* Now, killing a team shut properly cause the app_server to close the windows
of that team, too.
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pthread_create 2-1 interface conformance test to pass.
* Also fixed return values to be in the POSIX error range in case we ever switch
them by default.
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ID.
* Accidently, this should also fix bug #4839.
* Optimized _get_next_sem_info() a whole lot by iterating over the team's
semaphore list.
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to the owning team.
* Instead, the team now maintains a list containing the ports it owns.
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* This makes sem_delete_owned_sems() a lot more efficient; before it would need
to scan the entire semaphore table.
* This speeds up the test build of the kernel by another 2 seconds (with
KDEBUG=2) on my laptop.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33743 a95241bf-73f2-0310-859d-f6bbb57e9c96
iterated over all known thread *IDs* with interrupts disabled.
Now it iterates over the team's thread list (going from back to front, since
new threads are added at the front of the singly linked queue).
* Alexandre restarted Tracker quite a lot, and let the shell script run to
reproduce a certain bug - and then wondered why ProcessController would
take several seconds to open its windows until it passed through more than
8 million IDs... :-)
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(hopefully) correct place.
* It seems to be even harder to understand basic locking primitives: when you
think about it, it shouldn't surprise you that conditional variables never
return B_WOULD_BLOCK. This fixes gdb again.
* Added tracing support to the ports subsystem.
* get_port_message() will now resize the port heap if needed (but will also
take timeouts into account while doing so, more or less). The initial port
space is 4MB (as before), the growth rate is the same, and the system wide
limit is arbitrarily set to 64 MB (all swappable). A team limit has been set
to 8 MB, but is not enforced yet. Since ports are using up address space in
the kernel, those seems to be proper limits.
* This also fixes a strange, and rare lockup where the mouse cursor would still
move, but everything else would basically hang, but look perfectly normal from
KDL on the first look. As recently happened on Brecht's laptop, and debugged
by mmlr and me: the cbuf space got used up when lots of windows wanted to
redraw after a workspace switch. The app_server wouldn't answer anymore to
client requests, but thought it would have done so, as LinkSender::Flush()
doesn't care if it got a B_NO_MEMORY (the ports will now block until memory
is available if possible, so that should not be a problem anymore).
* Improved "port" KDL command, it now also prints the messages in the port.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33735 a95241bf-73f2-0310-859d-f6bbb57e9c96
was used this way in the debugger. Doing this later should be harmless,
AFAICT, but Ingo will probably know better.
* Beware, though, the debugger currently does not work anymore.
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* its own heap allocator instead of cbuf - this makes cbuf superfluous, and I
therefore removed it from the kernel. The heap is swappable, so lifts the
kernel's resource usage a bit. In the future, the heap should grow as well;
right now it should be at least as good as before.
* it no longer uses spinlocks, but just mutexes now for better scalability - it
was not usable with interrupts turned off anyway (due to its semaphore usage).
* it no longer uses semaphores, but condition variables.
* Needed to move the port initialization to a later point, as swappable memory
wasn't usable that early.
* All ports test are still passing, hopefully I didn't mess anything up :-)
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the bin sizes ensure that when hitting this case it always allocates multiple
pages. This makes it more flexible for other use cases though.
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* Fixed some minor issues of heap_create_allocator() when it should use the
kernel heap to allocate its heap structure.
* Fixed an off by one error in the max bin check.
* Changed the KDL "heap" command to allow the "stats" for any heap as well.
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fit into the existing area. In that case further reallocs could then assume the
wrong previous size and then not copy enough from the original buffer, leading
to lost bytes at the end of the new buffer.
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* Allow an allocator to be created on the heap to allow for non-locked
allocators to be created.
* Some cleanup.
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read out in the ConditionVariableEntry::WaitStatus(). That way you can notify
with a specific status that can be read out on the other end.
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wait status and therefore would return directly without actually blocking.
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to avoid recurring problems during migration of subversion checkouts
(restored binary files that were garbled by subversions during checkout)
* added appropriate svn:mime-type property for problematic (binary) files
* removed a single (mistyped) svn:mimetype property
* dropped svn:eol-style property for cleanup (they all contained 'native')
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33670 a95241bf-73f2-0310-859d-f6bbb57e9c96
turned on. That should explain Bruno's problems to get debug output from an
accelerant. Thanks to Michael for the hint!
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high contention of the read lock (I experimented with the VM page mapping
lock)), it actually hurt the compile performance pretty obviously.
