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105113 Commits

Author SHA1 Message Date
Andrew Gallatin
df11547f5d Fix printing of long doubles to match the size that
gcc is using.  This fixes devstat consumers (like vmstat, iostat,
systat) so they don't print crazy zillion digit numbers for
disk transfers and bandwidth.

According to gcc, long doubles are 64-bits, rather than 128 bits
like the SVR4 ABI spec wants them to be..  Note that MacOSX also treats
long doubles as 64-bits, and not 128 bits, so we are in good company.

Reviewed by: das
Approved by: grehan
2004-07-19 23:56:07 +00:00
Brian Feldman
757cd67065 Remove extraneous locks on the VM free page queue mutex; it is not
meant to be recursed upon, and could cauuse a deadlock inside the
new contigmalloc (vm.old_contigmalloc=0) code.

Submitted by:	alc
2004-07-19 23:29:36 +00:00
Benno Rice
06167613da Identify VIA EHCI root hubs and at least one VIA USB2.0 controller. 2004-07-19 23:22:10 +00:00
Jayanth Vijayaraghavan
04f0d9a0ea Let IN_FASTREOCOVERY macro decide if we are in recovery mode.
Nuke sackhole_limit for now. We need to add it back to limit the total
number of sack blocks in the system.
2004-07-19 22:37:33 +00:00
Jayanth Vijayaraghavan
f787edd847 Fix a potential panic in the SACK code that was causing
1) data to be sent to the right of snd_recover.
2) send more data then whats in the send buffer.

The fix is to postpone sack retransmit to a subsequent recovery episode
if the current retransmit pointer is beyond snd_recover.

Thanks to Mohan Srinivasan for helping fix the bug.

Submitted by:Daniel Lang
2004-07-19 22:06:01 +00:00
Lukas Ertl
ec47b83454 Diff reduction to NetBSD.
usbdi.c rev. 1.104, author: mycroft
   ugen_isoc_rintr() may recycle the xfer immediately.  Therefore, we
   avoid touching the xfer after calling the callback in
   usb_transfer_complete().  From PR 25960.
2004-07-19 20:49:02 +00:00
Lukas Ertl
483c6192ec Diff reduction to NetBSD.
ehci.c rev. 1.69, author: mycroft
uhci.c rev. 1.179, author: mycroft
   hcpriv is not actually used here.  Remove references to it.

Obtained from:   NetBSD
2004-07-19 20:47:46 +00:00
Alan Cox
e832aafc51 - Eliminate the pte object from the pmap. Instead, page table pages are
allocated as "no object" pages.  Similar changes were made to the amd64
   and i386 pmap last year.  The primary reason being that maintaining
   a pte object leads to lock order violations.  A secondary reason being
   that the pte object is redundant, i.e., the page table itself can be
   used to lookup page table pages.  (Historical note: The pte object
   predates our ability to allocate "no object" pages.  Thus, the pte
   object was a necessary evil.)
 - Unconditionally check the vm object lock's status in vm_page_remove().
   Previously, this assertion could not be made on Alpha due to its use
   of a pte object.
2004-07-19 18:12:04 +00:00
Julian Elischer
3a63b92c12 You always spot the typos after you have committed.. Start sentence
with a Cap.
2004-07-19 18:06:12 +00:00
Julian Elischer
f6449d9d31 Allow the user who calls doadump() from the kernel debugger
to not get a page fault if he has not defined a dump device.
Panic can often not do a dump as it can hang forever in some cases.
 The original PR was for amd64 only. This is a generalised version of
that change.

PR:		amd64/67712
Submitted by:	wjw@withagen.nl <Willen Jan Withagen>
2004-07-19 18:03:02 +00:00
Robert Watson
36dd5f47d9 Further function forward declaration white space tweaks. 2004-07-19 17:18:58 +00:00
Robert Watson
439e36c655 Re-style at_control.c to bring it closer to style(9), primarily with
regard to function prototypes and indentation.  The lack of indentation
in if clauses and case statements made this code extremely difficult
to read.
2004-07-19 17:15:51 +00:00
Marcel Moolenaar
c465e9a1f0 prgregset_t changed type from being a typedef of struct reg to an
array of one element of type struct reg. Change the argument to
libc_r_md_getgregs() accordingly.
2004-07-19 16:54:52 +00:00
John Baldwin
788195c186 As a temporary hack, turn off deferred preemptions that are the result of
a fast interrupt handler doing an swi_sched().  This fixed the lockups I
saw on my laptop when using xmms in KDE and on rwatson's MySQL benchmarks
on SMP.  This will eventually be removed and/or modified when I figure out
what the root cause is and fix that.
2004-07-19 16:37:47 +00:00
Brian Feldman
0c3c862e21 Since breakage of malloc(9)/uma_zalloc(9) is totally non-optional in
GENERIC/for WITNESS users, make sure the sysctl to disable the behavior
is read-only and always enabled.
2004-07-19 15:05:24 +00:00
Tim Kientzle
040d3851d1 Guard against argv[0] being NULL.
Thanks to: Tim J Robbins
2004-07-19 14:54:38 +00:00
Hartmut Brandt
e9345b8636 Make it clearer what means 'won't work' for .if string == ${VAR}.
Replace the use of '=' in conditionals in the examples
by the more correct '=='.

