Partially revert r38465 and move the code from system_time() into a new
real_time_clock_usecs() function. The system_time() implementation was correct
in relying on of_milliseconds(), as pointed out by Axel. Add the correct
function for the desired functionality.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38481 a95241bf-73f2-0310-859d-f6bbb57e9c96
Fix coding style issues and bump copyright (although there's not much anyway).
No functional changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38480 a95241bf-73f2-0310-859d-f6bbb57e9c96
Modelled after UDP, add limited TCP support to the boot net stack. The socket
works by queuing received packets as well as sent packets that have not yet
been ACK'ed. Some known issues are documented, especially there's only limited
congestion control. I.e., we send immediately and in unlimited quantity, thus
its use should be restricted to local networks, and due to a fixed window size
there is potential for our socket being overrun with data packets before they
are read. Some corner cases like wrapping sequence numbers may cause a timeout.
The TCP implementation is based on Andrew S. Tanenbaum's "Computer Networks",
4th ed., as well as lecture notes from Prof. W. Effelsberg, the relevant RFCs
and Wikipedia. The pseudo-random number Galois LFSR used for the sequence
number was suggested by Endre Varga.
Since the code is unlikely to get much smaller, better merge it now so that
subsequent changes get easier to review. No platform actively uses TCP sockets
yet, and the receiving code has been reviewed for endianness issues and should
terminate okay after verifying the checksum if no sockets are open.
Based on a version tested with custom code (#5240) as well as with iSCSI.
Compile-tested boot_loader_openfirmware, pxehaiku-loader with gcc4 and
haiku_loader with gcc2. Closes ticket #5240.
Changes from #5240 proposed patch:
* Various bug fixes related to queuing, some memory leaks fixed.
* Never bump the sequence number when dequeuing a packet. It's done afterwards.
* Don't bump the sequence number again when resending the queue or ACK'ing.
* Aggressively ACK while waiting for packets.
* Don't queue sent ACK-only packets.
* More trace output, esp. for queue inspection.
* Adapted use of TCP header flags to r38434.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38472 a95241bf-73f2-0310-859d-f6bbb57e9c96
system_time() was based on of_milliseconds(), which returns the number of
milliseconds since power-on. This would produce very similar or identical
results for subsequent boots due to limited clock resolution; therefore it
was unsuited as PRNG seed, e.g., for TCP ports.
Try to inquire the RTC device node with get-time to return an improved time
value, if possible.
Closes ticket #6061.
Changes from proposed patch:
* Obtain the RTC handle once and reuse it for each inquiry.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38465 a95241bf-73f2-0310-859d-f6bbb57e9c96
sometimes not.
* This fixes CIDs 1755-1756, and 1505-1506.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38460 a95241bf-73f2-0310-859d-f6bbb57e9c96
make much sense to wake up any waiters either in this case.
* Fixed doubled semaphore deletion.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38418 a95241bf-73f2-0310-859d-f6bbb57e9c96
discovered by Coverity for some reason): commands without arguments would
overwrite memory (in this case the sConsole::arg_count only, though).
* Travis's copyright was missing in blue_screen.cpp.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38409 a95241bf-73f2-0310-859d-f6bbb57e9c96
Read the EDID from OF and pass it on to the kernel.
Last part of ticket #6105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38307 a95241bf-73f2-0310-859d-f6bbb57e9c96
Use the OF "screen" device alias to query frame buffer properties. Postpone
the opening of the device as far as possible as it erases the screen output.
Initialize the kernel arguments and hook into generic code to display the
splash screen.
Like on x86, the frame buffer is enabled by default. To disable it, either
press ESC during early boot or, for debugging, make sure in start.cpp that
platform_boot_options() has the BOOT_OPTION_DEBUG_OUTPUT flag set.
Resolves ticket #6105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38306 a95241bf-73f2-0310-859d-f6bbb57e9c96
Avoid writing to stdout if the frame buffer is enabled.
Part of ticket #6105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38305 a95241bf-73f2-0310-859d-f6bbb57e9c96
Introduce a non-blocking function for checking keyboard input, and refactor
existing code to share the escape key translations. The comment that key-up and
key-down result in a zero char is confirmed to apply.
If the space bar is pressed, enter the boot menu. If the escape key is pressed,
disable the frame buffer and keep showing the usual debug output. Apparently
the key press must come after console/keyboard initialization but before the
"Welcome to the Haiku bootloader!" line.
Closes ticket #6140.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38304 a95241bf-73f2-0310-859d-f6bbb57e9c96
The frame buffer will need more generic sources than just the text menu.
