As with putenv() both value and name can be modified afterwise in our
back, multiple occurence of the same name is a possibility.
Fix#6706.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38904 a95241bf-73f2-0310-859d-f6bbb57e9c96
bounds index - the system would overwrite memory then and eventually KDL.
This could best be reproduced with overlays after a while.
* Added a TODO comment that explains why free_cached_pages() might fail even
though the page is actually free now.
* Added an explanation of how the sFreePageQueuesLock is to be used, thanks to
Ingo for explaining it to me in the first place :-)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38895 a95241bf-73f2-0310-859d-f6bbb57e9c96
The official release one stay the well-known one, just renamed to show it's trademarked images.
Fixed#6183.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38891 a95241bf-73f2-0310-859d-f6bbb57e9c96
* protect against invocations of ctype-macros/-functions with negative
character indices by mirroring the corresponding values at negative
array indices (the legal access range of __ctype_b is now [-128..255])
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38708 a95241bf-73f2-0310-859d-f6bbb57e9c96
* avoid trying to overwrite values of a constant structure when
updating the numeric locale data values used by glibc
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38623 a95241bf-73f2-0310-859d-f6bbb57e9c96
the POSIX specs are a bit vague on this (to say the least)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38606 a95241bf-73f2-0310-859d-f6bbb57e9c96
This might help with ACPI shutdown issues, if not this change can be reverted. Not verified as it works on all my machines even without this.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38585 a95241bf-73f2-0310-859d-f6bbb57e9c96
If no Haiku remote disk server is found, try an iSCSI discovery session on
the TFTP server, using the IP address from the boot command or OF options.
All available IPv4 targets are considered, Target Portal Groups are ignored.
RFC 4173 suggests a mechanism that avoids a discovery session by using DHCP;
that requires a compatibly configured DHCP server though and we wouldn't have
access to such data currently anyway. iSCSI is currently used as fallback,
and when it doesn't succeed it falls back to the menu as before.
Resolves ticket #5319.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38537 a95241bf-73f2-0310-859d-f6bbb57e9c96
Add support for both discovery and regular iSCSI sessions. Command and status
sequence numbers do differentiate between session and connection but only
one connection per session is currently supported.
Code is Big Endian for now, so compile it for ppc only.
Based on RFC 3720 ff. Tested against OpenSolaris 2009.06.
Resolves most of ticket #5319.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38536 a95241bf-73f2-0310-859d-f6bbb57e9c96
Don't enqueue a packet whose sequence number matches the first one in queue
or is between the next and the acknowledged on. This would lead to packet
duplication in the queue and leftovers after dequeuing.
Optimize calculation of acknowledgement number for out-of-order reception.
If a single missing packet arrived, this could have resulted in a timeout
depending on the window size.
In case the connection is closed, do dequeue remaining packets. This would
have caused a read error after a unidirectional FIN.
Prepare a dynamic window size calculation.
Do checksum calculation before attempting to trace packet contents. I have
seen a few and couldn't spot an error in the checksum calculation.
More fine-grained control over trace output.
Trace the Maximum Segment Size option if present; break after End of Options.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38535 a95241bf-73f2-0310-859d-f6bbb57e9c96
Pass the desired window size from the socket to the service.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38530 a95241bf-73f2-0310-859d-f6bbb57e9c96
In some error conditions the packet would have been leaked.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38503 a95241bf-73f2-0310-859d-f6bbb57e9c96
Initialize the PRNG seed for the sequence number with real_time_clock_usecs()
rather than system_time(). The remaining uses of system_time() for timeout
calculation match UDP.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38482 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
vm_available_not_needed_memory() version that can be called from within the
kernel debugger.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37167 a95241bf-73f2-0310-859d-f6bbb57e9c96
space (missing elses). The state would never get higher than "note". There
still seems to be an issue (probably vm_kernel_address_space_left() not
returning the correct value), since even at 2021 MB (as reported by "aspaces")
the state is still only "note", while the heap grower is not able to allocate
heap areas anymore.
* "low_resource" command: The address space flag was not printed for hooks.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37140 a95241bf-73f2-0310-859d-f6bbb57e9c96
used e.g. by the slab allocator. The interesting part is the address space
usage anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37139 a95241bf-73f2-0310-859d-f6bbb57e9c96
kernel private.
