There are three places where we return from a function which entered an
epoch section without exiting that epoch section. This is bad for two
reasons: the epoch section won't exit, and we will leave the epoch tracker
from the stack on the epoch list.
Fix the epoch leak by making sure we exit epoch sections before returning.
VinÃcius Zavam [Tue, 9 Oct 2018 07:22:14 +0000 (07:22 +0000)]
following "Setup, Conventions, and Traditions" (Committer's Guide);
5. share/misc/committers-ports.dot
* reflecting my privileges only for ports/, with mentors' entries;
* did test it with dot (graphics/graphviz) to check accent support.
9. usr.bin/calendar/calendars/calendar.freebsd
* added birth date + place.
'calendar.freebsd' offers UTF-8, so I added my entry using proper accents.
Rick Macklem [Tue, 9 Oct 2018 01:10:50 +0000 (01:10 +0000)]
Fix the pNFS server's reporting of disk space usage for the "#<path>" case.
The pNFS server would report the total disk space used and free for all
of the DSs, even when certain DSs are assigned to the file system via
the "#<path>" suffix used in the "nfsd -p" option argument.
This patch fixes this case. It only reports usage for the file system
that the argument vnode resides on. This is consistent with the non-pNFS
NFSv4 server. In NFSv4 it is possible to have subtrees on other file
systems, but these are not included in the usage information for NFSv4.
Add missing steering rules for virtual function, VF, in mlx4en(4) driver.
When acting as a VF it is required to add steering rules for all unicast
addresses. Even if promiscious mode is selected. Else incoming data packets
will be dropped.
MFC after: 3 days
Approved by: re (gjb)
Sponsored by: Mellanox Technologies
Michael Tuexen [Sun, 7 Oct 2018 15:54:13 +0000 (15:54 +0000)]
Address the warning regarding duplicate option 'GEOM_PART_GPT' when
configuring kernels for i386, amd64, and arm64.
The 'GEOM_PART_GPT' option was added to the DEFAULTS configuration
in r337967.
Approved by: re (kib@)
Reviewed by: ler@
Differential Revision: https://reviews.freebsd.org/D17458
Sponsored by: Netflix, Inc.
Kyle Evans [Sun, 7 Oct 2018 15:28:50 +0000 (15:28 +0000)]
lualoader: Honor boot_* variables at lua init
For non-UEFI systems, boot.config(5) may have -s or -v specified for
single-user and verbose boot respectively. These were not being properly
taken into account and reflected in the "Boot Options" submenu. When we
initialize core.lua, we'll record boot_single and boot_verbose as we do ACPI
and consider these the system defaults.
Reported by: David Wolfskill <david@catwhisker.org>
Approved by: re (kib)
Kyle Evans [Sun, 7 Oct 2018 01:53:43 +0000 (01:53 +0000)]
lualoader: Create a module blacklist, add DRM modules to it
This is a step in the process of easing migration into the new world order
of DRM drivers. Strongly encourage users towards loading DRM modules via
rc.conf(5) instead of loader.conf(5) by failing the load from loader(8).
Users so inclined may wipe out the blacklist via module_blacklist="" in
loader.conf(5), and it is expected that these modules will eventually be
removed from the blacklist. They may still be loaded as dependencies of
other modules or explicitly via the loader prompt, but this should not be a
major problem.
Approved by: re (rgrimes)
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D16914
Ed Maste [Sat, 6 Oct 2018 21:32:55 +0000 (21:32 +0000)]
sshd: address capsicum issues
* Add a wrapper to proxy login_getpwclass(3) as it is not allowed in
capability mode.
* Cache timezone data via caph_cache_tzdata() as we cannot access the
timezone file.
* Reverse resolve hostname before entering capability mode.
PR: 231172
Submitted by: naito.yuichiro@gmail.com
Reviewed by: cem, des
Approved by: re (rgrimes)
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D17128
Justin Hibbits [Sat, 6 Oct 2018 18:51:49 +0000 (18:51 +0000)]
powerpc/pseries: EOI interrupts in XICS by setting lowest priority
Discussing with Benjamin Herrenschmidt, OPAL_INT_GET_XIRR masks the
returned priority, so must be resumed before more interrupts can be
handled at this priority. Since there are only two priorities used in
FreeBSD, we know that the previous priority in an EOI will always be
0xff (lowest priority).
