Commit Graph

201020 Commits

Author SHA1 Message Date
neel
5046d9cb8a Add emulation for legacy x86 task switching mechanism.
FreeBSD/i386 uses task switching to handle double fault exceptions and this
change enables that to work.

Reported by:	glebius
2014-07-16 21:26:26 +00:00
alc
87a2bcfd24 Implement pmap_unwire(). See r268327 for the motivation behind this change. 2014-07-16 21:06:43 +00:00
dim
a5a3bf09a2 After r261991, clang warnings about unused functions in the kernel were
completely silenced.  Make sure these warnings appear again, so there is
some incentive to fix them, but do not error out the whole kernel build
for them.

Noticed by:	steven@pyro.eu.org
PR:		191867
MFC after:	3 days
2014-07-16 20:37:03 +00:00
dteske
6b81ba954d Revert previous revision (r268461) for reasons documented in PR.
To use tmux in an rc.d script, use the new-session flag "-d".
To use screen in an rc.d script, use the "-dm" flag.
If you really need to launch an attached session, manually
export TERM=xterm (FreeBSD 9.0 or higher) or export TERM=cons25
for older releases.

Reported by:	bdrewery
Discussed on:	src-committers, svn-src-all, svn-src-head
PR:		bin/191869
2014-07-16 19:02:30 +00:00
nwhitehorn
c55c162226 Allow efifb to be used with xf86-video-scfb. This is important for EFI
systems without either a CSM or real graphics drivers, such as my Lenovo
Haswell laptop.

This provides working X with the small complication of a console cursor
permanently overlaid on the upper-left corner of the screen that will be
dealt with later.

Also remove some redundant screen clearing.
2014-07-16 18:52:21 +00:00
nwhitehorn
e7a8415ccf Allow console drivers active from early boot to be used with xf86-video-scfb,
rather than only drivers attached later on. This involves a small amount of
code duplication with dev/fb/fbd.c, which will fixed later on.

Also improve performance of vt_blank() by making it not read from the
framebuffer unnecessarily.
2014-07-16 18:49:46 +00:00
jmmv
fdb8c1ca62 libpythagoras needs libm.
This fixes "make tinderbox" failures on various architectures when
WITH_TESTS=yes is enabled.  Problem introduced in r267679.
2014-07-16 16:42:58 +00:00
mav
7b21dd3b31 Add support for VMWare dialect of EXTENDED COPY command, aka VAAI Clone.
This allows to clone VMs and move them between LUNs inside one storage
host without generating extra network traffic to the initiator and back,
and without being limited by network bandwidth.

LUNs participating in copy operation should have UNIQUE NAA or EUI IDs set.
For LUNs without these IDs VMWare will use traditional copy operations.

Beware: the above LUN IDs explicitly set to values non-unique from the VM
cluster point of view may cause data corruption if wrong LUN is addressed!

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2014-07-16 15:57:17 +00:00
kib
4a70d74f6e Do not ignore error from tmpfs_alloc_vp(). It results in access to
the random memory.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-07-16 14:08:01 +00:00
kib
8708f6a5a2 Remove unused header.
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-07-16 14:06:16 +00:00
kib
32a7383c85 Check for the cross-device cross-link attempt in the VFS, instead of
forcing filesystem VOP_LINK() methods to repeat the code.  In
tmpfs_link(), remove redundand check for the type of the source,
already done by VFS.

Note that NFS server already performs this check before calling
VOP_LINK().

Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-07-16 14:04:46 +00:00
bapt
508ee54556 Sort properly the headers
While here space/tabs cleanup

Reviewed by:	kib
2014-07-16 13:52:05 +00:00
bapt
9628fa2be5 White space fixes 2014-07-16 12:09:12 +00:00
bapt
454c984331 Sort headers
Constify long options
Remove useless call to sigemptyset
properly check errno when waiting for a process status when a SIGCHLD is received
2014-07-16 11:41:28 +00:00
bapt
8ccdbe84e0 Fix typo 2014-07-16 11:30:04 +00:00
bapt
69c3c20c39 Style(9) fix 2014-07-16 11:28:53 +00:00
bapt
f80cae3e6d Fix build with gcc 2014-07-16 10:37:05 +00:00
bapt
dbe8ba01f7 Fix indentation 2014-07-16 10:34:55 +00:00
bapt
352b002169 New BSDL timeout(1) utility compatible with GNU timeout
it fully passes the GNU timeout regression tests, it is written in a mostly
portable way (only signal parsing is relying on non portable structures)

Phabric:	D377
2014-07-16 09:55:36 +00:00
hselasky
674e405004 Improve support for Intel Lynx Point USB 3.0 controllers by using the
USB 2.0 port mask in addition to the USB 3.0 port mask. The hardware
does not always accept when writing -1U to the port switching
registers.

