Commit Graph

3799 Commits

Author SHA1 Message Date
Ingo Weinhold
6dacf0502d Ignore physical memory below 1 MB. This is a work-around for buggy BIOSes
providing incorrect memory types. It doesn't cost us anything, since the
kernel reserves all but the unusable range later anyway. Should fix #1925.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35736 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-03 14:54:46 +00:00
Axel Dörfler
6a7f219c8d * block_notifier_and_writer() will now flush 1000 blocks when reaching the soft
memory limit.
* Improved debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35735 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-03 14:39:26 +00:00
Axel Dörfler
0181fe4b21 * Replaced cached_block::accessed (the number of accesses) with last_accessed
(the time of the last access), as what we really want is a frequency/last
  access time scoring, and accessed alone is useless for that.
* put_cached_block() no longer frees any unused blocks.
* The low memory handler will now only lock the cache if there is something
  to do. Also, it did not take address space warnings into account.
* Even when memory is critical, we don't free all unused blocks anymore - if
  the number of blocks we free now (10000) is not sufficient to get out of the
  critical condition, chances are good that we will be called again :-)
* block_notifier_and_writer() now tries to make sure that the total block cache
  memory consumption grows not much larger than half of the available RAM.
* This should all help to limit the block cache usage a bit better. Hopefully,
  a checkfs run will no longer run out of memory here (couldn't test yet).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35733 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-03 10:28:57 +00:00
Ingo Weinhold
d40a935560 Boot loader (x86 mmu.cpp):
* Made the page table allocation more flexible. Got rid of sMaxVirtualAddress
  and added new virtual_end address to the architecture specific kernel args.
* Increased the virtual space we reserve for the kernel to 16 MB. That
  should suffice for quite a while. The previous 2 MB were too tight when
  building the kernel with debug info.
* mmu_init(): The way we were translating the BIOS' extended memory map to
  our physical ranges arrays was broken. Small gaps between usable memory
  ranges would be ignored and instead marked allocated. This worked fine for
  the boot loader and during the early kernel initialization, but after the
  VM has been fully set up it frees all physical ranges that have not been
  claimed otherwise. So those ranges could be entered into the free pages
  list and would be used later. This could possibly cause all kinds of weird
  problems, probably including ACPI issues. Now we add only the actually
  usable ranges to our list.

Kernel:
* vm_page_init(): The pages of the ranges between the usable physical memory
  ranges are now marked PAGE_STATE_UNUSED, the allocated ranges
  PAGE_STATE_WIRED.
* unmap_and_free_physical_pages(): Don't free pages marked as unused.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35726 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-02 18:13:06 +00:00
Ingo Weinhold
a93fa3c9ea More debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35725 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-02 17:50:21 +00:00
Ingo Weinhold
dcdf2ab981 Extended assert output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35724 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-02 17:49:46 +00:00
Michael Lotz
610a2eed63 Made heap classes const just in case. They really already were though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35713 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-01 22:29:23 +00:00
Axel Dörfler
1c164de7d2 * Quick&dirty fix of a race condition that caused an endless loop in
object_cache_alloc(): the ObjectCache::total_objects count was increased in
  ObjectCache::InitSlab(), but the slab was really only added at a later point
  between the cache could be unlocked.
* If a second object_cache_reserve_internal() managed to be called while the
  lock was unlocked, it would see that there has to be space available, and
  will then return -- however, since the other thread could not yet place the
  slab into the cache, object_cache_alloc() cannot find it.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35702 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-01 16:35:17 +00:00
Ingo Weinhold
c0d54ea244 Enabled serial output earlier.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35699 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-01 13:48:31 +00:00
Ingo Weinhold
dfa77fa65b Automatic whitespace cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35698 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-01 13:47:32 +00:00
Ingo Weinhold
84328c264b Extended assert output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35697 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-03-01 13:45:02 +00:00
Ingo Weinhold
e82b595ac6 * TRACE(()) -> TRACE()
* Fixed warnings with tracing enabled.
