to allow this exception so that accurate tuning of delay() can be
done (i.e. avoiding VIA-related wait states and cache effects as
much as possible).
XXX During this narrow window, it is still conceivable that we could
get interrupts from devices other than the VIA timer. Normally this
shouldn't be a problem because interrupt handlers should generally
not be registered until we get to autoconfig. It is, however, a
potential pitfall to be aware of.
any longer, we can finally avoid enabling interrupts until the
end of cpu_configure(). This resolves a long-standing issue that
has caused us trouble several times in the past.
"found" case. This information is important for msdosfs_rename(),
when the target filename is "long" and the file exists -
it gets unlinked and the entries are re-used, but if de_fndcnt was
left zero, createde() thinks there are no entries to store the
long filename of moved file and long filename is "lost".
Fixes PR #5468 by Dave Huang <khym@bga.com>.
Tested by: jdolecek
Reviewed by: Wolfgang Solfrank
* Put the aliases in a separate file, referenced by $ENV, so that they're
present in subshells.
* Do the same to make `set -o emacs' happen automatically in interactive
shells. (Yay, line editing by default!)
* Use `export FOO=bar' syntax, as it's shorter and other sh(1)-like shells
all support it these days.
don't panic if maxlen == 0, just return ENAMETOLONG.
treat maxlen as unsigned like the manpage indicates.
avoid crashing if the userspace address is >= KERNBASE.
make sure *done is 0 when no bytes are copied.
is found not fully upward compatible to its predecessor. sfbp.c is now
under development.
- Reduce copycols() malfunction, but has still lot of troubles.
- Be more conservative when resetting the interface after a transmit error.
It caused the interface to totally wedge on the (somewhat common) transmit
FIFO underrun condition.
cache. With secondary cache, the CPU will detect cache coherency errors
and the Virtual Coherency Exception handler will flush the appropriate
cache lines to maintain cache coherency. This allows much better
performance than inhibiting the cache for the entire page. This is
very noticable when shared library mappings occur with incompatible
mappings, since there's a very likely chance the mappings will remain
for long periods of time. Systems without secondary cache will still
have the cache inhibited, so there will still be performance issues if
shared libraries don't get mmaped() on correct memory alignments.
This fixes the current problems on DECstations using the R4x00 getting
coredumped programs.
thorpej