of not clearing the flags for execv() syscall will result that a new
program runs in KSE thread mode without enabling it.
Submitted by: tjr
Modified by: davidxu
fixes was applicable to HEAD, originally it was thought this
should only be done in RELENG_4. Implement IO_INVAL in the vnode
op for writing by marking the buffer as "no cache". This fix
has already been applied to RELENG_4 as Rev. 1.65.2.15 of
ufs/ufs/ufs_readwrite.c.
Reviewed by: alc, tegge
Split the baby. For idepci devices, now both legacy mode bits need
not be set. We can run an idepci in a split mode. However, it only
works better than before, not works. It works better in that when one
device is legacy and the other isn't and disabled, we now operate
correctly.
sos submitted a version of this patch.
subclass, progif and revid. While these are typically read
only fields, they aren't always read-only. progif is writable
for ata devices, for example. It does no harm when they are
read only, and helps when they aren't.
to try to allocate things on my parent can be taken out. It duplicates code.
Also, add comment about why the power state stuff is here (type 2
devices don't participate in the power state save/restore due to
larger Bx issues).
chattiness was left in for debugging, but now that nearly all of the
problems relating to the changes have been fixed, it is only annoying. It
is still available via bootverbose.
Prodded by: jhb
use fseeko(3) instead.
This commit fixes breakage when `lastcomm matchstring` is run.
PR: bin/66765, bin/64568
Submitted by: Dan Nelson <dnelson at allantgroup.com>
threatened in rev.1.10 of usr.sbin/kgmon/kgmon.c more than 2 years ago.
kgmon has been recovering from the missing initialization for too
long, but the fixup there is ifdefed for i386's and shouldn't be
needed for other arches.
high resolution kernel profiling (options GUPROF. "U" in GUPROF stands
for microseconds resolution, but the resolution is now smaller than 1
nanosecond on multi-GHz machines and the accuracy is heading towards
1 nanosecond too). Arches that support GUPROF must now provide certain
macros for the calibration. GUPROF is now only supported for i386's,
so the absence of the new macros for other arches doesn't break anything
that wasn't already broken. amd64's have uncommitted support for
GUPROF, and sparc64's have support that seems to be complete except
here (there was an #error for non-i386 cases; now there are undefined
macros).
Changed the asms a little:
- declare them as __volatile. They must not be moved, and exporting a
label across asms is technically incorrect, so try harder to stop gcc
moving them.
- don't put the non-clobbered register "bx" in the clobber list. The
clobber lists are still more conservative than necessary.
- drop the non-support for gcc-1. It just gave a better error message,
and this is not useful since compiling with gcc-1 would cause thousands
of worse error messages.
- drop the support for aout.