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makes the reader case a lot less expensive, and should relieve the thread
spinlock contention a bit.
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* Check for overflows in memory allocation. If someone happened to (erroneously)
try to allocate a negative amount of memory we could overflow and crash
because of the sizes getting messed up.
* Review and update the alignment logic which was a bit broken for the huge
allocation case (reaching the area threshold). Also assert the results so
next time this will be easier to spot.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33638 a95241bf-73f2-0310-859d-f6bbb57e9c96
when you enter arch_cpu_shutdown(), so you must not try to load the ACPI
module to reboot. DaaT, that should fix the problem you showed me.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33617 a95241bf-73f2-0310-859d-f6bbb57e9c96
idea to always send SIGKILL to the main thread, though. I'm not really getting
more insight by reading the POSIX specs.
* Anyway, in the mean time, this fixes bug #4784.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33599 a95241bf-73f2-0310-859d-f6bbb57e9c96
broke their placement at the end of the reserved area, which was the main
reason #4778 happened so often (it would have been more hidden else).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33598 a95241bf-73f2-0310-859d-f6bbb57e9c96
space was becoming tight. This actually fixes#4778.
* Fixed overflow problem in find_reserved_area().
* Cleaned up the test app, added license.
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the RESERVED_AVOID_BASE flag of those, and introduced a way to fill them
from the start. This caused #4778.
* Turned IS_VALID_SPOT() macro into an inline function.
* Removed already resolved TODO comment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33581 a95241bf-73f2-0310-859d-f6bbb57e9c96
them (which you previously could use to easily crash/take over Haiku).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33570 a95241bf-73f2-0310-859d-f6bbb57e9c96
Locker.cpp.
* The services are now using recursive_locks, and rw_locks instead.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33548 a95241bf-73f2-0310-859d-f6bbb57e9c96
these interfaces are now available.
* Don't be quite so paranoid by default, the checks that are on by default
should be enough to detect most memory corruptions.
This makes the debug heap way more usable, so much that you can even use it as
your normal everyday heap without noticing much performance impact (it has quite
a bit of additional memory overhead though).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33544 a95241bf-73f2-0310-859d-f6bbb57e9c96
libroot. The mutex is a simple benaphore, the rw_lock is pretty much the same
as the one from libkernelland_emu but uses a mutex per lock instead of emulating
a global thread lock. Also added MutexLocking and RWLock{Read|Write}Locking and
AutoLockers based on them. It's cased with __cplusplus so the locks are also
usable from C. Everything's currently exposed in shared/private/locks.h but I
think we should make these locking primitves public.
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in the free and/or clear queue. This performs better in the case where only few
pages are free/clear but performs worse in the case where there are a lot of
usable pages. It's not used anywhere but it might come in handy one time.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33527 a95241bf-73f2-0310-859d-f6bbb57e9c96
PageWriteTransfer. This makes the transfer accept virtually contiguous pages,
where the offset is contiguous on either end of the current transfer, but where
the pages aren't physically contiguous. It will then add seperate iovecs for
these pages (32 at max right now). This reduces the number of IO requests
generated and allows for optimizations down the IO path (like in the physical to
virtual mapping case for example).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33526 a95241bf-73f2-0310-859d-f6bbb57e9c96
need for the IO -> InternalIO indirection as it is always fed virtual buffers,
which simplifies things a bit.
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is virtual already it just returns the vecs directly, if it is physical it takes
over the task of virtualizing the vecs either using vm_map_physical_memory_vecs,
if there are multiple vecs or more than one page, or falls back to page wise
mapping if mapping fails or is not needed. In the best case, scattered physical
pages are mapped into one linear virtual buffer so that subsystems operating on
virtual memory only get a single vector and can then burst read/write.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33524 a95241bf-73f2-0310-859d-f6bbb57e9c96
takes a list of iovecs describing the physical pages to be mapped. With it one
can map a set of physically disjoint pages into one linear virtual range. This
is a private API right now, but we might want to make it public as
map_physical_memory_vecs alongside map_physical_memory.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33523 a95241bf-73f2-0310-859d-f6bbb57e9c96
are required to be physically contiguos, which should be reworked to put them
into seperate iovecs. Still this manages to combine a great deal of page
writes into larger bursts already. Reduces the amount of IO requests being
scheduled (and greatly benefits media where page wise writes are slow when
they are accessed through a non-IOScheduler path, i.e. USB mass storage until
that is properly implemented).