* Moved dumping code from dump_cache() to new VMCache::Dump().
* Override VMCache::Dump() in VMVnodeCache to also print the vnode.
* Removed no longer needed VMCache::GetLock().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37138 a95241bf-73f2-0310-859d-f6bbb57e9c96
anymore as that truncates physical addresses when PAE is enabled.
Now, if a 4 GB physical address limit is forced in DMAResource, the system
continues to work fine when the physical memory > 4 GB is used. Otherwise it
hangs or crashes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37134 a95241bf-73f2-0310-859d-f6bbb57e9c96
restrictions for virtual/physical addresses.
* vm_page_allocate_page_run():
- Fixed conversion of base/limit to array indexes. sPhysicalPageOffset was not
taken into account.
- Takes a physical_address_restrictions instead of base/limit and also
supports alignment and boundary restrictions, now.
* map_backing_store(), VM[User,Kernel]AddressSpace::InsertArea()/
ReserveAddressRange() take a virtual_address_restrictions parameter, now. They
also support an alignment independent from the range size.
* create_area_etc(), vm_create_anonymous_area(): Take
{virtual,physical}_address_restrictions parameters, now.
* Removed no longer needed B_PHYSICAL_BASE_ADDRESS.
* DMAResources:
- Fixed potential overflows of uint32 when initializing from device node
attributes.
- Fixed bounce buffer creation TODOs: By using create_area_etc() with the
new restrictions parameters we can directly support physical high address,
boundary, and alignment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37131 a95241bf-73f2-0310-859d-f6bbb57e9c96
which caused the upper 32 bit of the address to be ignored, thus mapping to
the wrong page.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37130 a95241bf-73f2-0310-859d-f6bbb57e9c96
uint64, since that's the width of the page table entry. Was harmless, though,
since the flags are in the lower 32 bits anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37129 a95241bf-73f2-0310-859d-f6bbb57e9c96
in r37117 as well, which was really the main point of introducing it.
Improves #6124 (reported memory lower than installed).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37127 a95241bf-73f2-0310-859d-f6bbb57e9c96
Kernel doesn't use it, and it could be regenerated in the kernel if it did need it.
This also unlocks the apic range the bios can use. Previously the apic ids would have
to fit within 0..MAX_CPUS or it'd reject the cpu. Some boxes (mine in particular)
seem to sparsely populate the apic id so that the range is pretty large.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37108 a95241bf-73f2-0310-859d-f6bbb57e9c96
phys_addr_t. IOW, if PAE is enabled, that memory should be put to use now.
Apparently we report an incorrect amount of total memory (also counting
memory gaps), which also suggests that we need another method to manage the
vm_page structures (currently a huge array with indexes proportional to
physical page addresses, i.e. wasting memory for the gaps).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37107 a95241bf-73f2-0310-859d-f6bbb57e9c96
need a spinlock per CPU; a single variable suffices.
* Extended call_all_cpus[_sync]() to work before smp_wake_up_non_boot_cpus()
(even before smp_init()).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37105 a95241bf-73f2-0310-859d-f6bbb57e9c96
maps. Now we can at least fully boot in qemu with one CPU. A few things
still need to be implemented, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37090 a95241bf-73f2-0310-859d-f6bbb57e9c96
page with a 32 bit physical address (needed for the PDPTs). A small set of
free pages is cached, so the rather expensive vm_page_allocate_page_run() can
be avoided most of the time.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37088 a95241bf-73f2-0310-859d-f6bbb57e9c96
* The 32 bit paging structures inherited from the boot loader are translated
to PAE structures and PAE is enabled.
* Implemented the initialization of the initial PhysicalPageSlotPool, so that
the physical page mapper can be initialized.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37076 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made all helper function operating on paging structures static methods of
X86PagingMethod32Bit.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37064 a95241bf-73f2-0310-859d-f6bbb57e9c96
accessed from anywhere. Added static X86PagingMethod32Bit::Method()
returning it as the subtype pointer -- to be used in the code related to
that method only, of course.
