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
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
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
* 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
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
