When allocating a replacement page we must clear VPO_UNMANAGED since we
only ever reclaim pages from managed objects. vm_page_replace() does
not handle this for us.
Sprinkle some assertions to help catch this sort of issue.
Reported by: pho
Reviewed by: alc, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D22868
Pick 2d6d099fed05b1509e81e54458516528bfbbf38d from upstream jemalloc:
Fix GCC-9.1 warning with macro GET_ARG_NUMERIC
GCC-9.1 reports following error when trying to compile file
src/malloc_io.c and with CFLAGS='-Werror' :
src/malloc_io.c: In function ‘malloc_vsnprintf’:
src/malloc_io.c:369:2: error: case label value exceeds maximum value for type [-Werror]
369 | case '?' | 0x80: \
| ^~~~
src/malloc_io.c:581:5: note: in expansion of macro ‘GET_ARG_NUMERIC’
581 | GET_ARG_NUMERIC(val, 'p');
| ^~~~~~~~~~~~~~~
...
<snip>
cc1: all warnings being treated as errors
make: *** [Makefile:388: src/malloc_io.sym.o] Error 1
The warning is reported as by default the type 'char' is 'signed char'
and or-ing 0x80 will turn the case label char negative which will be
beyond the printable ascii range (0 - 127).
The patch fixes this by explicitly casting the 'len' variable as
unsigned char' inside the 'switch' statement so that value of
expression " '?' | 0x80 " falls within the legal values of the
variable 'len'.
Discussed with: jasone (maintainer)
Sponsored by: Dell EMC Isilon
g++9 now warns about having defined an assignment operator but using the
default copy constructor, or vice versa. Avoid the issue in libdevdctl
by just using the default assignment operator too.
Reviewed by: asomers, dim
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22887
gcc9 grew a new warning for unbounded allocas, such as the one in
dt_options_load. Remove both uses of alloca in dt_options.c.
Reviewed by: markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22880
This avoids gcc9 warning about unaligned access to the structure when
casting to uint16_t pointer type.
Submitted by: imp
Reviewed by: imp
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22888
Disable the warning for WARNS <= 3. This is lame, but it's what we
already do for the clang build.
Reviewed by: dim
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22889
This is lame, but it's what we already do for the clang build. We take
misaligned pointers into network header structures in many places.
Reviewed by: ian
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22876
This is an unfortunate instance where the __has_attribute check does
not function usefully. Gcc does have the attribute, but for gcc it only
applies to functions, not variables, and trying to apply it to a
variable generates Wattribute. So far we only apply the attribute to
variables. Only enable the attribute for clang, for now.
Reviewed by: Anton Rang <rang at acm.org>
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22875
Update all the references to NFSv4.1, so that they apply to NFSv4.1 and
NFSv4.2. Also, change the MDS->DS mounts to use NFSv4.2, so that both
versions of the protocol can be used against the server with pNFS enabled.
This is a content change.
Include references to NFSv4.2 and Flexible File layout, plus clarify
when vfs.nfsd.flexlinuxhack needs to be set for Linux pNFS clients.
Also update the man page to reflect the addition of SpaceUsed to the
attributes stored in the extended attribute on the MDS (r354158).
This is a content change.
Include references to NFSv4.2 and associated RFCs.
Also clarify when a Linux client needs to set vfs.nfsd.flexlinuxhack if
a pNFS server is in use.
This is a content change.
The implementation was landed in r344913 and has had some bake time (at
least on my personal systems). There is some discussion of the motivation
for defaulting to this cipher as a PRF in the commit log for r344913.
As documented in that commit, administrators can retain the prior (AES-ICM)
mode of operation by setting the 'kern.random.use_chacha20_cipher' tunable
to 0 in loader.conf(5).
Approved by: csprng(delphij, markm)
Differential Revision: https://reviews.freebsd.org/D22878
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.
Fix some style in if_addgroup(). No functional change intended.
Reviewed by: hselasky
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D22892
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo". That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.
Updating the vendor area to match this layout is next.
This effectively reverts r355935, but is functionally equivalent. We gain no
benefit from storing the index and repeatedly fetching the keyboard with
`kbd_get_keyboard` when we need it. We'll be notified when it's going away
so we can clean up the pointer.