Clarify the example explaining that .for expansion takes place before
.if handling by showing the correct code instead of saying 'the other
way around'. Change a variable name there so the example is more parseable
to the human reader.

PR:		docs/65400
Submitted by:	Roman Neuhauser <neuhauser@chello.cz>
2004-07-19 14:42:57 +00:00
Tim J. Robbins
be1e385e24 Avoid passing negative values to tolower() on machines with signed chars. 2004-07-19 12:57:24 +00:00
Hartmut Brandt
305627df81 Fix a typo that could provoke a panic or access to random memory.
PR:		kern/67012
Submitted by:	Zhenmin <zli4@cs.uiuc.edu>
2004-07-19 12:54:00 +00:00
Olivier Houchard
9cdb2bfc90 Make kdb_backtrace() sort of work. 2004-07-19 12:26:44 +00:00
Peter Grehan
98707ef546 Enable libpthread build for powerpc 2004-07-19 12:20:10 +00:00
Peter Grehan
0f47890401 PPC MD bits for KSE. Runs test cases OK. Crippled to 1:1 mode for
the time being.
2004-07-19 12:19:04 +00:00
Peter Grehan
cc73b0f03d Add signalcontext, required by KSE. 2004-07-19 12:08:03 +00:00
Peter Grehan
44d1098779 The new program counter should go into the trapframe's srr0 and
not the link register, which was lucky enough to work.
2004-07-19 12:05:07 +00:00
Tim J. Robbins
159cd5c64f Sort sections. 2004-07-19 11:21:34 +00:00
Tim J. Robbins
66339977f4 Move exit status information into a DIAGNOSTICS section. Add an ENVIRONMENT
section. Re-add a sentence from the BUGS section that went missing in
the previous commit.
2004-07-19 11:18:56 +00:00
Yoshihiro Takahashi
be1e68e14d MFi386: revision 1.596. 2004-07-19 11:17:57 +00:00
Tim J. Robbins
d67148e425 Add support for multibyte characters. While here, fix a longstanding bug in
the implementation of the -d option: we were skipping too many characters
when a non-alphanumeric character was encountered.
2004-07-19 11:12:02 +00:00
Tim J. Robbins
479918321d Point out in the BUGS section that look expects input files to have
been sorted with LC_COLLATE=C.
2004-07-19 10:03:38 +00:00
Tim J. Robbins
7cc9e6ddbb Add a skeleton makefile that runs the tests out of libc/regex/grot. 2004-07-19 09:00:26 +00:00
Tim J. Robbins
683d338a83 Oops, test error behaviour of wctrans(), not wctype(). 2004-07-19 08:53:41 +00:00
Tim J. Robbins
2ff3ba336e Update paths to reg*.c and regex2.h. Add a target to build regex.h. 2004-07-19 08:48:17 +00:00
Tim J. Robbins
405033831e Update for removal of cclass.h. Trim some useless targets. Invoke mkh
with "sh mkh" so it works if the script is not executable.
2004-07-19 08:41:11 +00:00
Tim J. Robbins
ec8b0411f1 Update for recent changes to struct re_guts. Disable printing the contents
of OANYOF sets for the moment.
2004-07-19 08:28:53 +00:00
Tim J. Robbins
f420a25887 Remove unused files. 2004-07-19 08:24:21 +00:00
David Schultz
0c90f88f7e Forced commit to note that the previous commit message doesn't apply
to the ARM port.  We set FLT_ROUNDS to -1 (indeterminate), because the
rounding mode on ARM is static, i.e. part of the FP instruction
format.  Or at least that's my understanding.
2004-07-19 08:24:04 +00:00
Gleb Smirnoff
ea34f3f697 Today is a good day to add myself here :)
Approved by:	julian (mentor)
2004-07-19 08:21:17 +00:00
David Schultz
b3cb43917d While testing fe[gs]etround(), make sure FLT_ROUNDS reflects the
proper rounding mode as well.
2004-07-19 08:17:47 +00:00
David Schultz
479f8d2214 Make FLT_ROUNDS correctly reflect the dynamic rounding mode. 2004-07-19 08:17:25 +00:00
David Schultz
ec79bc0da9 Fix two bugs in the signbit() macro, which was implemented last year:
- It was added to libc instead of libm.  Hopefully no programs rely
  on this mistake.