* Made a bunch of static variables non-static members of
X86PagingMethod32Bit and added accessors for them. This makes them
accessible in other source files (allowing for more refactoring) and saves
memory, when we actually have another paging method implementation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37062 a95241bf-73f2-0310-859d-f6bbb57e9c96
was used.
* Renamed X86VMTranslationMap to X86VMTranslationMap32Bit and pulled the paging
method agnostic part into new base class X86VMTranslationMap.
* Moved X86PagingStructures into its own header/source pair.
* Moved pgdir_virt from X86PagingStructures to X86PagingStructures32Bit where
it is actually used.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37055 a95241bf-73f2-0310-859d-f6bbb57e9c96
agnostic:
* Changed return value of X86PhysicalPageMapper::[Interrupt]GetPageTableAt()
from page_table_entry* to void*.
* Made PhysicalPageSlotPool an abstract base class. The paging method provides
an implementation and creates the pools now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37054 a95241bf-73f2-0310-859d-f6bbb57e9c96
Introduced the interface X86PagingMethod which is used by those. ATM
there's one implementing class, X86PagingMethod32Bit.
* Made X86PagingStructures a base class, with one derived class,
X86PagingStructures32Bit.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37050 a95241bf-73f2-0310-859d-f6bbb57e9c96
would be skipped. Concerned non-x86 only, as for x86 the methods are
overridden.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37031 a95241bf-73f2-0310-859d-f6bbb57e9c96
the potential input parameter (virtual address) rather than its address. As
suggested by Andreas Faerber in #6141.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37029 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed i386_context_switch() to x86_context_switch().
* x86_context_switch() no longer sets the page directory.
arch_thread_context_switch() does that explicitly, now. This allows to solve
the TODO by reordering releasing the previous paging structures reference and
setting the new page directory.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37024 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed vm_translation_map_arch_info to X86PagingStructures, and all
members and local variables of that type accordingly.
* arch_thread_context_switch(): Added TODO: The still active paging structures
can indeed be deleted before we stop using them.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37022 a95241bf-73f2-0310-859d-f6bbb57e9c96
That makes the automatic stack traces in case of kernel panics work.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37021 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_translation_map_arch_info to X86VMTranslationMap where they actually
belong.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37014 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_free_unused_boot_loader_range(): Don't free any memory beyond the given
range.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37010 a95241bf-73f2-0310-859d-f6bbb57e9c96
even have to be available in the generic case. See bug #6105, patch 1 & 2.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37007 a95241bf-73f2-0310-859d-f6bbb57e9c96
warnings, but also some oversights from earlier changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37000 a95241bf-73f2-0310-859d-f6bbb57e9c96
that are wide enough for both virtual and physical addresses.
* DMABuffer, IORequest, IOScheduler,... and code using them: Use
generic_io_vec and generic_{addr,size}_t where necessary.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36997 a95241bf-73f2-0310-859d-f6bbb57e9c96
of having the logic be triggered by IOScheduler::SetDeviceCapacity(), as that
one might actually be called more often (for each call to update_capacity(),
ie. each B_GET_GEOMETRY/B_GET_DEVICE_SIZE will trigger it), and there is no
reason to throw away the cache every time (will make a difference during
partition/file system detection).
* In cd_init_device() just call update_capacity() instead of duplicating its
code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36986 a95241bf-73f2-0310-859d-f6bbb57e9c96
map_physical_memory()'s physicalAddress parameter type from void* to
phys_addr_t. This breaks source compatibility, but -- as long as
phys_{addr,size}_t remain 32 bit wide -- keeps binary compatibility with
BeOS.
* Adjusted all code using the affected interfaces (Oh what fun!). Added a few
TODOs in places where the wrong types (e.g. void* for physical addresses
are used). Looks like quite a few drivers aren't 64 bit safe and others
will break with PAE.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36960 a95241bf-73f2-0310-859d-f6bbb57e9c96
address ranges, and a set of support functions working with it.
* Changed the type of the kernel_args physical address range arrays to
phys_addr_range and adjusted the code working with those.
* Removed a bunch of duplicated address range code in the PPC's mmu.cpp.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36947 a95241bf-73f2-0310-859d-f6bbb57e9c96
where appropriate.