* Improved some debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35686 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 23:45:00 +00:00
Ingo Weinhold
af0572ead2 Fixed debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35685 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 23:30:23 +00:00
Stefano Ceccherini
283926fe70 small cleanup. Also increased LAPIC timer priority from 2 to 3 (nothing changes yet anyway).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35662 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 17:20:50 +00:00
Stefano Ceccherini
ae6721ad6e Small cleanups, undef TRACE_HPET. Still at priority 0.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35661 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 17:18:43 +00:00
Stefano Ceccherini
5b15d1ec1e small cleanup: move variables declaration near where they're used.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35660 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 17:17:42 +00:00
Stefano Ceccherini
734d41fbf6 Move variables declaration from start of function to where they are used.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35659 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 17:16:29 +00:00
Ingo Weinhold
2340fc36f1 Fixed build with tracing turned on and improve/added debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35658 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 16:42:22 +00:00
Ingo Weinhold
fc5c7fdd81 dump_info(): We can't use use cpu_get_active_time() in the kernel debugger as
it tries to acquire the thread spinlock.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35657 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 15:39:44 +00:00
Alexandre Deckner
cd4e946773 * Add a serial_input command to the kernel debugger, allows using serial input even when on-screen kdebug is enabled. Usefull for remote debugging. Please review/adjust.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35650 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 00:50:01 +00:00
Michael Lotz
a282be40e4 Re-lock the cache directly after the read. Otherwise the error case would
remove the block from an unlocked cache and the cache->lock would be unlocked
twice when the calling function unlocked. It panics in that case anyway, but
this should make it continuable and is more correct.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35648 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-28 00:02:31 +00:00
Ingo Weinhold
4891bed4d2 * large_memory_physical_page_ops_init(): Don't assign the return value before
it is fully initialized.
* arch_vm_translation_map_is_kernel_page_accessible(): Check whether
  sPhysicalPageMapper has already been initialized.

If a panic() during or before the initialization of the physical page mapper
occurred, we no longer access a partially initialized object or a NULL pointer.
This should fix the triple fault part of #1925.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35644 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-27 21:20:29 +00:00
Ingo Weinhold
7d9bce2483 debug_resolve_vnode_path(): Avoid duplicate slash at the beginning of the
path.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35642 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-27 20:29:11 +00:00
Ingo Weinhold
56a3f5184c Make use of the entry cache.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35641 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-27 20:27:52 +00:00
Ingo Weinhold
c35e2c70cb Added option "-p" to the "vnode" debugger command. Using the entry cache it
tries to resolve the vnode's path.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35626 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-26 22:14:42 +00:00
Ingo Weinhold
83291a2a64 Added DebugReverseLookup() method to reverse-lookup directory and entry name
for a given vnode (for debugging purposes).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35625 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-26 22:13:18 +00:00
Ingo Weinhold
8b3d3d8a15 Correctly handle cases when a thread single-steps into the kernel as it can
happen on syscalls or "int" instructions. The debug exception handler sets
the thread debug flags B_THREAD_DEBUG_STOP and
B_THREAD_DEBUG_NOTIFY_SINGLE_STEP (new) and lets the thread continue. Before
leaving the kernel the thread is stopped and a single-step notification is
sent. Fixes #3487.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35620 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-25 20:20:16 +00:00
Rene Gollent
b5db1a786f Patch by Matt Madia: fix ARM build.
Closes ticket #5476.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35618 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-25 18:49:45 +00:00
Stefano Ceccherini
36eb70516c Fixed various problems which didn't let HPET timers work on my machine, most
notably:
- in hpet_clear_hardware_timer() we cleared the HPET_CONF_TIMER_INT_ENABLE
flag, and never set it back anymore (now we do, in hpet_set_hardware_timer())
- the incorrect interrupt configuration (although it shouldn't matter in legacy mode).
Also test the HPET counter before trying to use it.
Improved debug information.
HPET timers are still at priority 0, since I coulnd't yet test on other
machines (besides mine, QEMU and XenServer 5.5), and doen't work for
some reason with SMP enabled.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35611 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 21:52:04 +00:00
Ingo Weinhold
2cf60f9070 * Moved the syscall stuff from arch_commpage.cpp to x86_syscalls.{cpp,h}.
