Better handling of ioctl(SIOCSIFFLAGS) failing in ifpromisc():
- Don't print the "promiscuous mode (enabled|disabled)" on failure
- Restore the reference count on failure
sos [Fri, 27 Apr 2001 19:47:33 +0000 (19:47 +0000)]
Move the disklabel construction to the attach function instead of
in open. This prevent panics when a the disklabel is accessed on
an ATA-RAID subdisk.
Overhaul of the SMP code. Several portions of the SMP kernel support have
been made machine independent and various other adjustments have been made
to support Alpha SMP.
- It splits the per-process portions of hardclock() and statclock() off
into hardclock_process() and statclock_process() respectively. hardclock()
and statclock() call the *_process() functions for the current process so
that UP systems will run as before. For SMP systems, it is simply necessary
to ensure that all other processors execute the *_process() functions when the
main clock functions are triggered on one CPU by an interrupt. For the alpha
4100, clock interrupts are delievered in a staggered broadcast fashion, so
we simply call hardclock/statclock on the boot CPU and call the *_process()
functions on the secondaries. For x86, we call statclock and hardclock as
usual and then call forward_hardclock/statclock in the MD code to send an IPI
to cause the AP's to execute forwared_hardclock/statclock which then call the
*_process() functions.
- forward_signal() and forward_roundrobin() have been reworked to be MI and to
involve less hackery. Now the cpu doing the forward sets any flags, etc. and
sends a very simple IPI_AST to the other cpu(s). AST IPIs now just basically
return so that they can execute ast() and don't bother with setting the
astpending or needresched flags themselves. This also removes the loop in
forward_signal() as sched_lock closes the race condition that the loop worked
around.
- need_resched(), resched_wanted() and clear_resched() have been changed to take
a process to act on rather than assuming curproc so that they can be used to
implement forward_roundrobin() as described above.
- Various other SMP variables have been moved to a MI subr_smp.c and a new
header sys/smp.h declares MI SMP variables and API's. The IPI API's from
machine/ipl.h have moved to machine/smp.h which is included by sys/smp.h.
- The globaldata_register() and globaldata_find() functions as well as the
SLIST of globaldata structures has become MI and moved into subr_smp.c.
Also, the globaldata list is only available if SMP support is compiled in.
Make stathz match reality on platforms like the 4100 where hz!=1024
It might be more correct to make stathz as close as possible to 128,
but that would involve adding complexity to the clock intr path, which
I don't want to do.
o Remove the disabled p_cansched() test cases that permitted users to
modify the scheduling properties of processes with a different real
uid but the same effective uid (i.e., daemons, et al). (note: these
cases were previously commented out, so this does not change the
compiled code at al)
Initiate the deorbit burn sequence for sys/ipl.h by moving the software
interrupt priorities over to sys/interrupt.h next to the software interrupt
API.
The function __rpc_uaddr2taddr_af() converts an RPC "universal
address" string to a netbuf/sockaddr "transport address". In the
case of an AF_LOCAL address, it was missing the code to actually
point the netbuf at the newly allocated sockaddr_un, so the caller
ended up with a netbuf containing junk.
Bring in some bugfixes from NetBSD. I'm going to make a more
extensive pass through the rpcbind code soon, but I might as well
bring these in now.
- (NetBSD util.c r1.5) Move the initialisation of `tbuf' to avoid
a case where it could end up containing junk from the stack. This
should address the issue in PR bin/26806.
- (NetBSD util.c r1.6) Don't `merge' AF_LOCAL addresses, fix a few
memory leaks.
PR: bin/26806
Submitted by: Martin Blapp <mb@imp.ch>
Obtained from: NetBSD
Fix the definitions for memory bank sizes, which I somehow got wrong.
The constant I was using was correct, but I mislabeled it as 256K when
it should have been 512K. This doesn't actually change the code, but
it clarifies things somewhat.
Add missing break when printing IPv6 multicast addresses.
Use the sockaddr_dl sdl_type, not ifnet.if_type, to decide what type
a multicast sockaddr_dl is.
Rather than copying all the indirect blocks of the snapshot,
simply mark them as BLK_NOCOPY. This trick cuts the initial
size of the snapshot in half and cuts the time to take a
snapshot by a third.
alfred [Thu, 26 Apr 2001 00:14:14 +0000 (00:14 +0000)]
Sendfile is documented to return 0 on success, however if when a
sf_hdtr is used to provide writev(2) style headers/trailers on the
sent data the return value is actually either the result of writev(2)
from the trailers or headers of no tailers are specified.
Fix sendfile to comply with the documentation, by returning 0 on
success.
steve [Wed, 25 Apr 2001 21:40:57 +0000 (21:40 +0000)]
- Add some environment variables that need to be present when using packages
from the build cluster. These are required to get the dependencies the
same as the parallel builds.
- Add an optional second argument that allows you to specific an alternate
ports directory.
- Remove the temporary file after we are done with it.
- Remove ksh93 because it won't make it on the discs until the license issues
are resolved.
Don't install KO's with the "schg" flag.
We are way too inconsistent with our setting of the "schg" flag, and in
our default install, it doesn't really offer any additional security.
Add /usr/X11R6/bin to the exported PATH. If /usr/local/bin is there,
/usr/X11R6/bin should be there. This helps all the ports that need to
run `mkfontdir' and error out as many port maintainers do not realize
`mkfontdir' isn't in the path.
alfred [Wed, 25 Apr 2001 18:40:38 +0000 (18:40 +0000)]
Fix compiling without -O, some dead code was using non-existant functions,
make the code not automatically dead but actually use the debug level
in order to determine if output is needed. Fix non-existant from_addr()
by #define'ing it to inet_ntoa().
