The change adopts the idea of fxp to drop the incoming packet and panic
if the old mbuf cannot be reloaded. Since the bus_dmamap is allocated
during attach, this is not supposed to happen. Since a lot of code moves
anyway, factor out the allocation of RX ring elements, which is shared
between the init path and the RX interrupt path.
XXX A better fix might be to borrow the mbuf from the logic end of the
XXX ring buffer, but that needs more involved driver changes.
Reviewed by dyoung@ and nick@
- Note that mouse events are returned in struct wscons_event via read(2).
XXX: We should have complete descriptions about struct wscons_event
XXX: and WSMOUSEIO ioctls defined in <sys/dev/wscons/wsconsio.h> here.
any threads are created turned out to be not such a good idea.
there are stronger requirements on what has to work in a forked child
while a process is still single-threaded. so take all that stuff
back out and fix the problems with single-threaded programs that
are linked with libpthread differently, by checking if the library
has been started and doing completely different stuff if it hasn't been:
- for pthread_rwlock_timedrdlock(), just fail with EDEADLK immediately.
- for sem_wait(), the only thing that can unlock the semaphore is a
signal handler, so use sigsuspend() to wait for a signal.
- for pthread_mutex_lock_slow(), just go into an infinite loop
waiting for signals.
I also noticed that there's a "sem2" test that has never worked in its
single-threaded form. the problem there is that a signal handler tries
to take a sem_t interlock which is already held when the signal is received.
fix this too, by adding a single-threaded case for sig_trywait() that
blocks signals instead of using the userland interlock.
build when EXEC_AOUT is not defined, the syscalls.master entry has to be
conditionalized. Alpha did so already, so let the other archs catch up
with it.
Go-on: christos
This is reported by Dave Huang on lib/25795,
MORIYAMA Masayuki <msyk _at_ mtg.biglobe.ne.jp> and
"NARUSE, Yui" <naruse _at_ airemix.com>, and fixed by MORIYAMA-san.
character area.
This is reported by MORIYAMA Masayuki <msyk _at_ mtg.biglobe.ne.jp> and
"NARUSE, Yui" <naruse _at_ airemix.com>, and fixed by MORIYAMA-san.
Changes since 4.13:
* DragonFly ELF note support
* read buffer dynamically allocated
* Add -h flag and dereference symlinks if POSIXLY_CORRECT
* Avoid search and regex buffer overflows
* cross-compilation fixes
* don't close stdin in the library.
* search for elf notes in shared libraries too.
Now with more magic than ever before!
