retry timed out IPIs, complain and dump timing info into dmesg
ok martin@

Basically revert r1.246 of locore.s and r1.73 of vm_machdep.c:

Remove special case handling for userland lwps from cpu_lwp_fork,
instead do it in lwp_trampoline when we first return to userland.

Basically revert r1.246 of locore.s and r1.73 of vm_machdep.c:

Remove special case handling for userland lwps from cpu_lwp_fork,
instead do it in lwp_trampoline when we first return to userland.

which was a stupid idea - since we did now set all fork child's %tstate
(and thus %pstate when back in userland) to the current kernel's userland
default. This meant we lost the address mask bit for 32bit processes and
all memory model details for 64bit ones.

Move it back to cpu_lwp_fork and fix the condition to only do it once when
forking init.

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Remove unused variable

Remove COMPAT_SA / KERN_SA. Welcome to 6.99.3!
Approved by core@.

Fix namespace confilicts membar_ops(3) vs. macros for SPARC V9
membar instructions.

#include <sys/bus.h> instead of <machine/bus.h>.

Allow storing and receiving the LWP private pointer via ucontext_t
on all platforms except VAX and IA64. Add fast access via register for
AMD64, i386 and SH3 ports. Use this fast access in libpthread

Allow storing and receiving the LWP private pointer via ucontext_t
on all platforms except VAX and IA64. Add fast access via register for
AMD64, i386 and SH3 ports. Use this fast access in libpthread to replace
the stack based pthread_self(). Implement skeleton support for Alpha,
HPPA, PowerPC, SPARC and SPARC64, but leave it disabled.

Ports that support this feature provide __HAVE____LWP_GETPRIVATE_FAST in
machine/types.h and a corresponding __lwp_getprivate_fast in
machine/mcontext.h.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

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Make vmapbuf() return success/error and make physio deal with a
failure.

Copy PK_32 to p2->p_flag instead of doing it in the cpu_proc_fork hook.

Retire struct user, remove sys/user.h inclusions. Note sys/user.h header
as obsolete. Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.

remove an XXX comment.

Use lwp_getpcb() on sparc{64} and sun2/3 MD code, clean from struct user usage.

Add a flags argument to pmap_kenter_pa(9).
Patch showed on tech-kern@ http://mail-index.netbsd.org/tech-kern/2009/11/04/msg006434.html
No objections.

cpu_setfunc() can not use lwp_trampoline, as that has additional lwp startup
semantics. Use a simpler setfunc_trampoline instead.

Deja Vu: when preparing the initial trap frame for a new forked lwp,
explicitly clear condition code. Otherwise we might catch a signal
(handlers are inherited from the parent) before we ever return

Deja Vu: when preparing the initial trap frame for a new forked lwp,
explicitly clear condition code. Otherwise we might catch a signal
(handlers are inherited from the parent) before we ever return to
userland. The current trapframe is converted into a ucontext and after
the signal handler returns, the lwp stays in userland and directly
uses the ucontext to return to the fork call.
Fixes PR 41302.

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ANSIfy functions with function-pointer arguments

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

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Make the emulations, exec formats, coredump, NFS, and the NFS server
into modules. By and large this commit:

- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds

Make the emulations, exec formats, coredump, NFS, and the NFS server
into modules. By and large this commit:

- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime

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Avoid code duplication: make cpu_lwp_fork() use cpu_setfunc(). Leave
the inlinig to the compiler. Suggested by Nick Hudson.

resurrect cpu_setfunc(), adapted to new world order.

Remove unnecessary includes.

Switch fpstate buffer allocation from malloc to pool_cache.

Ok by martin@.

Fix a race condition in IPI handlers of save/drop fpstate, from OpenBSD.
Reported and tested by martin@.

Improve FPU state save/clear like x86, idea from OpenBSD.

Get rid of the IPI simple_lock.