* Abstracted per page page writing tasks into a PageWriteWrapper class.
* Abstracted per transfer page writing tasks into PageWriteTransfer class which
formerly was the PageWriterCallback.
* Use both classes from the PageWriterRun and from
vm_page_write_modified_page_range to remove code duplication.
* Adjusted synchronous VMAnonymousCache::Write() to cope correctly with larger
iovecs and more than one iovec. It assumed that there was exactly one page per
vector previously.
* Introduced MaxPagesPerWrite() and MaxPagesPerAsyncWrite() to VMCache to allow
a cache to specify restricitions. VMAnonymousCache does restrict the max pages
to 1 for WriteAsync right now as I didn't feel like reworking that one to cope
with non single page writes just yet.
* Pulled out PageWriteTransfer methods for better readability.
* Some typo fixes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33507 a95241bf-73f2-0310-859d-f6bbb57e9c96
reads or writes for old style drivers, map the physical memory at once. Since
USB is pretty much the only one affected and there small reads/writes are
exponentially slower, the performance gain of the burst transfer far outweighs
the additional overhead of the mapping. Still this could be further optimized
and will eventually be superseeded by also providing a physical memory API in
USB. For now it should bring back USB reads to an acceptable level. Writes are
still page wise though because of how writing back memory works in general.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33503 a95241bf-73f2-0310-859d-f6bbb57e9c96
always return the source string length, we can't really prevent an overflow
of the source address.
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when scanning for drivers, as that reverts the standard locking order with
locks like the device manager lock. There is now a dedicated scan_lock for
each directory.
* get_device_name() now locks itself which also adds a missing lock in the
B_GET_PATH_FOR_DEVICE ioctl().
* Minor refactoring; the directory init code was duplicated over several places
in the source file.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33465 a95241bf-73f2-0310-859d-f6bbb57e9c96
address overflows. Apparently at least the x86 string instructions generate
a general protection fault instead of a page fault, and we only use the fault
handler in the latter case (maybe we should change that, too). Fixes#4714.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33436 a95241bf-73f2-0310-859d-f6bbb57e9c96
code is no longer loaded, e.g. when the module has been unloaded or the tracing
buffer was reattached from a previous session.
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* Added new header headers/private/system/disk_device_types.h, which defines
the <DiskDeviceTypes.h> constants as macros and which can be used where the
constants cannot be used. The constants are defined using the macros, so now
there's only one place where the string literals should be specified.
* Use the macros in the partitioning systems. I was too lazy to also adjust the
file systems -- most of them seem to hard-code the string literal yet.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33386 a95241bf-73f2-0310-859d-f6bbb57e9c96
- Fixed vfs_get_vnode_from_fd() return type.
- Added vfs_open_vnode().
- Added a "bool traverseLeafLink" parameter to vfs_get_fs_node_from_path().
It was always resolving symlinks.
* device manager/devfs:
- devfs: get_node_for_path() no longer resolves leaf symlinks. That still
doesn't help with file disk devices, as creating partition wouldn't work
anyway.
- Pulled the module-related implementation part of BaseDevice into new class
AbstractModuleDevice and made all methods of BaseDevice virtual. Small
adjustments to devfs to be happy with the new BaseDevice interface.
- Added BaseDevice subclass FileDevice, which maps the interface to a file's
file descriptor. Still got a few TODOs, but should basically work.
- Use FileDevice for publishing file disk devices in devfs. Now those do
actually work, though there's some BFS trouble with one of the images I
tested.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33385 a95241bf-73f2-0310-859d-f6bbb57e9c96
Remove the 4 cores limit at boot, and fix the allocator to handle 8 cores.
There are still performance problems, but this allows booting with 8 cores.
WARNING: since this changes x86 platform kernel args, you really don't want to update haiku_loader and kernel_x86 separately!
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33349 a95241bf-73f2-0310-859d-f6bbb57e9c96
aren't routed correctly over the 8259, it seems.
- Removed passing the hpet_regs around, since there's a static variable.
- Added lots of debug dprintfs.
- Fixed setting the timer interrupt to edge
- Timer is initialized once.
- Use the timer 0 instead of 2.
- Renamed register definitions to be more readable
- Use 64 bits registers and unions where applicable.
