First, r204494 introduced dpcpu_off in struct __kvm and it was allocated
from _kvm_dpcpu_init() but it was not free(3)'ed from kvm_close(3).
Second, r291406 introduced kvm_nlist2(3) and converted kvm_nlist(3) to
use the new function but it did not free the temporary buffer.
Also, check possible calloc(3) failure while I am in the neighborhood.
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D29019
Maintain a cache of physically contiguous runs of pages for use as
output buffers when software encryption is configured and in-place
encryption is not possible. This makes allocation and free cheaper
since in the common case we avoid touching the vm_page structures for
the buffer, and fewer calls into UMA are needed. gallatin@ reports a
~10% absolute decrease in CPU usage with sendfile/KTLS on a Xeon after
this change.
It is possible that we will not be able to allocate these buffers if
physical memory is fragmented. To avoid frequently calling into the
physical memory allocator in this scenario, rate-limit allocation
attempts after a failure. In the failure case we fall back to the old
behaviour of allocating a page at a time.
N.B.: this scheme could be simplified, either by simply using malloc()
and looking up the PAs of the pages backing the buffer, or by falling
back to page by page allocation and creating a mapping in the cache
zone. This requires some way to save a mapping of an M_EXTPG page array
in the mbuf, though. m_data is not really appropriate. The second
approach may be possible by saving the mapping in the plinks union of
the first vm_page structure of the array, but this would force a vm_page
access when freeing an mbuf.
Reviewed by: gallatin, jhb
Tested by: gallatin
Sponsored by: Ampere Computing
Submitted by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D28556
It closes tiny race when the flag could be set between being cleared
and the space is checked, that would create us some more work. The
flag setting is protected by both locks, so we can clear it in either
place, but in between both locks are dropped.
MFC after: 1 week
init(8) sets the "daemon" login class without specifying a pw
entry (so no substitutions are done on the variables). service(8)'s
use of env -L had the effect of specifying root's pw entry, with two
effects: getpwnam and getpwuid are being called, which may not be
entirely safe depending on what nsswitch is up to and what stage of
boot we are at, and substitutions would have been done.
Fix by teaching env(8) to allow -L -/classname to set the class
environment with no pw entry at all specified, and use it in
service(8).
PR: 253959
I think it allowed to avoid some TX thread wakeups while the socket
buffer is full. But add there another options if ic_check_send_space
is set, which means socket just reported that new space appeared, so
it may have sense to pull more data from ic_to_send for better TX
coalescing.
MFC after: 1 week
Ranges use the function get_number, which means that ranges of names
are supported and indeed always have been, righ back to the initial
import.
PR: docs/253969
Reported by: Ben Bullock <benkasminbullock@gmail.com>
Previously the spi_ranges_cnt stored the table size in bytes
instead of the number of elements. Fix that.
Reviewed by: mmel
Submitted by: Zyta Szpak <zr@semihalf.com>
Obtained from: Semihalf
Sponsored by: Marvell
To trace leaf asm functions we can insert a single nop instruction as
the first instruction in a function and trigger off this.
Reviewed by: gnn
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D28132
This reduces the memory mapped to be closer to the minimal memory
needed to enable the MMU.
Reviewed by: mmel
Sponsored by: Innovate UK
Differential Revision:://reviews.freebsd.org/D27765
This makes bi_load_efi_data cleaner to add common acpi setup code.
Reviewed by: imp, tsoome
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D28936
Apparently GCC defines NULL to 0 in C++11 mode (instead of nullptr), so
this causes the following error:
```
In file included from capsicum-test.h:15,
from capsicum-test.cc:1:
gtest-1.10.0/include/gtest/gtest.h: In instantiation of 'testing::AssertionResult testing::internal::CmpHelperNE(const char*, const char*, const T1&, const T2&) [with T1 = long int; T2 = procstat*]':
capsicum-test.cc:75:3: required from here
gtest-1.10.0/include/gtest/gtest.h:1621:28: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
1609 | if (val1 op val2) {\
| ~~~~~~~~~~~~
......
1621 | GTEST_IMPL_CMP_HELPER_(NE, !=);
gtest-1.10.0/include/gtest/gtest.h:1609:12: note: in definition of macro 'GTEST_IMPL_CMP_HELPER_'
1609 | if (val1 op val2) {\
| ^~
```
Fix this by using nullptr directly.
Submitted upstream as https://github.com/google/capsicum-test/pull/56
Reported by: Jenkins CI
It seems like GCC's -Wsign-compare is stricter and also warns for
constants. Appease GCC by adding the required casts.
Fixes: 96a9e50e63 ("ptrace_test: Add more debug output on test failures")
Reported by: Jenkins CI
This is a nop in practice, because it cannot be proven that this
particular bzero() is not significant. Make it explicit anyways, rather
than relying on an implementation detail of how the password is
collected.
Discussed with: Andrew Gierth <andrew tao146 riddles org uk>
This should eventually replace the socket passed to the various
handlers. In the meantime, making it global avoids repeatedly opening
and closing handles.
