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
2183 6269 d 4 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 6328 d 5 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2109 6329 d 8 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 6336 d 7 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2087 6337 d 2 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6346 d 23 h jermar /trunk/ (c) versus (C)  
2050 6376 d 10 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2048 6379 d 1 h jermar /trunk/ Formatting and indentation changes.  
2042 6381 d 3 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again		  
2041 6381 d 4 h decky /trunk/kernel/generic/src/proc/ revert 2040  
2040 6381 d 6 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2039 6381 d 7 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2035 6382 d 5 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2000 6397 d 9 h decky /trunk/kernel/ move files to more proper locations  
1880 6475 d 23 h jermar /trunk/ Small improvements here and there.  
1864 6482 d 20 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 6512 d 4 h decky /trunk/kernel/generic/ finish security context isolation  
1820 6519 d 21 h decky /trunk/kernel/generic/ initial security context support  
1787 6537 d 2 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6544 d 3 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 6558 d 8 h jermar /kernel/trunk/ Cleanup of comments.  
1735 6560 d 9 h decky /kernel/trunk/ make kernel prints case consistent  
1702 6565 d 5 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1687 6568 d 6 h jermar /kernel/trunk/generic/src/proc/ Fix double thread_join() in ktaskgc.
In thread_create(), lock TASK with interrupts disabled again.
thread_join_timeout() can use ordinary waitq_sleep_timeout().		  
1684 6568 d 10 h jermar /kernel/trunk/ #ifdef more debugging printf()'s.  
1676 6569 d 6 h jermar /kernel/trunk/generic/src/proc/ Forgotten interrupts_restore().  
1661 6570 d 11 h jermar /kernel/trunk/generic/ Collect Undead threads while waiting to join uinit.
Rename ktaskkill to ktaskgc.		  
1636 6571 d 19 h jermar /kernel/trunk/ Move comment.

Do TLB shootdown also when allocating new ASID.		  
1600 6572 d 11 h jermar /kernel/trunk/generic/src/proc/ Prevent task killing of kernel by returning EPERM on such a request.  
1597 6572 d 12 h palkovsky /kernel/trunk/ Added possibility to interrupt task at exit from interrupt routine.  
1589 6573 d 1 h jermar /kernel/trunk/generic/src/ Improve comments regarding liveliness of threads and tasks.  
1588 6573 d 2 h jermar /kernel/trunk/generic/src/ In task_kill(), remove the task from the tasks_btree before proceeding.
Thus, when the kernel finds the task in the tasks_btree and locks it before
releasing tasks_lock, it is guaranteed that the task will not be destroyed
until the lock is held. If the kernel needs to unlock the task, do some operation
and lock it again, it should increase its refcount before doing so. In that case,
when releasing the lock, it must decrement the refcount and if it reaches
zero, it must call task_destroy().		  
1587 6573 d 3 h jermar /kernel/trunk/ task_destroy() implementation, fixes in as_destroy() and task_kill().
This is the first version of HelenOS that would perform complete cleanup leading from thread to destruction of address space.		  
1585 6573 d 6 h jermar /kernel/trunk/generic/ Kill task when its main thread exits.  
1583 6573 d 9 h jermar /kernel/trunk/generic/ Make ktaskclnp call ipc_cleanup and futex_cleanup.  
1580 6573 d 12 h jermar /kernel/trunk/generic/src/ Update for task_kill().  
1579 6573 d 22 h jermar /kernel/trunk/generic/ Framework for task_kill().
Some pieces (e.g. implementation of ktask_cleanup() kernel thread and
task_destroy() function) are missing.
Changed locking order for task lock, threads_lock and thread lock from
threads_lock, thread lock, task lock to task lock, threads_lock, thread lock.		  
1573 6574 d 3 h palkovsky /kernel/trunk/generic/ Renamed some things in IPC to be consistent.
Added ipc reporting to kconsole.		  
1468 6578 d 4 h jermar /kernel/trunk/ Function for destroying address space for which there is no other reference in the kernel.  
1460 6578 d 7 h jermar /kernel/trunk/generic/ Reference counting for futexes.