* Typedef'ed page_num_t to phys_addr_t and used it in more places in
vm_page.{h,cpp}.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36937 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Don't keep any memory mappings from the OF for the time being. We can't
keep mappings < 2 GB, since those aren't in the kernel address space and
we don't handle memory mapped registers or the like correctly either.
Ticket #5193.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36886 a95241bf-73f2-0310-859d-f6bbb57e9c96
created, and moved the heap's grow and VIP heap initialization to it. Should
fix#5956.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36855 a95241bf-73f2-0310-859d-f6bbb57e9c96
The old mechanism to route an apic id back to a cpu id is faulty, built with the assumption that
the bios will 'pack' the apic ids from 0-num_cpus. In systems that dont do that, the code would
randomly corrupt the bootloader. Fatal in this case.
This quick fix simply rejects all apic ids >= MAX_CPUS (8). No way it would have worked before
if you had a box that started with >= 8 or anything, so it shouldn't regress any existing system.
Better solution is to allow any apic id to exist (0-255).
On this particular box the ids (from lunix dmesg):
SRAT: PXM 0 -> APIC 0 -> Node 0
SRAT: PXM 1 -> APIC 16 -> Node 1
SRAT: PXM 0 -> APIC 2 -> Node 0
SRAT: PXM 0 -> APIC 4 -> Node 0
SRAT: PXM 0 -> APIC 6 -> Node 0
SRAT: PXM 1 -> APIC 18 -> Node 1
SRAT: PXM 1 -> APIC 20 -> Node 1
SRAT: PXM 1 -> APIC 22 -> Node 1
SRAT: PXM 0 -> APIC 1 -> Node 0
SRAT: PXM 0 -> APIC 3 -> Node 0
SRAT: PXM 0 -> APIC 5 -> Node 0
SRAT: PXM 0 -> APIC 7 -> Node 0
SRAT: PXM 1 -> APIC 17 -> Node 1
SRAT: PXM 1 -> APIC 19 -> Node 1
SRAT: PXM 1 -> APIC 21 -> Node 1
SRAT: PXM 1 -> APIC 23 -> Node 1
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36836 a95241bf-73f2-0310-859d-f6bbb57e9c96
platforms that are ignorant of the debug syslog feature.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36748 a95241bf-73f2-0310-859d-f6bbb57e9c96
map_backing_store() doesn't commit memory when this flag is given.
* Used the new flag vm_copy_area(): We no longer commit memory for read-only
areas. This prevents read-only mapped files from suddenly requiring memory
after fork(). Might improve the situation on machines with very little RAM
a bit.
We should probably mark writable copies over-committing, since the usual
case is fork() + exec() where the child normally doesn't need more than a
few pages until calling exec(). That would significantly reduce the memory
requirement for jamming the Haiku tree.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36651 a95241bf-73f2-0310-859d-f6bbb57e9c96
idle_scan_active_pages() cannot satisfy this assertion anymore. Added TODO
for a better fix which can wait until after the release.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36649 a95241bf-73f2-0310-859d-f6bbb57e9c96
array at least work with the part intersecting with the array. Log those
quasi error cases.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36633 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Now it checks whether the given physical range exists at all.
* Not only check whether any range of the given size is free, but also check
whether the given range is free.
* B_BAD_VALUE is not a particularly good return value for a function supposed
to return a bool
Fixes#5911. With only 64 MB RAM the usual debug syslog buffer location may
be outside the actually existing physical memory.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36632 a95241bf-73f2-0310-859d-f6bbb57e9c96
CREATE_AREA_DONT_WAIT flag; waiting at this point is not allowed.
* I hope I found all occurences, but there might be some areas left (note,
only those that don't use B_ALREADY_WIRED are problematic).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36624 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Separated the other stuff previously done in debug_init_post_vm() to the new
debug_init_post_settings().
* Removed superfluous status_t return codes - they are ignored, anyway, and if
there really is a show stopper in the init process, panicking would be the
thing one should do.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36623 a95241bf-73f2-0310-859d-f6bbb57e9c96
Since we also force uncacheability via the PTEs, it is no longer necessary to
use MTRRs for uncacheable ranges. It is recommended, which is why we still do
it, if possible, but when we run out of MTRRs, the algorithm ignores
uncacheable ranges now -- iteratively it increases the minimum size of ranges
to drop until the available MTRRs suffice.
