"[...] and removes the hostcache code from standard kernels---the
code that depends on it is not going to happen any time soon,
I'm afraid."
Time to clean up.
conf/files) and as a result appears to have been missed in the bulk
KSE update of drivers. This change replaces references to proc
with thread. It has not been compile-tested.
file EOF. This works around a bug in the ISOFS (CDRom) BMAP code which
returns bogus values for requests beyond the file EOF rather then returning
an error, resulting in either corrupt data being mmap()'d beyond the file EOF
or resulting in a seg-fault on the last page of a mmap()'d file (mmap()s of
CDRom files).
Reported by: peter / Yahoo
MFC after: 3 days
no emulation mode. Unlike other BIOS devices, this device uses 2048 byte
sectors. Also, the bioscd driver does not have to worry about slices
or partitions.
in wdrain during a write. This flag needs to be used in devices whos
strategy routines turn-around and issue another high level I/O, such as
when MD turns around and issues a VOP_WRITE to vnode backing store, in order
to avoid deadlocking the dirty buffer draining code.
Remove a vprintf() warning from MD when the backing vnode is found to be
in-use. The syncer of buf_daemon could be flushing the backing vnode at
the time of an MD operation so the warning is not correct.
MFC after: 1 week
- nuke all debug printfs, which are unneeded by now.
- get rid of #ifdef IPSEC_DEBUG in headers
- now that key_debug_level is always defined, there's no need for
#ifdef IPSEC_DEBUG around sysctl MIB code (net.key.debug).
- switch all debug printf() to ipseclog().
Obtained from: KAME
MFC after: 1 week
actually the address of the function descriptor. The fdesc has both
the address of the function and it's corresponding gp value. Now
that we have a gp value, use it instead of passing 0.
structure changes now rather then piecemeal later on. mnt_nvnodelist
currently holds all the vnodes under the mount point. This will eventually
be split into a 'dirty' and 'clean' list. This way we only break kld's once
rather then twice. nvnodelist will eventually turn into the dirty list
and should remain compatible with the klds.
that a buffer's b_blkno would be valid. This is true when vmiodirenable
is turned off because the B_MALLOC'd buffer's data is invalidated when
the buffer is destroyed. But when vmiodirenable is turned on a buffer
can be reconstituted from its VMIO backing store. The reconstituted buffer
will have no knowledge of the physical block translation and the result is
serious directory corruption of the CDROM.
The solution is to fix cd9660_blkatoff() to always BMAP the buffer if
b_lblkno == b_blkno.
MFC after: 0 days
etc. The only bit of debugging left is performing dual output to both
the screen and COM1. Also, the twiddle is still disabled since it seems
to do weird things to the serial dump. cdboot now has 880 bytes to spare.
to the El Torito standard for CD booting, a CD may boot in "No emulation"
mode without using a floppy image. In this mode, the BIOS loads a program
off of the CD into memory and creates a BIOS device using 2048 byte sectors
for the CD. According to the standard, this program can be up to 0xFFFF
virtual (512-byte) sectors long. The old cdldr depended on this by having
the BIOS load the entire loader and the small cdldr stub as one binary
similar to pxeboot so that cdldr didn't have to read the CD to find the
loader. However, the NT no emulation loader just uses 1 disk sector
(4 virtual sectors), so it seems that at least some BIOS writers just did
enough to get NT to boot by only loading 1 sector and ignoring the sector
count. Thus, while cdldr should have worked in theory, it doesn't in
practice. This replacment fits entirely in 1 sector and includes simple
ISO 9660 support. It looks for /boot/loader on the CD and loads it up
using the BIOS. This allows us to not have to depend on the limited size
of floppy images but use a full GENERIC kernel for CD-ROM installs in the
future, among other things.
This version of cdboot is a bit bloated as it includes some useful
debugging routines that people can pull to use in other x86 assembly
modules. Even with all the debugging cruft, we still have 272 bytes to
spare.
devices in 'lsdev' output rather than printing out a pointer to the
print function since the user really could care less about the pointer
value. Perhaps this was intended to be a debugging printf?