Adapted from bios_ia32 platform.
Part of ticket #6105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38301 a95241bf-73f2-0310-859d-f6bbb57e9c96
Debug output calls OpenFirmware methods writing text into the frame buffer.
Depending on the screen mode this leads to garbled display or parts of the
screen overwritten, so mute the output during frame buffer use for now.
A better solution would be to redirect the output elsewhere (e.g., #6168),
so that ConsoleHandle::WriteAt() is not called for the problematic handle
in the first place. That does not work inside the kernel yet.
Part of ticket #6105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38300 a95241bf-73f2-0310-859d-f6bbb57e9c96
Initialize the frame buffer as not enabled. Add checks for this condition
and for the debug boot option to the video functions.
Code is adapted from bios_ia32 platform. Part of ticket #6105.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38299 a95241bf-73f2-0310-859d-f6bbb57e9c96
This is a leftover from the r25913 build fix. It used to be an out parameter.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38294 a95241bf-73f2-0310-859d-f6bbb57e9c96
This remedies "Current thread pointer [...] is an address we can't read from."
on entering KDL. Closes ticket #6163.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38293 a95241bf-73f2-0310-859d-f6bbb57e9c96
Let setting the memory type to B_MTR_UC succeed.
Add initial support for those memory types in the translation map,
pointed out by Ingo in ticket #5193.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38292 a95241bf-73f2-0310-859d-f6bbb57e9c96
Revert r36886 and fix compilation of insert_virtual_range_to_keep().
The use of void* vs. addr_t matches the surrounding boot loader code
but should probably be revised in favour of addr_t.
create_area() in the kernel wrongly assumed a RAM-backed address range,
which was destined to fail since ranges below the kernel address space
were ignored anyway. Use vm_map_physical_memory() instead.
This fixes a hang once the frame buffer and other resources used by OF
get unmapped. Closes ticket #5193 again.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38291 a95241bf-73f2-0310-859d-f6bbb57e9c96
There are TODO's in here, because the ACPI module needs restructuring and which I will take care of.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38289 a95241bf-73f2-0310-859d-f6bbb57e9c96
which has rather desastrous consequences - thanks to Stippi for the heads
up :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38242 a95241bf-73f2-0310-859d-f6bbb57e9c96
discard mechanism eventually causing the conflicts between the file cache
and the block cache it intended to fix.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38232 a95241bf-73f2-0310-859d-f6bbb57e9c96
this (and other checks) should not be necessary in the first place.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38229 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Also fixed a leak of the same object in team_create_thread_start() I spotted
while looking into it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38227 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made an enum out of the mailbox type.
* Rearranged some code to get rid of CID 1328 which was not a bug, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38209 a95241bf-73f2-0310-859d-f6bbb57e9c96
(this might also have derefenced a potentially freed vnode).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38196 a95241bf-73f2-0310-859d-f6bbb57e9c96
* _kern_[sg]et_timezone() now accepts/passes out the timezone name, too
* adjust Time preflet and clockconfig to pass the timezone name into the kernel
when calling _kern_set_timezone()
* ajust implementation of tzset() to fetch the timezone name from the kernel
via _kern_get_timezone() instead of reading 'libroot_timezone_info'
* the Time preflet no longer writes 'libroot_timezone_info'
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38164 a95241bf-73f2-0310-859d-f6bbb57e9c96
* no longer keep a separate time-backend, since the implementation needs to
access (data of) the locale backend anyway
* moved more stuff from localtime_fading_out.c to localtime.cpp
* added respective tests to locale_test
* added two more tests copied from glibc, test_time.c and tst-mktime.c
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38162 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added a TODO that thread_yield() doesn't like to be called from the idle
thread.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38109 a95241bf-73f2-0310-859d-f6bbb57e9c96
mostly bin tools and mail kit. The use of __USE_GNU macro is needed for instance when the expected regex implementation is the GNU one.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38031 a95241bf-73f2-0310-859d-f6bbb57e9c96
of localtime(), gmtime() and mktime()
* implemented tzset() to read the required info from libroot_timezone_info
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37935 a95241bf-73f2-0310-859d-f6bbb57e9c96
* made FAT add-on use get_timezone_offset(), this time correctly adjusted for
the difference in units (minutes/seconds)
This makes the times in our FAT-fs agree with Linux again, at least :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37905 a95241bf-73f2-0310-859d-f6bbb57e9c96
turned out it's pretty much broken. Not only did it potentially leak memory,
it would also potentially replace the original data with a NULL pointer,
making the current transaction non revertable. The code should now be much
clearer. This fixes bug #6378.