- Other things I don't remember
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33345 a95241bf-73f2-0310-859d-f6bbb57e9c96
Also shortened some defines using "TN" instead of "TIMER". It's also
the same scheme used in the specs
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33334 a95241bf-73f2-0310-859d-f6bbb57e9c96
Lowered its priority of hpet timer so it doesn't get picked up first
(yet)
Changed the debug output to be conditional.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33292 a95241bf-73f2-0310-859d-f6bbb57e9c96
factor to avoid compiler issues.
- Removed some useless and commented debug stuff.
- Now prints also the global HPET configuration.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33291 a95241bf-73f2-0310-859d-f6bbb57e9c96
1000. XenServer boots correctly and in reasonable time,
now (meaning hpet timers work). I guess on real hw the bios doesn't
correctly program the hpet timers, so we'll need a bit more work.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33289 a95241bf-73f2-0310-859d-f6bbb57e9c96
XenServer actually boots (but slow as hell) with hpet timers enabled, real hardware does
not.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33287 a95241bf-73f2-0310-859d-f6bbb57e9c96
if they were not already ordered. Or, to say id differently, it was completely
broken.
Luckily no one noticed....
Also disabled again printing the timers, since it could print not available ones.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33235 a95241bf-73f2-0310-859d-f6bbb57e9c96
checked the existence of the apics.
Moved the code to disable the local apic from arch_timer.c to arch_int.cpp, so
we also avoid installing the interrupt handler for it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33149 a95241bf-73f2-0310-859d-f6bbb57e9c96
Same for the IOAPIC, but commented out the code, since we're not using the
IOAPIC yet.
Also renamed the option to "Disable LOCAL APIC", since it's more correct.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33147 a95241bf-73f2-0310-859d-f6bbb57e9c96
can cause overflows.
* Added a generic IS_VALID_SPOT() macro that checks for overflows and checks if
the area will fit with the given constraints.
* Use the macro to simplify the places where these checks are necessary.
* Use the provided "end" limit instead of the address space end. It currently
doesn't matter but makes more sense.
* Rename newBase variables to alignedBase as that's what they are.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33061 a95241bf-73f2-0310-859d-f6bbb57e9c96
to insert areas so we don't overflow.
* Consequently use the area end (base + size - 1) where appropriate which
prevents overflows in a few places.
* Properly check for reaching the address space end.
* If we've already found a spot we don't need to recheck if we've found one.
* Simplify the B_EXACT_ADDRESS checks down to a simpler single if statement
instead of the four seperate ones.
* Properly calculate the search end for B_EXACT_ADDRESS as well, it's also
base + size - 1.
* Block the full last page now that this actually works without overflowing.
* Some style changes and added spacing.
This should now really fix#2550. Previously the overflow protection didn't
actually work because on allocation we overflowed and completely missed the
protecting area.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33037 a95241bf-73f2-0310-859d-f6bbb57e9c96
and 0xcccccccc (and 64 pages thereafter) in any way will always lead to a crash.
Before it could happen that these ranges were allocated for an area and then
accessing these would not be as evident anymore. Only enabled when the
corresponding paranoid setting is enabled (which it currently is).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33033 a95241bf-73f2-0310-859d-f6bbb57e9c96
of the VM functions handling areas are overflow safe. If an area is created that
spans across the last page many places will run into an integer overflow. This
mostly concerns the area allocation path in find_and_insert_area_slot() and also
vm_create_anonymous_area() where the loop for mapping pages for B_FULL_LOCK
areas overflows and runs more times than it should leading to #2550.
This could be seen as a workaround. The real fix would be to make everything
overflow safe. The thing is that this does also concern the user of the area
which could easily have forgotten to check for overflows as well, so I am a bit
uneasy with handing out areas that could easily lead to such hard to debug
problems. Since this is really an edge case and this single step safes quite a
bit of extra checks I'd actually be OK with keeping it that way.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33032 a95241bf-73f2-0310-859d-f6bbb57e9c96
mapped pages and a non-read and non-write protection to block a certain address
range from being used by anything.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33030 a95241bf-73f2-0310-859d-f6bbb57e9c96
its open_dir() implementation instead (as suggested by Ingo).
-alphabranch (it's only a cleanup)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33025 a95241bf-73f2-0310-859d-f6bbb57e9c96
a directory, we returned EINVAL instead, which caused Perl's internal
glob() implementation to fail prematurely
+alphabranch (will do that myself in a minute)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32999 a95241bf-73f2-0310-859d-f6bbb57e9c96
end up as 0 again in any case. It certainly looks correct without it, removing
so it doesn't confuse the next one reading over it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32994 a95241bf-73f2-0310-859d-f6bbb57e9c96
many pages as are actually missing, not the full count.
