`struct vmspace' has a new field `vm_minsaddr' which is the user TOS.
PS_STRINGS is deprecated in favor of curproc->p_pstr which is derived
from `vm_minsaddr'.
Bump the kernel version number.
now makes use of lockmgr(). Since we broke into the debugger from an interrupt,
we don't have a curproc, so when lockmgr() tries to find our PID it barfs,
causing another break into DDB which then calls the mysterious code that
calls lockmgr() again.....
So set doing_shutdown while we're in DDB so lockmgr ignores locks.
grf-type consoles (wscons). Config_console() is now called from consinit(),
just after setting up the kernel msgbuf, so debugging is easy(er).
To further facilitate this move, the pcibus now allows for early-console
attaches by allocating static bus_space_tags (no mallocs possible at this
point).
can not cross a page boundary. This fixes a problem when a dump(8) buffer
just crossed a page boundary and bus_dmamap_load() would coalesce the
the overlap onto the first segment. The NEXTPTR value would get set to
-1 when starting the DMA transfer and the residual data for unaligned
transfers would be copied to physical address 0x1ffffffc. On the R3000,
this would result in corrupted data, and on the R4000 would usually result
in a hard system hang.
both the primary and the secondary caches. MachFlushDCache() will not
invalidate the correct secondary cache lines for KSEG2 addresses.
R4000 systems should now be able to boot and run.
unaligned transfers and adjust the physical address to align the transfer.
If the buffer end just crossed the page boundary, the computation of the
NEXTPTR physical address resulted in using -1. The cleanup at the end of
the DMA transfer would try to copy the residual data to physical address
0x1ffffffc. This would silently corrupt data on the R3000 and usually
would hang the R4000.
eeh