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.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36591 a95241bf-73f2-0310-859d-f6bbb57e9c96
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.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36583 a95241bf-73f2-0310-859d-f6bbb57e9c96
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.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36529 a95241bf-73f2-0310-859d-f6bbb57e9c96
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.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36528 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
interrupts (MSI).
* Add the remaining IDT entries and redirection functions in the interrupt code.
* Make the PIC end_of_interrupt() return a result to indicate whether the vector
was handled by this PIC. If it isn't we now issue a apic_end_of_interrupt()
in the assumption of apic local interrupt, MSI or IPI. This also removes
the need for the gUsingIOAPIC global and doing manual apic_end_of_interrupt()
calls in the SMP and timer code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36221 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Removed rounding up the end address to page alignment. It's not necessary
and could cause an overflow.
* Fixed possible infinite loop triggered by a rare race condition: When two
threads of a team were accessing the same unmapped page at the same time
each would trigger a page fault. One thread would map the page again, the
second would wait until the first one was done and update the page
protection (unnecessarily but harmlessly). If the first thread accessed the
page again at an unfortunate time, it would implicitly change the
accessed/dirty flags of the page's PTE, which was a situation the loop in
Protect() didn't consider and thus run forever.
Seen the problem twice today in form of an app server freeze.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36197 a95241bf-73f2-0310-859d-f6bbb57e9c96
pass stricter allocation flags to VMAddressSpace::{Remove,Delete}Area() or
could deadlock otherwise.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36188 a95241bf-73f2-0310-859d-f6bbb57e9c96
other places where previously the same functionality was duplicated. Also
seperated the header which was originally arch_smp.h into apic.h and arch_smp.h
again as some of it is MP and not actually APIC.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36182 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Implemented a tiny bit more sophisticated version of
estimate_max_scheduling_latency() that uses a syscall that lets the scheduler
decide.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36170 a95241bf-73f2-0310-859d-f6bbb57e9c96
locks.
* Added syscalls for a new kind of mutex. A mutex consists only of an int32 and
doesn't require any kernel resources. So it's initialization cannot fail
(it consists only of setting the mutex value to 0). An uncontended lock or
unlock operation can basically consist of an atomic_*() in userland. The
syscalls (when the mutex is contended) are a bit more expensive than semaphore
operations, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36158 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added new thread flag THREAD_FLAGS_ALWAYS_RESTART_SYSCALL. If set, it forces
syscall restart even when a signal handler without SA_RESTART was invoked.
* Fixed sigwait(): If one of requested signals wasn't already pending it would
never wake up. Also, the syscall always needs to be restarted, if interrupted
by another signal.
* Renamed a bunch of the POSIX signal function implementations which did return
an error code directly (instead via errno). Added correct POSIX functions
where needed.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36054 a95241bf-73f2-0310-859d-f6bbb57e9c96
doesn't mention the expected set_alarm() behavior. Tests under BeOS R5 Bone
crash the system in either case, though, so I guess we're free to go with the
expected POSIX behavior.
This make detection of hanging tests in the Open POSIX Test Suite work.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36046 a95241bf-73f2-0310-859d-f6bbb57e9c96
return it.
* lock_memory_etc(): On error the VMAreaWiredRange object could be leaked.
* [un]lock_memory_etc(): Call VMArea::Unwire() with the cache locked and
explicitly delete the range object after unlocking the cache to avoid
potential deadlocks.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36035 a95241bf-73f2-0310-859d-f6bbb57e9c96
Since the requirement is that the area's top cache is locked, allocating
memory isn't allowed.
* lock_memory_etc(): Create the VMAreaWiredRange object explicitly before
locking the area's top cache.
Fixes#5680 (deadlocks when using the slab as malloc() backend).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36033 a95241bf-73f2-0310-859d-f6bbb57e9c96
* _user_map_file(), _user_unmap_memory(): Verify that the address (if given) is
page aligned.
* Reworked memory locking (wiring):
- VMArea does now have a list of wired memory ranges and supports waiting for
a range to be removed.
- vm_soft_fault():
- Added "wirePage" parameter that, if given, makes the function wire the
page and return it.
- Added "wiredRange" parameter (for calls from lock_memory_etc()) and made
sure we never unmap wired pages. This could e.g. happen when a page from a
lower cache was read-mapped and a write fault occurred. Now in such a
situation the function waits for the page to be unwired and restarts.
- All functions that manipulate areas in a way that could affect wired ranges
do now either require the caller to make sure there are no wired ranges in
the way or do that themselves. Added a few wait_if_*_is_wired() helper
functions for that purpose.
- lock_memory_etc():
- Does now also work correctly when the range spans more than one area.
- Adds VMAreaWiredRanges to the affected VMAreas and retains an address
space reference (so that the address space won't be deleted as long as a
wired range exists).
- Resolved TODO: The area's caches are now locked when
increment_page_wired_count() is called.
