Subversion Repositories HelenOS

Rev

Show changed files | Details | Compare with Previous | Blame | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
4692 5503 d 3 h svoboda /branches/tracing/ Merge trunk changes up to r4686.  
3624 5772 d 11 h svoboda /branches/tracing/kernel/ Move debbuging-related as functions to a separate module.  
3431 5840 d 1 h svoboda /branches/tracing/kernel/ Add configuration option CONFIG_UDEBUG to compile udebug in the kernel or not.  
3425 5840 d 13 h svoboda /branches/tracing/ Merge latest trunk changes into tracing (broken)  
3036 5947 d 6 h svoboda /branches/tracing/kernel/generic/ Make sure area written by debugger is private and anonymous by copying it, if necessary. (Not atomic atm)  
3013 5951 d 14 h svoboda /branches/tracing/kernel/generic/ Bypass area write-protection for udebug memory writes.  
2787 6013 d 6 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2745 6042 d 11 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2556 6193 d 12 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2183 6370 d 6 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.		  
2170 6375 d 0 h jermar /trunk/kernel/ Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.

Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary.		  
2142 6378 d 7 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6423 d 0 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6423 d 3 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2107 6431 d 1 h jermar /trunk/ When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.

Formating and indentation fixes.		  
2106 6431 d 9 h jermar /trunk/kernel/ Merge as_t structure into one and leave the differring parts in as_genarch_t.

Indentation and formatting changes in header files.		  
2094 6436 d 5 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6436 d 5 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6437 d 9 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 6448 d 2 h jermar /trunk/ (c) versus (C)  

←Prev12Next→

Show All