MFC after:	3 days
Tested by:	Huang Wen Hui <huanghwh@gmail.com>
2014-07-16 06:14:41 +00:00
gavin
7a4991b943 When we fail to extract the pkg binaries (for example, / is read-only),
give a more helpful error message.

MFC after:	1 week
2014-07-16 00:12:57 +00:00
delphij
7da6d95166 Add a bandaid to fix GCC build (on sparc64 et al). 2014-07-15 23:35:06 +00:00
rmacklem
76cee98cb1 Move the "retry:" label so that the calls to m_pullup() are
not done after the call to m_defrag(). This fixes a problem
where m_pullup() would prepend an mbuf to the list created
by m_defrag() making the chain greater than 32 again.

Tested by:	rcarter@pinyon.org
Reviewed by:	yongari, jfv
MFC after:	2 weeks
2014-07-15 23:32:13 +00:00
gavin
d63161bad5 Since r202933, kthread_suspend_check() takes no arguments. Update the
example to match.

MFC after:	3 days
2014-07-15 23:29:20 +00:00
bdrewery
18dbfc8253 Also link 'show bio' to g_bio(9.)
X-MFC-With:	r268715
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2014-07-15 22:57:50 +00:00
delphij
cd85118a8b MFV r268714:
Improve extreme rewind import.

When doing an "extreme rewind" import ("zpool import -XF"), we attempt
to verify all data in the pool, essentially scrubbing the entire pool.
The problem is that spa_load_verify_cb() issues an unbounded number of
concurrent scrub i/os.  This can lead to all of memory being used for
these zio's, wedging the system. Like normal scrub, we need to put a
cap on the number of outstanding i/os, and have the traverse thread
block when we reach this cap.

For this purpose the cap can be very large (10,000) to optimize the
elevator algorithm.  Three kernel tunables have been added:

	vfs.zfs.spa_load_verify_maxinflight
	vfs.zfs.spa_load_verify_metadata
	vfs.zfs.spa_load_verify_data

The latter two tunables controls whether metadata and/or user data
when doing extreme rewind.

Make 'zpool import -T' imply scrub.

Make zpool import -T <txg> accept hexadecimal values for the txg when
prefixed with 0x.

Skip txg's for which there is no uberblock when doing extreme rewind.

Skip reading all user data twice by skipping prefetches when doing
extreme rewinds as we do not access via the ARC.

Illumos issues:
  4970 need controls on i/o issued by zpool import -XF
  4971 zpool import -T should accept hex values
  4972 zpool import -T implies extreme rewind, and thus a scrub
  4973 spa_load_retry retries the same txg
  4974 spa_load_verify() reads all data twice

MFC after:	2 weeks
2014-07-15 22:44:04 +00:00
bdrewery
d543f02759 Document the 'show bio' command added in 2009.
While here also reword 'show buffer' to have an 'addr' argument and to
match other struct documentation.

MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2014-07-15 21:13:08 +00:00
delphij
1fb217334d MFV r268702:
Add missing *_destroy() calls in various places with ZFS.

Illumos issue:
  4975 missing mutex_destroy() calls in zfs

MFC after:	2 weeks
2014-07-15 20:32:23 +00:00
kib
24a1fa13b7 Followup to r268466.
- Move the code to calculate resident count into separate function.
  It reduces the indent level and makes the operation of
  vmmap_skip_res_cnt tunable more clear.
- Optimize the calculation of the resident page count for map entry.
  Skip directly to the next lowest available index and page among the
  whole shadow chain.
- Restore the use of pmap_incore(9), only to verify that current
  mapping is indeed superpage.
- Note the issue with the invalid pages.

Suggested and reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-07-15 19:57:03 +00:00
kib
f65dceba26 Change the calculation of the kinfo_vmentry field kve_private_resident
to reflect its name.

Noted and reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-07-15 19:49:00 +00:00
np
a4e0ce3808 cxgbe(4): Display CF facility correctly in the device log.
MFC after:	3 days
2014-07-15 18:24:41 +00:00
neel
eb07e4ed55 Add support for operand size and address size override prefixes in bhyve's
instruction emulation [1].

Fix bug in emulation of opcode 0x8A where the destination is a legacy high
byte register and the guest vcpu is in 32-bit mode. Prior to this change
instead of modifying %ah, %bh, %ch or %dh the emulation would end up
modifying %spl, %bpl, %sil or %dil instead.

Add support for moffsets by treating it as a 2, 4 or 8 byte immediate value
during instruction decoding.

Fix bug in verify_gla() where the linear address computed after decoding
the instruction was not being truncated to the effective address size [2].

