Because of this kvtophys() of wired pages did set the leftmost bit, causing
the pager to hang while swapping. This is now fixed by using another
free bit in the PTE as wired bit instead.
This fixes PR#11121.
Many thanks to Chuck Silvers that found what the problem was!
the UPC driver needs to know whether the system's got an IOEB in it.
The way this is implemented is a mess -- I need to get my mind round
autoconfiguration again.
when deallocating a fragment that has not made it to disk yet.
Also, during dirops, give the directory vnode an extra reference in
SET_DIROP, to ensure its continued existence during SET_ENDOP, preventing
a possible NULL-dereference there.
These two changes should close PR #11064.
serial console even if the PROM uses bitmap console.
- Remove zs_hwflags since news68k does not have keyboard nor mouse at zs;
check zschan address set in zscninit() to detect console device.
- Use BPS_TO_TCONST() to set baudrate in zs_init_reg[].
- Remove zs_get_chan_addr(), which is not needed anymore.
when sharing an interrupt with other devices:
check sc->sc_enabled, and drop the interrupt if its' off.
Also check for IFF_RUNNING, on advice of Enami Tsugotomo.
without MII. It supports 100BaseTX only. Half duplex/Full duplex can
be specified manually, but there are no auto negotiation functionality.
XXX: It takes 34 seconds before sending/receiving packets on the wire
after initial setup. It is obviously a bug because the board
just works fine on NEWS-OS, but I cannot find what's wrong...
Once it starts working, it seems there are no problems.
for each driver to indicate the interrupt has been handled or not.
add prototype of apbus_dmatag_init() function, which allocates memory
and initialize its member including bus space handle to flush DMA write
cache. Note that the allocated pointer must be freed.
Clear interrupt mask for specified interrupt in apbus_intr_establish().
Add dma stuff; define apbus_dmamap_sync() to flush DMA write cache by
accessing the corresponding I/O port.
does nothing useful at this moment - initailize the chip, that's all.
TODO: crypto logic framework in kernel (see openbsd sys/crypto)
TODO: ipsec frontend (need major rework in ipsec tree - should start with busywait)
TODO: character device frontend
it and free it as appropriate. Activate p2's new address space once
it references p1's.
- uvm_fork(): Make sure the child's vmspace is NULL before calling
uvmspace_share() (the child doens't have one already in this case).
These changes do not change the behavior for the current use of
uvmspace_share() (vfork(2)), but make it possible for an already
running process (such as a kernel thread) to properly attach to
another process's address space.
to the contents of the hint in the map, and the hint saved in the
map only if the two values match. When an unconditional save is
required, the "check" value passed should be map->hint (and the
compiler will optimize the test away). When deleting a map entry,
the new SAVE_HINT() will only change the hint if the entry being
deleted was the hint value (thus preserving any meaningful hint
that may have been there previously, rather than stomping on it).
- Add a missing hint update when deleting the map entry in
uvm_map_entry_unlink(). This is the fix for kern/11125, from
ITOH Yasufumi <itohy@netbsd.org>.
TULIPF_BLE /* data is big endian */
TULIPF_DBO /* descriptor is big endian */
These setting is required for Big-endian bus front-end (such as APbus for
newsmips) to work with tulip. Also,
sc_maxburst
member is added to the tulip_softc to limit the maximum burst length.
This member defaults to zero which means no restriction for burst length.
pmap_enter() cannot allocate the segmap return failure if PMAP_CANFAIL
instead of sleeping. Otherwise panic. Both alpha and i386 do this. Do
not pmap_enter_pv() until after this is done so the data structures are
not partially allocated. This should prevent pmap_page_protect() from
getting stuck when called from pagedaemon.
thorpej