Commit Graph

358 Commits

Author SHA1 Message Date
Axel Dörfler
f951ca0e6a Fixed a couple of bugs:
* fs_unmount() freed vnodes, but didn't remove them from the unused list if
  needed.
* vfs_get_module_path() could put a vnode twice under several situations.
* vnode_path_to_vnode() now always puts the dir vnode, even if the provided
  path is NULL. Documented the fact that it does eat the ref, too.
* Added a to-do item in vfs_get_vnode_cache() about a possible problem.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16662 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-08 21:42:14 +00:00
Axel Dörfler
4d664f91ca * Closing a port now also deletes the port's semaphores, so that a pending write_port(),
read_port() or port_buffer_size() will fail immediately.
* Made the functions above plus port_count() support this new way of closing
  a port.
* All of Marcus's port tests now succeed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16655 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-08 17:09:20 +00:00
Axel Dörfler
33a9adb376 * Added a wait_for_thread_etc() function that allows specifying semaphore flags
and a timeout.
* _user_wait_for_thread() was not interruptible before, ie. Control-C wouldn't
  work.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16654 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-08 16:41:03 +00:00
Axel Dörfler
457c814fdc read_port() and port_buffer_size() will now fail with B_BAD_PORT_ID when called
on a closed port with no messages left.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16647 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-08 15:08:48 +00:00
Axel Dörfler
311bcf391f Fixed a possible deadlock I've introduced earlier (since create_sem() calls
vfs_free_unused_vnodes()); the vnode mutex is now hold for much shorter times
only:
* Rewrote advisory_locking creation/maintenance to hold the vnode mutex only
  for very short times.
* the vnode mutex is no longer held during file cache construction; instead,
  the vnode is marked busy.
* Implemented an (incorrect for now) get_advisory_lock()


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16635 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-07 20:40:38 +00:00
Axel Dörfler
b4499305c7 vm_cache_resize() could remove one page too many, and thus eventually free
a modified page that mustn't be removed. This fixes bug #110.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16613 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-06 22:28:40 +00:00
Axel Dörfler
9f6376a0c7 * get_vnode() did not decrease the sUnusedVnodes counter when taking one node
of that list.
* Added a vfs_free_unused_vnodes() function that calls the low memory handler
  directly.
* create_sem_etc() now calls the above function in case there are no semaphores
  available anymore; this usually frees up to 2 semaphores per node (one from
  the cache if there is a file cache attached, and eventually one from the
  file system).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16610 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-06 16:18:52 +00:00
Axel Dörfler
d3fbce573c * Added a debugger command "info" that dumps some basic system usage info.
* Renamed OBOS_ARCH macro to HAIKU_ARCH.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16608 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-06 13:40:36 +00:00
Axel Dörfler
d98d96e9e5 Added debugger command that dumps info about the vnode usage.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16607 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-06 13:39:04 +00:00
Axel Dörfler
611b96cd42 Fixed "strange" debugger commands in help listing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16606 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-06 13:38:16 +00:00
Axel Dörfler
b420ef6461 * Many VM area creation functions just panicked when a vm_store, vm_cache,
or vm_cache_ref couldn't be created, instead of cleaning up and returning
  an appropriate error.
* vm_cache_ref_create() no returns a status_t instead of the vm_cache_ref
  (as that's part of the vm_cache anyway).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16602 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-06 13:06:10 +00:00
Axel Dörfler
8413da2383 Like the comment above said, vfs_lookup_vnode() doesn't grab a ref to the vnode,
so we better shouldn't release it.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16591 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-05 20:55:35 +00:00
Axel Dörfler
0254f09df2 It's not so problematic if a busy vnode was released; what is problematic is
if that was the last ref.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16590 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-05 20:54:17 +00:00
Axel Dörfler
0d4c16e0c0 * Reduced the stack usage of most of the I/O paths - there were several places
that put one or more full paths on the stack before, which could cause some
  problems under certain conditions.
* Cleaned up KPath, ie. use size_t instead of int32 where appropriate, added
  license.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16585 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-05 18:11:59 +00:00
Axel Dörfler
5d13c758d1 * Reduced stack usage for iterator_get_next_module() quite a bit by no
longer pushing a whole path on the stack.
* open_module_list() now adds the prefix to the paths it puts on the
  stack to reduce the amount of searching to do (this probably wasn't
  done before because of the earlier boot method via bootfs which
  didn't allow for deep path names).
* module.c is now module.cpp (for KPath usage).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16584 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-05 18:09:19 +00:00
Axel Dörfler
bb674499f8 * Finally implemented B_WATCH_MOUNT, ie. Tracker now shows newly mounted volumes
(mounting still only works from the Terminal).
* Shuffled functions in node_monitor.cpp around to clearly differentiate between
  private, private kernel, and public kernel functions.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16575 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-03 11:48:49 +00:00
Axel Dörfler
d5062208bb * Added a new list_insert_item_before() function that inserts a new item
before another one in the list.
* The video modes in the boot loader are now sorted (by resolution, larger
  resolution comes first). Doubled entries are automatically removed; this
  fixes bug #192.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16572 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-02 22:48:47 +00:00
Axel Dörfler
f94b06f992 Implemented SSE2/3 support (tested with VLC).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16569 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-02 17:12:56 +00:00
Ingo Weinhold
e68c6184ca user_debug_exception_occurred() now checks whether a non-default signal
action has been set for the signal. If so, it doesn't try to install a
debugger, but simply lets the caller deliver the signal.
Fixes bug #237 (VLC entering the debugger when checking for processor
extensions).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16556 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-28 23:03:06 +00:00
Marcus Overhagen
89d76e508d changed get_cached_block() to no longer use a reference argument
modified to panic when an invalid block is requested (to find fs errors)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16537 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-27 18:03:42 +00:00
Axel Dörfler
3ea7d1fcbe Minor cleanup, now returns B_NAME_TOO_LONG if the query string or mount parameters were
longer than 64k.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16527 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-27 13:23:29 +00:00
Stephan Aßmus
fb39ecb534 * Added an "iospace" debugger command.
* Fixed broken "full sem" mechanism.
* Fixed recycling of previously mapped IO space chunks. Should avoid the
  panic() call earlier introduced by Marcus.

