other requests will get through and the mount point will be effectively dead.
This could happen for mounts using TCP and -i and/or -s.
* Reserve enough space for UDP sockets. Fixes PR 3008, from Naofumi Honda.
(1): "substart == ex->ex_end" and "subend == ex->ex_start"
are completely legal parameters for extent_alloc_subregion()
(2): "(subend - substart) + 1" can cause an overflow if the whole
numeric range is covered by the extent.
Submitted by Matthias Drochner <drochner@zelz26.zel.kfa-juelich.de>
in PR #3119.
non-existent file and the end of the pathname is reached, and this `current'
directory resides on a read-only mounted file system, don't update/prepare
its inode for the actual operation but return EROFS.
Frodo ASIC, originally contributed by Mike Smith
<mike@pressed.spam.frisbee.net.au>, but reworked by me to:
- Essentially duplicate the dca driver, modifiying where necessary
to work with the APCI.
- Deal with the different Frodo autoconfiguration model.
- Don't attach a tty to the 0th UART - it's not really useful for much
more than the Domain keyboard.
- Added a routine to check for the existence of a DCA at select code 9.
On most models, the 1'th UART is mapped to select code 9 by the PROM,
and on these models, we do _NOT_ want to attach the device as an APCI.
However, on the 425e, this mapping does not take place, so we attach
as an APCI. The 2'th and 3'th UARTs always get tty instances.
- Add console support which will only be invoked on the 425e (i.e. check
for DCA at 9, and defer console to it if it exists).
the machine, rather than simply returning to the assembly NMI handler.
Previously, the assembly handler would simply jump back to begin:, which
would frob the stack, and re-clear the BSS. However, this is not sufficient,
as there may be state in initialized data that must be restored. Thus,
the only reasonable solution is to re-load the boot block.
by me. This driver should only be invoked when there are no other
suitable console devices present in the system. This situation currently
exists on the 425e, for which we do not have a frame buffer driver,
and who's PROM does not map the second APCI UART to select code 9,
like is done on the 4{00,25,33}{t,s}.
augustss