototype 2005-06-13 20:39:14 +00:00
dsl d68ddde829 If we are builging a small kernel [1], don't inline all these functions. 
Saves over 2k and lets i386 rescue_tiny build again.
[1] if MALLOC_NOINLINE is defined - not ideal but...
 2005-06-10 22:00:52 +00:00
matt 25a0e29a75 When writing coredumps, don't write zero uninstantiated demand-zero pages. 
Also, with ELF core dumps, trim trailing zeroes from sections.  These two
changes can shrink coredumps by over 50% in size.
 2005-06-02 17:01:43 +00:00
christos e715d2ee98 avoid shadow variables. 
remove unneeded casts.
 2005-05-29 21:06:33 +00:00
yamt faf63ba09b uvm_kmapent_free: add missing vm_map_lock/unlock. 2005-05-22 21:37:56 +00:00