Tested by:	Leon Dang [1]
Reported by:	Peter Grehan [2]
Sponsored by:	Nahanni Systems
2014-07-15 17:37:17 +00:00
alc
9e8e83700c Actually set the "no execute" bit on 1 MB page mappings in pmap_protect().
Previously, the "no execute" bit was being set directly in the PTE, instead
of the local variable in which the new PTE value is being constructed.  So,
when the local variable was finally assigned to the PTE, the "no execute"
bit setting was lost.
2014-07-15 17:16:06 +00:00
jhb
17d78db27b Fix build with SMP disabled.
CR:		https://phabric.freebsd.org/D407
Reviewed by:	royger
2014-07-15 15:40:33 +00:00
bapt
7eba29e60e Add a comment to explain the EAGAIN is only there for POSIX compliance
Resquested by:	kib
Reviewed by:	des
2014-07-15 15:29:43 +00:00
kib
1ecfe30151 Make amd64 pmap_copy_pages() functional for pages not mapped by DMAP.
Requested and reviewed by:	royger
Tested by:	pho, royger
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-07-15 09:30:43 +00:00
alc
80950c5bb8 Eliminate repeated calculation of next_bucket in pmap_protect() and
pmap_remove().  Eliminate an unnecessary variable from pmap_remove() and
pmap_advise().
2014-07-15 05:34:27 +00:00
marcel
ca1d5922c5 Add image_data() for checking whether a sequence of blocks has data.
Use this for VHD and VMDK to avoid allocating space in the image
for empty sectors.

Note that this negatively affects performance because mkimg uses a
temporary file for the intermediate storage. When mkimg has better
internal book keeping, performance can be significantly improved.
2014-07-15 04:39:23 +00:00
pfg
b2edcea2f0 libc/stdlib: Minor cleanups to code originating in NetBSD
Mostly ANSIfication and typos.

Obtained from:	NetBSD
MFC after:	5 days
2014-07-15 03:28:37 +00:00
kevlo
6a45f468c1 Document that listen(2) can fail with EDESTADDRREQ. 2014-07-15 02:21:51 +00:00
pfg
93698c5f59 libc/gen: small updates to code originating at OpenBSD
arc4random.c
- CVS rev. 1.22
Change arc4random_uniform() to calculate ``2**32 % upper_bound'' as
``-upper_bound % upper_bound''. Simplifies the code and makes it the
same on both ILP32 and LP64 architectures, and also slightly faster on
LP64 architectures by using a 32-bit remainder instead of a 64-bit
remainder.
- CVS rev. 1.23
Spacing

readpassphrase.c
-CVS rev. v 1.24
most obvious unsigned char casts for ctype

Obtained from:	OpenBSD
MFC after:	5 days
2014-07-15 02:21:35 +00:00
dteske
bf1e81a37a Fix an issue with service(8) where utilities such as screen(1) and tmux(1)
would behave differently when utilizing rc-script was invoked manually vs.
service(8). The issue being that these utilities require the TERM environ
variable to be set and service(8) was not passing it down.

Reported by:	Michael Dexter <editor@callfortesting.org>
PR:		bin/191869
Reviewed by:	allanjude
MFC after:	3 days
X-MFC-to:	stable/10, stable/9
2014-07-15 02:18:55 +00:00
np
d6f3d65931 Allow multi-byte reads in the private CHELSIO_T4_GET_I2C ioctl. The
firmware allows up to 48B to be read this way but the driver limits
itself to 8B at a time to remain compatible with old cxgbetool
binaries.

MFC after:	1 week
2014-07-15 01:03:29 +00:00
grehan
bffc595f8b Use the blockif CHS routine to create fake CHS values,
and then populate them in the identity page.

This fixes a divide-by-zero error at probe time with NetBSD.

MFC after:	1 week.
2014-07-15 00:27:08 +00:00
grehan
4632b82c93 Add a call to synthesize a C/H/S value for block emulations
that require it (ahci). The algorithm used is from the VHD
specification.
2014-07-15 00:25:54 +00:00
gavin
79ac32d748 fortune(8): Search fortune files installed by ports/packages as well as
those supplied by the base system.

PR:		191800
Submitted by:	Andy Kosela
MFC after:	1 week
2014-07-14 23:25:29 +00:00
mjg
b55267950c Plug p_pptr null test in do_execve. It is always true. 2014-07-14 22:40:46 +00:00
pfg
ce102225bd newfs_msdosfs: Respect FSFIXFAT
Fix some whitespace issues while here.

Obtained from:	NetBSD (rev. 1.9)
MFC after:	3 days
2014-07-14 21:32:40 +00:00
mjg
fe1391d5a5 Manage struct sigacts refcnt with atomics instead of a mutex.
MFC after:	1 week
2014-07-14 21:12:59 +00:00
ian
a99cc79448 Fix the Zedboard/Zynq ethernet driver to handle media speed changes so
that it can connect to switches at speeds other than 1gb.

This requires changing the reference clock speed.  Since we still don't
have a general clock API that lets a SoC-independant driver manipulate its
own clocks, this change includes a weak reference to a routine named
cgem_set_ref_clk().  The default implementation is a no-op; SoC-specific
code can provide an implementation that actually changes the speed.

Submitted by:	Thomas Skibo <ThomasSkibo@sbcglobal.net>
2014-07-14 20:58:57 +00:00