All existing references were trivially converted. Only once instance
actually needed the index.
As far as I can tell, these are an artifact of times when linker sets
couldn't be empty, otherwise the kernel build would fail due to unresolved
symbols. hselasky fixed this in r268138, and I've audited the kbd portions
to make sure nothing would blow up due to the empty linker set and
successfully compiled+ran a kernel with no keyboard support at all.
Kill them off now since they're no longer required.
MFC after: 1 week
With absolutely no keyboards attached and no kbdmux in kernel, we descend
down this error path. 0 is a valid keyboard index, so leaving
vd->vd_keyboard at 0 when there's no keyboard found is objectively wrong as
later attachment of a keyboard will fail -- it gets index 0, and vt thinks
it's already using that keyboard.
This is decidedly the corniest of corner cases, but it's easy enough to get
correct that we should do so.
Tested in a kernel without atkbdc, atkbd, psm, kbdmux, ukbd, hyperv then
loading ukbd post-boot and attaching a usb keyboard.
reported length.
Thanks to Natalie Silvanovich from Google for finding one of these
issues in the SCTP userland stack and reporting it.
MFC after: 1 week
Flip the knob added in r349154 to "enabled." The commit message from that
revision and associated code comment describe the rationale, implementation,
and motivation for the new default in detail. I have dog-fooded this
configuration on my own systems for six months, for what that's worth.
For end-users: the result is just as secure. The benefit is a faster, more
responsive system when processes produce significant demand on random(4).
As mentioned in the earlier commit, the prior behavior may be restored by
setting the kern.random.fortuna.concurrent_read="0" knob in loader.conf(5).
This scales the random generation side of random(4) somewhat, although there
is still a global mutex being shared by all cores and rand_harvestq; the
situation is generally much better than it was before on small CPU systems,
but do not expect miracles on 256-core systems running 256-thread full-rate
random(4) read. Work is ongoing to address both the generation-side (in
more depth) and the harvest-side scaling problems.
Approved by: csprng(delphij, markm)
Tested by: markm
Differential Revision: https://reviews.freebsd.org/D22879
If the devmap entry uses the upper 32 bits they wouldn't be printed in
devmap_dump_table(). This fixes that.
Submitted by: Nicholas O'Brien <nickisobrien_gmail.com>
Sponsored by: Axiado
The OpenCores I2C IP core can be found on any bus. Split out the PCI
bus specifics into their own file, only compiled on systems with PCI.
Reviewed by: kp
Sponsored by: Axiado
The SiFive FU540 Power Reset Clocking Interrupt block contains a PLL
that turns the input crystal (33.3MHz) into a 1-1.5GHz clock.
This clock in turn is divided by two to produce the tlclk, which is fed
into devices such as the SPI and I2C controllers.
Register a new clock device for the PRCI so that those devices can
read the correct clock through the clk framework.
Submitted by: kp
Sponsored by: Axiado
In r268055, powerpc64 was special cased regarding linker sets to not mark
the function pointer as 'const'.
This appears to have been done to ensure the compiler generates the function
descriptors correctly. When non-const, the function descriptors will end up
in the .data.rel.local section, and the linker set symbols will get
relocations pointing to them there.
Since function pointers on ELFv2 are "just" pointers like other platforms,
we can leave them const like they are on every other platform.
Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D22796
We by definition cannot trace the stack of such a thread. Also remove a
redundant stack_zero() call in the SIGINFO handler, the stack structure
is cleared by the MD stack_capture().
Sponsored by: The FreeBSD Foundation
compilation error because, without _KERNEL defined, the macro
TMPFS_VALIDATE_DIR is invoked, but never defined. User-level software
that includes sys/tmpfs.h must define _KERNEL to make the definition
of TMPFS_VALIDATE_DIR visible.
This change puts all the inline functions that, directly or
indirectly, invoke MPASS into the scope of the _KERNEL block, allowing
many user-space includers of <sys/tmpfs.h> to stop defining _KERNEL.
Reviewed by: alc, kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D22874
