in various declarations.
Otherwise, depending on how unwind-arm.h is included from other source
files, the compiler may complain that uint32_t and uint64_t are unknown
types.
MFC after: 3 days
pages to page as necessary.
To restore historic BSD behaviour add the following to ntp.conf:
rlimit memlock 32
Discussed on: freebsd-current@ between Sept 6-9, 2019
Reported by: Users using ASLR with stack gap != 0
Reviewed by: ian, kib, rgrimes (all previous versions)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D21581
This is re-appearance of the nop code removed from other arches in r287625.
Reviewed by: alc (as part of the larger patch), markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
DIfferential revision: https://reviews.freebsd.org/D21645
Intel Stratix 10 SoC includes a quad-core arm64 cluster and FPGA fabric.
This adds support for reconfiguring FPGA.
Accessing FPGA core of this SoC require the level of privilege EL3,
while kernel runs in EL1 (lower) level of privilege.
This provides an Intel service layer interface that uses SMCCC to pass
queries to the secure-monitor (EL3).
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D21454
PSCI code to use it.
This interface will also be used by Intel Stratix 10 platform.
This was not tested on arm due to lack of PSCI-enabled arm hardware
lying around.
Reviewed by: andrew
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D21439
1. If we release the last usecount we take ownership of the hold count, which
means the vnode will remain allocated until we vdrop it.
2. If someone else vrefs they will find no usecount and will proceed to add
their own hold count.
3. No code has a problem with v_usecount transitioning to 0 without the
interlock
These facts combined mean we can fetchadd instead of having a cmpset loop.
Reviewed by: kib (previous version)
Tested by: pho
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21528
This version bring many fixes regarding unicode support
It also adds proper support for filename completion (we do not need our custom
patches anymore)
Improves the libreadline compatibility
Note that the same work was done by Yuichiro Naito in
https://reviews.freebsd.org/D21196 the main difference is in this case we have
reimported libedit in contrib to fix a long standing mess in the previous merges
which prevented a proper update workflow. (discussed long ago with pfg@)
The only difference with upstream libedit is we have added a compatibility shim
for the _elf_fn_sh_complete function which we previously added to support quoting
in filename completion and is not needed anymore.
This was added to continue supported old /bin/sh binaries and not break backward
compatibility (as discussed with jilles@)
Reviewed by: Yuichiro Naito <naito.yuichiro_gmail.com>
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D21584
Those scripts are without copyright and license assignement since their creation
After grabbing information from The various authors and contributors assign
proper license header and copyrights.
This has been reported by yuripv in his work on integrating those in Illumos!
Reported by: yuripv
Discussed with: marino, edwin
MFC after: 3 days
This commit fixes bug: command "jail -r" didn't trigger pre/post stop
commands (and others) defined in config file if jid is specified insted of
name. Also it adds basic tests for usr.sbin/jail to avoid regression.
Reviewed by: jamie, kevans, ray
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D21328
This only lists the changed type and not other attributes so that it
matches the behavior of -C as done in r66747 for fmtree. The NetBSD
-ff implementation was copied from fmtree.
Reviewed by: imp
MFC after: 2 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D21623
More work needs to be done, but it is capable of running basic
statically or dynamically linked Linux/arm64 binaries.
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
cpuset_getroot() is guaranteed to return a non-NULL pointer.
Reported by: Mark Millard <marklmi@yahoo.com>
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
When ifuncs are used in statically linked binaries, the C runtime
must perform the needed dynamic relocations, to make calls to ifuncs
work correctly.
Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D21070
Refcount waiting will set some flag bits in the refcount value.
Make sure these bits get cleared by using the REFCOUNT_COUNT()
macro to obtain the actual refcount.
Differential Revision: https://reviews.freebsd.org/D21620
Reviewed by: kib@, markj@
MFC after: 1 week
Sponsored by: Mellanox Technologies
location.
With newer import of libedit, the path to be able to access readline/readline.h
will also include header which name will conflict with some expected by ntp in
another path and end up breaking the build.
Instead of throwing EEXIST, just succeed if the name isn't actually
changing. We don't need to trigger departure or any of that because there's
no change from consumers' perspective.