* Changed a few "if (... != NULL)" into ASSERTs, since the code should bail out
earlier in these cases already.
* Added a TODO comment to cache_start_sub_transaction() about its broken discard
handling. This can cause FS corruptions in case the parent transaction is ever
going to be aborted (which shouldn't happen in real life, though).
* Added a bit more and better comments.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37899 a95241bf-73f2-0310-859d-f6bbb57e9c96
* dropped DaylightSavingTime from real_time_clock code in kernel, it was
never really being used for what it meant (and just being referred to by
gettimeofday(), which put a different meaning to it
* adjusted the syscalls get_timezone() & set_timezone() as well as their callers
accordingly
* got rid of get_rtc_info() and rtc_info struct in kernel, as it was only
being referred to by the FAT add-on and that one (like gettimeofday()) put a
different meaning to tz_minuteswest. Added a comment to FAT's util.c
showing a possible solution, should the hardcoded GMT timezone pose a problem.
* fixed declaration of gettimeofday() to match POSIX base specs, issue 7
* changed implementation of gettimeofday() to not bother trying to fill struct
timezone - it was using wrong values before, anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37888 a95241bf-73f2-0310-859d-f6bbb57e9c96
once the file descriptor is closed.
* Reinstantiated the FIFO functionality as long there are no writers yet as
explained by Ingo.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37883 a95241bf-73f2-0310-859d-f6bbb57e9c96
* renamed syscalls _kern_[gs]et_tzfilename
to _kern_[gs]et_real_time_clock_is_gmt, as the filename part is no longer
relevant (and the two corresponding parameters were removed)
* C++-ified and reworked clockconfig to use the info from 'Time settings'
to setup the timezone info during boot
* removed invocation of _kern_get_tzfilename() from tzset(), as the syscall
no longer exists and tzset() is currently broken anyway
* adjusted the Time preflet to use the renamed syscall when getting/setting
the RTC info
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37881 a95241bf-73f2-0310-859d-f6bbb57e9c96
is closed; their ReadRequest will now be notified with B_FILE_ERROR.
* This is a better fix for #5947, though note that I left the changes in
Inode::ReadDataFromBuffer() in place, as I think this is what POSIX requires.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37860 a95241bf-73f2-0310-859d-f6bbb57e9c96
fixes bug #5947, IOW BePDF should now close fine again :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37836 a95241bf-73f2-0310-859d-f6bbb57e9c96
interface - this caused quite a number of changes.
* Network interfaces, and its addresses are now reference counted (not yet
complete, though, InterfaceAddresses need to hold references to their
interface as well).
* There are two known regressions of this commit that I will fix later:
- you cannot remove interfaces anymore
- IPv4 multicast was broken anyway, but now it's disabled, too.
* Moved a device_interfaces.cpp|h out of interfaces.cpp.
* The datalink layer chain is now instantiated per domain per interface,
not just per interface anymore.
* When a buffer reaches the network layer, it has no known interface yet, ie.
the ipv4|6|whatever modules need to set this manually.
* Added more debug output, and some new debugger commands, the control option
is now printed in clear text.
* Added hash_address() function to the address modules. Added "const" to
set_to_defaults() where needed.
* Fixed net_buffer's restore header functions offset use as reported by Atis.
* Improved buffer dump output, use the domain module to print the address if
available.
* Moved net_buffer::type into the union, as it's not needed by the upper layers
anymore.
* Moved IPv6 specific code from {add|remove}_default_route() to where it
belongs, but disabled it for the time being.
* Completely discarded useless ipv4_datagram module.
* Added ping6 to the build.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37794 a95241bf-73f2-0310-859d-f6bbb57e9c96
'--distro-compatibility official' will result in the HAIKU logo being
displayed. When 'default' or 'compatible', only the icons will display. Due to
issues with generate_boot_screen, the "development" logo is not utilized.
Relates to #6183 and #6255
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37740 a95241bf-73f2-0310-859d-f6bbb57e9c96
* reset errno to 0 if it has been set during execution of any ICU method
(which doesn't set errno itself, but may invoke system functions that do)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37736 a95241bf-73f2-0310-859d-f6bbb57e9c96
* support invocation of ctype/wctype macros with EOF/WEOF (-1), which would
access more or less random memory before - I don't know why this worked
more or less reliably for the POSIX locale, but it didn't for any other
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37730 a95241bf-73f2-0310-859d-f6bbb57e9c96
* uncommented fwscanf() in wchar.h to make it available
* imported wcsftime() from FreeBSD-8 (which just wraps strftime()), so that we
not only declare it, but provide an implementation, too
As a result, the next build of gcc4 should be able to detect full support for wchar_t and in turn activate wchar_t-based template types (like std::wstring).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37720 a95241bf-73f2-0310-859d-f6bbb57e9c96
Assert that the meta chunk the given address lies in is actually in use.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37703 a95241bf-73f2-0310-859d-f6bbb57e9c96
area. The first page is not mapped, so someone writing over the bounds of the
previous area will be axed immediately.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37701 a95241bf-73f2-0310-859d-f6bbb57e9c96
now.