Ed Maste [Sat, 6 Oct 2018 14:38:34 +0000 (14:38 +0000)]
openssh: cherry-pick OpenSSL 1.1.1 compatibility
Compatibility with existing OpenSSL versions is maintained.
Upstream commits: 482d23bcac upstream: hold our collective noses and use the openssl-1.1.x 48f54b9d12 adapt -portable to OpenSSL 1.1x API 86e0a9f3d2 upstream: use only openssl-1.1.x API here too a3fd8074e2 upstream: missed a bit of openssl-1.0.x API in this unittest cce8cbe0ed Fix openssl-1.1 fallout for --without-openssl.
Trivial conflicts in sshkey.c and test_sshkey.c were resolved.
Connect libressl-api-compat.c to the build, and regenerate config.h
Reviewed by: des
Approved by: re (rgrimes)
MFC after: 2 seeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D17444
Justin Hibbits [Sat, 6 Oct 2018 03:20:26 +0000 (03:20 +0000)]
powerpc64/powernv: Don't mask MSIs in OPAL
Summary:
Discussing with Benjamin Herrenschmidt, MSIs, and edge-triggered
interrupts in general, must not be masked in XICS and XIVE, else
subsequent interrupts may be ignored.
Testing locally on my Talos II (single CPU, 18-core POWER9), NVMe now
works with MSI, improving read throughput by ~70% (900MB/s -> 1.67GB/s,
with 64MB block size) over INTx interrupts, and snd_hda(4) now will
actually play music with MSI. Previously, snd_hda(4) would not receive
interrupts, timing out, and declaring the channels dead.
This has also been tested by Kevin Bowling, and others, with great
success. Kevin reported NVMe unusable on his Talos II prior to this
patch.
Jamie Gritton [Sat, 6 Oct 2018 02:10:32 +0000 (02:10 +0000)]
Fix the test prohibiting jails from sharing IP addresses.
It's not supposed to be legal for two jails to contain the same IP address,
unless both jails contain only that one address. This is the behavior
documented in jail(8), and is there to prevent confusion when multiple
jails are listening on IADDR_ANY.
VIMAGE jails (now the default for GENERIC kernels) test this correctly,
but non-VIMAGE jails have been performing an incomplete test when nested
jails are used.
Stephen Hurd [Fri, 5 Oct 2018 20:16:20 +0000 (20:16 +0000)]
Fix igb corrupting checksums with BPF and VLAN
When using a vlan with igb and the vlanhwcsum option, any mbufs which
already had the TCP, UDP, or SCTP checksum calculated and therefore don't
have the CSUM_[IP|IP6]_[TCP|UDP|SCTP] bits set in the csum_flags field would
have the L4 checksum corrupted by the hardware.
This was caused by the driver setting E1000_TXD_POPTS_TXSM any time a
checksum bit was set OR a vlan tag was present.
The patched driver only sets E1000_TXD_POPTS_TXSM when an offload is
requested.
PR: 231416
Reported by: pi
Approved by: re (gjb)
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D17404
Mateusz Guzik [Fri, 5 Oct 2018 19:25:09 +0000 (19:25 +0000)]
amd64: make memset less slow with mov
rep stos has a high startup time even on modern microarchitectures like
Skylake. Intel optimization manuals discuss how for small sizes it is
beneficial to go for streaming stores. Since those cannot be used without
extra penalty in the kernel I investigated performance impact of just
regular movs.
The patch below implements a very simple scheme: a 32-byte loop followed
by filling in the remainder of at most 31 bytes. It has a 256 breaking
point on which it falls back to rep stos. It provides a significant win
over the current primitive on several machines I tested (both Intel and
AMD). A 64-byte loop did not provide any benefit even for multiple of 64
sizes.
See the review for benchmark data.
Reviewed by: kib
Approved by: re (gjb)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D17398
Kyle Evans [Fri, 5 Oct 2018 17:07:10 +0000 (17:07 +0000)]
lualoader: Don't draw loader menu with autoboot_delay=-1
This was mostly a cosmetic issue. autoboot_delay=-1 is documented to bypass
the loader menu and immediately execute the boot command, but lualoader
would draw the menu and immediately execute the boot command. No interaction
was possible with the menu.
