-o will force the origin to be destroyed unconditionally.
BE_DESTROY_AUTOORIGIN, on the other hand, will only destroy the origin if it
matches the format used by be_snapshot. This lets us clean up the snapshots
that are clearly not user-managed (because we're creating them) while
leaving user-created snapshots in place and warning that they're still
around when the BE created goes away.
This allows to remove a bunch of low level code.
Also, superio(4) provides safer interaction with other drivers
that work with Super I/O configuration registers.
Tested only on PCengines APU2:
superio0: <Nuvoton NCT5104D/NCT6102D/NCT6106D (rev. B+)> at port 0x2e-0x2f on isa0
wbwd0: <Nuvoton NCT6102 (0xc4/0x53) Watchdog Timer> at WDT ldn 0x08 on superio0
The watchdog output is incorrectly wired on that system and the watchdog
does not really do it its job, but the pulse can be seen with a signal
analyzer.
Reviewed by: delphij, bcr (man page)
MFC after: 19 days
Differential Revision: https://reviews.freebsd.org/D21979
New BEs can be created from either an existing snapshot or an existing BE.
If an existing BE is chosen (either implicitly via 'bectl create' or
explicitly via 'bectl create -e foo bar', for instance), then bectl will
create a snapshot of the current BE or "foo" with be_snapshot, with a name
formatted like: strftime("%F-%T") and a serial added to it.
This commit adds the needed bits for libbe or consumers to determine if a
snapshot names matches one of these auto-created snapshots (with some light
validation of the date/time/serial), and also a be_destroy flag to specify
that the origin should be automatically destroyed if possible.
A future commit to bectl will specify BE_DESTROY_AUTOORIGIN by default so we
clean up the origin in the most common case, non-user-managed snapshots.
This is where it logically belongs.
The change allows to drop a bunch of low lewel code.
Reviewed by: gonzo
MFC after: 19 days
Differential Revision: https://reviews.freebsd.org/D21980
Arm updates these with each new architecture revision. To help keep them
updated use a collection of tables to hold the needed information to
decode these registers.
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D22020
The timespec struct holds a seconds value in a time_t and a nanoseconds
value in a long. On most architectures these are the same size, however
on 32-bit architectures other than i386 time_t is 8 bytes and long is
4 bytes.
Most ABIs will then pad a struct holding an 8 byte and 4 byte value to
16 bytes with 4 bytes of padding. When copying one of these structs the
compiler is free to copy the padding if it wishes.
In this case the padding may contain kernel data that is then leaked to
userspace. Fix this by copying the timespec elements rather than the
entire struct.
This doesn't affect Tier-1 architectures so no SA is expected.
admbugs: 651
MFC after: 1 week
Sponsored by: DARPA, AFRL
illumos/illumos-gate@c4ab0d3f46c4ab0d3f46https://www.illumos.org/issues/10809
Port ZoL ee36c709c3 Performance optimization of AVL tree comparator functions
This is a followup to r337567 that imported the ZoL commit directly into
FreeBSD. It seems that at the time we did not have some of the earlier
changes, so some pieces of the ZoL change were not applicable. Also,
the illumos version got a few style cleanups. Some changes were missed
or incorrectly merged (e.g., vdev_cache_lastused_compare and
metaslab_rangesize_compare).
Obtained from: ZoL, illumos
MFC after: 25 days
X-MFC after: r353634
partial fragmented packets before a network interface is detached.
When sending IPv4 or IPv6 fragmented packets and a fragment is lost
before the network device is freed, the mbuf making up the fragment
will remain in the temporary hashed fragment list and cause a panic
when it times out due to accessing a freed network interface
structure.
1) Make sure the m_pkthdr.rcvif always points to a valid network
interface. Else the rcvif field should be set to NULL.
2) Use the rcvif of the last received fragment as m_pkthdr.rcvif for
the fully defragged packet, instead of the first received fragment.
Panic backtrace for IPv6:
panic()
icmp6_reflect() # tries to access rcvif->if_afdata[AF_INET6]->xxx
icmp6_error()
frag6_freef()
frag6_slowtimo()
pfslowtimo()
softclock_call_cc()
softclock()
ithread_loop()
Reviewed by: bz
Differential Revision: https://reviews.freebsd.org/D19622
MFC after: 1 week
Sponsored by: Mellanox Technologies
illumos/illumos-gate@7931524763
FreeBSD note: some tweaking was needed to avoid a conflict with
sys/rangelock.h.
Author: Matthew Ahrens <mahrens@delphix.com>
Obtained from: illumos
MFC after: 3 weeks
This reduces the number of references to VLAN_TRUNKDEV() in ibcore.
Currently only VLAN is supported as a child interface in FreeBSD.
Remove superfluous RCU locking.