* PageWriterRun::Go(): Returns the number of pages that could not be written.
* page_writer()/next_modified_page():
- Don't use a marker page anymore. A visited page is requeued at the tail.
This also makes the functions that schedule pages work a bit better (they
queue the pages at the head of the queue).
- Have an eye on pages that are busy or failed to write. If we ran through
the whole modified queue without writing a single page, sleep for a short
time. This mitigates the busyness the page writer falls into when there
are enough modified pages to make it run all the time but none that can be
written successfully.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37681 a95241bf-73f2-0310-859d-f6bbb57e9c96
I haven't tested it on the problematic machine yet, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37635 a95241bf-73f2-0310-859d-f6bbb57e9c96
* After an unsuccessful find_port() wait a while before trying again.
find_port() is quite expensive and particularly during the boot process it
was called quite busily. Essentially a find_port() per written syslog
message was performed.
* Added TODOs regarding using a semaphore and using find_port().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37571 a95241bf-73f2-0310-859d-f6bbb57e9c96
incrementing the cache color cycle. Using the fixed value (8) would
potentially misalign the object again.
* Don't use CACHE_ALIGN_ON_SIZE for object caches any longer -- we have the
alignment parameter anyway (the flag is still used for the MemoryManager,
though).
* ObjectCache::InitSlab(): Slab coloring *was* done when CACHE_ALIGN_ON_SIZE
was given, i.e. exactly the wrong way around. Also the cache_color_cycle
computation was weird -- color 0 was used twice in a row.
* The "slabs" and "slab_cache" KDL commands also print the alignment, now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37534 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Align the allocated objects to 16 byte. This is required by the x86
arch_thread structure. Haiku only didn't crash and burn since the until
recently used heap allocator apparently aligned the structures to 16 byte
anyway and the now used slab allocator has a bug preventing slab coloring
for that object size.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37532 a95241bf-73f2-0310-859d-f6bbb57e9c96
the thread's death notifications. The fixes issues where other threads depend
on objects on its stack (particularly relevant for the main thread). Fixes
#6315.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37509 a95241bf-73f2-0310-859d-f6bbb57e9c96
ObjectCache::ReturnObjectToSlab(): Check the returned object pointer for
obvious invalidity (out of bounds or misalignment).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37508 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_page::Init().
* Made vm_page::wired_count private and added accessor methods.
* Added VMCache::fWiredPagesCount (the number of wired pages the cache
contains) and accessor methods.
* Made more use of vm_page::IsMapped().
* vm_copy_on_write_area(): Added vm_page_reservation* parameter that can be
used to request a special handling for wired pages. If given the wired pages
are replaced by copies and the original pages are moved to the upper cache.
* vm_copy_area():
- We don't need to do any wired ranges handling, if the source area is a
B_SHARED_AREA, since we don't touch the area's mappings in this case.
- We no longer wait for wired ranges of the concerned areas to disappear.
Instead we use the new vm_copy_on_write_area() feature and just let it
copy the wired pages. This fixes#6288, an issue introduced with the use
of user mutexes in libroot: When executing multiple concurrent fork()s all
but the first one would wait on the fork mutex, which (being a user mutex)
would wire a page that the vm_copy_area() of the first fork() would wait
for.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37460 a95241bf-73f2-0310-859d-f6bbb57e9c96
with only a single readable/writable/executable text+data segment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37415 a95241bf-73f2-0310-859d-f6bbb57e9c96
after each chunk allocation/deallocation.
* The commands that dump chunks also verify, whether chunks that look free
are in the free list.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37360 a95241bf-73f2-0310-859d-f6bbb57e9c96
Suggested by Ingo in ticket #6139. This shortens the stack trace and makes it
independent of whether called implicitly on KDL entry or manually from the
kernel debugger prompt.
For a kernel panic, "panic" is now the top-most frame printed.
Closes ticket #6160.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37282 a95241bf-73f2-0310-859d-f6bbb57e9c96
Suggested by Ingo in ticket #6139. Code is adapted from x86.
Note that on ppc64 GPR1 needs to be 64-bit, thus the choice of addr_t.
