transfer type, nak throttling should be enabled from the veiwpoint that
avoids the memory thrashing. Fixes a problem that interrupt transfer stall
on some EHCI controllers (e.g. Geode LX). Fixed by Yamada Katsumi.
- update the linux syscall table for each platform.
- support new-style (NPTL) linux pthreads on all platforms.
clone() with CLONE_THREAD uses 1 process with many LWPs
instead of separate processes.
- move the contents of sys__lwp_setprivate() into a new
lwp_setprivate() and use that everywhere.
- update linux_release[] and linux32_release[] to "2.6.18".
- adjust placement of emul fork/exec/exit hooks as needed
and adjust other emul code to match.
- convert all struct emul definitions to use named initializers.
- change the pid allocator to allow multiple pids to refer to the same proc.
- remove a few fields from struct proc that are no longer needed.
- disable the non-functional "vdso" code in linux32/amd64,
glibc works fine without it.
- fix a race in the futex code where we could miss a wakeup after
a requeue operation.
- redo futex locking to be a little more efficient.
reworked by me to support 32-bit processes as well.
we now keep %fs and %gs loaded with the user values
while in the kernel, which means we don't need to
reload them when returning to user mode.
move the "old" value to %*ax so that cmpxchg* can work.
remove the PCB_ONFAULT stuff, onfault_handler() handles this already.
return the error from fault handler in ucas_fault rather than forcing EFAULT.
Add MI flags PMAP_WRITE_COMBINE, PMAP_WRITE_BACK, PMAP_NOCACHE_OVR.
Update pmap(9) manpage.
hppa: Remove MD PMAP_NOCACHE flag as it exists as MI flag
mips: Rename MD PMAP_NOCACHE to PGC_NOCACHE.
x86: Implement new MI flags using Page-Attribute Tables.
x86: Implement BUS_SPACE_MAP_PREFETCHABLE.
Patch presented on tech-kern@:
http://mail-index.netbsd.org/tech-kern/2010/06/30/msg008458.html
No comments on this last version.
Forgot to commit this in previous.
Add MI flags PMAP_WRITE_COMBINE, PMAP_WRITE_BACK, PMAP_NOCACHE_OVR.
Update pmap(9) manpage.
hppa: Remove MD PMAP_NOCACHE flag as it exists as MI flag
mips: Rename MD PMAP_NOCACHE to PGC_NOCACHE.
x86: Implement new MI flags using Page-Attribute Tables.
x86: Implement BUS_SPACE_MAP_PREFETCHABLE.
Patch presented on tech-kern@:
http://mail-index.netbsd.org/tech-kern/2010/06/30/msg008458.html
No comments on this last version.
Catch and report unhandled exceptions before they propagate to C land
The C++ interface to run test cases goes like this:
1) C++ run function -> 2) C run function -> 3) C++ wrapper for
test case -> 4) test case head/body/cleanup
The previous code caught and reported unhandled exceptions in 1).
However, such approach does not seem to work everywhere. It fails,
for example, in NetBSD/i386 but works in NetBSD/amd64. I am not sure
which platform implementation is correct nor if there even _is_ a
defined behavior. No matter what, it feels wrong and clunky.
Move the last-resort exception catching to happen in 3) so that
exceptions don't propagate back to C.
Fixes the test-programs/result_test:result_exception test case in
NetBSD/i386 5.99.34.