(tracked down by axeld and bonefish over the course of three days
(in between skiing) and finally nailed on the bus back home)



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16511 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-26 17:44:27 +00:00
Stephan Aßmus
b270799715 * read_chunk_into_cache() might not have put back physical pages
in case of a read error.

(coded by axeld)



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16510 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-26 17:41:38 +00:00
Jérôme Duval
5a2ad00cab fix a TODO in _user_mount : added an argsLength parameter
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16480 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-20 18:04:27 +00:00
Axel Dörfler
333dcda418 The kernel debugger now only puts printable characters into the input buffer.
This should eliminate the cases where commands doesn't seem to be accepted (but look fine on screen).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16453 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-17 12:21:28 +00:00
Axel Dörfler
1be006f2cf No longer says "unknown command" to an empty input string in the debugger.
This fixes bug #189.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16452 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-17 11:43:47 +00:00
Marcus Overhagen
e87d23b1a7 added a panic into a loop that often causes a deadlock here
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16381 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-13 17:52:35 +00:00
Axel Dörfler
3cd6e76965 /dev/dprintf and _kern_debug_output() weren't dumped to the syslog before, even
if "syslog_debug_output" was set to "true". Reported by Jerome!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16290 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-07 23:45:44 +00:00
Axel Dörfler
d31d9974ba Slightly improved debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16288 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-07 16:55:06 +00:00
Ingo Weinhold
f4b0f67cf6 Added [arch_]int_post_device_manager() which is invoked after
the device manager is initialized. For x86 it does nothing, but
for PPC it searches for a supported interrupt controller and
remembers it for later use.
arch_int_{enable,disable}_io_interrupt() are implemented as
well as handling of external exceptions (aka as I/O interrupts).
We'll see later how well that works.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16271 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-07 02:50:32 +00:00
Ingo Weinhold
3277aade49 * Added get_root() to device_manager_info. Surprisingly enough, it
returns the root device node. Now its actually possible to
  traverse the device node tree without a node to start with.
* Fixed execution order problem in dm_get_next_child_node(). The
  supplied node was put first (which could cause its immediate
  deletion), but was still accessed thereafter.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16268 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-07 02:29:14 +00:00
Axel Dörfler
811ada6cae Fixed wait_for_resources() locking, reported by Ingo.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16218 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-03 17:12:34 +00:00
Axel Dörfler
d14aab0dca Changed the way how CPU activity is monitored: instead of taking the active
time of the idle thread as a measure, we now compute the CPU activity on
each thread switch - the time the CPU worked is the total of user and kernel
time a thread spent during its quantum.
Unlike before, this mechanism works correctly on SMP machines. I hope this
works as expected :)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16193 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-01 20:03:55 +00:00
Axel Dörfler
df213cedbc * CPUs can now be disabled - that is, they will keep idling.
* Added syscalls _kern_set_cpu_enabled() and _kern_cpu_enabled().
* scheduler.c::sRunQueue::tail was not maintained at all; changed sRunQueue to
  be a simple thread pointer instead of a struct thread_queue.
* Turns out we're monitoring CPU activity incorrectly when we've got more
  than one CPU.
* Renamed the global CPU array from "cpu" to gCPU.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16186 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-01 16:09:05 +00:00
Axel Dörfler
99085d6771 Added an extra debug function that dumps all iframes in case the stack crawl
doesn't work correctly for some reason.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16180 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-01 12:35:10 +00:00
Axel Dörfler
562c5a27d9 Make sure the compiler knows what we want.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16179 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-02-01 12:34:03 +00:00
Axel Dörfler
f1d806fe5d Fixed call_all_cpus(): it shouldn't call the function synchronously; inter-CPU