Resolves part of ticket #6160.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37281 a95241bf-73f2-0310-859d-f6bbb57e9c96
On QEMU's emulation of a PowerPC Old World Mac (g3beige), determine_machine()
returns without setting the machine type to unknown, since the root device
does not provide a device_type property.
Move the variable assignment up a few lines to remedy this.
Closes ticket #6123.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37280 a95241bf-73f2-0310-859d-f6bbb57e9c96
The only user of of_milliseconds(), the boot loader's system_time(),
checks for an error that would never be signalled since the zero-initialized
number of milliseconds would always be returned.
Return OF_FAILED instead to allow explicit error handling in that case.
While this is a behavioral change, it is not yet a functional change,
for system_time()'s implementation translates OF_FAILED back to zero currently.
Resolves part of ticket #6061.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37279 a95241bf-73f2-0310-859d-f6bbb57e9c96
In r33670 the svn:eol-style property was dropped, which took care of
locally converting the line endings to the user's native style.
While most files use Unix-style LF line endings, some files have
Windows-style CR LF line endings.
Assure that the following r37262 directories use Unix-style line endings:
src/system/boot/
src/system/boot/arch/
src/system/boot/arch/ppc/
src/system/boot/loader/
src/system/boot/loader/net/
src/system/boot/platform/
src/system/boot/platform/openfirmware/
src/system/boot/platform/openfirmware/arch/
src/system/boot/platform/openfirmware/arch/ppc/
src/system/kernel/
src/system/kernel/arch/
src/system/kernel/arch/ppc/
src/system/kernel/platform/
src/system/kernel/platform/openfirmware/
headers/private/kernel/
headers/private/kernel/arch/
headers/private/kernel/arch/ppc/
headers/private/kernel/platform/
headers/private/kernel/platform/openfirmware/
headers/private/kernel/boot/
headers/private/kernel/boot/net/
headers/private/kernel/boot/platform/
headers/private/kernel/boot/platform/openfirmware/
This avoids patches containing irrelevant lines unintentionally converted.
No functional changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37265 a95241bf-73f2-0310-859d-f6bbb57e9c96
headers and respectively added includes in source files.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37259 a95241bf-73f2-0310-859d-f6bbb57e9c96
them compile still.
* Some cleanup in ARM's start2.cpp.
* m68k stuff is still missing, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37249 a95241bf-73f2-0310-859d-f6bbb57e9c96
the constraint can be expressed more precisely. ATM B_32_BIT_FULL_LOCK is
implemented as B_32_BIT_CONTIGUOUS when B_HAIKU_PHYSICAL_BITS > 32, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37226 a95241bf-73f2-0310-859d-f6bbb57e9c96
item) and kernel settings option "4gb_memory_limit". Enabling either one
causes the memory beyond 4 GB to be ignored.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37225 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Fixed check: If a low *or* high address restriction is given, we need to
force B_CONTIGUOUS wiring.
* Optimization: Contiguous single-page allocation can be allocated as
full-lock, if the no low/high address restrictions are given.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37203 a95241bf-73f2-0310-859d-f6bbb57e9c96
problem with potential integer overflow at the end of the address space.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37190 a95241bf-73f2-0310-859d-f6bbb57e9c96
ClearAccessedAndModified() implementations into helper methods PageUnmapped()
and UnaccessedPageUnmapped() in the base class.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37187 a95241bf-73f2-0310-859d-f6bbb57e9c96
"note" low resource state. Not doing so could result in a very high limit for
the number of empty slabs, which wouldn't change until reaching the "warning"
state.
Fixes#5816.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37171 a95241bf-73f2-0310-859d-f6bbb57e9c96
block_cache::unused_blocks.
* block_cache::Allocate(): No longer removes unused blocks when in a low
resource state. That just removed too many blocks too quickly, when the
cache was actively used for writing, seriously affecting performance.
* block_cache::_LowMemoryHandler(): Compute the number of unused blocks to
remove depending on the total unused block number. This way we cull huge
block caches with lots of old blocks much quicker.
Treats part of #5816.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37170 a95241bf-73f2-0310-859d-f6bbb57e9c96
Together with vnode associated structures like file cache, VMCache, and file
system specific structures the impact on heap usage (and thus address space)
is considerable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37169 a95241bf-73f2-0310-859d-f6bbb57e9c96
value for note remains the same, the others are significantly higher, now.
* compute_state(): Log low resource state changes.
* "low_resource" command: Also print the current resource values.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37168 a95241bf-73f2-0310-859d-f6bbb57e9c96
