ordering on release notes items, in an attempt to bring some order
to a huge mess. This commit covers the top-level "Userland"
section.
No other content, markup, or whitespace changes.
instruction. Stefan Keller <dres@earth.serd.org> noticed that CPU
identification was broken when compiled with -O2, and tracked it
down to the asm statement, which was storing values into memory
without specifying that memory was modified. He submitted a patch
which added "memory" as a clobber, but I refined it further to
arrive at this version.
MFC after: 3 days
__FBSDID() and ifdefed away all vendor id stuff.
This file should never have left the vendor branch; it is now identical
with the vendor's version except for id fiddling.
be set. We need to check isr.w before isr.r so that we can correctly
handle a cmpxchg to a copy-on-write page.
This fixes the hang-after-fork problem for dynamically linked programs.
This stops panics on unloading modules which define their own sysctl sets.
However, this also removes the protection against somebody actually
defining a static sysctl with an oid in the range of the dynamic ones,
which would break badly if there is already a dynamic sysctl with
the requested oid.
Apparently, the algorithm for removing sysctl sets needs a bit more work.
For the present, the panic I introduced only leads to Bad Things (tm).
Submitted by: many users of -current :(
Pointy hat to: roam (myself) for not testing rev. 1.112 enough.
- Add proc locking to the jail() syscall. This mostly involved shuffling
a few things around so that blockable things like malloc and copyin
were performed before acquiring the lock and checking the existing
ucred and then updating the ucred as one "atomic" change under the proc
lock.
- crhold() returns a reference to the ucred whose refcount it bumps.
- crcopy() now simply copies the credentials from one credential to
another and has no return value.
- a new crshared() primitive is added which returns true if a ucred's
refcount is > 1 and false (0) otherwise.
- Restore the ability to look up network names in the networks(5)
database by passing getnetbyaddr(3) shifted network numbers,
but without duplicating the old bug that was fixed in 1.27 (we
now only shift netnums with standard netmasks). For example:
Before:
$ netstat -r
[...]
127.0.1/24 localhost UGSc 0 0 lo0
127.0.2/24 localhost UGSc 0 0 lo0
After:
$ netstat -r
[...]
subnet1/24 localhost UGSc 0 0 lo0
subnet2/24 localhost UGSc 0 0 lo0
- Only try to lookup with the forged netmask if the mask was not
explicitly specified, like it was before 1.27. For example:
Before:
$ netstat -r
net-44.ampr.org/25 localhost UGSc 0 0 lo0
net-44.ampr.org/25 localhost UGSc 0 0 lo0
After:
44.108.2/25 localhost UGSc 0 0 lo0
44.108.2.128/25 localhost UGSc 0 0 lo0
- Make sure to null-terminate the resulting string.
MFC after: 1 week
C calling conventions. This allows crt1.c to be written nearly without
any inline assembler.
* Initialise cpu_model[] so that the hw.model sysctl works properly.
to do with "dropped packets." Any packets matching rules with the
'log' directive are logged regardless of the action, drop, pass,
divert, pipe, etc.
MFC after: 1 day
