o In do_sendfile(), replace vm_page_sleep_busy() by vm_page_sleep_if_busy()
and extend the scope of the page queues lock to cover all accesses
to the page's flags and busy fields.
Make M_COPY_PKTHDR() macro into a wrapper for a m_copy_pkthdr()
function. This permits conditionally compiled extensions to the
packet header copying semantic, such as extensions to copy MAC
labels.
If we get 0xffff back when reading the status register, assume the card
has gone away instead of spinning in the interrupt handler. This stops
my machine from hanging when I eject a rl(4)-based cardbus card.
Introduce a mac_policy() system call that will provide MAC policies
with a general purpose front end entry point for user applications
to invoke. The MAC framework will route the system call to the
appropriate policy by name.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
For processes which are set-user-ID or set-group-ID, the kernel performs a few
special actions for safety. One of these is to make sure that file descriptors
0..2 are in use, by opening /dev/null for those that are not already open.
Another is to close any file descriptors 0..2 that reference procfs. However,
these checks were made out of order, so that it was still possible for a
set-user-ID or set-group-ID process to be started with some of the file
descriptors 0..2 unused.
Submitted by: Georgi Guninski <guninski@guninski.com>
Correct links to Handbook's pages:
http://www.freebsd.org/handbook/mirrors.html is not working anymore,
http://www.freebsd.org/doc/handbook/mirrors.html is the new link
Remove many obsolete files. The majority of these are simply no
longer included as part of the OpenSSL distribution. However, a few
we just don't need and are explicitly excluded in FREEBSD-Xlist.
Add a quick check that device actually has sound capabilities. The problem
is that some cards built around fm801 chip have the same device ID, only
have radio tuner onboard, but no sound capabilities. Therefore, with such
card inserted and `device pcm' in kernel the user has a big problem, as
the fm801 driver effectively hangs the machine when trying to initialise
nonexistent ac97 codecs (it does 500 retries with 1 second interval!).
It would be better if MediaForte's engeneers were smart enough to put
different device ID into such cards, but it isn't an option.
des [Tue, 30 Jul 2002 08:32:03 +0000 (08:32 +0000)]
Since pam_get_authtok(3) doesn't know about our options structure, setting
the PAM_ECHO_PASS option on-the-fly is a NOP (though it wasn't with the
old pam_get_pass(3) code). Instead, call pam_prompt(3) directly. This
actually simplifies the code a bit.
o In vm_object_madvise() and vm_object_page_remove() replace
vm_page_sleep_busy() with vm_page_sleep_if_busy(). At the same time,
increase the scope of the page queues lock. (This should significantly
reduce the locking overhead in vm_object_page_remove().)
o Apply some style fixes.
Add a bunch more cards that are known to work.
Add a warning about the Symbol LA-4100 series of cards. You gotta
load special firmware, and the wi driver in the tree doesn't support
that yet.
- Optimize wakeup() and its friends; if a thread waken up is being
swapped in, we do not have to ask for the scheduler thread to do
that.
- Assert that a process is not swapped out in runq functions and
swapout().
- Introduce thread_safetoswapout() for readability.
- In swapout_procs(), perform a test that may block (check of a
thread working on its vm map) first. This lets us call swapout()
with the sched_lock held, providing a better atomicity.
Add definitions for statistical and high-resolution profiling. The calling
conventions for _mcount and __cyg_profile_func_enter are different, so
statistical profiling kernels build and link but don't actually work.
IWBNI one could tell gcc to only generate calls to the former.
Define uintfptr_t properly for userland, but not for the kernel (I hope).
The data cache on UltraSPARC III is not directly mapped, so don't assert
that. This breaks assumptions made by some of the cache flushing code,
but UltraSPARC III has different methods for invalidating cache lines
anyway.
