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
4692 5422 d 16 h svoboda /branches/tracing/ Merge trunk changes up to r4686.  
3624 5692 d 0 h svoboda /branches/tracing/kernel/ Move debbuging-related as functions to a separate module.  
3431 5759 d 14 h svoboda /branches/tracing/kernel/ Add configuration option CONFIG_UDEBUG to compile udebug in the kernel or not.  
3425 5760 d 2 h svoboda /branches/tracing/ Merge latest trunk changes into tracing (broken)  
3036 5866 d 19 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 5871 d 3 h svoboda /branches/tracing/kernel/generic/ Bypass area write-protection for udebug memory writes.  
2787 5932 d 19 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2745 5962 d 0 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2556 6113 d 1 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2183 6289 d 19 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 6294 d 13 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2142 6297 d 20 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6342 d 13 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6342 d 15 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2107 6350 d 14 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 6350 d 22 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 6355 d 18 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6355 d 18 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6356 d 22 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 6367 d 15 h jermar /trunk/ (c) versus (C)  

←Prev12Next→

Show All