- It didn't work properly on large long doubles because its argument
  was converted to type double, resulting in undefined behavior.
2004-07-19 08:16:10 +00:00
Pawel Jakub Dawidek
e370e911b2 MFp4: Add two options for gnop(8)'s 'create' command:
-o offset - specifies where to start on the original provider
	-s size - specifies size of the transparent provider
2004-07-19 07:52:56 +00:00
Peter Grehan
3327cde241 Use the version field to identify the partial context used by
KSE process-scope threads.
2004-07-19 07:21:46 +00:00
Brian Feldman
4362fada8f Reimplement contigmalloc(9) with an algorithm which stands a greatly-
improved chance of working despite pressure from running programs.
Instead of trying to throw a bunch of pages out to swap and hope for
the best, only a range that can potentially fulfill contigmalloc(9)'s
request will have its contents paged out (potentially, not forcibly)
at a time.

The new contigmalloc operation still operates in three passes, but it
could potentially be tuned to more or less.  The first pass only looks
at pages in the cache and free pages, so they would be thrown out
without having to block.  If this is not enough, the subsequent passes
page out any unwired memory.  To combat memory pressure refragmenting
the section of memory being laundered, each page is removed from the
systems' free memory queue once it has been freed so that blocking
later doesn't cause the memory laundered so far to get reallocated.

The page-out operations are now blocking, as it would make little sense
to try to push out a page, then get its status immediately afterward
to remove it from the available free pages queue, if it's unlikely to
have been freed.  Another change is that if KVA allocation fails, the
allocated memory segment will be freed and not leaked.

There is a sysctl/tunable, defaulting to on, which causes the old
contigmalloc() algorithm to be used.  Nonetheless, I have been using
vm.old_contigmalloc=0 for over a month.  It is safe to switch at
run-time to see the difference it makes.

A new interface has been used which does not require mapping the
allocated pages into KVA: vm_page.h functions vm_page_alloc_contig()
and vm_page_release_contig().  These are what vm.old_contigmalloc=0
uses internally, so the sysctl/tunable does not affect their operation.

When using the contigmalloc(9) and contigfree(9) interfaces, memory
is now tracked with malloc(9) stats.  Several functions have been
exported from kern_malloc.c to allow other subsystems to use these
statistics, as well.  This invalidates the BUGS section of the
contigmalloc(9) manpage.
2004-07-19 06:21:27 +00:00
Alan Cox
4a5be3f70a Add partial pmap locking.
Tested by: marcel@
2004-07-19 05:39:49 +00:00
Tim Kientzle
d3ca4b04cb Fix some misspellings, document the TAPE environment
variable and the default tape device.
2004-07-19 05:24:41 +00:00
Mike Silbersack
4ca037c6c8 Add a #error requiring KDB if DDB is specified. (This can probably be
relocated to a better place, if one exists.)
2004-07-19 02:46:34 +00:00
Peter Grehan
8653f72f6e Empty GENERIC.hints file needed by make release.
Noticed by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-07-19 02:08:22 +00:00
Marcel Moolenaar
a2d5bce4ea This file was not used to import gdb. Remove. 2004-07-19 00:20:33 +00:00
Julian Elischer
55d44f79ea When calling scheduler entrypoints for creating new threads and processes,
specify "us" as the thread not the process/ksegrp/kse.
You can always find the others from the thread but the converse is not true.
Theorotically this would lead to runtime being allocated to the wrong
entity in some cases though it is not clear how often this actually happenned.
(would only affect threaded processes and would probably be pretty benign,
but it WAS a bug..)

Reviewed by: peter
2004-07-18 23:36:13 +00:00
Pawel Jakub Dawidek
ece2d9891e Now we have NO_ADAPTIVE_MUTEXES option, so use it here too.
Missed by:	scottl
2004-07-18 23:27:14 +00:00