* Take into account that free_page_queue_count() can be less than sReservedPages
(when some of the reserved pages have been allocated already) in
vm_page_num_unused_pages(). Before it could return negative and therefore
wrapped numbers.
* Simplify the page scrubber loop by continuing early. Also avoids a needless
interrupt spin lock acquisition when there's nothing to do.
* Some minor coding style cleanup.
* Fix a typo.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32980 a95241bf-73f2-0310-859d-f6bbb57e9c96
allows for BFS based LiveCDs. Still this whole name matching feels hacky.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32976 a95241bf-73f2-0310-859d-f6bbb57e9c96
This allows for synchronous uses where subrequests are forked off and waited on.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32936 a95241bf-73f2-0310-859d-f6bbb57e9c96
only some sub requests worked. Previously we would have simply canceled all
of the subrequests in the loop because we cancel after the first error.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32914 a95241bf-73f2-0310-859d-f6bbb57e9c96
* An off by one error prevented the very last block of a device to be accessed
through IO.
* In case of error the request wasn't notified causing anyone (the page writer
for example) to wait forever for the request to complete.
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capabilities to aid in debugging memory corruption issues.
It does:
* Initialize memory to 0xcc to help turn up use of uninitialized memory
* Set freed memory to 0xdeadbeef to help find accesses of freed memory
* Use the paranoid heap validation to turn up many cases of memory corruption
* Use a simplistic wall check to turn up memory overwrites past allocations
* Take extra steps to validate freed addresses to turn up misaligned frees
It has an interface to en-/disable paranoid validation and to start/stop regular
wall checking. Both are currently just enabled. At a later stage a debug version
of libroot could be used by an application and the checks enabled at will. Note
that due to the paranoid validation and the suboptimal locking this allocator
will perform horribly. Still to find memory corruption issues in the system or
also in your applications it can be helpful to build your installation with it
turned on. To enable it you currently need to edit the Jamfile to sub-include
the malloc_debug instead of the malloc directory.
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for the page list but not the area one. Since multiple pages can be allocated
at once, even an area that is not at the top of the list can become empty. In
such a case the area list would previously have lost entries. Also because
we can remove more than one page from any area, not just the top one, we may
need to move forward in the list so that it stays ordered by free pages.
+alphabranch
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* Got rid of <dirent_private.h> -- the __DIR structure is private to dirent.c,
now. The attribute directory, index directory, and query functions use the
the public POSIX API, so does the kernel module code. Those components were
not initializing the structure correctly anymore since the introduction of
telldir()/seekdir().
+alphabranch
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to " &" as really the whole rest of the file uses that style.
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switch /boot to a different volume in two operations, unless you have first
linked /system/lib into /bin. This patch assumes that / will always have the
ID 1. Don't know if that is proper. Note that I also thought about solving
this in the VFS, since perhaps it isn't the job of root-fs to know about
/boot, but that would of course introduce another check for every rename
operation, which I decided against.
+alphabranch
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32806 a95241bf-73f2-0310-859d-f6bbb57e9c96
Seems like we didn't remember to change it back, even
with the #warning. :-)
I tested ftp and it works fine. This also closes ticket #4176.
+alphabranch
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32766 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Moved device_manager/settings.cpp to debug/safemode_settings.cpp.
* Removed the somewhat hacky concatenation of kernel settings and safemode
settings in the boot loader. Instead, get_safemode_option() will now fall
back to the kernel settings, if it couldn't spot a setting in the safemode
settings. This allows for more control, and also makes enabling serial
debug output actually work (ie. overriding the kernel settings via safemode
options).
* Adjusted debug_init_post_vm(), and smp_init_other_cpus() to use
get_safemode_boolean().
* Therefore, I added safemode_settings.cpp to the boot loader as well.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32685 a95241bf-73f2-0310-859d-f6bbb57e9c96
So either +alphabranch or remove the declarations from <dirent.h>.
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into the scope of the lock. Saves an InterruptsSpinLocker.
* Use an InterruptsSpinLocker() as in other places.
* When creating/forking a team fails because the kernel thread cannot be spawned
balance the already sent TEAM_ADDED notification by sending a TEAM_REMOVED one.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32595 a95241bf-73f2-0310-859d-f6bbb57e9c96
