This mode was added in r362496. Rename it to make the meaning more
clear.
PR: 247306
Suggested by: rpokala
Submitted by: Ali Abdallah <ali.abdallah@suse.com>
MFC with: r362496
Adding `kern.features.witness` helps expose whether or not the kernel has
`options WITNESS` enabled, so the `feature_present(3)` API can be used
to query whether or not witness(9) is built into the kernel.
This support is helpful with userspace applications (generally speaking,
tests), as it can be queried to determine whether or not tests related
to WITNESS should be run.
MFC after: 1 week
Reviewed by: cem, darrick.freebsd_gmail.com
Differential Revision: https://reviews.freebsd.org/D25302
Sponsored by: DellEMC Isilon
Thanks to work done in the NetBSD clang-format project. No functional change.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D25428
clang-format is enabled conditional on either WITH_CLANG_EXTRAS or
WITH_CLANG_FORMAT. Some sources in libclang are build conditional on
either rule, and obviously the clang-format binary itself depends on the
rule.
clang-format could still use a manual page.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D25427
This temporary mapping will become optional. Booting via loader(8)
means that the DTB will have already been copied into the kernel's
staging area, and is therefore covered by the early KVA mappings.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D24911
In locore, we must detect and handle different arguments passed by
loader(8) compared to what we recieve when booting directly via SBI
firmware. Currently we receive the hart ID in a0 and a pointer to the
device tree blob in a1. loader(8) provides only a pointer to its
metadata in a0.
The solution to this is to add an additional entry point, _alt_start.
This will be placed first in the .text section, so SBI firmware will
enter here, and jump to the common pagetable setup shortly after. Since
loader(8) understands our ELF kernel, it will enter at the ELF's entry
address, which points to _start. This approach leads to very little
guesswork as to which way we booted.
Fix-up initriscv() to parse the loader's metadata, continuing to use
fake_preload_metadata() in the SBI direct boot case.
Reviewed by: markj, jrtc27 (asm portion)
Differential Revision: https://reviews.freebsd.org/D24912
Proper TCP Cubic operation requires the knowledge
of the maximum congestion window prior to the
last congestion event.
This restores and improves a bugfix previously added
by jtl@ but subsequently removed due to a revert.
Reported by: chengc_netapp.com
Reviewed by: chengc_netapp.com, tuexen (mentor)
Approved by: tuexen (mentor), rgrimes (mentor)
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D25133
The use of t_rcvtime as proxy for the last transmission
fails for transactional IO, where the client requests
data before the server can respond with a bulk transfer.
Set aside a dedicated variable to actually track the last
locally sent segment going forward.
Reported by: rrs
Reviewed by: rrs, tuexen (mentor)
Approved by: tuexen (mentor), rgrimes (mentor)
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D25016
Some of the NetBSD contributed tests are gated behind the
__HAVE_LONG_DOUBLE flag. This flag seems to be defined only for
platforms whose long double is larger than their double. I could not
find this explicitly documented anywhere, but it is implied by the
definitions in NetBSD's sys/arch/${arch}/include/math.h headers, and the
following assertion from the UBSAN code:
#ifdef __HAVE_LONG_DOUBLE
long double LD;
ASSERT(sizeof(LD) > sizeof(uint64_t));
#endif
RISC-V has 128-bit long doubles, so enable the tests on this platform,
and update the comments to better explain the purpose of this flag.
Reviewed by: ngie
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25419
The ACPI Specification defines a Generic Address Structure (GAS),
which is used to describe UART controller register layout in the
SPCR table. The driver responsible for parsing it (uart_cpu_acpi)
wrongly associates the Access Size field to the uart_bas's regshft
and the register BitWidth to the regiowidth - according to
the definitions it should be opposite.
This problem remained hidden most likely because the majority of platforms
use 32-bit registers (BitWidth) which are accessed with the according
size (Dword). However on Marvell Armada 8k / Cn913x platforms,
the 32-bit registers should be accessed with Byte granulity, which
unveiled the issue.
This patch fixes above by proper values assignment and slightly improved
parsing.
Note that handling of the AccessWidth set to EFI_ACPI_6_0_UNDEFINED is
needed to work around a buggy SPCR table on EC2 x86 "bare metal" instances.
Reviewed by: manu, imp, cperciva, greg_unrelenting.technology
Obtained from: Semihalf
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D25373
Update 4.2.8p14 --> 4.2.8p15
Summary: Systems that use a CMAC algorithm in ntp.keys will not release
a bit of memory on each packet that uses a CMAC keyid, eventually causing
ntpd to run out of memory and fail. The CMAC cleanup from
https://bugs.ntp.org/3447, part of ntp-4.2.8p11, introduced a bug whereby
the CMAC data structure was no longer completely removed.
MFC after: 3 days
Security: NTP Bug 3661
These are picked out by the amd64-gcc6 build; time() is declared in <time.h>
and delay() is declared in <bootstrap.h>. These are the correct places for
these in stand/, so remove the duplicate declarations and make sure the
delay() consumer in libefi that depended on the extra delay() declaration
includes <bootstrap.h>.