synchronization as done in init_mtrrs() failed because of that (let the system
hang).
Unfortunately, MTRR still doesn't work on my dual PIII with SMP enabled; that
was just one reason it didn't work.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16173 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-31 18:30:34 +00:00
Axel Dörfler
204131dc97 Added a real yield function to the kernel (using the next_priority approach).
The test application lets run a thread at the highest priority that calls
yield all the time - the system stays responsible when it runs, so it seems
to work fine :)
Changed the malloc implementation to use _kern_thread_yield() instead of
snoozing.
We should think about making this call public, too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16166 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-31 02:29:02 +00:00
Axel Dörfler
d14af9fde6 Introduced a next_priority field to struct thread that will be used when
enqueueing a thread to the run queue.
This mechanism is now used for the thread priority boost on semaphore
release. Also, those threads are no longer made real time threads, they
now get a temporary priority of B_FIRST_REAL_TIME_PRIORITY - 1.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16165 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-31 01:58:49 +00:00
Axel Dörfler
5d16441307 Now usually ignores the length of the data segment as well.
It now works fine on my P4 system as well :-)
But since the BIOS area is not identity mapped, it might work on fewer systems
than it does in BeOS R5.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16154 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-30 16:32:47 +00:00
Axel Dörfler
afef4f3fff The syslog_daemon now ignores zero length messages, and the kernel's syslog
mechanism doesn't send them out any longer.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16153 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-30 16:09:24 +00:00
Axel Dörfler
bd610d2fcd * Added kernel settings for APM - defaults to disabled (since it doesn't work
on at least one of my systems, it only works on 3 of them...).
* Added APM safemode setting.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16152 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-30 14:43:38 +00:00
Axel Dörfler
8a1f6775b9 * You can now specify a thread when using the "unreal" debugger command.
* Added a thread priority column to the thread list.
* Added "realtime" command that lists all real-time threads.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16141 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-29 19:50:00 +00:00
Axel Dörfler
5da68569d0 The APM now successfully shuts down my IBM ThinkPad T40. It's still disabled
for more testing on other machines.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16136 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-29 15:51:33 +00:00
Axel Dörfler
036b999b54 Unbroke the build (ps2.h was suddenly missing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16121 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-28 18:48:50 +00:00
Axel Dörfler
afd6dfc8b4 Implemented first basic APM driver. Only tested with QEMU so far, that's why
it's currently disabled.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16120 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-28 18:11:20 +00:00
Axel Dörfler
1bb74eb185 This fixes the work-around made in r16105, and some more:
* cached_block::parent_data can be NULL in a sub transaction in case the
  block wasn't part of the parent transaction (but not in low memory
  situations). cache_abort_sub_transaction() and cache_detach_sub_transaction()
  didn't account for this, though, ie. the block data could end up
  corrupted.
* Renamed cached_block::original in original_data.
* Renamed cached_block::data in current_data.
* Added some comments.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16108 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 21:02:53 +00:00
Jérôme Duval
2e5ac35292 fixed some traces
cache_abort_sub_transaction now doesn't crash if parent_cache is NULL (happens in low memory situations)
Axel, please review and fix if needed


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16105 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 16:42:12 +00:00
Ingo Weinhold
f602da2b72 * Turned the kernel platform support from a library into an object.
* Moved the Open Firmware function platform_get_next_device() from
  the boot loader into the kernel (renamed to of_get_next_device()).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16101 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 15:06:59 +00:00
Ingo Weinhold
6cdd45a94b Added enum to PPCPlatform to identify the platform.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16099 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 14:59:16 +00:00