on interface. Such function could been implemented on top of
the if_foreach_llm?addr(), but several drivers need counting,
so avoid copy-n-paste inside the drivers.
addresses. The KPI doesn't reveal neither how addresses are stored,
how the access to them is synchronized, neither reveal struct ifaddr
and struct ifmaddr.
Reviewed by: gallatin, erj, hselasky, philip, stevek
Differential Revision: https://reviews.freebsd.org/D21943
Refactor nvdimm_spa_memattr() routine and callers to just save the value at
initialization and use the value directly. The reference value from NFIT,
MemoryMapping, is read only once, so the associated memattr could never
change.
No functional change.
Sponsored by: Dell EMC Isilon
Fix process launch failure on FreeBSD after r365761
Summary:
After rLLDB365761, and with `LLVM_ENABLE_ABI_BREAKING_CHECKS`
enabled, launching any process on FreeBSD crashes lldb with:
```
Expected<T> must be checked before access or destruction.
Expected<T> value was in success state. (Note: Expected<T> values in
success mode must still be checked prior to being destroyed).
```
This is because `m_operation_thread` and `m_monitor_thread` were
wrapped in `llvm::Expected<>`, but this requires the objects to be
correctly initialized before accessing them.
To fix the crashes, use `llvm::Optional<>` for the members (as
indicated by labath), and use local variables to store the return
values of `LaunchThread` and `StartMonitoringChildProcess`. Then,
only assign to the member variables after checking if the return
values indicated success.
Reviewers: devnexen, emaste, MaskRay, mgorny
Reviewed By: devnexen
Subscribers: jfb, labath, krytarowski, lldb-commits
Differential Revision: https://reviews.llvm.org/D68723
PR: 241137
MFC after: 1 month
X-MFC-With: r353358
Put in a band-aid fix for lldb 9 exiting with "Expected<T> must be
checked before access or destruction" when launching executables, while
we sort this out with upstream.
PR: 241137
MFC after: 1 month
X-MFC-With: r353358
opensolaris_atomic.S is now only used on i386 with opensolaris_atomic.c
used on other platforms. After r353381 it doesn't exist on those
platforms so the stale dependency would result in a build error.
membar_producer is supposed to be a store-store barrier.
Also, in the code that FreeBSD has ported from illumos membar_producer
is used only with regular stores to regular memory (with respect to
caching).
We do not have an MI primitive for the store-store barrier, so
atomic_thread_fence_rel is the closest we have as it provides
(load | store) -> store barrier.
Previously, membar_producer was an empty function call on all 32-bit
arm-s, 32-bit powerpc, riscv and all mips variants. I think that it was
inadequate.
On other platforms, such as amd64, arm64, i386, powerpc64, sparc64,
membar_producer was implemented using stronger primitives than required
for a store-store barrier with respect to regular memory access.
For example, it used sfence on amd64 and lock-ed nop in i386 (despite TSO).
On powerpc64 we now use recommended lwsync instead of eieio.
On sparc64 FreeBSD uses TSO mode.
On arm64/aarch64 we now use dmb sy instead of dmb ish. Not sure if this
is an improvement, actually.
After this change we can drop opensolaris_atomic.S for aarch64, amd64,
powerpc64 and sparc64 as all required atomic operations have either
direct or light-weight mapping to FreeBSD native atomic operations.
Discussed with: kib
MFC after: 4 weeks
starting at the max. domain, and then work down. Then existing FreeBSD
drivers will attach. Interrupt routing from the VMD MSI-X to the NVME
drive is not well known, so any interrupt is sent to all children that
register.
VROC used Intel meta data so graid(8) works with it. However, graid(8)
supports RAID 0,1,10 for read and write. I have some early code to
support writes with RAID 5. Note that RAID 5 can have life issues
with SSDs since it can cause write amplification from updating the parity
data.
Hot plug support needs a change to skip the following check to work:
if (pcib_request_feature(dev, PCI_FEATURE_HP) != 0) {
in sys/dev/pci/pci_pci.c.