Reported by: kp
Reviewed by: kp (earlier version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28990
Add sysctl link_active_on_if_down, which allows user to control
if interface is kept in active state when it is brought
down with ifconfig. Set it to enabled by default to preserve
backwards compatibility.
Reviewed by: erj
Tested by: gowtham.kumar.ks@intel.com
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D28028
HW keeps track of RX errors using several counters, each for
specific type of errors. Report RX errors to OS as sum
of all those counters: CRC errors, illegal bytes, checksum,
length, undersize, fragment, oversize and jabber errors.
There is no HW counter for frames with invalid L3/L4 checksums
so add a SW one.
Also add a "rx_errors" sysctl with a copy of netstat IERRORS
counter value to make it easier accessible from scripts.
Reviewed By: erj
Tested By: gowtham.kumar.ks@intel.com
Sponsored By: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D27639
There were two definitions for the SCSI VPD Block Device Characteristics (page
0xb1): struct scsi_vpd_block_characteristics and struct
scsi_vpd_block_device_characteristics. The latter is more complete and more
widely used. Convert uses of the former to the latter by tweaking the da driver
and removing sturct scsi_vpd_block_characteristics.
The old code had a O(n) loop, where n is the size of /dev/devstat.
Multiply that by another O(n) loop in devstat_mmap for a total of
O(n^2).
This change adds DIOCGMEDIASIZE support to /dev/devstat so userland can
quickly determine the right amount of memory to map, eliminating the
O(n) loop in userland.
This change decreases the time to run "gstat -bI0.001" with 16,384 md
devices from 29.7s to 4.2s.
Also, fix a memory leak first reported as PR 203097.
Sponsored by: Axcient
Reviewed by: mav, imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28968
HW keeps track of RX errors using several counters, each for
specific type of errors. Report RX errors to OS as sum
of all those counters: CRC errors, illegal bytes, checksum,
length, undersize, fragment, oversize and jabber errors.
Also, add new "rx_errs" sysctl in the dev.ix.N.mac_stats tree. This is
to provide an another way to display the sum of RX errors.
Signed-off-by: Piotr Pietruszewski <piotr.pietruszewski@intel.com>
Reviewed By: erj
Tested By: gowtham.kumar.ks@intel.com
Sponsored By: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D27191
For interfaces with admin completion queues, introduce a new devmethod
IFDI_ADMIN_COMPLETION_HANDLE and a corresponding flag IFLIB_HAS_ADMINCQ.
This provides an option for handling any admin cq logic, which cannot be
run from an interrupt context.
Said method is called from within iflib's admin task, making it safe to
sleep.
Reviewed by: mmacy
Submitted by: Artur Rojek <ar@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
Differential Revision: https://reviews.freebsd.org/D28708
The name or jid always gets added to the params, and that's enough to
avoid allocating a 0 length params array.
Reported by: kevans
Reviewed by: kevans
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D28778
According to Armada 8k documentation, the interrupt cause register
(at offset 0x14) is RW0C. Update the configuration in attach and
the mvebu_gpio_isrc_eoi() to follow the description.
Reviewed by: mmel
Obtained from: Semihalf
Sponsored by: Marvell
Differential Revision: https://reviews.freebsd.org/D29013
Respect filter-specific flags for the EVFILT_FS filter.
When a kevent is registered with the EVFILT_FS filter, it is always
triggered when an EVFILT_FS event occurs, regardless of the
filter-specific flags used. Fix that.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D28974
Set the filter-specific flags VQ_MOUNT and VQ_UNMOUNT for the
EVFILT_FS filter.
The filter-specific flags for the EVFILT_FS filter are undocumented, but
their usage can be found by looking up vfs_event_signal().
Reviewed by: trasz
Differential Revision: https://reviews.freebsd.org/D28975
This fixes mpr driver on big-endian devices.
Tested on powerpc64 and powerpc64le targets using a SAS9300-8i card
(LSISAS3008 pci vendor=0x1000 device=0x0097)
Submitted by: Andre Fernando da Silva <andre.silva@eldorado.org.br>
Reviewed by: luporl, alfredo, Sreekanth Reddy <sreekanth.reddy@broadcom.com> (by email)
Sponsored by: Eldorado Research Institute (eldorado.org.br)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25785
During a recent virtual NFSv4 testing event, a bug in the FreeBSD client
was detected when doing I/O DS operations on a Flexible File Layout pNFS
server. For an NFSv3 DS, the Read/Write/Commit nfsstats were incremented
instead of the ReadDS/WriteDS/CommitDS counts.
This patch fixes this.
Only the RPC counts reported by nfsstat(1) were affected by this bug,
the I/O operations were performed correctly.
MFC after: 2 weeks
fmtree(8) deprecation was announced on February 12, 2021, and no longer
built by default as of that date. The deprecation notice was merged
back to stable/12 and stable/13 + releng/13.0.
Continue with the plan by finishing the removal.
Relnotes: yes
