Commit Graph

55 Commits

Author SHA1 Message Date
chs 22d140fd0b ifdef DEBUG, increase the max size we'll overwrite in freed memory blocks
to detect modifications after frees from 32 bytes to 1 page.
2000-11-24 00:34:32 +00:00
mrg 32aa199ccf remove include of <vm/vm.h> 2000-06-27 17:41:07 +00:00
mrg 2f159a1bac remove/move more mach vm header files:
<vm/pglist.h> -> <uvm/uvm_pglist.h>
	<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
	<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
	<vm/vm_object.h> -> nothing
	<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
2000-06-26 14:20:25 +00:00
sommerfeld 137a54db78 Improve #error message slightly. 2000-05-26 23:18:26 +00:00
thorpej e633df2afa __predict_false() the check for bogus malloc type, running out of space
in kmem_map, and the DIAGNOSTIC error checks.
2000-05-08 20:02:21 +00:00
augustss 264f1d27c6 Get rid of register declarations. 2000-03-30 09:27:11 +00:00
thorpej eb9cbbe294 Add some very simple code to auto-size the kmem_map. We take the
amount of physical memory, divide it by 4, and then allow machine
dependent code to place upper and lower bounds on the size.  Export
the computed value to userspace via the new "vm.nkmempages" sysctl.

NKMEMCLUSTERS is now deprecated and will generate an error if you
attempt to use it.  The new option, should you choose to use it,
is called NKMEMPAGES, and two new options NKMEMPAGES_MIN and
NKMEMPAGES_MAX allow the user to configure the bounds in the kernel
config file.
2000-02-11 19:22:52 +00:00
thorpej 9069b40366 Add a sanity check to ensure that a region being free()'d is actually
within the KVA range malloc() would return.
2000-02-01 19:37:58 +00:00
ragge 184f8b2c39 First round of discarding the CL* macros. 1999-12-03 21:43:19 +00:00
fvdl 0b1963121a Add Kirk McKusick's soft updates code to the trunk. Not enabled by
default, as the copyright on the main file (ffs_softdep.c) is such
that is has been put into gnusrc. options SOFTDEP will pull this
in. This code also contains the trickle syncer.

Bump version number to 1.4O
1999-11-15 18:49:07 +00:00
chs 327e64d87b remove simplelockrecurse, it's no longer needed. 1999-07-19 03:17:42 +00:00
thorpej 2c3dc83a64 Keep interrupt-safe maps on an additional queue. In uvm_fault(), if we're
looking up a kernel address, check to see if the address is on this
"interrupt-safe" list.  If so, return failure immediately.  This prevents
a locking screw if a page fault is taken on an interrupt-safe map in or
out of interrupt context.
1999-06-04 23:38:41 +00:00
thorpej e50ef977d1 Don't use a read lock on an intrsafe map; these maps can only use exclusive,
non-sleeping locks.
1999-05-28 19:40:09 +00:00
thorpej 2580d306ab Change the vm_map's "entries_pageable" member to a r/o flags member, which
has PAGEABLE and INTRSAFE flags.  PAGEABLE now really means "pageable",
not "allocate vm_map_entry's from non-static pool", so update all map
creations to reflect that.  INTRSAFE maps are maps that are used in
interrupt context (e.g. kmem_map, mb_map), and thus use the static
map entry pool (XXX as does kernel_map, for now).  This will eventually
change now these maps are locked, as well.
1999-05-26 19:16:28 +00:00
mrg d2397ac5f7 completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.
1999-03-24 05:50:49 +00:00
chs 254ae63e2c avoid math on void *. 1999-01-22 07:55:49 +00:00
thorpej d90b3d3438 Add dump_kmemstats(), callable from DDB to show kmem statistics. From
Chuck Silvers via Chuck Cranor.
1998-12-02 20:35:28 +00:00
chs 61458d7dfa LOCKDEBUG enhancements for non-MP:
keep a list of locked locks.
use this to print where the lock was locked
when we either go to sleep with a lock held
or try to free a locked lock.
1998-11-04 06:19:55 +00:00
christos 34c5a58bb4 Make copyrights consistent; fix weird/trailing spaces add missing (c) etc. 1998-09-12 17:20:02 +00:00
thorpej f3d7e7e21c Add some braces to make egcs happy (ambiguous else warning). 1998-08-18 06:11:35 +00:00
eeh a2dd74ed79 Merge paddr_t changes into the main branch. 1998-08-13 02:10:37 +00:00
perry 275d1554aa Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one.
bcopy(x, y, z) ->  memcpy(y, x, z)
ovbcopy(x, y, z) -> memmove(y, x, z)
   bcmp(x, y, z) ->  memcmp(x, y, z)
  bzero(x, y)    ->  memset(x, 0, y)
1998-08-04 04:03:10 +00:00
thorpej ad7a87400a defopt LOCKDEBUG 1998-05-20 01:32:29 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
mrg d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW.
- remove unnecessary UVMHIST_DECL's.
1998-02-10 14:08:44 +00:00
thorpej 1305ecbe62 Allow callers of uvm_km_suballoc() to specify where the base of the
submap _must_ begin, by adding a "fixed" boolean argument.
1998-02-08 06:15:53 +00:00
chs 0711fdaf0b fix a locking problem by replacing the call to uvm_kernacc()
with an inlined version that uses kmem_map instead of kernel_map.
1998-02-07 02:40:36 +00:00
mrg 1a8c7604f4 initial import of the new virtual memory system, UVM, into -current.
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the rest of the MI portion changes.

