pmap_zero_page() and pmap_zero_page_area() were modified to accept
a struct vm_page * instead of a physical address, vm_page_zero_fill()
and vm_page_zero_fill_area() have served no purpose.
to fail needlessly if a reverse DNS lookup of the IP address didn't
come up with a hostname. As a comment in the code clearly stated,
the "damn hostname" was looked up only for the purpose of netgroup
matching. But if that lookup failed, the function bailed out
immediately even though in many cases netgroup matching would not
be used.
This change marks the hostname as unknown but continues. Where
netgroup matching is performed, an unknown hostname is handled
conservatively. I.e., for "+@netgroup" (accept) entries an unknown
hostname never matches, and for "-@netgroup" (reject) entries an
unknown hostname always matches.
In the lines affected (only), I also fixed a few bogus casts. There
are others, and in fact this entire file would be a good candidate
for a cleanup sweep.
Reviewed by: imp (wearing his flourescent yellow Security Team cap)
MFC after: 2 days
a pointer to a symbol is given and we have to find the containing symbol
table. We do this by bounds checking. For some strange reason (ie I
haven't found the root cause) the first test succeeded for said symbol,
implying that the symbol came from the .dynsym table. In reality however
the symbol actually resided in the .symtab table. Needless to say that
all that was returned was junk.
The upper bounds check was: (symptr - baseptr) < symtab_size
This has been rewritten to: symptr < (baseptr + symtab_size)
As a side-effect, slightly more optimal (and still correct :-) code can
be generated on ia64.
some circumstances when we get a select collision, we can end up with
cases where we do not clear some sip->si_thread on the way out, leading to
page faults in selwakeup(). This should solve the problem where postfix
can crash the kernel during select collisions.
Reviewed by: alfred
This state is to allow some experimentation and not YET used..
The theory is that a thread that is about to sleep is placed on the sleep
queue and then discovers it should suspend, and is placed on suspend queue.
(these are separate queues and it can be on both). It will not become runnable
until it has been removed from BOTH queues. i.e. a wakeup event
has occured AND the process has been unsuspended. If it were not on the sleep
queue when suspended, then the (possibly only) wakeup event might arrive and
not find any process to wake up. this would result in the thread
sleeping 'forever' when the suspension is lifted. This state will
transition to one of TDS_SLP or TDS_SUSPENDED, depending upon which
constraint is lifted first.
o Move mode_t details from <sys/types.h> into <sys/_types.h>.
o Add primitives for sharing the mode_t and off_t typedefs.
o Add typedefs mode_t, off_t, and size_t to <sys/mman.h>.
PR: 21644
These types are unlikely to ever become very MD. They include:
clockid_t, ct_rune_t, fflags_t, intrmask_t, mbstate_t, off_t, pid_t,
rune_t, socklen_t, timer_t, wchar_t, and wint_t.
While moving them, make a few adjustments (submitted by bde):
o __ct_rune_t needs to be precisely `int', not necessarily __int32_t,
since the arg type of the ctype functions is int.
o __rune_t, __wchar_t and __wint_t inherit this via a typedef of
__ct_rune_t.
o Some minor wording changes in the comment blocks for ct_rune_t and
mbstate_t.
Submitted by: bde (partially)
