On Linux, read(2) from a timerfd file descriptor returns an unsigned
8-byte integer (uint64_t) containing the number of expirations
that have occurred, if the timer has already expired one or more
times since its settings were last modified using timerfd_settime(),
or since the last successful read(2). That's to say, once we do
a read or call timerfd_settime(), timer fd's expiration count should
be zero. Some Linux applications create timerfd and add it to epoll
with LT mode, when event comes, they do timerfd_settime instead
of read to stop event source from trigger. On FreeBSD,
timerfd_settime(2) didn't set the count to zero, which caused high
CPU utilization.
Submitted by: ankohuu_outlook.com (Shunchao Hu)
Differential Revision: https://reviews.freebsd.org/D28231
This fixes running the du tests with /tmp as tmpfs (which is what we do in the
CheriBSD CI).
Obtained from: CheriBSD
Reviewed By: ngie
Differential Revision: https://reviews.freebsd.org/D28398
This makes roundup2/rounddown2 type- and const-preserving and allows
using it on pointer types without casting to uintptr_t first. Not
performing pointer-to-integer conversions also helps the compiler's
optimization passes and can therefore result in better code generation.
When using it with integer values there should be no change other than
the compiler checking that the alignment value is a valid power-of-two.
I originally implemented these builtins for CHERI a few years ago and
they have been very useful for CheriBSD. However, they are also useful
for non-CHERI code so I was able to upstream them for Clang 10.0.
Rationale from the clang documentation:
Clang provides builtins to support checking and adjusting alignment
of pointers and integers. These builtins can be used to avoid relying
on implementation-defined behavior of arithmetic on integers derived
from pointers. Additionally, these builtins retain type information
and, unlike bitwise arithmetic, they can perform semantic checking on
the alignment value.
There is also a feature request for GCC, so GCC may also support it in
the future: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98641
Reviewed By: brooks, jhb, imp
Differential Revision: https://reviews.freebsd.org/D28332
Commit 5619d49e07 made the getgrgid() call inside bsm work as
intended so we now print "wheel" instead of a numeric 0 in the rgid field.
Reviewed By: markj
Differential Revision: https://reviews.freebsd.org/D28462
The RW fields in this register reset to architecturally unknown values,
so initialize these to the proper rounding and denormal mode.
MFC after: 1 week
Glen (@gjb) noticed that I am haven't mentioned the authors of the
WireGuard device driver in the manual page.
This is commit addressed this commit.
Reviewed by: gjb, brueffer
Differential Revision: https://reviews.freebsd.org/D28464
X-MFC-with: e59d9cb412
This fixes an issue where a private key contained bits that should
have been cleared by the clamping process, but were passed through
to the scalar multiplication routine and resulted in an invalid
public key.
Issue diagnosed (and an initial fix proposed) by shamaz.mazum in
PR 252894.
This fix suggested by Jason Donenfeld.
PR: 252894
Reported by: shamaz.mazum
Reviewed by: dch
MFC after: 3 days
Currently, we encode the full path and compile flags for the build
compiler in libatf. However, these values are not correct when
cross-compiling: For example, when I build on macOS, CC is set to the
host path /usr/local/Cellar/llvm/11.0.0_1/bin/clang-11. This path will
not exist on the target system.
Simplify this logic and use cc/cpp/c++ since those binaries will exist
on the target system unless the compiler was explicitly disabled.
I'm not convinced ATF needs to encode these values, but this is a
minimal fix for these tests when using a non-bootstrapped compiler.
Reviewed By: ngie, brooks
Differential Revision: https://reviews.freebsd.org/D28414
The tests create a 1GB test file and this causes the tests to fail in the
CheriBSD CI setup where we run tests with a tmpfs mount on /tmp. Tmpfs
does not support sparse files and it appears that tmpfs default to creating
a 1GB mount, so there is not enough space to run these tests.
Instead of checking for at least 1GB of free space, this commit skips the
tests on file systems that do not support sparse files.
Reviewed By: kevans
Differential Revision: https://reviews.freebsd.org/D28463
I changed the Makefile to use SRCS instead of LDADD, but since there is
still and absolute path to the source the .o file was created inside the
source directory instead of the build directory.