* On context switches we do now set the IA32_MSR_SYSENTER_ESP. This saves us
  setting esp at the beginning of x86_sysenter(). More importantly when
  entering it in single-step mode, this no longer causes a double fault
  (cf. #3487). We still don't handle the resulting debug exception correctly,
  so that we still get a (continuable) panic().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35609 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 19:50:20 +00:00
Ingo Weinhold
464d9f1252 Changed object_depot_store() return value to void. It is now always takes
over ownership of the object. Fixes double free introduced in r35605.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35608 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 19:04:41 +00:00
Ingo Weinhold
bc208a852b Removed TODO that isn't one.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35606 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 17:09:02 +00:00
Ingo Weinhold
462dd94a1f Don't leak the object when allocating a magazine failed.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35605 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 16:47:27 +00:00
Axel Dörfler
6426413dcb * Also print the maximum full count, and the magazine capacity when being
dumped.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35603 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 15:08:52 +00:00
Axel Dörfler
ff59ce680d * The low resource handler now empties the cache depot's magazines; before,
they were never freed unless the cache was destroyed (I just wondered why
  my system would bury >1G in the magazines).
* Made the magazine capacity variable per cache, ie. for larger objects, it's
  not a good idea to have 64*CPU buffers lying around in the worst case.
* Furthermore, the create_object_cache_etc()/object_depot_init() now have
  arguments for the magazine capacity as well as the maximum number of full
  unused magazines.
* By default, you might want to initialize both to zero, as then some hopefully
  usable defaults are computed. Otherwise (the only current example is the
  vm_page_mapping cache) you can just put in the values you'd want there.
  The page mapping cache uses larger values, as its objects are usually
  allocated and deleted in larger chunks.
* Beware, though, I couldn't test these changes yet as Qemu didn't like to run
  today. I'll test these changes on another machine now.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35601 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-24 14:43:20 +00:00
Ingo Weinhold
682c3066c7 Don't complain about running out of MTRRs before the CPU modules have been
loaded in the first place.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35585 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-23 13:51:41 +00:00
Ingo Weinhold
21d9331efa Beautified the output of the "io_context" command.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35582 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-23 13:43:43 +00:00
Ingo Weinhold
0e4ea02d0a * Use add_debugger_command_etc() for adding the debugger commands.
* Added a "devfs_cookie" command.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35581 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-23 13:42:55 +00:00
Ingo Weinhold
0497cb9f12 VMAnonymousCache::_MergeSwapPages(): Missing check which could lead to a NULL
pointer access. Should fix #5453.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35575 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-22 19:03:34 +00:00
Axel Dörfler
9d071e27f1 This should finally nail #5415:
* Since the same block can be in up to two transactions, it's very well possible
  that one shouldn't write all transactions in a single run.
* Forgot to pass on the iterator from BlockWriter::Add(transaction) to
  Add(block).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35565 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-21 20:03:52 +00:00
Ingo Weinhold
8b64284b67 Handle va_list copying correctly. Fixes PPC build.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35545 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 19:53:48 +00:00
Ingo Weinhold
24244d3ceb idle_scan_active_pages(): vm_page_requeue() requires the caller to mark the
page accessed for the access debugging feature.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35542 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 17:24:14 +00:00
Ingo Weinhold
4a1f668383 * Also print the page for the page related asserts.
* Used vm_page::IsMapped() to simplify things.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35541 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 17:17:22 +00:00
Ingo Weinhold
0ea0681f58 Made the "message" command work correctly again. Broke it with my recent
changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35540 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 17:16:21 +00:00
Ingo Weinhold
3e5343f226 free_cached_page(): Removed incorrect asserts. The same ones appear a few
lines later anyway, after the cache has been locked and it has been verified
that the page is still a candidate. Fixes #5432.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35539 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 16:45:44 +00:00
Ingo Weinhold
bd7645a12a * Made vm_page::state private and added accessor methods.
* Added kernel tracing for page state transitions.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35538 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 15:57:44 +00:00
Ingo Weinhold
98d2fc4b23 Worked around "uninitialized variable" compiler warnings.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35537 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 14:23:18 +00:00
Ingo Weinhold
9e4ad0799b * Pass the panic() format and args through to kernel_debugger_loop(), so that
the message doesn't get truncated.