Should fix#5703 and #5865.
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memory. This avoids implementation defined behavior on Pentium Pro/II when
intersecting with an write-combining or write-protected MTRR range.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36589 a95241bf-73f2-0310-859d-f6bbb57e9c96
PAT support (i.e. uncacheable, write-through, and write-back). Has pretty
much no effect ATM, as the MTRRs restrict the types to what is actually
requested.
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implemented for any architecture yet.
* vm_set_area_memory_type(): Call VMTranslationMap::ProtectArea() to change the
memory type for the already mapped pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36574 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Don't set the VMArea's memory type in arch_vm_set_memory_type(), but let the
callers do that.
* vm_set_area_memory_type(): Does nothing, if the memory type doesn't change.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36573 a95241bf-73f2-0310-859d-f6bbb57e9c96
of consistency.
* Moved the B_OVERCOMMITTING_AREA flag from B_KERNEL_AREA_FLAGS to
B_USER_AREA_FLAGS, since we really allow it to be passed from userland.
* Most VM syscalls check the provided protection against B_USER_AREA_FLAGS
instead of B_USER_PROTECTION, now. This way they allow for
B_OVERCOMMITTING_AREA as well.
* _user_map_file(), _user_set_memory_protection(): Check the protection like
the other syscalls do and use fix_protection() instead of doing that
manually.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36572 a95241bf-73f2-0310-859d-f6bbb57e9c96
continuing to run. This must not happen since the thread is the boot CPU's
idle thread performing the early kernel initialization (before the scheduler
is started).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36560 a95241bf-73f2-0310-859d-f6bbb57e9c96
fixes the problem that the CPU initiating the call could make the next call
and reset sCpuRendezvous2 before the other CPUs have returned from their
smp_cpu_rendezvous(). Probably virtually impossible on real hardware, but I
could almost reliably reproduce it with qemu -smp 2 (would hang the late boot
process without ability to enter KDL).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36559 a95241bf-73f2-0310-859d-f6bbb57e9c96
boot CPU wait until all other CPUs are ready to wait. This solves a
theoretical problem in main(): The boot CPU could run fully through the early
initialization and reset sCpuRendezvous2 before the other CPUs left
smp_cpu_rendezvous(). It's very unlikely on real hardware that the non-boot
CPUs are so much slower, but it might be a concern in emulation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36558 a95241bf-73f2-0310-859d-f6bbb57e9c96
kernel from committing memory for all read-only segments until we're done
relocating. This allows Haiku to boot on machines with less RAM and swap
disabled. At least in qemu I could boot with 100 MB and start WebPositive.
Probably fixed#5822.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36552 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Commit(): Unreserve memory when asked to shrink the commitment.
* Fault(): The whole logic is flawed, since this is always called by
vm_soft_fault(), even, if the page is finally mapped from a lower cache.
Now we do at least limit our commitment to (page_count + 1) * B_PAGE_SIZE
instead of always reserving memory for another page.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36551 a95241bf-73f2-0310-859d-f6bbb57e9c96
maps. The new cache will be created in over-committing mode.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36550 a95241bf-73f2-0310-859d-f6bbb57e9c96
scheduler. This avoids the need to use the send_signal_etc() work-around for
resume_thread() during the early kernel initialization. Might fix#5851.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36530 a95241bf-73f2-0310-859d-f6bbb57e9c96
supporting ID array (just that it only contains one entry).
* Fixed missing malloc() result check in embedded_controller_init_driver().
* Style fixes.
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already initialized in syslog_init(), if the debug syslog feature is enabled.
Since the area would never be created, the pointer becomes invalid, however,
and could cause a double fault on entering KDL.
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precondition for calling the function it read/write accessed the fAreaHint
attribute in a non-atomic manner. I.e. if executed concurrently by two
threads of the same team one could return the wrong area. The most likely
problem could be caused in vm_soft_fault(), leading to pages being added to
the wrong caches.
The bug itself is inherited from NewOS, but is triggered way more likely
since the page daemon unmaps inactive pages (r35485). Probably fixes#5413.