PR: 240539
Reviewed by: brooks
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D21618
As I like to forget: static kenv var formatting is actually such that an
empty environment would be double null bytes. We should make sure that a
non-zero buffer has at least enough for this, though most of the current
usage is with a 4k buffer.
Garbage in the passed-in buffer can cause problems if any attempts to read
the kenv are inadvertently made between init_static_kenv and the first
kern_setenv -- assuming there is one.
This is cheap and easy, so do it. This also helps rule out some class of
bugs as one tries to debug; tunables fetch from the static environment up
until SI_SUB_KMEM + 1, and many of these buffers are global ~4k buffers that
rely on BSS clearing while others just grab a page of free memory and use it
(e.g. xen).
Execution of "Soft reset" command (IG4_REG_RESETS_SKL) at controller init
stage sets SDA_HOLD register value to 0x0001 which is often too low for
normal operation.
Set SDA_HOLD back to 28 after reset to restore controller functionality.
PR: 240339
Reported by: imp, GregV, et al.
MFC after: 3 days
Setting the B_INVALONERR flag before a synchronous write causes the buf
cache to forcibly invalidate contents if the write fails (BIO_ERROR).
This is intended to be used to allow layers above the buffer cache to make
more informed decisions about when discarding dirty buffers without
successful write is acceptable.
As a proof of concept, use in msdosfs to handle failures to mark the on-disk
'dirty' bit during rw mount or ro->rw update.
Extending this to other filesystems is left as future work.
PR: 210316
Reviewed by: kib (with objections)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D21539
When SO_TIMESTAMP is set, the kernel will attempt to attach a timestamp as
ancillary data to each IP datagram that is received on the socket. However,
it may fail, for example due to insufficient memory. In that case the
packet will still be received but not timestamp will be attached.
Reviewed by: kib
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D21607
When communicating with a FUSE server that implements version 7.8 (or older)
of the FUSE protocol, the FUSE_WRITE request structure is 16 bytes shorter
than normal. The protocol version check wasn't applied universally, leading
to an extra 16 bytes being sent to such servers. The extra bytes were
allocated and bzero()d, so there was no information disclosure.
Reviewed by: emaste
MFC after: 3 days
MFC-With: r350665
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D21557
ping(8) uses SO_TIMESTAMP, which attaches a timestamp to each IP datagram at
the time it's received by the kernel. Except that occasionally it doesn't.
Add a check to see whether such a timestamp was actually set before trying
to read it. This fixes segfaults that can happen when the kernel doesn't
attach a timestamp.
The bug has always existed, but prior to r351461 it manifested as an
implausible round-trip-time, not a segfault.
Reported by: pho
MFC after: 3 days
MFC-With: 351461
Don't call arc4random() unconditionally to initialize sc_iss, and
then when syncookies are enabled, just overwrite it with the
return value from from syncookie_generate(). Instead, only call
arc4random() to initialize sc_iss when syncookies are not
enabled.
Note that on a system under a syn flood attack, arc4random()
becomes quite expensive, and the chacha_poly crypto that it calls
is one of the more expensive things happening on the
system. Removing this unneeded arc4random() call reduces CPU from
about 40% to about 35% in my test scenario (Broadwell Xeon, 6Mpps
syn flood attack).
Reviewed by: rrs, tuxen, bz
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D21591
This was used to store the mtime of the source file in a commment in a
generated header file. This is of little-to-no diagnostic value and
the result doesn't even end up in the source tree.
Reported by: arichardson
Reviewed by: arichardson
MFC after: 1 days
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D21605
fdt_is_compatible_strict() inspects the first compatible property.
We need to inspect the following properties for 'riscv'.
ofw_bus_node_is_compatible() does a recursive search.
This patch fixes "Can't find CPU" error message when bootverbose = true.
Submitted by: Nicholas O'Brien (nickisobrien_gmail.com)
Reviewed by: philip, kp
Sponsored by: Axiado
Differential Revision: https://reviews.freebsd.org/D21576
sb_tls_flags, its just the sb_flags. Also the ratelimit
code, now that the defintion is in sockbuf.h, does not
need the ktls.h file (or its predecessor).
Sponsored by: Netflix Inc