MFC after: 1 week
RB_CLEAR_NODE. But it is not an expression, and ought not to be
enclosed in parens. Remove them.
Approved by: markj
Differential Revision: https://reviews.freebsd.org/D25421
The change from "slave" processes to "minion" processes to "worker"
processes left some less-than-coherent names:
1. "enslave" turned into the ungrammatical "enworker".
2. "slp" (SLave Pointer) turned into "mlp" (Minion [L] Pointer?).
Convert "enworker" to "create_workers" (the function in question forks
off 3 worker processes), and replace "mlp" with "wp" (Worker Pointer)
and "tmlp" with "twp" (Temporary Worker Pointer).
Reviewed by: imp, cem, danfe
Differential Revision: https://reviews.freebsd.org/D25403
In the current iflib_netmap_rxsync, there is nothing that prevents
kring->nr_hwtail to overrun kring->nr_hwcur during the descriptor
import phase. This may cause errors in netmap applications, such as:
em1 RX0: fail 'head < kring->nr_hwcur || head > kring->nr_hwtail'
h 795 c 795 t 282 rh 795 rc 795 rt 282 hc 282 ht 282
Reviewed by: gallatin
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25252
pointers. Define RB_SWAP_CHILD to replace the child of a parent with
its twin, and use it in 4 places. Use RB_SET in rb_link_node to remove
the only linuxkpi reference to color, and then drop color- and
parent-related definitions that are defined and used only in rbtree.h.
This is intended to be entirely cosmetic, with no impact on program
behavior, and leave RB_PARENT and RB_SET_PARENT as the only ways to
read and write rb parent pointers.
Reviewed by: markj, kib
Tested by: pho
Differential Revision: https://reviews.freebsd.org/D25264
Ports bsd.kmod.mk explicitly sets MK_KERNEL_SYMBOLS=no to prevent auto-
splitting of debuginfo from kernel modules. If that knob is set, don't
split out a .ko.debug and .ko from .ko.full; just generate a .ko with
debuginfo and leave it be.
Otherwise, with DEBUG_FLAGS set and MK_KERNEL_SYMBOLS=no, we would helpfully
strip out the debuginfo from the .ko.full and then not install it. That is
not the desired result a WITH_DEBUG port kmod build.
Reviewed by: emaste, jhb
Differential Revision: https://reviews.freebsd.org/D24835
Document that RISC-V supports multiple page sizes: 4K, 2M, and 1G.
RISC-V's long double is always 128-bits wide, therefore quad precision.
Mention __riscv_float_abi_soft, which can be used to differentiate between
riscv64 and riscv64sf in userland code.
MFC after: 3 days
Sort(1)'s radixsort implementation was broken for multibyte LC_CTYPEs in at
least two ways:
* In actual radix sort, it would only bucket the least significant
byte from each wchar, ignoring the 24 most-significant bits of each
unicode character.
* In degenerate cases / "fast paths," it would fall back to another
sorting algorithm (default: mergesort) with a bogus comparator
offset. The string comparison functions in sort(1) take an offset
in units of the operating character size. However, radixsort was
passing an offset in units of bytes. The byte offset must be
divided by sizeof(wchar_t).
This revision addresses both discovered issues.
Some example testcases:
$ (echo 耳 ; echo 脳 ; echo 耳) | \
LC_CTYPE=ja_JP.UTF-8 LC_COLLATE=C LANG=C sort --radixsort --debug
$ (echo 耳 ; echo 脳 ; echo 耳) | \
LC_CTYPE=C LC_COLLATE=C LANG=C sort --radixsort --debug
$ (for i in $(jot 34); do echo 耳耳耳耳耳; echo 耳耳耳耳脳; echo 耳耳耳耳脴; done) | \
LC_CTYPE=ja_JP.UTF-8 LC_COLLATE=C LANG=C sort --radixsort --debug
PR: 247494
Reported by: knu
MFC after: I do not intend to, but parties interested in stable might want to
OpenZFS generates events with a "zio_timestamp" field, which gets mistaken for
"timestamp" by libdevdctl due to imprecise string matching. Then later it is
assumed a "timestamp" field exists when it doesn't and an exception is thrown.
Add a space to the search string so we match exactly "timestamp" rather than
anything with that as a suffix.
Approved by: mav (mentor)
MFC after: 3 days
Sponsored by: iXsystems, Inc.
aout support in ldconfig hasn't been required since FreeBSD 2.x.
Anyone still using FreeBSD 2 shared libraries can use a FreeBSD 2
ldconfig to generate aout ldconfig hints.
Reviewed by: dim, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24883
The current message when bootstapping pkg fails for any reason implies that pkg
is not available. We have the error code from fetch so if bootstrap failed due
to address resolution say so.
Reviewed by: bapt, bz
Approved by: bz (co-mentor)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D25323