Might also fix the sporadically occurring crashes/asserts in the hoard
allocator -- at least inactive pages being replaced by zeroed ones would be
an excellent explanation.
[Thanks to Matt for providing remote debug access to his machine.]
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36523 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_page_schedule_write_page_range() to prevent more memory pressure.
* While it seems to help a bit, it doesn't solve the problem of bug #5777.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36519 a95241bf-73f2-0310-859d-f6bbb57e9c96
it is non-NULL first.
* syslog_init_post_vm(): Make sure the area for the debug syslog could actually
be created and fail otherwise.
* syslog_init_post_threads(): Fixed the cleanup on error. In case of a debug
syslog we need to delete the respective area instead of free()ing the
memory.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36497 a95241bf-73f2-0310-859d-f6bbb57e9c96
free respective free and cached pages.
* Removed the unused vm_page_allocate_page_run_no_base().
* vm_page_allocate_page_run() (and allocate_page_run()):
- Use vm_page_reserve_pages() instead of vm_page_try_reserve_pages(), i.e.
wait until the reservation succeeds.
- Now we iterates two times through the pages to find a suitable page run. In
the first iteration it only looks for free/clear pages, in the second
iteration it also considers cached pages. This increases the chance of the
function to succeed, when a lot of caching is going on.
This reduces the amount of memory required to use the IOCache when booting
off the anyboot Live CD to around 160 MB in qemu. It also seems to work with
128 MB, but the syslog indicates that some memory allocations fail, which
is not exactly inspiring confidence.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36489 a95241bf-73f2-0310-859d-f6bbb57e9c96
before locking the address space. That gives us a bit more flexibility in
vm_page_allocate_page_run().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36486 a95241bf-73f2-0310-859d-f6bbb57e9c96
caching (similar to the file cache) instead of contiguous areas. This is
probably a little bit slower, but integrates better with the VM -- the
caching doesn't increase memory pressure and the least recently used pages
will automatically be recycled when needed.
There are still memory allocation issues on machines with little memory. The
USB stack apparently tries to allocate a rather big chunk of contiguous
memory, which fails when all not otherwise bound memory is used for caches,
since the VM functions for allocating contiguous memory consider only free
pages ATM.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36458 a95241bf-73f2-0310-859d-f6bbb57e9c96
as a drop-in replacement for IOScheduler, processing IORequests synchronously
in FIFO order. It stores cache lines of user-defined size. Currently for each
cache line an area of contiguous memory is used, which is not optimal.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36436 a95241bf-73f2-0310-859d-f6bbb57e9c96
loop causes the function to return before setting the _numEntries. The
overflow case is checked at the end of the function anyway, so we can just
break out.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36425 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Removed irq_routing struct from ACPI.h to where it is used. Might be able to use acrestype.h instead of duplication.
* Disable old embedded controller and remove it from image.
* Move embedded controller code to busmanager module.
* Remove (some) code duplication
Should work as before, but is now initialized right after the bus manager. Can probably remove further code duplication.
I hope I've done it correctly, feedback is most welcome.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36420 a95241bf-73f2-0310-859d-f6bbb57e9c96
respective constants.
* compare_image_boot(): Compare volume names case insensitively.
* DiskBootMethod::IsBootDevice(): For BOOT_METHOD_CD only accept devices with
removable media.
* DiskBootMethod::IsBootPartition(): Added special recognition for anyboot
CDs. Since their partition types aren't kPartitionTypeDataSession,
compare_cd_boot() didn't prefer them and it was more or less random whether
it was chosen when other Haiku installations where available. Moreover
selecting the CD in the boot loader menu would cause the kernel not to find
it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36403 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Moved IOScheduler::_IOCallbackWrapper() to IOCallback::WrapperFunction().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36394 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Changed the semantics of VMCache::HasPage(). It was interpreted
inconsistently by the derived classes. Now it returns whether the backing
store can provide the page (via Read()). The default implementation returns
false. VNodeCache::HasPage() only returns true, if the given offset is
within the cache (i.e. file) bounds. This prevents vm_soft_fault() from
adding clean pages to vnode caches on faults beyond the file bounds.
