pmap_enter() will get called trying to wire an already wired page again
if sysctl() is called. To avoid a panic the "wired" check is moved after
the double-mapping check.
Because of this kvtophys() of wired pages did set the leftmost bit, causing
the pager to hang while swapping. This is now fixed by using another
free bit in the PTE as wired bit instead.
This fixes PR#11121.
Many thanks to Chuck Silvers that found what the problem was!
pseudo-device pty 2 # pseudo-terminals (Sysinst needs two)
(Some installers may not be using sysinst, in which case this just reduces
the number of ptys from 16 that are not used to 2 that are not used)
For i386 conf files, no change other than comments.
based on it working already for macppc.
Also add commented out:
#options VNODE_OP_NOINLINE # Don't inline vnode op calls
#options NFS_V2_ONLY # Exclude NFS3 and NQNFS code
as suggestions for additional savings
maps standard boot flags to corresponding RB_* values
use BOOT_FLAG() in port's MD code as appropriate
as discussed on tech-kern, add new boot flags -v, -q for booting
verbosely or quietly, and corresponding AB_VERBOSE/AB_QUIET
boot flags; also add FreeBSD-compatible bootverbose macro and
NetBSD-specific bootquiet macro
for hpcmips, use new bootverbose instead of it's own hpcmips_verbose
Tested on i386, and to limited extend (compile of affected files) also for
mvme68k, hp300, luna68k, sun3.
routine. Works similarly fto pmap_prefer(), but allows callers
to specify a minimum power-of-two alignment of the region.
How we ever got along without this for so long is beyond me.
never got the wired bit set. This caused panics if a swapped out process
was swapped in again and the kernel stack had not yet been unmapped.
While here, add a forgotten lock initializer.
locked, cpu_exit needs to do that too. Since in the lock debug case we
have to use a CALLS which wipes out R0-R6, change the convention for Swtch
so that the proc is passed in R6 and that R6 is clobbered. This is so
Swtch itself doesn't have to save/restore the proc pointer explicitly.
- MB_LEN_MAX is increased to 32.
- To ensure binary compatibility for old executables
under multibyte locale, versioned setlocale is added.
- __mb_len_cur definision is added in setlocale.c
and enable it in stdlib.h .
It is also important for multibyte locale stuffs,
but I just forgot.
This may happen on machines missing parts of the instruction set (like
some floating point formats).
Only one new instruction added; POLYD, so that the libm assembly files can
be used on architectures missing that instruction.
Also; include emulation code if compile-time option INSN_EMULATE is defined
instead of trying to match on which cputype it is.
N.B. POLYD isn't fully implemented, just enough to make libm happy.
matt