Sponsored by: Mellanox Technologies
illumos/illumos-gate@c4ab0d3f46c4ab0d3f46https://www.illumos.org/issues/10809
Port ZoL ee36c709c3 Performance optimization of AVL tree comparator functions
From the ZoL commit msg:
perf: 2.75x faster ddt_entry_compare()
First 256bits of ddt_key_t is a block checksum, which are expected
to be close to random data. Hence, on average, comparison only needs to
look at first few bytes of the keys. To reduce number of conditional
jump instructions, the result is computed as: sign(memcmp(k1, k2)).
Sign of an integer 'a' can be obtained as: `(0 < a) - (a < 0)` := {-1, 0, 1},
which is computed efficiently. Synthetic performance evaluation
of original and new algorithm over 1G random keys on 2.6GHz
Intel(R) Xeon(R) CPU E5-2660 v3:
old 6.85789 s
new 2.49089 s
perf: 2.8x faster vdev_queue_offset_compare() and vdev_queue_timestamp_compare()
Compute the result directly instead of using conditionals
perf: zfs_range_compare()
Speedup between 1.1x - 2.5x, depending on compiler version and
optimization level.
perf: spa_error_entry_compare()
`bcmp()` is not suitable for comparator use. Use `memcmp()` instead.
perf: 2.8x faster metaslab_compare() and metaslab_rangesize_compare()
perf: 2.8x faster zil_bp_compare()
Portions contributed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Author: Gvozden Neskovic <neskovic@gmail.com>
illumos/illumos-gate@0ce4bbcb470ce4bbcb47https://www.illumos.org/issues/10841
ZoL 944a37248a predictive prefetch disabled on new pools until export/reboot
When a pool is initially created (by `zpool create`), predictive
prefetch is inadvertently disabled, until the pool is
export/import-ed, or the machine is rebooted.
When device removal was introduced, we added some code to disable
predictive prefetching until indirect vdevs have been loaded. This
resulted in the "default state" of prefetch being disabled, until we
proactively enable it after indirect vdevs are loaded. Unfortunately
this resulted in a few bugs where in some code paths we neglect to
enable predictive prefetch. The first of these was fixed by
20507534d4
This commit fixes another case where we also need to explicitly enable
predictive prefetch, when the pool is initially created.
Author: Matthew Ahrens <mahrens@delphix.com>
Not sure if we need anything better.
Maybe we should try to port illumos libfakekernel or provide something
similar natively.
MFC after: 4 weeks
X-MFC with: r353618
The VM_PAGE_OBJECT_BUSY_ASSERT() in pmap_enter() implementation should
be only asserted when the code is executed as result of pmap_enter(),
not when the same code is entered from e.g. pmap_enter_quick(). This
is relevant for all PowerPC pmap variants, because mmu_*_enter() is
used as the backend, and assert is located there.
Add a PowerPC private pmap_enter() PMAP_ENTER_QUICK_LOCKED flag to
indicate that the call is not from pmap_enter(). For non-quick-locked
calls, assert that the object is locked.
Reported and tested by: bdragon
Reviewed by: alc, bdragon, markj
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D22041
illumos/illumos-gate@52abb70e0752abb70e07https://www.illumos.org/issues/9691
When iterating over a ZAP object, we're almost always certain to
iterate over the entire object. If there are multiple leaf blocks, we
can realize a performance win by issuing reads for all the leaf blocks
in parallel when the iteration begins.
For example, if we have 10,000 snapshots, "zfs destroy -nv
pool/fs@1%9999" can take 30 minutes when the cache is cold. This
change provides a >3x performance improvement, by issuing the reads
for all ~64 blocks of each ZAP object in parallel.
Author: Matthew Ahrens <mahrens@delphix.com>
Obtained from: illumos
MFC after: 2 weeks
illumos/illumos-gate@52abb70e0752abb70e07https://www.illumos.org/issues/9691
When iterating over a ZAP object, we're almost always certain to
iterate over the entire object. If there are multiple leaf blocks, we
can realize a performance win by issuing reads for all the leaf blocks
in parallel when the iteration begins.
For example, if we have 10,000 snapshots, "zfs destroy -nv
pool/fs@1%9999" can take 30 minutes when the cache is cold. This
change provides a >3x performance improvement, by issuing the reads
for all ~64 blocks of each ZAP object in parallel.
Author: Matthew Ahrens <mahrens@delphix.com>
illumos/illumos-gate@d0cb1fb926d0cb1fb926https://www.illumos.org/issues/9425
Problem Statement
ZFS Channel program scripts currently require a timeout, so that hung
or long-running scripts return a timeout error instead of causing ZFS
to get wedged. This limit can currently be set up to 100 million Lua
instructions. Even with a limit in place, it would be desirable to
have a sys admin (support engineer) be able to cancel a script that is
taking a long time.