* No longer print the "PANIC:" prefix when entering the kernel debugger via
  kernel_debugger().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35535 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 14:00:56 +00:00
Ingo Weinhold
cd694fdbfa * Fixed abuse of the DoublyLinkedListLink. TemporaryVariables have an
explicit queued field now. Fixes #5352.
* set_debug_variable(): Disallow symbol variable names.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35534 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 13:19:41 +00:00
Ingo Weinhold
477fd1be55 Added assert in free_page().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35533 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 12:37:48 +00:00
Ingo Weinhold
211c63df5a reserve_pages(): When cannibalizing pages from the own cache it didn't check
whether the pages where mapped. Was introduced already in r22731.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35532 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 12:36:49 +00:00
Ingo Weinhold
9824ded0b0 cache_io(): Also requeue the last touched page to keep things roughly LRU
sorted.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35530 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-20 10:51:53 +00:00
Jérôme Duval
87c1c0e443 moved fenv arch implementations to their respective directories
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35527 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-19 22:48:35 +00:00
Axel Dörfler
63b69bec3c * Applied patch by Andreas Färber as part of #5319.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35522 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-19 16:44:55 +00:00
Ingo Weinhold
c3d7933274 Added missing PPCVMTranslationMap::QueryInterrupt(). Fixes #5275.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35516 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-18 17:43:09 +00:00
Ingo Weinhold
dac21d8bfe * map_physical_memory() does now always set a memory type. If none is given (it
needs to be or'ed to the address specification), "uncached" is assumed.
* Set the memory type for the "BIOS" and "DMA" areas to write-back. Not sure, if
  that's correct, but that's what was effectively used on my machines before.
* Changed x86_set_mtrrs() and the CPU module hook to also set the default memory
  type.
* Rewrote the MTRR computation once more:
  - Now we know all used memory ranges, so we are free to extend used ranges
    into unused ones in order to simplify them for MTRR setup.
  - Leverage the subtractive properties of uncached and write-through ranges to
    simplify ranges of any other respectively write-back type.
  - Set the default memory type to write-back, so we don't need MTRRs for the
    RAM ranges.
  - If a new range intersects with an existing one, we no longer just fail.
    Instead we use the strictest requirements implied by the ranges. This fixes
    #5383.

Overall the new algorithm should be sufficient with far less MTRRs than before
(on my desktop machine 4 are used at maximum, while 8 didn't quite suffice
before). A drawback of the current implementation is that it doesn't deal with
the case of running out of MTRRs at all, which might result in some ranges
having weaker caching/memory ordering properties than requested.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35515 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-18 13:52:43 +00:00
Axel Dörfler
c5e52ecb78 * cache_sync_transaction() now puts all blocks into the BlockWriter, and
therefore does not unlock anymore while iterating over the transactions.
  This gave other threads the opportunity to finish a transaction, causing
  bug #5412. Also, the BlockWriter will now always close transactions on its
  own, and you need to pass the transaction hash iterator to Add().
* Also, transactions that contain blocks that are currently written back will
  be ignored by the block writer, as well as cache_sync_transaction(). This
  fixes bug #5415.
* Improved error handling if BlockWriter fails to write back blocks. Most
  notably, they are no longer left busy_writing, and the functions calling
  it do proper error reporting (besides block_cache_discard() that does not
  return any erro code; I've added a TODO note there for now).
* The BlockWriter now starts with a larger array once it has to allocate one.
* One can now limit the number of blocks that go into a BlockWriter. This is
  used by the block writer thread, that shouldn't always write back everything
  every two seconds.
* Also, the fixed array is larger now (leaving enough space such that the
  block writer/notifier does not need to allocate anything).
* And finally, if allocating the array fails, the BlockWriter falls back to the
  synchronous write back used previously. IOW it will never write back less
  blocks than you ask for.
* Added static BlockWriter::WriteBlock() method replacing write_cached_block().