Remove hardcoded -g from Makefile.
Reported by: "John W. De Boskey" <jwd@bsdwins.com>
Tested by: "John W. De Boskey" <jwd@bsdwins.com>
Backout rev.1.30, as the root of this problem was already fixed
in bsd.obj.mk rev.1.35, and
On Tue, Apr 24, 2001 at 06:29:27AM +1000, Bruce Evans wrote:
>
> This is bogus. It is normal for sloppy cleaning to cause problems.
> `make depend' after `make depend' should not do anything. I'm still
> waiting for a similar problem in kdump to be fixed properly :-).
alpha_fpstate_save is fairly expensive (critical enter/exit, possibly
saves 32 registers) to do on every context switch. This is only required
for SMP, so only do it there.
We should also look at moving the critical enter/exit out to the callers
Long ago, bread() set b_blkno to the disk block number as a side effect
of doing physical i/o (or it just retained the setting from when the
i/o was done). The setting is lost when buffers go away and then are
reconsituted from VM. bread() originally compensated by doing a
VOP_BMAP() to recover b_blkno, but this was no good since it sometimes
caused extra i/o or even deadlock for bread()ing metadata to do the
bmap. This was fixed in vfs_bio.c 1.33 (1995/03/03) and ffs_balloc.c
1.5, etc., by removing the VOP_BMAP() from bread() and breadn(), and
changing all (?) places that used b_blkno to set it if necessary.
ext2fs was not imported until later in 1995 and was still depending on
the old behaviour of bread() in at least ext2_balloc(). This caused
filesystem and file corruption by clobbering direct block numbers in
inodes.
When closing the last reference to an unlinked file, it is freed
by the inactive routine. Because the freeing causes the filesystem
to be modified, the close must be held up during periods when the
filesystem is suspended.
For snapshots to be consistent across crashes, they must write
blocks that they copy and claim those written blocks in their
on-disk block pointers before the old blocks that they referenced
can be allowed to be written.
Close a loophole that allowed unwritten blocks to be skipped when
doing ffs_sync with a request to wait for all I/O activity to be
completed.
Add support for running foreground (-F) and background (-B) checks.
Traditionally, fsck is invoked before the filesystems are mounted
and all checks are done to completion at that time. If background
checking is available, fsck is invoked twice. It is first invoked
at the traditional time, before the filesystems are mounted, with
the -F flag to do checking on all the filesystems that cannot do
background checking. It is then invoked a second time, after the
system has completed going multiuser, with the -B flag to do checking
on all the filesystems that can do background checking. Unlike
the foreground checking, the background checking is started
asynchonously so that other system activity can proceed even on
the filesystems that are being checked.
At the moment, only the fast filesystem supports background checking.
To be able to do background checking, a filesystem must have been
running with soft updates, not have been marked as needing a
foreground check, and be mounted and writable when the background
check is to be done (i.e., not listed as `noauto' in /etc/fstab).
These changes are the final piece needed to support background
filesystem checking. They will not have any effect until you update
your /etc/rc to invoke fsck in its new mode of operation. I am
still playing around with exactly what those changes should be
and should be committing them later this week.
Move the netexport structure from the fs-specific mountstructure
to struct mount.
This makes the "struct netexport *" paramter to the vfs_export
and vfs_checkexport interface unneeded.
Consequently that all non-stacking filesystems can use
vfs_stdcheckexp().
At the same time, make it a pointer to a struct netexport
in struct mount, so that we can remove the bogus AF_MAX
and #include <net/radix.h> from <sys/mount.h>
o Separate acl_t into internal and external representations as
required by POSIX.1e. This maintains the current 'struct acl'
in the kernel while providing the generic external acl_t
interface required to complete the ACL editing library.
o Add the acl_get_entry() function.
o Convert the existing ACL utilities, getfacl and setfacl, to
fully make use of the ACL editing library.
Add support for the -F flag which determines whether a specified
filesystem needs foreground checking (usually at boot time) or
can defer to background checking (after the system is up and running).
See the manual page, fsck_ffs(8), for details on the -F and -B options.
These options are primarily intended for use by the fsck front end.
All output is directed to stdout so that the output is coherent
when redirected to a file or a pipe. Unify the code with the fsck
front end that allows either a device or a mount point to be
specified as the argument to be checked.
Add a new field 'md_kernnest' to the alpha machine dependent process
structure. This field keeps track of how many levels deep we are nested
into the kernel. The nesting level is bumped at the start of a trap,
interrupt, syscall, or exception and is decremented on return. This is
used to detect the case when the kernel is returning back to a kernel
context in exception_return(). If we are returning to the kernel we need
to update the globaldata pointer register saved in the stack frame in case
we have switched CPU's between taking the initial interrupt that saved the
frame and returning. If we don't do this fixup it is possible for a CPU to
use the wrong per-cpu data. On UP systems this is not a problem, so the
code is conditional on SMP.
A count was used instead of simply checking the process status register in
the frame during exception_return() since there are critical sections at
the very start and end of a trap, exception, or interrupt from userland in
which we could trash the t7 register being used in userland. The counter
is incremented after adn before these critical sections respectively so
that we will not overwrite the saved t7 register if we are interrupted
during one of these critical sections.
Remove bogus assignments of libc syscall stub return values to errno;
the stubs do errno assignments and return -1 in this case, so that errno
would end up with this value.
Set LINT to the obj path, since we need to use the new lint's features
to create .ln files. We do not want to use the installed version for that,
since that might create files according to the old lint.
This is still a work in progress to clean this all up, but it gets
through buildworld, which was the problem at hand.
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