It would be nice if this was an error/warning by default, but for now just
fix this issue by using .PATH and the base name of the file.
Reported by: cy, peterj
ROUTE_MPATH was added to the GENERIC kernel in r368648.
According to the plan in D27428, it was enabled with `net.route.multipath` sysctl set to 0.
Given enough time has passed, this change enables route multipath by default.
The goal is to ship FreeBSD 13 with multipath turned on.
Reviewed By: donner, olivier
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D28423
kern.proc.proc_td returns the process table with an entry for each
thread. Previously the description included "no threads", presumably
a cut-and-pasteo in 2648efa621.
Description suggested by PauAmma.
PR: 253146
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
to be a true RFC 6598 NAT444 setup, where each network segment (e.g. user,
subnet) can have their own dedicated port aliasing ranges.
Reviewed by: donner, kp
Approved by: 0mp (mentor), donner, kp
Differential Revision: https://reviews.freebsd.org/D23450
DataSN for solicited Data-Out is per-R2T. Since we handle whole R2T
in one go, we don't need to store it anywhere, especially in global
per-command structure. This may allow us to handle multiple R2T per
command at once, if we decide, or may be relax locking.
Rename the second use of that field to io_referenced_task_tag.
MFC after: 1 month
Userspace has OFED build enabled for quite some time, but kernel modules
were not. This is useless config because any userspace IB code requires
kernel support. So enable modules build by default.
Move WITH_OFED to WITHOUT_OFED since defaults are now enabled.
Reviewed by: emaste, hselasky, kevans
MFC after: 3 days
Sponsored by: NVidia Networking / Mellanox Technologies
Differential Revision: https://reviews.freebsd.org/D28460
In /etc/rc.d/linux the mounting paths of procfs, sysfs and devfs
are hardcoded to "/compat/linux". Switching to the content of
compat.linux.emul_path sysctl would allow to switch linuxulator
to different place.
Submitted by: freebsdnewbie_freenet.de
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27807
When a library is opened via fdlopen, it has a null pointer for its path
and so _rtld_bind can crash as a result of passing the null pointer to
basename() (which passes it to strrchr(), which doesn't do a null check).
PR: 253081
Submitted by: theraven
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D28442
In the CheriBSD CI, we run the testsuite with /tmp as tmpfs. This causes
the extattr audit tests to fail since tmpfs does not (yet) support
extattrs. Skip those tests if the target path is on a file system that
does not support extended file attributes.
While touching these two files also convert the ATF_REQUIRE_EQ(-1, ...)
checks to use ATF_REQURIE_ERRNO().
Reviewed By: asomers
Differential Revision: https://reviews.freebsd.org/D28392
This avoids a SIGILL when running these tests on QEMU (which
defaults to a basic amd64 CPU without SSE4.2).
This commit also tests the table-based implementations in addition to
testing the hw-accelerated crc32 versions.
Reviewed By: cem, kib, markj
Differential Revision: https://reviews.freebsd.org/D28395
One common method of EOI'ing an interrupt at the IO-APIC level is to
switch the pin to edge triggering mode and then back into level mode.
That would cause the IRR bit to be cleared and thus further interrupts
to be injected. FreeBSD does indeed use that method if the IO-APIC EOI
register is not supported.
The bhyve IO-APIC emulation code didn't clear the IRR bit when doing
that switch, and was also missing acknowledging the IRR state when
trying to inject an interrupt in vioapic_send_intr.
Reviewed by: grehan
Differential revision: https://reviews.freebsd.org/D28238
After modifying a redirection entry only try to inject an interrupt if
the pin is in level mode, pins in edge mode shouldn't take into
account the line assert status as they are triggered by edge changes,
not the line status itself.
Reviewed by: grehan
Differential revision: https://reviews.freebsd.org/D28237
vioapic_send_intr does already check whether the pin is masked before
injecting the interrupt, there's no need to do it in vioapic_write
also.
No functional change intended.
Reviewed by: grehan
Differential revision: https://reviews.freebsd.org/D28236
The conscious decision was made not to perform any indentation or
whitespace cleanup while cleaning out old redunant #ifdefs. The
reason for this was to avoid confusing future readers of history and
diffs with cosmetic changes, making bisection of any possible bugs
introduced more difficult. This commit cleans up the whitespace
detritus left behind from the previous #ifdef cleanup commits.