* Forgot to rename block_cache::busy_count to busy_reading_count.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35510 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-17 16:36:40 +00:00
Ingo Weinhold
d4af8f3e33 Added several TODOs for problems of the IOBuffer virtual vecs code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35509 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-17 16:00:05 +00:00
Ingo Weinhold
176f7588eb Added warning to vm_map_physical_memory_vecs().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35508 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-17 15:58:12 +00:00
Axel Dörfler
8941a2ba08 * Fixed compilation with PARANOID_HEAP_VALIDATION turned on.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35507 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-17 15:40:02 +00:00
Stefano Ceccherini
03bab65450 set_hardware_timer() would sometimes (on boot) pass a negative timeout to
arch_timer_set_hardware_timer(). This was harmless, at least with our
current x86 timers implementation, since they checked for minimum timeouts.
Very small cleanup (now that the file is compiled as C++).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35505 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-17 09:12:43 +00:00
Ingo Weinhold
1f611c018b The file cache code was completely ignoring the vm_page::modified flag. In
particular it wouldn't set the flag when writing something to a page, but
only move it to the modified queue. Since mapping the page would move it to
another queue, the information that the page was modified would be lost and
it would never be written to disk. Was well reproducible with a Haiku image
build and limited amount of memory.
Fixes the hopefully last remaining cause for #5374.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35500 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 17:22:56 +00:00
Ingo Weinhold
6949076049 * Added some more asserts for cached pages.
* full_scan_inactive_pages(): Fixed syntactical glitch (missing "else").
  Affected only the active paging mode and was relatively harmless. The worst
  case would be that an inactive page would be moved to the cached queue
  although its usage_count hadn't dropped to 0 yet, thus freeing it before
  pages that deserved it more.
* move_page_to_active_or_inactive_queue():
  - Was ignoring the page's modified flag, thus potentially moving a modified
    page to the cached queue. That could happen only in rare cases though,
    like when the page was still mmap()ped while being written and modified and
    unmapped before being done.
  - No longer move the page to the inactive queue, even if its usage count is 0.
    In idle mode the page daemon doesn't look at inactive pages, so the page's
    stats wouldn't be updated anymore.
  - Renamed to move_page_to_appropriate_queue().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35499 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 17:12:42 +00:00
Ingo Weinhold
665e7ac629 map_page(): Got rid of the activatePage parameter. We always move previously
inactive pages to the active queue. This has the advantage that the page
daemon will keep track of those pages even in idle mode (where it only
processes the active queue).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35498 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 16:54:01 +00:00
Axel Dörfler
66a1a16cbc * Made cache_end_transaction(), cache_detach_sub_transaction(), and
block_cache_discard() use the BlockWriter directly as well.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35496 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 14:00:44 +00:00
Axel Dörfler
599b988100 * Fixed coding style violation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35495 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 13:26:28 +00:00
Axel Dörfler
e190cae151 * Build fix (bfs_inode::InitCheck() is now const), and cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35494 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 12:49:52 +00:00
Axel Dörfler
319a2dee90 * Improved KDL command output (ie. take busy_writing into account, too).
* Added new KDL command "cached_block" that dumps a cached block.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35493 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 12:24:54 +00:00
Axel Dörfler
751e92fde1 * cache_sync_transaction() used an earlier signature of the BlockWriter
constructor, causing bug #5412.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35489 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-16 08:16:17 +00:00
Michael Lotz
64bf879506 Finish the implementation of heap_debug_malloc_with_guard_page() using mprotect
to make the guard page inaccessible. Thanks Ingo for the pointer!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35488 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 23:48:51 +00:00
Ingo Weinhold
22fb471ff0 * page_writer(): Missing continue in the temporary skipping case.
* vm_page_write_modified_page_range(): Need to DEBUG_PAGE_ACCESS_END() a bit
  later.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35487 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 23:01:31 +00:00
Ingo Weinhold
4322b983cd Fixed the build with DEBUG_PAGE_ACCESS enabled.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35486 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 22:50:28 +00:00
Ingo Weinhold
fa47a7c434 page_writer():
* Use the same criterion when to write back temporary pages as the page daemon.