The fix lifts autoboot_delay processing out of menu.autoboot, which now
takes a delay and does nothing if no delay is specified. This lines up with
my expectations of menu.autoboot's usage from a third party, which may
want more control over the process than the default behavior.
Reported by: Jose Luis Duran
Reviewed by: bcr
Approved by: re (gjb), krion (mentor, implicit), mat (mentor, implicit)
Differential Revision: https://reviews.freebsd.org/D17409
Matt Macy [Fri, 5 Oct 2018 05:55:56 +0000 (05:55 +0000)]
hwpmc: Refactor sample ring buffer handling to fix races
Refactor sample ring buffer ring handling to make it more robust to
long running callchain collection handling
r338112 introduced a (now fixed) regression that exposed a number of race
conditions within the management of the sample buffers. This
simplifies the handling and moves the decision to overwrite a
callchain sample that has taken too long out of the NMI in to the
hardlock handler. With this change the problem no longer shows up as a
ring corruption but as the code spending all of its time in callchain
collection.
- Makes the producer / consumer index incrementing monotonic, making it
easier (for me at least) to reason about.
- Moves the decision to overwrite a sample from NMI context to interrupt
context where we can enforce serialization.
- Puts a time limit on waiting to collect a user callchain - putting a
bound on head-of-line blocking causing samples to be dropped
- Removes the flush routine which was previously needed to purge
dangling references to the pmc from the sample buffers but now is only
a source of a race condition on unload.
Previously one could lock up or crash HEAD by running:
pmcstat -S inst_retired.any_p -T and then hitting ^C
Matt Macy [Fri, 5 Oct 2018 05:50:56 +0000 (05:50 +0000)]
eliminate locking surrounding ui_vmsize and swap reserve by using atomics
Change swap_reserve and swap_total to be in units of pages so that
swap reservations can be done using only atomics instead of using a single
global mutex for swap_reserve and a single mutex for all processes running
under the same uid for uid accounting.
Results in mmap speed up and a 70% increase in brk calls / second.
Ryan Stone [Thu, 4 Oct 2018 22:03:58 +0000 (22:03 +0000)]
Hold a write lock across udp_notify()
With the new route cache feature udp_notify() will modify the inp when it
needs to invalidate the route cache. Ensure that we hold a write lock on
the inp before calling the function to ensure that multiple threads don't
race while trying to invalidate the cache (which previously lead to a page
fault).
Brooks Davis [Thu, 4 Oct 2018 21:55:58 +0000 (21:55 +0000)]
Reduce NL_ARGMAX to 4096 to match Linux.
NL_ARGMAX is the maximum number of positional arguments supported by
printf(3). Prior to r308145 it was declared as 99 and not enforced.
r308145 added enforcement and increased the value to 64k.
Unfortunately, development versions of PostgreSQL used the system
definition to allocate and zero an NL_ARGMAX * 4 sized array on the
stack of its snprintf implementation with measurable performance
impacts. This has been fixed in new PostgreSQL versions, but it is
possible that other programs suffer from this problem.
A value of 4096 puts us on par with Linux and is certainly large enough
for any reasonable program.
- Extend the bsdinstall(8) man page with ZFS installation scripting
details. [1]
- Extend the bsdinstall(8) man page with the description of all the ZFS
variables involved in a scripted installation of ZFS-based systems. [1]
- Extend the SCRIPTING section with an example for a ZFS-based scripted
installation. [1]
- Create a new section explaining how ZFS datasets must be written into
a variable to get them set on the final system. [1]
While here:
- Add Roberto to the copyrights for recognition as changes to the manual
page are huge.
- Use "Dq" for default values.
- Use sysrc(8) instead of echo in examples.
When the adist_free list is empty and we lose connection to the receiver we
move all elements from the adist_send and adist_recv lists back onto the
adist_free list, but we don't wake consumers waitings for the adist_free list
to become non-empty. This can lead to the sender process stopping audit trail
files distribution and waiting forever.