this will be KNF'd shortly.  :-)
1998-02-05 07:59:28 +00:00
thorpej 66abe4217c Implement an activity log for malloc() and free(), useful for tracking
down "Data modified on freelist" and "muliple free" problems.

The log is activated by the MALLOCLOG option, and the size of the
event ring buffer is controlable via the MALLOGLOGSIZE option (default
is 100000 entries).

From Chris Demetriou, cleaned up a little by me per suggestions in the
e-mail from Chris that contained the code.
1998-01-21 22:24:32 +00:00
mycroft 57f5a4a68d Add another bit of const poisoning. 1997-10-09 13:05:59 +00:00
mycroft 8579e3480d Make memname[] const (but only shallow, since the array may be modified). 1997-10-09 13:02:18 +00:00
thorpej 7b30910b48 KMEMSTATS is a header option; pull in "opt_kmemstats.h". 1997-02-02 21:22:16 +00:00
tls e9a5b29d40 add #ifdef KMEMSTATS around variable otherwise unused; now compiles with KMEMSTATS turned off. 1997-01-30 06:50:46 +00:00
christos f443b89c92 backout previous kprintf change 1996-10-13 02:32:29 +00:00
christos 60d201973e printf -> kprintf, sprintf -> ksprintf 1996-10-10 22:46:11 +00:00
cgd f8ed933394 implement realloc(), just like the user-land version, except it takes
"type" and "flags" arguments a la kernel malloc().
1996-08-27 20:01:42 +00:00
thorpej d719cb7901 Inside some DIAGNOSTIC code, cast some pointer arithmetic results
to long to quiet the compiler.
1996-08-13 23:25:10 +00:00
cgd 1c5ea3c014 print difference between pointers with %ld, so that -Wformat works
on the Alpha and for consistency.  Also, other minor formatting cleanups.
1996-07-10 18:15:22 +00:00
cgd 06c209646e handle the case where kmem_malloc() returns NULL in the 'can wait' case.
Right now, this code just panic()s (same as kmem_malloc() used to do
before, but different message), but in the future it should be modified
to try to reclaim wasted memory.
1996-06-13 16:53:34 +00:00
cgd 57b8bdb5c3 Fix a bug where free()ing an already-free block, or even a block that looked
like it might have already been freed, would cause a crash because of a bad
pointer dereference.  Pointed out by Brian Noble <bnoble@cs.cmu.edu>.
1996-06-06 19:13:32 +00:00
christos c9e746a335 Fix printf() formats. 1996-03-16 23:17:04 +00:00
cgd c0cdc0cf04 when printing data modified on the free list:
(1) do not cast it to (void *), and
	(2) print it as 0x%x, rather than %p.
This is not perfect (because the data being printed is "int32_t"-sized), but
is more correct than printing it as a pointer because the data is _not_ a
pointer, it is data to be printed in hex, and on some systems, pointers are
wider than the data items being printed, which leads to excess and misleading
output.  The only 'right' solution to this is to have a printf specifier
that prints the fixed-sized types the right way, and that's not really
practical.
1996-02-20 23:56:16 +00:00
christos 09afd77655 More proto fixes 1996-02-09 18:59:18 +00:00
christos 8a5b1b92e2 First pass at prototyping 1996-02-04 02:15:01 +00:00
cgd 3d9ffd41f3 make this work sanely on a 64-bit machine. Sacrifices a small bit of
error checking in the DIAGNOSTIC case.  These changes might be backed out,
if it's decided that MINBUCKET should be 5 (rather than 4) on the alpha.
However, doing that has its own set of nasty consequences.
1995-05-01 22:39:11 +00:00
mycroft 7439778432 Use %p. 1995-03-19 23:44:44 +00:00
cgd cf92afd66e New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:29:24 +00:00
cgd 344fb896fd new kernel malloc. much better (but slower) diagnostic checking 1994-05-13 08:32:17 +00:00
mycroft 21edb9924e Canonicalize all #includes. 1993-12-18 03:59:02 +00:00
cgd 5287574e0a get rid of bogus retrymalloc code (and it was bogus)... 1993-07-15 13:33:23 +00:00