I was investigating libarchive test failures on CheriBSD and it turns out
we get a reproducible SIGBUS for test_archive_m5, etc. Debugging this shows
that libarchive and the tests disagree when it comes to the definition of
archive_md5_ctx: libarchive assumes it's the OpenSSL type whereas the test
use the libmd type. The latter is not necessarily aligned enough to store
a pointer (16 bytes for CHERI RISC-V), so we were crashing when storing
EVP_MD_CTX* to an 8-byte-aligned archive_md5_ctx.
To avoid problems like this in the future, factor out the common compiler
flags into a Makefile.inc and include that from the tests Makefile.
Reviewed By: lwhsu
Differential Revision: https://reviews.freebsd.org/D26469
The language id of String Descriptors in usb mouse is
0x0904, while the spec require 0x0409 (English - United States)
Submitted by: Wanpeng Qian
Reviewed by: grehan
Approved by: grehan (#bhyve)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D26472
Hardware assistance includes checksumming (tx and rx), TSO, and RSS on
the inner traffic in a VXLAN tunnel.
Relnotes: Yes
Sponsored by: Chelsio Communications
This lets a VXLAN pseudo-interface take advantage of hardware checksumming (tx
and rx), TSO, and RSS if the NIC is capable of performing these operations on
inner VXLAN traffic.
A VXLAN interface inherits the capabilities of its vxlandev interface if one is
specified or of the interface that hosts the vxlanlocal address. If other
interfaces will carry traffic for that VXLAN then they must have the same
hardware capabilities.
On transmit, if_vxlan verifies that the outbound interface has the required
capabilities and then translates the CSUM_ flags to their inner equivalents.
This tells the hardware ifnet that it needs to operate on the inner frame and
not the outer VXLAN headers.
An event is generated when a VXLAN ifnet starts. This allows hardware drivers to
configure their devices to expect VXLAN traffic on the specified incoming port.
On receive, the hardware does RSS and checksum verification on the inner frame.
if_vxlan now does a direct netisr dispatch to take full advantage of RSS. It is
not very clear why it didn't do this already.
Future work:
Rx: it should be possible to avoid the first trip up the protocol stack to get
the frame to if_vxlan just so it can decapsulate and requeue for a second trip
up the stack. The hardware NIC driver could directly call an if_vxlan receive
routine for VXLAN traffic instead.
Rx: LRO. depends on what happens with the previous item. There will have to to
be a mechanism to indicate that it's time for if_vxlan to flush its LRO state.
Reviewed by: kib@
Relnotes: Yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D25873
This will be used by some upcoming changes to if_vxlan(4). RFC 7348 (VXLAN)
says that the UDP checksum "SHOULD be transmitted as zero. When a packet is
received with a UDP checksum of zero, it MUST be accepted for decapsulation."
But the original IPv6 RFCs did not allow zero UDP checksum. RFC 6935 attempts
to resolve this.
Reviewed by: kib@
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D25873
These are similar to the existing VLAN capabilities.
Reviewed by: kib@
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D25873
These are being added to support VXLAN but will work for GENEVE as well.
ENCAP_RSVD1 will likely become ENCAP_GENEVE in the future.
The size of struct mbuf does not change and that means this change can be MFC'd.
If size wasn't a constraint a cleaner way may have been to add inner_csum_flags
and inner_csum_data to go with csum_flags and csum_data.
Reviewed by: kib@
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D25873
As of r365829, any given base distribution set will now include the /etc/ssl
symlinks that this rehash would've otherwise installed. This extra step is
no longer required.
MFC after: 1 week
X-MFC-With: r365837
[X86] Place new constant node in topological order in
X86DAGToDAGISel::matchBitExtract
Fixes PR47482
This should fix 'Assertion failed: (Op->getNodeId() != -1 && "Node has
already selected predecessor node"), function DoInstructionSelection,
file
/usr/src/contrib/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp,
line 1149' when compiling part of the project_painter project, while
targeting the bdver2 (or higher) CPU.
Reported by: jkim
MFC after: 6 weeks
X-MFC-With: r364284
[Sema] Introduce BuiltinAttr, per-declaration builtin-ness
Instead of relying on whether a certain identifier is a builtin,
introduce BuiltinAttr to specify a declaration as having builtin
semantics.
This fixes incompatible redeclarations of builtins, as reverting the
identifier as being builtin due to one incompatible redeclaration
would have broken rest of the builtin calls.