Fix the problem by adding the missing wakeup.
While here slow down spinning on CPU in case of a short race in
sender_disconnect() and add an explaination when it can occur.
PR: 201953
Reported by: peter
Approved by: re (kib)
When we look for a new trail file there might be a race between find trail
file name and opening it. This race was not properly handled, because we were
copying new name before checking for openat(2) error and when we were trying
again we were starting with the next trail file. This could result in skipping
distribution of such a trail file.
Fix this problem by checking for ENOENT first (only for .not_terminated files)
and then updating (or not) tr_filename before restarting the search.
PR: 200139
Reported by: peter
Approved by: re (kib)
Glen Barber [Thu, 4 Oct 2018 01:46:56 +0000 (01:46 +0000)]
Fix the hardware.{txt,html} build in the release/Makefile 'reldoc'
target.
The doc/share/mk/doc.commands.mk sets SVN to /usr/local/bin/svn
by default, which is not necessarily installed by the documentation
project textproc/docproj port.
Ensure SVN can be evaluated properly to include the hardware pages
by iterating through /usr/local/bin and /usr/bin and looking for
both svn and svnlite binaries, and pass the SVN variable explicitly
through env(1) in the reldoc target to avoid failures if it does not
exist.
Approved by: re (rgrimes)
Sponsored by: The FreeBSD Foundation
Brooks Davis [Wed, 3 Oct 2018 20:39:48 +0000 (20:39 +0000)]
Move 32-bit compat support for FIODGNAME to the right place.
ioctl(2) commands only have meaning in the context of a file descriptor
so translating them in the syscall layer is incorrect.
The new handler users an accessor to retrieve/construct a pointer from
the last member of the passed structure and relies on type punning to
access the other member which requires no translation.
Gleb Smirnoff [Wed, 3 Oct 2018 17:40:04 +0000 (17:40 +0000)]
In PR 227259, a user is reporting that they have code which is using
shutdown() to wakeup another thread blocked on a stream listen socket.
This code is failing, while it used to work on FreeBSD 10 and still
works on Linux.
It seems reasonable to add another exception to support something users are
actually doing, which used to work on FreeBSD 10, and still works on Linux.
And, it seems like it should be acceptable to POSIX, as we still return
ENOTCONN.
This patch is different to what had been committed to stable/11, since
code around listening sockets is different. Patch in D15019 is written
by jtl@, slightly modified by me.
Ed Maste [Wed, 3 Oct 2018 16:11:13 +0000 (16:11 +0000)]
openssh: cherry-pick OpenSSL 1.1.1 compatibility
Upstream commits: 482d23bcac upstream: hold our collective noses and use the openssl-1.1.x 48f54b9d12 adapt -portable to OpenSSL 1.1x API 86e0a9f3d2 upstream: use only openssl-1.1.x API here too a3fd8074e2 upstream: missed a bit of openssl-1.0.x API in this unittest cce8cbe0ed Fix openssl-1.1 fallout for --without-openssl.
Trivial conflicts in sshkey.c and test_sshkey.c were resolved.
Brooks Davis [Tue, 2 Oct 2018 23:23:56 +0000 (23:23 +0000)]
Move 32-bit compat support for CDIOREADTOCENTRYS to the right place.
ioctl(2) commands only have meaning in the context of a file descriptor
so translating them in the syscall layer is incorrect.
The new handler users an accessor to retrieve/construct a pointer from
the last member of the passed structure and relies on type punning to
access the other members which require no translation.
Bjoern A. Zeeb [Tue, 2 Oct 2018 17:29:56 +0000 (17:29 +0000)]
After r338257 is was possible to trigger a KASSERT() in ud6_output()
using an application trying to use a v4mapped destination address on a
kernel without INET support or on a v6only socket.
Catch this case and prevent the packet from going anywhere;
else, without the KASSERT() armed, a v4mapped destination
address might go out on the wire or other undefined behaviour
might happen, while with the KASSERT() we panic.