Looked at by: imp, rpokala, bcr
Differential Revision: https://reviews.freebsd.org/D21383
* Don't partition a disk if too few are available. Just rely on Kyua to
ensure that the tests aren't run with insufficient disks.
* Remove redundant cleanup steps
* In zpool_add_003_pos, store the temporary file in $PWD so Kyua will
automatically clean it up.
* Update zpool_add_005_pos to use dumpon instead of dumpadm. This test had
never been ported to FreeBSD.
* In zpool_add_005_pos, don't format the dump disk with UFS. That was
pointless.
MFC after: 2 weeks
Sponsored by: Axcient
The cursor boundary tag is statically allocated in the vmem instead of
from the vmem_bt_zone. Explicitly remove it from the vmem's segment
list in vmem_destroy before freeing all the segments from the vmem.
Reviewed by: markj
MFC after: 1 week
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D21953
Simplify expressions as suggested by jhb. The extra indirection made
sense in earlier versions of this patch, but not the final one.
While here, apply suggestion from emaste for wording of universe.
Also wordsmith awkwardly worded comment about when we effectively
neuter the universe build for an architecture.
Once llvm 9.0 has been vetted for mips and powerpc, I'll take them out
of these lists.
This ensures the clip task won't race with t4_destroy_clip_table.
While here, make some mutex destroys unconditional since attach always
initializes them.
Reviewed by: np
MFC after: 1 week
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D21952
Cast the pointers to (uintptr_t) before assigning to type
uint64_t. This eliminates an error from gcc when we cast the pointer
to a larger integer type.
Only compile clang supporting architectures of amd64, arm, arm64,
i386, and riscv as part of universe. Compile the other architectures
if MAKE_OBSOLETE_GCC is defined. In all cases, explicit lists of
architectures in TARGETS= on the command line override.
For mips, powerpc and sparc64, do the same thing we do for risvc when
MAKE_OBSOLETE_GCC isn't defined and short-circuit their universe build
with an echo saying to install the xtoolchain port or pkg.
PR: 241134
Discussed on: arch@ (https://lists.freebsd.org/pipermail/freebsd-arch/2019-August/019674.html)
Differential Revision: https://reviews.freebsd.org/D21942
The test is necessarily racy, because it depends on being able to complete a
"zpool add" before a previous resilver finishes. But it was racier than it
needed to be. Move the first "zpool add" to before the resilver starts.
MFC after: 2 weeks
Sponsored by: Axcient
checked before access or destruction" when launching executables, while
we sort this out with upstream.
Reported by: jbeich
PR: 241137
MFC after: 1 month
X-MFC-With: r353358
The ZFS test suite was overriding the common $PWD variable with the path to
the pwd command, even though no test wanted to use it that way. Most tests
didn't notice, because ksh93 eventually restored it to its proper meaning.
MFC after: 2 weeks
Sponsored by: Axcient
* Don't create a UFS mountpoint just to store some temporary files. The
tests should always be executed with a sufficiently large TMPDIR.
Creating the UFS mountpoint is not only unneccessary, but it slowed
zpool_import_missing_002_pos greatly, because that test moves large files
between TMPDIR and the UFS mountpoint. This change also allows many of
the tests to be executed with just a single test disk, instead of two.
* Move zpool_import_missing_002_pos's backup device dir from / to $PWD to
prevent cross-device moves. On my system, these two changes improved that
test's speed by 39x. It should also prevent ENOSPC errors seen in CI.
* If insufficient disks are available, don't try to partition one of them.
Just rely on Kyua to skip the test. Users who care will configure Kyua
with sufficient disks.
MFC after: 2 weeks
Sponsored by: Axcient
Ensure the epoch_call() function is not called more than one time
before the callback has been executed, by always checking the
RS_FUNERAL_SCHD flag before invoking epoch_call().
The "rs_number_dead" is balanced again after r353353.
Discussed with: rrs@
Sponsored by: Mellanox Technologies
the epoch section towards return statement. Since entering epoch
is cheap, it is easier to cover the whole function with epoch,
rather than try to properly maintain its state.
If the bootloader enabled DMA we need to fully reset the DMA controller
otherwise we might have some stale data in it that provoke weird
behavior.
MFC after: 1 week