* Move wired and temporary pages that shall not be written back to the active or
  inactive queue so they don't get stuck in the modified queue and potentially
  cause the page writer to run permanently without actually making progress
  (#5382).

page writing implementation:
* If writing back a temporary page failed, move it back to the inactive or
  active queue, so it doesn't get stuck in the modified queue. If active paging
  continues, it might find its way back to the modified queue in the next
  iteration, but that improves the situation a bit at least. Particularly with
  the port heap pages not really being swappable ATM.
* Never dequeue pages from the modified queue. We mark them busy, so the page
  writer will skip them anyway. This allows others to play with the page to some
  extend (at least allowing to move it between the queues). This fixes #5404.
* Removed PageWriteWrapper::ClearModifiedFlag(). We clear the modified flag in
  PageWriteWrapper::SetTo(), now, so that the page writer doesn't need to do
  that explicitly either.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35485 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 22:40:37 +00:00
Ingo Weinhold
bf96cfdcbe Added TODO regarding the non-swappability of the initial port heap area.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35484 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 22:19:49 +00:00
Ingo Weinhold
3795172c67 VMVnodeCache::AcquireUnreferencedStoreRef(): We put the wrong vnode when ours
was already deleted.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35483 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 22:18:39 +00:00
Michael Lotz
386c8bad1b Return an error when encountering an invalid allocation info.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35482 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 21:42:55 +00:00
Michael Lotz
ac653a30df Add heap_debug_set_debugger_calls() which allows to disable debugger calls for
the heap debug panics. Instead syslog output is generated if turned off.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35481 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 21:35:07 +00:00
Michael Lotz
c1502cf1b8 Add heap_debug_get_allocation_info() to retrieve the size of the allocation as
well as the thread allocating it. Can for example be used to verify that an
object or buffer is as large as expected.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35480 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 20:57:52 +00:00
Michael Lotz
081ff2db28 * Add heap_debug_set_memory_reuse() which allows to disable memory reuse,
keeping all returned heap memory in the 0xdeadbeef state (including the
  first sizeof(void *) bytes otherwise for the free list). While wasting a lot
  of memory it allows you to rely on 0xdeadbeef being always present as no
  future allocation will reuse the freed memory block.
* Also added heap_debug_malloc_with_guard_page() which is intended to allocate
  a memory block so it is aligned that the start of invalid memory past the
  allocation is in an unmapped guard page. However the kernel backend that would
  guarantee this is not yet implemented, so right now this works only by chance
  if no other area happens to be allocated exactly past the created one. With a
  very specifc suspicion you can put that one allocation you get to good use
  though. It causes a crash when accessing memory past the allocation size so
  you actually get a backtrace from where the access happened instead of only
  after freeing/wall checking.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35478 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 20:28:15 +00:00
Ingo Weinhold
ba3d62b66f X86VMTranslationMap::UnmapArea(): Don't change the page state before
it has been unmapped. This way modified pages could end up in the "cached"
queue without having been written back. That would be a good explanation for
#5374 (partially wrong file contents) -- as soon as such a page was freed,
the invalid on-disk contents would become visible.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35477 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 19:36:17 +00:00
Ingo Weinhold
c1f3da7b5b UnmapPage() requires the caller to deal with the debug page access marking,
so the fallback implementations of UnmapPages() and UnmapArea() need to do
that. Not relevant for x86.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35476 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 19:10:44 +00:00
Ingo Weinhold
0f2666ecc2 _user_set_memory_protection(): Missing page access debug markers.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35475 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 18:49:12 +00:00
Ingo Weinhold
b0f5b17072 Removed PageWriteWrapper::CheckRemoveFromShrunkenCache() and moved removing
the page to Done().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35474 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 18:47:45 +00:00
Axel Dörfler
54f3267e78 * Fixed maintaining the object depot's free magazine count (it's not really used
though).
* Added/improved some KDL commands to make the slab easier to work with from
  KDL.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35466 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 13:22:58 +00:00
Axel Dörfler
2cb3c4eb06 * Improved panic output I recently ran into.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35465 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 13:20:01 +00:00
Axel Dörfler
4ea83177ff * Implemented a BlockWriter class that now performs writing back blocks.