PR: 231728
Reported by: Jeremy Faulkner (gldisater gmail.com)
Approved by: re (kib)
Robert Watson [Tue, 2 Oct 2018 15:58:17 +0000 (15:58 +0000)]
Rework the logic around quick checks for auditing that take place at
system-call entry and whenever audit arguments or return values are
captured:
1. Expose a single global, audit_syscalls_enabled, which controls
whether the audit framework is entered, rather than exposing
components of the policy -- e.g., if the trail is enabled,
suspended, etc.
2. Introduce a new function audit_syscalls_enabled_update(), which is
called to update audit_syscalls_enabled whenever an aspect of the
policy changes, so that the value can be updated.
3. Remove a check of trail enablement/suspension from audit_new() --
at the point where this function has been entered, we believe that
system-call auditing is already in force, or we wouldn't get here,
so simply proceed to more expensive policy checks.
4. Use an audit-provided global, audit_dtrace_enabled, rather than a
dtaudit-provided global, to provide policy indicating whether
dtaudit would like system calls to be audited.
5. Do some minor cosmetic renaming to clarify what various variables
are for.
These changes collectively arrange it so that traditional audit
(trail, pipes) or the DTrace audit provider can enable system-call
probes without the other configured. Otherwise, dtaudit cannot
capture system-call data without auditd(8) started.
Ed Maste [Tue, 2 Oct 2018 15:08:41 +0000 (15:08 +0000)]
libelf: correct mips64el test to use ELF header
libelf maintains two views of endianness: e_byteorder, and
e_ident[EI_DATA] in the ELF header itself. e_byteorder is not always
kept in sync, so use the ELF header endianness to test for mips64el.
PR: 231790
Bisected by: sbruno
Reviewed by: jhb
Approved by: re (kib)
MFC with: r338478
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D17380
Due to markup issues, the DESCRIPTION OF MEMORY section is rather
unreadable; rework it a bit, using subsections for different lines of the
top output, and move it closer to description.
While here, pet manlint ordering other sections as expected.
Andreas Tobler [Mon, 1 Oct 2018 18:46:35 +0000 (18:46 +0000)]
This commit reverts 338930. The approach was wrong.
Fix the issue with subtracting the TLS_TCB_SIZE too when we are trying to get
the 'where' in the R_PPC_TPREL32 case. At allocation time we added an offset
and the TLS_TCB_SIZE. This has to be subtracted as well.
Now all the issues reported are fixed. Tests were done on G4 and G5 PowerMac's.
Additionally I ran the tls tests from the gcc test suite and made sure the
results are as good as pre 338486.
Thanks to tuexen for reporting the malfunction and for patient testing.
Also testing thanks goes to jhibbits.
Reported by: tuexen
Discussed with: jhibbits, nwhitehorn
Approved by: re (gjb)
Pointyhat to: andreast
Andrew Gallatin [Mon, 1 Oct 2018 14:14:21 +0000 (14:14 +0000)]
Allow empty NUMA memory domains to support Threadripper2
The AMD Threadripper 2990WX is basically a slightly crippled Epyc.
Rather than having 4 memory controllers, one per NUMA domain, it has
only 2 memory controllers enabled. This means that only 2 of the
4 NUMA domains can be populated with physical memory, and the
others are empty.
Add support to FreeBSD for empty NUMA domains by:
- creating empty memory domains when parsing the SRAT table,
rather than failing to parse the table
- not running the pageout deamon threads in empty domains
- adding defensive code to UMA to avoid allocating from empty domains
- adding defensive code to cpuset to avoid binding to an empty domain
Thanks to Jeff for suggesting this strategy.
Michael Tuexen [Mon, 1 Oct 2018 14:05:31 +0000 (14:05 +0000)]
Mitigate providing a timing signal if the COOKIE or AUTH
validation fails.
Thanks to jmg@ for reporting the issue, which was discussed in
https://admbugs.freebsd.org/show_bug.cgi?id=878
Andrew Turner [Mon, 1 Oct 2018 14:02:29 +0000 (14:02 +0000)]
Add STT_GNU_IFUNC and R_AARCH64_IRELATIVE support on arm64.
This is based on the amd64 implementation. Support for both PLT and
non-PLT (e.g. a global variable initilised with a pointer to an ifunc)
cases are supported.
We don't pass anything to the resolver as it is expected they will read
the ID registers directly, with the number of registers with CPU info
likely to increase in the future.
