- Move loader relocation up to 0x1C00000. This is in line with OSX bootx,
and allows more space for boot-time modules/ramdisks without conflicting
with OpenFirmware's use of RAM
- OpenFirmware returns overlapping memory regions. Use a simple
brute force algorithm to merge these into non-overlapping
regions. This fixes bugs in reporting of available memory
and also prevents pages from being added twice in the VM system.
such that 'ispcvt' can build. Unforunately 'ispcvt' is needed in order for
/etc/rc.d/syscons to run. This fixes the bug where I could not get my
keymap effective at boot.
likely to be non-zero. When leaving the cancellation point, check
the return value against -1 to see if cancellation should be
checked. While I'm here, make the same change to connect() just
to be consisitent.
Pointed out by: davidxu
turnstile_unpend(). A racing thread that does not have TDI_LOCK set may
either be running on another CPU or it may be sitting on a run queue if it
was preempted during the very small window in turnstile_wait() between
unlocking the turnstile chain lock and locking sched_lock.
case of a turnstile having no threads is just one instance of the more
general case where the thread we are examining has been partially awakened
already in that it has been removed from the turnstile's blocked list but
still has TDI_LOCK set. We detect that case by checking to see if the
thread has already had a turnstile reassigned to it.
reboot, as calling OF_exit() just hangs a mac.
FreeBSD on my G4 800Mhz mac behaves identically to OSX for halt
and reboot now.
Reviewed by: grehan (who also supplied the concept and sample code)
Not all transfers between kernel and user space are byte oriented
and thus alignment safe. Especially fuword*() and suword*() are
sensitive to alignment but in general more optimal than block copies.
By catching the misalignment trap we avoid pessimizing the common
case of properly aligned memory accesses which we would do if we
were to use byte copies or adding tests for proper alignment.
Note that the expectation that the kernel produces aligned pointers
is unchanged. This change therefore relates to possible unaligned
pointers generated in userland.
then immediately terminate the shell (during boot this
also terminates the parent rc(8) shell). This was the pre-rcNG behaviour.
Also, remove an extraneous mount /.
PR: conf/57659
Submitted by: yar (with modifications)
versions of the firmware. It responds more slowly to commands, and we
bogusly failed them. We assume that all versions of the intersil
firmware before 1.0 are 10 times slower and will give it 10x the time
to finish.
# for 5.2 we should always just assume 5s.