* Renamed the "busy" stuff to "busy_reading", and added a "busy_writing"
  concept.
* This now allows reading a block (and other blocks), while blocks are written
  back. This should speed all operations needing to write back blocks, like
  unzipping or compiling.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35464 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-15 13:07:14 +00:00
Axel Dörfler
fb40740174 * Restructured the notification driven addition/removal of drivers to
driver_events (ie. there is now only a single list to walk).
* Also, the DriverWatcher is now maintained using the driver_events.
  This fixes bug #5005.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35463 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-14 22:57:47 +00:00
Stefano Ceccherini
0b102d72d5 The hpet registers area is already wired, so use the vm_map_physical_memory()
call with the true parameter. Fixes a panic at boot when using the hpet timers


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35453 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-11 15:57:59 +00:00
Stefano Ceccherini
7ae188c379 Patch by Grey which fixes "auto-enabling" of the boot loader screen debug
which happened on some systems (mine included).
Should close ticket #5341.
Thanks! 


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35441 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-09 19:47:23 +00:00
Artur Wyszynski
e381020556 Disabled fenv for ppc & arm platforms for now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35440 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-09 14:10:07 +00:00
Artur Wyszynski
38ecc1a764 Added FreeBSD fenv implementation - tested with dmd port, seems that it works
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35437 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-09 06:09:28 +00:00
Artur Wyszynski
cee04e8074 Fixed various errors/warnings reported by cppcheck:
* memory leaks
* resource leaks
* added const's to getters
* removed a few reundant conditions


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35433 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-08 22:50:38 +00:00
Michael Lotz
f6a6245c89 * Adding malloc_debug.h that exposes the malloc_debug API.
* Moving some functions around, removing and adding others for the public API.

I've written a blog post at haiku-os.org to go as documentation for this
introducing the API and the other helpful bits.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35431 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-08 01:27:21 +00:00
Michael Lotz
60fb713d19 Must only advance by step sizes, otherwise we may end up with misaligned pages
again.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35426 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-07 16:55:43 +00:00
Michael Lotz
160abe2685 Sync two locking changes from kernel heap. This just moves the page locking into
the contiguous page allocation function and unlocks a bin locker a bit earlier.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35424 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-07 02:02:13 +00:00
Michael Lotz
b7d3ddaa0e Sync kernel heap with alignment handling fixes, simplifications and performance
improvements from debug heap in r35422.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35423 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-07 01:59:53 +00:00
Michael Lotz
638a24fa52 * Seperate the raw page wise allocation and allocations from bins.
* Make the contiguous page allocation capable of aligning the allocation
  and make it more clever by checking up front if there's a chance of getting
  enough pages at all, by giving up earlier if the page count can't be fit
  anymore, and in the alignment case by only checking the pages which have a
  valid alignment.
* If the alignment requirement is > B_PAGE_SIZE we now use page allocation
  directly, because the bins aren't necesarily aligned on their size past
  B_PAGE_SIZE anymore.
* When doing aligned bin allocation, calculate the aligned size up front and
  choose the right heap for the allocation.
* Also when doing aligned bin allocations we not only need to round up the size
  but also ensure that the bin we choose is aligned at all.
* Moved adding leak check info into it's own function.

Fixes various misalignment problems when working with alignments > B_PAGE_SIZE
or when using alignments < allocation size. Also the directly aligned page
allocations now only use up as many pages as actually required instead of
allocating based on the rounded up to align size.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35422 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-07 01:09:27 +00:00
Stephan Aßmus
bc00016122 Patch by "notzed": Adapt ARM platform stubs for recent VM changes. Thanks!
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35411 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-05 08:20:11 +00:00
Ingo Weinhold
4dafcc3b3b Since we potentially split segments into different regions, we need to
consider that when filling in the text and data ranges of the image info.
This fixes #5361 and #5351, caused by libtracker.so not finding its own
image.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35407 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-04 19:01:11 +00:00
Ingo Weinhold
dc6a6a9b42 Reenabled interrupts before notifying the page writer.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35399 a95241bf-73f2-0310-859d-f6bbb57e9c96
2010-02-03 21:11:31 +00:00