Mostly-compatible redeclarations of builtins also no longer have
builtin semantics. They don't call the builtin nor inherit their
attributes.
A long-standing FIXME regarding builtins inside a namespace enclosed
in extern "C" not being recognized is also addressed.
Due to the more correct handling attributes for builtin functions are
added in more places, resulting in more useful warnings.
Tests are updated to reflect that.
Intrinsics without an inline definition in intrin.h had `inline` and
`static` removed as they had no effect and caused them to no longer
be recognized as builtins otherwise.
A pthread_create() related test is XFAIL-ed, as it relied on it being
recognized as a builtin based on its name.
The builtin declaration syntax is too restrictive and doesn't allow
custom structs, function pointers, etc.
It seems to be the only case and fixing this would require reworking
the current builtin syntax, so this seems acceptable.
Fixes PR45410.
Reviewed By: rsmith, yutsumi
Differential Revision: https://reviews.llvm.org/D77491
This should fix 'Assertion failed: (i < getNumParams() && "Illegal
param #"), function getParamDecl, file
/usr/src/contrib/llvm-project/clang/include/clang/AST/Decl.h, line 2430'
when building the graphics/pgplot port.
Note that there may also have been other ports which triggered this
assertion, if they redeclare standard functions with incompatible
arguments.
Reported by: zeising
MFC after: 6 weeks
X-MFC-With: r364284
The Cirrus-CI-provided working tree is owned by root. Leave that as is
for simplicity but build as an unprivileged user; this tests building
with an unmodifiable source tree as a side effect.
Continue running the smoke test as root for now, as it failed when run
as an unprivileged user - pkg reported "Fail to chmod
/usr/bin/.pkgtemp.lpq.dUHpEqPGJ9pq:Operation not permitted"
Sponsored by: The FreeBSD Foundation
Change the zone setup:
- Allow slabs to be returned to the OS
- Set the number of slots to the max devctl will queue before discarding
- Reserve 2% of the max (capped at 100) for low memory allocations
- Disable per-cpu caching since we don't need it and we avoid some pathologies
Change the alloation strategiy a bit:
- If a normal allocation fails, try to get the reserve
- If a reserve allocation fails, re-use the oldest-queued entry for storage
- If there's a weird race/failure and nothing on the queue to steal, return NULL
This addresses two main issues in the old code:
- If devd had died, and we're generating a lot of messages, we have an
unbounded leak. This new scheme avoids the issue that lead to this.
- The MPASS that was 'sure' the allocation couldn't have failed turned out
to be wrong in some rare cases. The new code doesn't make this assumption.
Since we reserve only 2% of the space, we go from about 1MB of
allocation all the time to more like 50kB for the reserve.
Reviewed by: markj@
Differential Revision: https://reviews.freebsd.org/D26448
Don't permit setting the exception bitmap or VMCS entry interrupt
information. These are not generally useful to set. If it is needed
in the future, dedicated pseudo registers can be added for these that
would be used with vm_set_register().
Discussed with: grehan
MFC after: 1 week
Since r347532 (merged to stable/12) we only count user-wired pages
towards the system limit. However, we now also treat pages wired by
hypervisors (bhyve and virtualbox) as user-wired, so starting VMs with
large amounts of RAM tends to fail due to the low limit.
The purpose of the limit is to provide a seatbelt, not to impose some
policy on the use of wired memory. Thus, increase the default limit to
allow reasonable VM configurations to work without tuning.
Reviewed by: kib
Discussed with: dougm
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26424
Contrary to my belief, installworld is not sufficient for getting certs
installed into VM images. Promote the rehash to both installworld and
distributeworld (notably: not stageworld) and rehash the base distdir so we
end up with /etc/ssl/certs populated in the base dist archive. A future
commit will remove the rehash from bsdinstall, which doesn't really need to
happen if they're installed into base.txz.
While here, fix a minor typo: s/CERTCLTFLAGS/CERTCTLFLAGS/
MFC after: 1 week
Use of ranlib or lorder is no longer necessary with current linkers
(probably anything newer than ~1990) and ar's ability to create an object
index and symbol table in the archive.
Currently the build system uses lorder+tsort to sort the .o files in
dependency order so that a single-pass linker can use them. However,
we can use the -s flag to ar to add an index to the .a file which makes
lorder unnecessary.