Create a new thread state to describe threads that would be ready to run
except for the fact tha they are presently swapped out. Also add a process
flag to indicate that the process has started the struggle to swap
back in. This will be needed for the case where multiple threads
start the swapin action top a collision. Also add code to stop
a process fropm being swapped out if one of the threads in this
process is actually off running on another CPU.. that might hurt...
mike [Mon, 29 Jul 2002 17:41:23 +0000 (17:41 +0000)]
Create a new header <machine/_stdint.h> for storing MD parts of
<stdint.h>. Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>. This resulted in two problems:
(1) Defining macros in <machine/ansi.h> gets in the way of that
header only defining types.
(2) Defining C99 limits in <machine/limits.h> adds pollution to
<limits.h>.
If we are in hostap mode, do not go into promisc mode. This causes
problems with the firmware and will result in a) poor performance and
b) the inability to associate certain types of cards (most notibly
cisco).
Idea obtained from OpenBSD, but I implemented it by clearing the
IFF_PROMISC flag rather than the refusing to honor it downstream.
When translating and the -c option is specified, handle the case where the
second string argument is more than one character in length in the way
required by SUSv3 (and the way GNU textutils and SVR4 do it).
Ignore -C, -p, and -S options of install(1) when used with the -d
option. Warn about COPY being phased out. Restore the old method
of always comparing before installing: INSTALL="install -C".
jeff [Mon, 29 Jul 2002 06:26:55 +0000 (06:26 +0000)]
- Backout the patch made in revision 1.75 of vfs_mount.c. The vputs here
were hiding the real problem of the missing unlock in sync_inactive.
- Add the missing unlock in sync_inactive.
o Pass VM_ALLOC_WIRED to vm_page_grab() rather than calling vm_page_wire()
in pmap_new_thread(), pmap_pinit(), and vm_proc_new().
o Lock page queue accesses by vm_page_free() in pmap_object_init_pt().
1.131 is slightly broken, and I would commit the fix to that here, but it
has been reported that any deviation from the original code is causing
problems with some 82557 chips, causing them to lock hard.
Until those issues have been figured out, going back to the original
code is the best plan.
luigi [Mon, 29 Jul 2002 02:48:09 +0000 (02:48 +0000)]
whitespace commit: fix indentation in fxp_intr_body.
This is also done in preparation of a subsequent fix
for the handling of RNR conditions in polling mode.
Make a temporary copy of the output data in the generic sysctl handlers
so that the data is less likely to be inconsistent if SYSCTL_OUT() blocks.
If the data is large, wire the output buffer instead.
This is somewhat less than optimal, since the handler could skip the copy
if it knew that the data was static.
If the data is dynamic, we are still not guaranteed to get a consistent
copy since another processor could change the data while the copy is in
progress because the data is not locked. This problem could be solved if
the generic handlers had the ability to grab the proper lock before the
copy and release it afterwards.
This may duplicate work done in other sysctl handlers in the kernel which
also copy the data, possibly while a lock is held, before calling they call
a generic handler to output the data. These handlers should probably call
SYSCTL_OUT() directly.
Wire the sysctl output buffer before grabbing any locks to prevent
SYSCTL_OUT() from blocking while locks are held. This should
only be done when it would be inconvenient to make a temporary copy of
the data and defer calling SYSCTL_OUT() until after the locks are
released.
Fix a bug introduced in previous commit. Due to the interaction of the
direct physical mappings with virtual page colour, we need to flush the
data cache when a page changes colour. I missed one case which broke
pipes.
1) Define _KERNEL while including sys/time.h to get some function prototypes.
2) Add prototypes and ANSIify definitions.
3) Constness changes.
4) Remove register keyword.
5) Actually return a sensible value from main.
6) Make fread_tail take a void * instead of a char *.
7) Avoid a signedness warning by casting to a size_t. Should be safe
enough 'cos we also check for nonnegativity.
8) Be extra chummy with sigset_t rather than passing a struct to printf
and pretending it is an int.
mike [Sun, 28 Jul 2002 15:59:51 +0000 (15:59 +0000)]
Revert the previous delta; uintfptr_t needs to be available to
userland for libc/gmon to compile, so the typedef in <machine/types.h>
isn't good enough. This is really ugly since we end up with the
actual value which uintfptr_t is typedef'd from, in multiple places.
This is bug for bug compatible with the other FreeBSD architectures.
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