Subversion Repositories HelenOS

Rev

Go to most recent revision | Show changed files | Details | Compare with Previous | Blame | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
2902 5914 d 4 h svoboda /branches/tracing/kernel/generic/ Implement proper kbox thread shutdown, with all bells and whistles. Use THREAD->debug_active in udebug_stoppable_xx() and friends  
2899 5914 d 17 h svoboda /branches/tracing/ Add support for SET_EVMASK debug operation  
2839 5943 d 19 h svoboda /branches/tracing/kernel/generic/ Add thread_attach_by_id() and use it to do ipc_connect_kbox() with proper locking  
2826 5948 d 3 h svoboda /branches/tracing/kernel/generic/ Move debug_go_call from task struct to thread struct  
2825 5948 d 3 h svoboda /branches/tracing/kernel/generic/ Introduce task debug-states (udebug_task_state_t)  
2808 5949 d 17 h svoboda /branches/tracing/ add kernel answerbox+thread to mediate access to task's memory  
2804 5950 d 23 h svoboda /branches/tracing/kernel/generic/ allow for attaching to tasks with sleeping threads  
2803 5951 d 1 h svoboda /branches/tracing/kernel/generic/src/proc/ fix: initialize debug fields in task structure  
2800 5951 d 4 h svoboda /branches/tracing/kernel/generic/ [tracing] fix initialiation of answerbox->task in ipc_answerbox_init  
2799 5951 d 5 h svoboda /branches/tracing/ Revert all changes in tracing branch (sync to r2785 of trunk)  
2787 5959 d 21 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2745 5989 d 2 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2712 6014 d 23 h decky /trunk/kernel/ prettyprint output  
2632 6076 d 13 h decky /trunk/kernel/generic/src/proc/ try to kill the tasks fewer times by introducing a delay in iterations  
2504 6201 d 18 h jermar /trunk/kernel/generic/ Give the AVL tree walkers the possibility to take an argument.
Each walker is now supposed to return a bool value to support walk termination.

Switch over from the tasks_btree B+tree to tasks_tree AVL tree.
This makes the fix for ticket #48 complete.
 
2446 6259 d 22 h jermar /trunk/kernel/generic/ More efficient and simpler task termination.

Based on the assumption, that after its creation, only the task itself can create more threads for itself,
the last thread with userspace context to execute thread_exit() will perform futex and IPC cleanup. When
the task has no threads, it is destroyed. Both the cleanup and destruction is controlled by reference
counting.

As for userspace threads, even though there could be a global garbage collector for joining threads, it is
much simpler if the uinit thread detaches itself before switching to userspace.

task_kill() is now an idempotent operation. It just instructs the threads within a task to exit.

Change in the name of a thread state: Undead -> JoinMe.
 
2436 6261 d 18 h jermar /trunk/ Fix two memory leaks.

In kernel, kernel_uarg structure needs to be deallocated when a thread
with userspace context is destroyed.

In userspace, the return value of the SYS_THREAD_CREATE must be checked
for error conditions and in case of error, uarg and stack must be freed
up.
 
2227 6313 d 7 h decky /trunk/kernel/ start shutdown infrastructure  
2216 6314 d 17 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2183 6316 d 21 h jermar /trunk/kernel/generic/ Continue to de-oversynchronize the kernel.
- replace as->refcount with an atomic counter; accesses to this
reference counter are not to be done when the as->lock mutex is held;
this gets us rid of mutex_lock_active();

Remove the possibility of a deadlock between TLB shootdown and asidlock.
- get rid of mutex_lock_active() on as->lock
- when locking the asidlock spinlock, always do it conditionally and with
preemption disabled; in the unsuccessful case, enable interrupts and try again
- there should be no deadlock between TLB shootdown and the as->lock mutexes
- PLEASE REVIEW !!!

Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops.
 
2118 6375 d 22 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2109 6377 d 2 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.
 
2089 6384 d 0 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6384 d 20 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6394 d 17 h jermar /trunk/ (c) versus (C)  
2050 6424 d 3 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2048 6426 d 18 h jermar /trunk/ Formatting and indentation changes.  
2042 6428 d 21 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again
 
2041 6428 d 22 h decky /trunk/kernel/generic/src/proc/ revert 2040  
2040 6429 d 0 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2039 6429 d 1 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2035 6429 d 23 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2000 6445 d 2 h decky /trunk/kernel/ move files to more proper locations  
1880 6523 d 16 h jermar /trunk/ Small improvements here and there.  
1864 6530 d 14 h jermar /trunk/ sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64.
 
1839 6559 d 21 h decky /trunk/kernel/generic/ finish security context isolation  
1820 6567 d 14 h decky /trunk/kernel/generic/ initial security context support  
1787 6584 d 19 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6591 d 20 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 6606 d 1 h jermar /kernel/trunk/ Cleanup of comments.