and add skeleton IPv6 support. The new code structure can also be easily
enhanced to support new/more protocols (SCTP) and IP fragmentation in the
future.
In em_encap() only try to do TSO if 'dotso' is true.
Reviewed by: jfv
- EFBIG means the mbuf chain was too long and bus_dma ran out of segments.
Defragment the mbuf chain and try again. (Already existed, not changed.)
- ENOMEM means bus_dma could not obtain enough bounce buffers at this point
in time. Defer sending and try again later.
- All other errors, in particular EINVAL, are fatal and prevent the mbuf
chain from ever going through. Drop it and report error.
- Checking (nsegs == 0) is unnecessary as bus_dmamap_load_mbuf_sg() always
reports an error if it is < 1.
This prevents broken packets from clogging the interface queue indefinately.
Discussed with: scottl
Reviewed by: jfv
Remove workarounds for tty_refcount beeing 0, this will be fixed differently
later.
Back out rev 1.145 since we initialize the tty struct from scratch and bad
things can't happen anymore.
scale it to min(ephemeral port range / 2, maxsockets / 5) so that people
with large gobs of memory and/or large maxsockets settings will not
exhaust their entire ephemeral port range with sockets in the TIME_WAIT
state during periods of heavy load.
Those who wish to tweak the size of the TIME_WAIT zone can still do so with
net.inet.tcp.maxtcptw.
Reviewed by: glebius, ru
when root doesn't have the permission to enter target user's home directory.
If set, PAM environment variable HOME will be used in chdir(2) instead of
pwd->pw_dir, this allows pam_chroot module to continue to function.
another 16 bytes off of BTX (and thus boot2):
- Compare against the value of %eax that is saved on the stack instead of
loading it into %eax (which requires saving the current %eax on the
stack).
- Use %ch to examine the keyboard flag state in the BIOS to see if
Ctrl-Alt-Del is pressed instead of %al so we don't have to save %eax on
the stack anymore.
MFC after: 1 week
BTX (and thus boot2):
- Don't bother saving %eax, %ebx, or %ecx as it is not necessary.
- Use a more compact sequence to load the base value out of a GDT entry
by loading the contiguous low 24 bits into the upper 24 bits of %eax,
loading the high 8 bits into %al, and using a ror to rotate the bits
(2 mov's and a ror) rather than loading the pieces in smaller chunks
(3 mov's and a shl).
- Use movzwl + leal instead of movl + movw + shll + addl.
- Use 'xchgl %eax,%foo' rather than 'movl %eax,%foo' for cases where
it's ok to trash %eax. xchgl %eax, foo is a 1-byte opcode whereas the
mov is a 2-byte opcode.
- Use movzwl rather than xorl + movw.
MFC after: 1 week
of its internal state to ignore the failed send and try again a bit later.
If the error is EPERM the packet got blocked by the local firewall and the
revert may cause the session to get stuck and retry indefinitely. This way
we treat it like a packet loss and let the retransmit timer and timeouts
do their work over time.
The correct behavior is to drop a connection that gets an EPERM error.
However this _may_ introduce some POLA problems and a two commit approach
was chosen.
Discussed with: glebius
PR: kern/25986
PR: kern/102653
commit.
1) sys/dev/sound/pcm/sound.h
sys/dev/sound/pcm/channel.c
* Be more specific: SD_F_SOFTVOL -> SD_F_SOFTPCMVOL
2) sys/dev/sound/pcm/mixer.[ch]
* Implement
mix_setparentchild()
mix_setrealdev()
mix_getparent()
mix_getchild()
The purpose of these functions is implement relative volume
adjustment, such as to tie two or more mixer device into a
single logical device. Usefull for the upcoming HDA driver
and few AC97 codec (such as AD1981B) where the master volume
"vol" need to be implemented using this logical manner.
3) sys/dev/sound/pcm/ac97_patch.[ch]
* Patch for AD1981B codec to enable (automuting) headphone jack sense.
4) sys/dev/sound/pcm/ac97.c
* Implement proper logical master volume for AD9181B codec
through various mix_set{parentchild,realdev}(). Tie both
"ogain" (headphone volume) and "phone" (speaker/lineout) to
a logical "vol".
5) sys/dev/sound/pcm/usb/uaudio_pcm.c
* ditto, for "vol" -> { "pcm" }.
MFC after: 1 month
the MROUTER is running, the system would panic as described in the PR.
The fix in the PR is a good start, however, the other state associated
with the multicast forwarding cache has to be freed in order to avoid
leaking memory and other possible panics.
More care and attention is needed in this area.
PR: kern/82882
MFC after: 1 week
goes away. Without this change, it leaks in_multi (and often ether_multi
state) if many clonable interfaces are created and destroyed in quick
succession.
The concept of this fix is borrowed from KAME. Detailed information about
this behaviour, as well as test cases, are available in the PR.
PR: kern/78227
MFC after: 1 week
ioctls passing integer arguments should use the _IOWINT() macro.
This fixes a lot of ioctl's not working on sparc64, most notable
being keyboard/syscons ioctls.
Full ABI compatibility is provided, with the bonus of fixing the
handling of old ioctls on sparc64.
Reviewed by: bde (with contributions)
Tested by: emax, marius
MFC after: 1 week
rather than just emulating mov cr0, eax. This fixes some Compaq/HP BIOS
with DMA (as the BIOS tried to read cr3 so it could translate addresses
if paging was enabled).
MFC after: 1 week
timer interrupt servicing for disabled HTT cores in ULE case. Should be
probably fixed in ULE code instead, but we have no real maintainer for
ULE to do it.
PR: 103697
this for 'initiator id'- this is a stopgap until a sparse map is
added.
Make compat defines for offset format (FreeBSD 5 or less).
Add no-asyncio flag. There's some breakage with ASYNC I/O that every
now and then drops us into an infinite loop. This also then does
a fallback to no-asyncio if the AIO option isn't loaded/compiled into
the kernel.
A number of other chanes to try and track some breakage.
- Change variable name to 'error', as this is what is mostly used for
functions that return an error.
- Add mutex(9) to the SEE ALSO section.
- Bump the date.
I don't really like the example code. I'd prefer symmetry where possible, eg.
mtx_lock(&example_lock);
error = example(NULL, EXAMPLE_ONE);
mtx_unlock(&example_lock);
if (error != 0)
return (error);
But I'll leave it as it is for now.
Reviewed by: simon
The key problem was that the aperture size detection using the MSAC bit
doesn't work -- the bit appears to be set even when it shouldn't be. Linux
takes a different approach, testing for a bit of the GMADR (PCIR_BAR(2)) being
set. However, as I don't think that's a safe way to test aperture size, we
just allocate the resource and check its size. This also pointed out that
agp_generic_attach hadn't been allocating our aperture resource, which may
have caused problems in some cases.
Also corrected is a minor copy-and-pasteo in an error case.
PR: kern/103079
Submitted by: mnag
Tested on: i945GM, i915GM
MFC after: 2 weeks
