easier to do it there rather than mess with config_interrupts()).
From kiyohara@. Discussed with drochner@, who pointed out that pcmcia
drivers are expected to attach with interrupts enabled.
so check for a non-NULL configuration descriptor before dereferencing.
Should fix a crash reported by Nicolas Joly per PR kern/41048.
(It still doesn't look good that the ioctl which unconfigures the device
returns EIO -- either it is legitimate or it isn't -- but since this
is a pullup candidate I don't dare to change user visible behaviour.)
z8530sc.c:
Check pending interrupts in a loop until all requests are handled.
The old comments said it would cause horrible latency to sun3x floppy etc,
but serial ports should have higher priority than disks anyway.
z8530tty.c:
Don't enable and disable TX interrupts on each transmit start and completion
because it could cause possible race conditions.
Instead, set ZSWR0_RESET_TXINT on each TIE interrupt to clear the request
as other kbd drivers attached at zs(4).
Tested on cobalt, macppc, news68k, sparc, and sun3.
to memcpy(). Work around that by using a local variable instead.
(This looks a bit dubious, but who am I to judge the restrictions
in the standalone environment on the vax -- this should not change
the semantics of what was here before.)
implementation of bcopy() needs to become memcpy() as well. The
simpler local implementation is needed so that the boot code doesn't
overflow the available space.
call in addition to the old rump_mnt_mount(). Some issues remain
(but require more deeprooted changes):
* it is possible to mount only to /
* unmount needs MNT_FORCE due to the new fs being root and having
a bonus reference
* cwdi is not set (since there is no concept of a process)
registers. if we faulted trying to set them, just fall into
"we_re_toast", and arrange for a SEGV to be delivered to the
userland process. fixes kernel mode faults.
from andrew doran.
that Juergen Hannken-Illjes reports:
sys/arch/i386/conf/MONOLITHIC:16: already have options `COMPAT_NOMID'
sys/arch/i386/conf/MONOLITHIC:17: already have options `COMPAT_09'
...