- Resolved TODO: The race condition due to missing locking after looking up
the page mapping is now prevented. We hold the cache locks (in case the
page is already mapped) and the new vm_soft_fault() parameter allows us
to get the page wired.
- unlock_memory_etc(): Changes symmetrical to those in lock_memory_etc() and
resolved all TODOs.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36030 a95241bf-73f2-0310-859d-f6bbb57e9c96
syslog in the current KDL session. Added option "-k" for the former behavior.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35976 a95241bf-73f2-0310-859d-f6bbb57e9c96
Added fields for temporary storage of the debug registers dr6 and dr7 to the
arch_cpu_info structure. The actual registers are stored at the beginning of
x86_exit_user_debug_at_kernel_entry() and read in
x86_handle_debug_exception().
The problem was that x86_exit_user_debug_at_kernel_entry() itself overwrote
dr7 and, if kernel breakpoints were enabled, dr6 could be overwritten anytime
after. So x86_handle_debug_exception() would find incorrect values in the
registers (definitely in dr7) and thus interpret the detected debug condition
incorrectly. Usually watchpoints were recognized as breakpoints.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35951 a95241bf-73f2-0310-859d-f6bbb57e9c96
occurred. This fixes the automatic syscall restart case (would wait forever)
and aligns the behavior with poll().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35948 a95241bf-73f2-0310-859d-f6bbb57e9c96
arch_debug_stack_trace() through debug_call_with_fault_handler(), since the
one in the CPU structure can only be used for debug_{strl,mem}cpy(), which do
not potentially have nested debug_call_with_fault_handler() calls.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35920 a95241bf-73f2-0310-859d-f6bbb57e9c96
block was freshly allocated. A block returned by _GetUnusedBlock() already
has current_data and we would leak it before.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35918 a95241bf-73f2-0310-859d-f6bbb57e9c96
arch_debug_registers instead.
* Call arch_debug_save_registers() on all CPUs when entering the kernel
debugger.
* Added debug_get_debug_registers() to return a specified CPU's saved
registers.
* x86:
- Replaced the previous arch_debug_save_registers() implementation. Disabled
getting the registers via the gdb interface for the time being.
- Fixed the "sc", "call", and "calling" commands to also work for threads
running on another CPU.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35907 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Print the initial stack trace safely, i.e. in a setjmp() + fault handler
environment.
* Disable pagination while executing the executing the panic() commands. This
way even when it is not possible to use the keyboard we get the full output.
* Added "panic_commands" kernel debugger command, to execute the panic()
commands again (with pagination enabled).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35902 a95241bf-73f2-0310-859d-f6bbb57e9c96
is passed to some v*printf(), we clone it first. This way we can use it
repeatedly. It worked only on certain architectures correctly before.
* Changed the panic() semantics a bit: When the format contains the
(hopefully unusual enough) string "@!" only the part before it is
considered to belong to the panic message. The part after it is interpreted
as a command line to be executed directly after entering KDL. This way it
is possible to provide helpful command invocations only developers somewhat
familiar with the subsystem might come up with. E.g.:
panic("dec_vnode_ref_count: called on busy vnode %p"
"@! vnode -p %p; mount _mount", vnode, vnode);
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35896 a95241bf-73f2-0310-859d-f6bbb57e9c96
line, separated by ";".
* Fixed incorrect parsing when "|" was not separated by a space from the
previous argument.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35895 a95241bf-73f2-0310-859d-f6bbb57e9c96
the default setting for the "debug syslog" feature (can still be overridden
in the boot loader). Per default enabled for kdebug level >= 1.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35884 a95241bf-73f2-0310-859d-f6bbb57e9c96
for people who cannot capture serial output easier.
* The syslog sender thread waits with timeout now, so output added to the
syslog buffer without explicit notification is still written after a few
seconds at the latest.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35883 a95241bf-73f2-0310-859d-f6bbb57e9c96
support file creation.
* Extended open() and open_from() to support O_CREAT to create files.
open_from() has got an optional "permissions" parameter for that purpose.
* Fixed errno. It would crash when being used. Also changed the POSIX functions
to return their error code via errno as expected.
* Added writev().
* FAT file system:
- Added support for reading long file names.
- Added support for creating files (8.3 name only) and writing to them.
- Enabled scanning partitions with it.
* Boot loader menu:
- Enabled the "Reboot" menu item unconditionally.
- Added "Save syslog from previous session" menu item to the debug menu.
Currently saving the syslog to FAT32 volumes is supported.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35882 a95241bf-73f2-0310-859d-f6bbb57e9c96
received, but if the signal was in the thread's signal block mask, it would
not be handled. Added thread::sig_temp_enabled, an additional mask of not
blocked signals, which is set by sigsuspend() and evaluated and reset by
handle_signals(). Fixes#5567.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35836 a95241bf-73f2-0310-859d-f6bbb57e9c96
contribute significantly to the usable memory, but possibly make the MTRR
setup impossible. Might improve #5550.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35825 a95241bf-73f2-0310-859d-f6bbb57e9c96
