Nowadays uname(3) is an inline function around __xuname(3). Prevent
linkage of new binaries against this compatibility function, similar to
what I did with ttyslot(3).
Note that due to e.g. write throttling ('wdrain'), it can stall all the disk
I/O instead of just the device it's configured for. Using it for removable
media is therefore not a good idea.
Reviewed by: pjd (earlier version)
chains. This part of code is to enhance performance so failing the
collapsing should not free TX frames. Otherwise bge(4) will
unnecessarily drop frames which in turn can freeze the network
connection.
Reported by: Igor Sysoev (is <> rambler-co dot ru)
Tested by: Igor Sysoev (is <> rambler-co dot ru)
LAPIC may lead to aliasing for softclock and profclock because frequencies
are sized in order to fit mainly hardclock.
atrtc used to take care of the softclock and profclock and it does still
do, if the LAPIC can't handle the clocks properly.
Revert the change when the LAPIC started taking charge of all three of
them and let atrtc handle softclock and profclock if not explicitly
requested. Such request can be made setting != 0 the new tunable
machdep.lapic_allclocks or if the new device ATPIC is not present
within the i386 kernel config (atrtc is linked to atpic presence).
Diagnosed by: Sandvine Incorporated
Reviewed by: jhb, emaste
Sponsored by: Sandvine Incorporated
MFC: 3 weeks
---snip---
Add video clipping support but with the caveats below.
Background info:
Video clipping allows the user to provide either a series of clip rectangles
or a clip bitmap to the driver and have the driver mask the video according
to the clipping specs provided.
Adding support for clipping to the FreeBSD Linux emulator is problematic
because it seems that this feature is not supported by many drivers and
therefore it is ignored by many applications. Unfortunately, when not
using it, rather than passing in a null clipping list, some apps leave the
clipping fields uninitialized, casuing random values to be passed in. In
the case where the driver does not use the clipping info, this is not a
problem (although it is bad form). But the Linux emulator does not know
which drivers will use this and which won't, so the Linux emulator must
try to handle this clip list, and deal gracefully with cases where the
values seem to be uninitialized.
Video clipping info is passed in using the VIDIOCSWIN ioctl in two fields
in the video_window structure: the integer clipcount and the pointer clips.
How the linuxulator handles this from this commit on:
* if (clipcount == VIDEO_CLIP_BITMAP)
The clips variable is a void * pointer to a 128*625 byte
(1024*625 bit) memory area containing a bitmap of the clipping area.
The pointer in the video_window structure is copied, but no
video_clip structures are copied.
* if (clipcount > 0 && clipcount <= 16384)
The clips variable is pointer to a list of video_clip structures. Up
to clipcount structures are copied and passed to the driver.
The upper limit of 16384 was imposed here so that user code that does
not properly initialize clipcount falls through below and no attempt
is made to copy an uninitialized list. This value was found by
examining Linux drivers that support the clip list.
* else
The clipcount is either negative (but not VIDEO_CLIP_BITMAP), zero or
positive (> 16384).
All these cases are treated as invalid data. Both the clipcount field
and clips pointer are forced to zero/NULL and passed to the driver.
It should be noted that, at the time of developing this V4L emulator code,
the pwc(4) V4L driver does not support clipping.
Submitted by: J.R. Oldroyd <fbsd@opal.com>
MFC after: 1 month
---snip---
native devices which support the v4l API from processes running within
the linuxulator, e.g. skype or flash can access the multimedia/pwcbsd driver.
Not tested is firmware upload, framebuffer stuff and video tuner stuff
due to lack of hardware.
The clipping part (VIDIOCSWIN) needs a little bit of further work (partly
in progress, but can not be tested due to lack of a suitable device).
The submitter tested this sucessfully with Skype and flash apps on amd64 and
i386 with the multimedia/pwcbsd driver.
Submitted by: J.R. Oldroyd <fbsd@opal.com>
of allocating what ever the user asks for up to "ngroups_max + 1". On
systems with large values of kern.ngroups this will be more efficient.
The now redundant check that the array is large enough in
kern_getgroups() is deliberate to allow this change to be merged to
stable/8 without breaking potential third party consumers of the API.
Reported by: bde
MFC after: 28 days
That is, write 'exec 3<&0' instead of '3<&0'. Due to an sh(1) bug fixed in
r199953, the latter also persisted, provided that fd 3 was not open before.
With newer sh or fd 3 open, it would not delete orphaned catpages.
MFC after: 2 weeks
This utility allows users to convert their wtmp databases to the new
format. It makes no sense for users to keep their wtmp log files if they
are unable to view them.
It basically copies ut_line into ut_id as well. This makes it possible
for last(1) and ac(8) to match login records with their corresponding
logout record.
copper and fiber interfaces over GMII so an explicit check is
necessary to know whether it was configured for fiber interface.
This change make BCM5715S work.
Tested by: olli
MFC after: 1 week
over GMII, make sure to enable GMII. With this change brgphy(4) is
used to handle the dual mode PHY. Since we still don't have a sane
way to pass PHY specific information to mii(4) layer special
handling is needed in brgphy(4) to determine which mode of PHY was
configured in parent interface.
This change make BCM5715S work.
Tested by: olli
Obtained from: OpenBSD
MFC after: 1 week
non-digit character.
Due to an issue with rc(8) in a test configuration, ifconfig was being
invoked with the address used again as the width - for example,
ifconfig vlan0 10.0.0.1/10.0.0.1
Prior to this change, that address/width would be interpreted as
10.0.0.1/10.
I forgot to cast the size_t's back to off_t before negating them,
causing all sorts of artifacts where the log files would grow to 2^32 -
197 bytes.
Reported by: ume
if_initname().
- Document if_drv_flags and replace references to IFF_(RUNNING|OACTIVE)
with references to IFF_DRV_(RUNNING|OACTIVE).
- Complete truncated sentence in the description of if_transmit by copying
from the description in if_qflush.
- Add missing line breaks for translators.
Reviewed by: brooks (1)
MFC after: 3 days
<sys/proc.h>.
- Add RETURN VALUES and ERROR sections for namei()'s error return values.
- Add a missing link to NDHASGIANT.9.
PR: docs/142815, docs/142816
Submitted by: Lachlan Kang (1, 2)
MFC after: 3 days
of Code 2009:
- BSDL block and inode allocation policies for ext2fs. This involves the use
FFS1 style block and inode allocation for ext2fs. Preallocation was removed
since it was GPL'd.
- Make ext2fs MPSAFE by introducing locks to per-mount datastructures.
- Fixes for kern/122047 PR.
- Various small bugfixes.
- Move out of gnu/ directory.
Sponsored by: Google Inc.
Submitted by: Aditya Sarawgi <sarawgi.aditya AT SPAMFREE gmail DOT com>