Reviewed by: kib
Approved by: re (gjb)
Differential Revision: https://reviews.freebsd.org/D17341
Michael Tuexen [Mon, 1 Oct 2018 13:09:18 +0000 (13:09 +0000)]
After allocating chunks set the fields in a consistent way.
This removes two assignments for the flags field being done
twice and adds one, which was missing.
Thanks to Felix Weinrank for reporting the issue he found
by using fuzz testing of the userland stack.
Add INP_INFO_WUNLOCK_ASSERT() macro and use it instead of
INP_INFO_UNLOCK_ASSERT() in TCP-related code. For encapsulated traffic
it is possible, that the code is running in net_epoch_preempt section,
and INP_INFO_UNLOCK_ASSERT() is very strict assertion for such case.
Bjoern A. Zeeb [Mon, 1 Oct 2018 10:44:33 +0000 (10:44 +0000)]
Fix the MODULE_PNP_INFO() for iwm(4) where I got the bus and module
arguments wrong in r339020.
PR: 231625
Reported by: Yuri Pankov (yuripv yuripv.net)
Reviewed by: cem, Yuri Pankov (yuripv yuripv.net)
Approved by: re (kib)
Pointyhat to: bz (a rather big one for this one)
Michael Tuexen [Sun, 30 Sep 2018 16:21:31 +0000 (16:21 +0000)]
Fix the handling of ancillary data for SCTP socket. Implement
sctp_process_cmsgs_for_init() and sctp_findassociation_cmsgs()
similar to sctp_find_cmsg() to improve consistency and avoid
the signed/unsigned issues in sctp_process_cmsgs_for_init()
and sctp_findassociation_cmsgs().
Thanks to andrew@ for reporting the problem he found using
syzcaller.
Michael Tuexen [Sun, 30 Sep 2018 12:16:06 +0000 (12:16 +0000)]
Increment the corresponding UDP stats counter (udps_opackets) when
sending UDP encapsulated SCTP packets.
This is consistent with the behaviour that when such packets are received,
the corresponding UDP stats counter (udps_ipackets) is incremented.
Thanks to Peter Lei for making me aware of this inconsistency.
Ed Maste [Sat, 29 Sep 2018 20:01:23 +0000 (20:01 +0000)]
clang: allow ifunc resolvers to accept arguments
Previously Clang required ifunc resolution functions to take no
arguments, presumably because GCC documented ifunc resolvers as taking
no arguments. However, GCC accepts resolvers accepting arguments, and
our rtld passes CPU ID information (cpuid, hwcap, etc.) to ifunc
resolvers. Just remove the check from the in-tree compiler for our in-
tree compiler; a different (per-OS) approach may be required upstream.
Reported by: mjg
Approved by: re (rgrimes)
MFC after: 1 week
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
This fixes a regression in lld that made it stop emitting STT_FILE
symbols, which ctfmerge relies upon to uniquify function table entries
that reference STB_LOCAL symbols. Consequently, ctfmerge stopped
emitting entries for static functions into the function table, and
dtrace no longer gets type info for them.
Approved by: re (kib)
Reported by: markj
PR: 230444
MFC after: 3 days
Michael Tuexen [Sat, 29 Sep 2018 13:01:23 +0000 (13:01 +0000)]
For changing the MTU on tun/tap devices, it should not matter whether it
is done via using ifconfig, which uses a SIOCSIFMTU ioctl() command, or
doing it using a TUNSIFINFO/TAPSIFINFO ioctl() command.
Without this patch, for IPv6 the new MTU is not used when creating routes.
Especially, when initiating TCP connections after increasing the MTU,
the old MTU is still used to compute the MSS.
Thanks to ae@ and bz@ for helping to improve the patch.
Reviewed by: ae@, bz@
Approved by: re (kib@)
MFC after: 1 week
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D17180
This fixes an assert in vdev_queue_change_io_priority():
VERIFY3(zio->io_priority < ZIO_PRIORITY_NUM_QUEUEABLE) failed (7 < 6)
PANIC at vdev_queue.c:832:vdev_queue_change_io_priority()
Reviewed-by: Tom Caputi <tcaputi@datto.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov>
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