addresses. Make the kernel support SIOC[SG]IFADDRPREF for IPv6
interface addresses.
In in6ifa_ifpforlinklocal(), consult preference numbers before
making an otherwise arbitrary choice of in6_ifaddr. Otherwise,
preference numbers are *not* consulted by the kernel, but that will
be rather easy for somebody with a little bit of free time to fix.
Please note that setting the preference number for a link-local
IPv6 address does not work right, yet, but that ought to be fixed
soon.
In support of the changes above,
1 Add a method to struct domain for "externalizing" a sockaddr, and
provide an implementation for IPv6. Expect more work in this area: it
may be more proper to say that the IPv6 implementation "internalizes"
a sockaddr. Add sockaddr_externalize().
2 Add a subroutine, sofamily(), that returns a struct socket's address
family or AF_UNSPEC.
3 Make a lot of IPv4-specific code generic, and move it from
sys/netinet/ to sys/net/ for re-use by IPv6 parts of the kernel and
ifconfig(8).
or route(8): it tells ifconfig(8) to try to resolve numbers to
hosts and service names.
This default ifconfig behavior stays the same as it always was.
a struct called kernelops, which contains standard system calls
for the normal case and rump system calls for the rump case.
Make it possible to run the lfs cleaner in a library fashion (taking
the quick route with the implementation).
will not return any data and mount(2) fails with EINVAL if data_len
is 0. This caused lame-o output in mount -vv:
mount_fdesc: fdesc on /failsystem: Invalid argument
value to put a prop_string_t into the environment, but the keyword
parser put a prop_data_t into the environment, instead. That broke
the -vlanif and -carpdev keywords and defied developer expectations.
Let's put a prop_string_t into the environment.
Thanks to Arnaud Degroote for reporting the problem.
tested with a DEBUG+DIAGNOSTIC+LOCKDEBUG kernel. To summerise NiLFS, i'll
repeat my posting to tech-kern here:
NiLFS stands for New implementation of Logging File System; LFS done
right they claim :) It is at version 2 now and is being developed by NTT, the
Japanese telecom company and recently put into the linux source tree. See
http://www.nilfs.org. The on-disc format is not completely frozen and i expect
at least one minor revision to come in time.
The benefits of NiLFS are build-in fine-grained checkpointing, persistent
snapshots, multiple mounts and very large file and media support. Every
checkpoint can be transformed into a snapshot and v.v. It is said to perform
very well on flash media since it is not overwriting pieces apart from a
incidental update of the superblock, but that might change. It is accompanied
by a cleaner to clean up the segments and recover lost space.
My work is not a port of the linux code; its a new implementation. Porting the
code would be more work since its very linux oriented and never written to be
ported outside linux. The goal is to be fully interchangable. The code is non
intrusive to other parts of the kernel. It is also very light-weight.
The current state of the code is read-only access to both clean and dirty
NiLFS partitions. On mounting a dirty partition it rolls forward the log to
the last checkpoint. Full read-write support is however planned!
Just as the linux code, mount_nilfs allows for the `head' to be mounted
read/write and allows multiple read-only snapshots/checkpoint mounts next to
it.
By allowing the RW mount at a different snapshot for read-write it should be
possible eventually to revert back to a previous state; i.e. try to upgrade a
system and being able to revert to the exact state prior to the upgrade.
Compared to other FS's its pretty light-weight, suitable for embedded use and
on flash media. The read-only code is currently 17kb object code on
NetBSD/i386. I doubt the read-write code will surpass the 50 or 60. Compared
this to FFS being 156kb, UDF being 84 kb and NFS being 130kb. Run-time memory
usage is most likely not very different from other uses though maybe a bit
higher than FFS.
- Capitialize "Name" in World Wide Name.
- Print the World Wide Name if it exists.
- Use LBA48 maximum address when available for "total sectors" output.
- So that geometry will display on more drives, don't be as strict when
checking for non-ATAPI devices. (This seemed to be an issue on at least
one instance of a Caviar SE16 drive.)
- Check more carefully for valid/relevant queue depth before printing it.
- Increment the queue depth by one for display.
While here, wrap some long lines that I should have had wrapped before they
were commited in rev. 1.46.
partutil.c::getdiskinfo to use it to get disk geometry info.