Proposed Solution
Make it possible to abort a channel program by sending an interrupt
signal.In the underlying txg_wait_sync function, switch the cv_wait to
a cv_wait_sig to catch the signal. Once a signal is encountered, the
dsl_sync_task function can install a Lua hook that will get called
before the Lua interpreter executes a new line of code. The
dsl_sync_task can resume with a standard txg_wait_sync call and wait
for the txg to complete. Meanwhile, the hook will abort the script and
indicate that the channel program was canceled. The kernel returns a
EINTR to indicate that the channel program run was canceled.
FreeBSD note: the return value of cv_wait_sig() has inverted meaning
between us and illumos.
Author: Don Brady <don.brady@delphix.com>
Obtained from: illumos
MFC after: 4 weeks
illumos/illumos-gate@d0cb1fb926d0cb1fb926https://www.illumos.org/issues/9425
Problem Statement
ZFS Channel program scripts currently require a timeout, so that hung
or long- running scripts return a timeout error instead of causing ZFS
to get wedged. This limit can currently be set up to 100 million Lua
instructions. Even with a limit in place, it would be desirable to
have a sys admin (support engineer) be able to cancel a script that is
taking a long time.
Proposed Solution
Make it possible to abort a channel program by sending an interrupt
signal.In the underlying txg_wait_sync function, switch the cv_wait to
a cv_wait_sig to catch the signal. Once a signal is encountered, the
dsl_sync_task function can install a Lua hook that will get called
before the Lua interpreter executes a new line of code. The
dsl_sync_task can resume with a standard txg_wait_sync call and wait
for the txg to complete. Meanwhile, the hook will abort the script and
indicate that the channel program was canceled. The kernel returns a
EINTR to indicate that the channel program run was canceled.
Author: Don Brady <don.brady@delphix.com>
illumos/illumos-gate@a0b03b161ca0b03b161chttps://www.illumos.org/issues/10330
3 recent ZoL changes in the vdev and metaslab code which we can pull over:
PR 8324 c853f382db 8324 Change target size of metaslabs from 256GB to 16GB
PR 8290 b194fab0fb 8290 Factor metaslab_load_wait() in metaslab_load()
PR 8286 419ba59145 8286 Update vdev_is_spacemap_addressable() for new spacemap
encoding
Author: Serapheim Dimitropoulos <serapheimd@gmail.com>
Obtained from: illumos, ZoL
MFC after: 2 weeks
illumos/illumos-gate@a0b03b161ca0b03b161chttps://www.illumos.org/issues/10330
3 recent ZoL changes in the vdev and metaslab code which we can pull over:
PR 8324 c853f382db 8324 Change target size of metaslabs from 256GB to 16GB
PR 8290 b194fab0fb 8290 Factor metaslab_load_wait() in metaslab_load()
PR 8286 419ba59145 8286 Update vdev_is_spacemap_addressable() for new spacemap
encoding
Author: Serapheim Dimitropoulos <serapheimd@gmail.com>
illumos/illumos-gate@b0ef425652b0ef425652https://www.illumos.org/issues/10230
The trinity fuzzer calls pwritev with an iovec that has one or more entries
which point to some initial valid data and then the rest point to addresses
which are not mapped. This yields EFAULT once the write hits the invalid
address, but we do successfully complete some amount of writing. The zfs_write
code does not handle this properly. It loses track of the error return from
dmu_write_uio_dbuf and it has an invalid ASSERT which does not account for the
partial write case.
Author: Jerry Jelinek <jerry.jelinek@joyent.com>
Summary:
The AmigaOne platform, encompassing the X5000 and A1222 at this time, is
based on the mpc85xx platform, but includes some things not listed in
the device tree. Some custom devices, like CPLD, could be added to the
device tree with an overlay, or other means. However, some cannot
easily be done, such as the power button interrupt.
The directory will also become a location to add AmigaOne platform drivers,
such as the aforementioned CPLD, and its children.
Reviewed by: bdragon
Differential Revision: https://reviews.freebsd.org/D21829
The comments in devmap are very ARM specific, this generalizes them for other
architectures.
Submitted by: Nicholas O'Brien <nickisobrien_gmail.com>
Reviewed by: manu, philip
Sponsored by: Axiado
Differential Revision: https://reviews.freebsd.org/D22035
From Zach:
Intel documentation indicates that backplane X550EM_X KR devices do not
support Energy Efficient Ethernet. Prior to this patch, X552 devices
(device ID 0x15AB) will crash the system when transitioning EEE state
via sysctl.
Signed-off-by: Zach Vargas <zvargas@xes-inc.com>
PR: 240320
Submitted by: Zach Vargas <zvargas@xes-inc.com>
Reviewed by: erj@
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D21673