MFC after: 1 week
In the old days when K&R C and STD C were each in use a workaround
(read hack) was required to allow the same code to work on each
without modification. All C compilers support STD C. We can finally
put the __P prototype to rest.
MFC after: 1 week
A few shared libraries in the base system link against ncurses. An
upgrade from a 12.x host to 13 results in ABI breakage for existing
binaries since the newer versions of these libraries link against the
newer ncurses while the binary itself links against the older ncurses.
For example, dialog4ports built on 12.x sometimes crashes on 13 since
it depends on libdialog which links against ncurses internally.
MFC after: 3 days
Reviewed by: kib, delphij
Differential Revision: https://reviews.freebsd.org/D28448
When checking if the newly opened file is the same as the old one,
we need to fstat() the new file descriptor, not the old one again.
Reviewed by: glebius
Sponsored by: Netflix
As we get started with no memory allocator, we set up static font data
for font passed by loader (if there is any). At this time, we also must
set refcount 1, and refcount will get incremented in cnprobe() callback.
At some point the memory allocator will be available, and we will set up
properly allocated font data, but we should not disturb the refcount.
PR: 253147
Update zfs_config.h to match latest merge in FreeBSD
The version string is declared as 2.0.0-FreeBSD_gf11b09dec to provide
more information about the loaded module:
- the OpenZFS version in base is 2.0
- we are using the in tree-module ("FreeBSD")
- the last merged OpenZFS git revision ("gf11b09dec")
With future merges the git revision tag should be updated.
As we are merging from OpenZFS master branch and already include features
like dRAID, referencing patchlevel releases (2.0.1, 2.0.2) is pointless.
Reviewed by: freqlabs
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D28447
Verify that the option is passed, error out if it's not.
The problem can be trivially triggered with `ipfw add allow ext6hdr`.
PR: 253169
Reviewed by: kp@
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D28447
Memory and PCI resources are freed with no particular order. This could
cause use-after-frees when detaching following a failed attach. For
instance, iflib_tx_structures_free() frees ctx->ifc_txqs[] but
iflib_tqg_detach() attempts to access this array. Similarly, adapter
queues gets freed by IFDI_QUEUES_FREE() but IFDI_DETACH() attempts to
access adapter queues to free PCI resources.
MFC after: 2 weeks
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D27634
All callers of bi_load64 pass 0 as the addr parameter, so just remove
it and always calculate the last load address from the module chain.
No functional change.
Sponsored by: Citrix Systems R&D
Reviewed by: tsoome, imp
Differential revision: https://reviews.freebsd.org/D28412
libzfs has a dependency on libcrypto. This causes a buildworld link
failure when WITHOUT_OPENSSL/WITHOUT_CRYPT is set.
This dependency was added implicitly by the switch to OpenZFS, and
explicitly in 40d0fd2875 and cd568e2b1b.
PR: 252841
Reviewed by: kevans, freqlabs
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D28431
The existing implementation relies on each trap handler saving a normal
stack frame record, which is a waste of time and space when we're
already saving a trapframe to the stack. It's also wrong as it currently
saves LR not ELR.
Instead of patching it up, rewrite it based on the RISC-V implementation
with inspiration from the amd64 implementation for how to handle
vectored traps to provide an improved implementation. This includes
compressing the information down to one line like other architectures
rather than the highly-verbose old form that repeats itself by printing
LR and FP in one frame only to print them as PC and SP in the next. It
also includes printing out actually useful information about the traps
that occurred, though FAR is not saved in the trapframe so we cannot
print it (in general it can be clobbered between when the trap happened
and now), only ESR.
The AAPCS also allows the stack frame record to be located anywhere in
the frame, not just the top, so the caller's SP is not at a fixed offset
from the callee's FP like on almost all other architectures in
existence. This means there is no way to derive the caller's SP in the
unwinder, and so we have to drop that bit of (unused) state everywhere.
Reviewed by: jhb, markj
Differential Revision: https://reviews.freebsd.org/D28026