Use DIOCGWEDGEINFO ioctl to get information about partition size, if disk
driver doesn't support it use old DIOCGDINFO. This patch adds support for
wedge like devices(lvm logical volumes, ZFS zvol partitions) to newfs and
other tools.
No objections on tech-userlevel@.
when figuring out Where In The Kernel Is Carmen Sandiego's ioctl
for an ifconfig command line, since we can simply single-step into
the kernel.
Activated by "make RUMP_ACTION=1". No changes to normal case.
module. This is in preparation for having the kernel load an optional
<module>.prop alongside a module, which is useful for passing options
to autoloaded modules and modules loaded at boot time.
e.g,
umount -a -t nonfs,mfs
This makes it clear that the "no prefix" only needs to be on the first
file-system argument to -t. The mount(8) man page has a clear example
of this but for some reason umount(8) was missing one.
ifa_data member of every AF_LINK struct ifaddrs points at the
corresponding struct if_data. In ifconfig(8), do not try to suppress
duplicate AF_LINK ifaddrs by checking for a NULL ifa_data.
Don't copy out two AF_LINK struct ifaddrs for each active link-layer
address. getifaddrs(3) used to copy out one ifaddrs for the kernel's
RTM_IFINFO message, and one more for the kernel's RTM_NEWADDR message.
I suppress the first duplicate with a highly conservative change that
wastes a little bit of ifaddrs storage. The storage is not leaked.
'address: ' field, don't treat the first address as the active address,
but search the link-layer addresses for the ones flagged IFLR_ACTIVE,
and print those. Extract a subroutine, print_link_addresses(), for
printing link-layer addresses.
necessary geometry when creating a file system directly to a file.
In addition, when creating, do not complain about the file not
being char special and do not try to execute device ioctl's on it.
ddb running on crash dumps, but with two notable changes:
- Breakpoints, watches, etc are obviously never going to work so they
are not handled.
- You can pipe output to the shell, e.g. ps | grep foo
Items remaining to be done:
- Port it to architectures other than i386. This isn't difficult, just
a case of making db_disasm.c/db_trace.c or their equivalent compile
and work.
- Make more of the "show" commands work, e.g "show uvmexp".
because the -o linux flag was not supplied, i.e. it is the sensible
default. People who absolutely do not want the extra files in
their /proc for whatever aesthetic reason (it's not like they
consume any resources) can do -o nolinux.
PR kern/16942 panic with softdep and quotas
PR kern/19565 panic: softdep_write_inodeblock: indirect pointer #1 mismatch
PR kern/26274 softdep panic: allocdirect_merge: ...
PR kern/26374 Long delay before non-root users can write to softdep partitions
PR kern/28621 1.6.x "vp != NULL" panic in ffs_softdep.c:4653 while unmounting a softdep (+quota) filesystem
PR kern/29513 FFS+Softdep panic with unfsck-able file-corruption
PR kern/31544 The ffs softdep code appears to fail to write dirty bits to disk
PR kern/31981 stopping scsi disk can cause panic (softdep)
PR kern/32116 kernel panic in softdep (assertion failure)
PR kern/32532 softdep_trackbufs deadlock
PR kern/37191 softdep: locking against myself
PR kern/40474 Kernel panic after remounting raid root with softdep
Retire softdep, pass 2. As discussed and later formally announced on the
mailing lists.
component label. raidctl(8) should now print the correct number of
blocks for RAID sets larger than 1TB.
Patch supplied by Bernhard Moellemann in PR bin/40479.
":" or "@". (Amazingly, this was not documented before).
* Say that the "nfs" inference is deprecated. (It was deprecated in
revision 1.87 of mount.c, dated 2009-01-11.)
* Add "-t nfs" in an example, so as not to rely on the automatic
inference of nfs when the path contains a colon.
* Try to improve the description of how the arguments are interpreted.
count on "large" (>=32MB) file systems when fetching the geometry from
the medium. This confuses some software (which is to say Windows)
when a device newfs(8)ed under NetBSD is transported to another
system. (Note: The rest of the code uses 'bsec', and DTRT for smaller
file systems.)
contributed anonymously.