Probably fixes#5473 -- at least mmap_resize_test behaves correctly, now.
* Removed redundant HasPage() and Fault() overrides in VMCache derived
classes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36374 a95241bf-73f2-0310-859d-f6bbb57e9c96
swap space when the cache shrinks. Currently the implementation stil leaks
swap space of busy pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36373 a95241bf-73f2-0310-859d-f6bbb57e9c96
the CPU info, if x86_exit_user_debug_at_kernel_entry() was executed before,
i.e. if the debug exception occurred in userlands. In all other cases we need
to read the current register values. Fixes#5742, a regression introduced in
r35951.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36340 a95241bf-73f2-0310-859d-f6bbb57e9c96
- Reimplemented mutex to use the _kern_mutex*() syscalls.
- The initializer functions cannot fail anymore -- changed their return type
to void.
- Changed the initializer function semantics to not copy the name by default
anymore (as in the kernel). Also added *_etc() versions of them that take an
additional flags.
- Added static initializer macros.
- Made the mutex (and thus recursive_lock) lock functions non-interruptable.
- Got rid of the "lazy" version. They are no longer needed, since the
initialization of the standard types can be done statically and cannot fail.
* Adjusted libroot, runtime loader, and other code using the private libroot
locking primitives to the new semantics.
* pthreads mutexes and condition variables:
- Reimplemented using the _kern_mutex*() syscalls.
- Consistently use POSIX error codes.
- Fixed some not quite POSIX compliant behavior.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36323 a95241bf-73f2-0310-859d-f6bbb57e9c96
* user_mutex_unlock_locked(): Set or clear the locked flag depending on whether
we wake up a waiter.
* _user_mutex_switch_lock(): The syscall cannot be restartable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36319 a95241bf-73f2-0310-859d-f6bbb57e9c96
it failed...).
* Moved IRQ table reading much earlier (before starting to program the I/O
APIC), though it currently fails, possibly because the device manager isn't
up yet, and there is no embedded controller driver.
* The kernel now enables I/O APICs by default, but the boot loader disables
them - you can now enable them using the safe mode menu, but it currently
won't have any (positive) effect.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36293 a95241bf-73f2-0310-859d-f6bbb57e9c96
can safely be used.
* Since using the I/O APIC is disabled by default, I've removed the "return"
that prevented its use when enabled. Let's see if it already does anything.
* Adapted other arch_int.cpp with a bit of cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36290 a95241bf-73f2-0310-859d-f6bbb57e9c96
double/deadlock when we delete heap areas because of other area deletions.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36284 a95241bf-73f2-0310-859d-f6bbb57e9c96
The O_CLOEXEC open mode wasn't actually set in the close-on-exec bitmap causing
all files opened with O_CLOEXEC (like done in the storage kit classes) to still
be inherited. This caused for example to be unable to unmount volumes when
opening apps while Tracker touched some files (i.e. copying some large files)
since these apps would inherit the file descriptor and therefore keep the
volume busy.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36273 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add file descriptor and IO context tracing.
* Some minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36272 a95241bf-73f2-0310-859d-f6bbb57e9c96
via exit() (the calling thread will drop into the debugger instead).
* The DebugServer now uses this flag by default.
* Added TODO comment: the default debugger should already be able to set a flag
like this in order to close a race condition between dropping a thread into
the debugger and setting the flag.
* Cleaned up the debug_server sources a bit.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36265 a95241bf-73f2-0310-859d-f6bbb57e9c96
mapped page.
* debug_{mem,strl}cpy():
- Added "team" parameter for specifying the address space the address are
to be interpreted in.
- When the standard memcpy() (with fault handler) fails, fall back to
vm_debug_copy_page_memory().
* Added debug_is_debugged_team(): Predicate returning true, if the supplied
team_id refers to the same team debug_get_debugged_thread() belongs to.
* Added DebuggedThreadSetter class for scope-based debug_set_debugged_thread().
Made use of it in several debugger functions.
* print_demangled_call() (x86): Fixed unsafe memory access.
Allows KDL stack traces to work correctly again, even if the page daemon has
already unmapped the concerned pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36230 a95241bf-73f2-0310-859d-f6bbb57e9c96