Running ar -s is equivalent to running ranlib afterwards, so we can also
skip the ranlib invocation.
Similarly, we don't have to pass the .o files for shared libraries in
dependency order since both ld.bfd and ld.lld will correctly resolve
references between the .o files.
This removes many fork()+execve calls for each library so should speed up
builds a bit. Additionally lorder.sh uses a regular expression that is not
supported by the macOS libc or glibc and results in many warnings when
cross-building (see D25989).
There is one functional change: lorder.sh removed duplicated .o files
from the linker command line which now no longer happens. I fixed the duplicates
in the base system in r364649. I also checked the ports tree for uses of
bsd.lib.mk and found one duplicate source file which I fixed in r548168.
Most ports use CMake/autotools rather than bsd.lib.mk but if this breaks any
ports that I missed in my search please let me know.
Avoiding the shell script actually speeds up the linking step noticeably: I
measured how long it takes to rebuild the .a and .so files for lib/libc using a
basic benchmark: `rm $LIBC_OBJDIR/*.so* $LIBC_OBJDIR/*.a* && /usr/bin/time make -DWITHOUT_TESTS -s > /dev/null`
Without this change ~4.5 seconds and afterwards ~3.1 seconds.
Looking at truss -cf output we can see that the number fork() system
calls goes down from 27 to 12 (and the speedup while tracing is more
noticeable: 81 seconds -> 65 seconds).
See also https://www.gnu.org/software/coreutils/manual/html_node/tsort-background.html
for some more background:
This whole procedure has been obsolete since about 1980, because Unix
archives now contain a symbol table (traditionally built by ranlib, now
generally built by ar itself), and the Unix linker uses the symbol table
to effectively make multiple passes over an archive file.
Or alternatively https://www.unix.com/man-page/osf1/1/lorder/:
The lorder command is essentially obsolete. Use the following command in
its place: % ar -ts file.a
Reviewed By: emaste, imp, dim
Differential Revision: https://reviews.freebsd.org/D26044
This is followup to r365477.
If pre-formatted device has GPT and a partition covering
last available LBAs and the device is attached using
a bridge reducing amount of LBAs, then it could be not enough
forcing GEOM to use primary GPT. Also, we should make it possible
to recover GPT and this requires either deleting or resizing the partition.
This change enables "gpart delete" and "gpart resize" commands
on corrupted GPT with following "gpart recover".
It still does not allow modifying corrupted GPT without
preliminary setting sysctl kern.geom.part.check_integrity=0
For example:
# gpart show da0
=> 34 3906963389 da0 GPT (1.8T) [CORRUPT]
34 262144 1 ms-reserved (128M)
262178 2014 - free - (1.0M)
264192 3906764943 2 freebsd-swap (1.8T)
# gpart resize -i 2 -s 3900000000 da0
# gpart recover da0
Reported by: Alex Korchmar
MFC after: 3 days
This was originally introduced back in r360833, and subsequently reverted
because it was broken for -DNO_ROOT builds and it may not have been the
correct place for it.
While debatably this may still not be 'the correct place,' it's much cleaner
than scattering rehashes all throughout the tree. brooks has fixed the issue
with -DNO_ROOT by properly writing to the METALOG in r361397.
Do note that this is different than what was originally committed; brooks
had revisions in D24932 that made it actually use the revised unprivileged
mode and write to METALOG, along with being a little more friendly to
foreign crossbuilds and just using the certctl in-tree.
With this change, I believe we should now have a populated /etc/ssl/certs in
the VM images.
MFC after: 1 week
Both before and after job control adjustments.
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D26416
Orphans affect job control state, we must account for them when
changing pg_jobc.
Instead of p_pptr, use proc_realparent() to get parent relevant for
job control.
Use correct calculation of the parent for exiting process. For jobc
purposes, we must use realparent, but if it is also exiting, we should
fall to reaper, then recursively find non-exiting reaper.
Reported by: trasz
PR: 249257
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D26416
Use ddb pager.
Make lines more compact.
Eliminate unneeded casts.
Print more job-control related info when reporting process group.
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D26416
Split TMPFS_NODE_ACCCESSED bit into dedicated byte that can be updated
atomically without locks or (locked) atomics.
tn_update_getattr() change also contains unrelated bug fix.
Reported by: lwhsu
PR: 249362
Reviewed by: markj (previous version)
Discussed with: mjg
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D26451
