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Requested by: Simon Gerraty <sjg@juniper.net>
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Creation of a new filesystem does not imply an intent to mount it.
Since canmount property is not inherited and its default value is 'on',
the only scenario where this matters is zfs clone -o canmount=noauto.
zfs create -o canmount=noauto already does not mount the new filesystem.
Also see:
https://www.illumos.org/issues/5984
https://reviews.csiden.org/r/228/
https://github.com/FransUrbo/zfs/commit/dd0e0e69f5b1c83bf2895ac00a0b83af77473175
https://github.com/zfsonlinux/zfs/issues/2241
Reviewed by: mahrens
MFC after: 8 days
Sponsored by: ClusterHQ
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../common/libzfs_import.c, line 1077, function zpool_open_func
illumos/illumos-gate@bd0f709169e67f4bd34526e186a7c34f595f0d9b
Author: Andrew Stormont <andyjstormont@gmail.com>
MFC after: 13 days
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illumos/illumos-gate@81cd5c555f505484180a62ca5a2fbb00d70c57d6
Author: Matthew Ahrens <mahrens@delphix.com>
MFC after: 17 days
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0. For spin events report time spent spinning, not a loop count.
While loop count is much easier and cheaper to obtain it is hard
to reason about the reported numbers, espcially for adaptive locks
where both spinning and sleeping can happen.
So, it's better to compare apples and apples.
1. Teach lockstat about FreeBSD rw locks.
This is done in part by changing the corresponding probes
and in part by changing what probes lockstat should expect.
2. Teach lockstat that rw locks are adaptive and can spin on FreeBSD.
3. Report lock acquisition events for successful rw try-lock operations.
4. Teach lockstat about FreeBSD sx locks.
Reporting of events for those locks completely mirrors
rw locks.
5. Report spin and block events before acquisition event.
This is behavior documented for the upstream, so it makes sense to stick
to it. Note that because of FreeBSD adaptive lock implementations
both the spin and block events may be reported for the same acquisition
while the upstream reports only one of them.
Differential Revision: https://reviews.freebsd.org/D2727
Reviewed by: markj
MFC after: 17 days
Relnotes: yes
Sponsored by: ClusterHQ
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While here, declare some global variables as static to silence clang
warnings.
Differential Revision: D2722
Reviewed by: delphij, mahrens
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The "depends_on module" pragma can be used to declare a dependency on a
DTrace module, which for kernel probes corresponds to a KLD. Such
dependencies cannot be checked if the KLD is compiled into the kernel.
Therefore, allow a module dependency to be satisfied if either a kernel
module or a KLD with the specified name is loaded.
Differential Revision: https://reviews.freebsd.org/D2653
Reviewed by: gnn, rpaulo
Reported by: gnn
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MFC after: 3 days
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freestanding (they require libraries build via make libraries in buildworld)
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
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Makefile
MFC with: r283144
Sponsored by: EMC / Isilon Storage Division
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Parallelize the build in this subdirectory
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
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Because of libdtrace there is still a bit a overlinking but nothing we can deal
with easily
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Make dtrace only link to libdtrace
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Remove dependency on pthread, it is not needed
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a test which now passes as a result of that change.
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default path of /usr/lib(32)/dtrace.
MFC after: 3 weeks
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which declares a dependency on siftr(4). This is necessitated by a
reference to struct pkt_node, which is defined in siftr(4): otherwise,
dtrace(1) will return an error during startup if siftr.ko is not loaded.
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return an error if one of the depends_on directives in a library is not
satisfied. In this case, libdtrace is supposed to ignore the library and
carry on. However, the remainder of the library may still be buffered by
the lexer, causing libdtrace to erroneously continue processing it on the
next call to yyparse(). Fix this by explicitly flushing the input buffer
each time the compiler state is reset.
MFC after: 3 weeks
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rather than writing directly to the output file.
CID: 1147172
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list of pending dynamic type definitions, a match on the type name is not
sufficient - we need to compare the type encodings as well. For example,
bitfields have their own distinct type definitions which share the name of
the underlying integer type, and these types aren't generally
interchangeable.
This bug was causing the following libdtrace error when attempting to trace
the th_flags member of a struct tcphdr:
cg: bad field: off 104 type <32877> bits 539620016
Reported by: rwatson
MFC after: 3 weeks
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the new SIFTR statically defined tracepoint (SDT).
Differential Revision: https://reviews.freebsd.org/D2387
Reviewed by: bz, markj
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To do: upstream (https://www.illumos.org/issues/5752)
MFC after: 10 days
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The format of these pages is somewhat experimental, so they may be subject
to further tweaking.
Differential Revision: https://reviews.freebsd.org/D2170
Reviewed by: bcr, rpaulo
MFC after: 2 weeks
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Passing "-x lazyload" to dtrace -G during compilation causes dtrace(1) to
not link drti.o into the output object file, so the USDT probes are not created
during process startup. Instead, dtrace(1) will automatically discover and
create probes on the process' behalf when attaching.
Differential Revision: https://reviews.freebsd.org/D2203
Reviewed by: rpaulo
MFC after: 1 month
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Reported by: Coverity (internal)
MFC after: 3 days
Sponsored by: EMC / Isilon Storage Division
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update expected test output to reflect differences in default TTL and
payload length.
MFC after: 1 week
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MFC after: 1 week
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script. This reimplementation is much simpler than dtest.pl and is more
amenable to being run under Kyua - dtest.pl writes error output to a
temporary directory that is deleted when the run finishes, making it hard
to debug test failures. This change also removes the test suite's dependency
on perl.
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libdtrace has a chance to capture the traced data.
MFC after: 1 week
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PR: 197391
MFC after: 3 days
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ctf_add_type() first performs a by-name lookup of the type in the
destination container. If this lookup returns a forward declaration for an
enum, struct, or union, reset dst_type back to CTF_ERR, indicating that the
source type is not in fact present in the destination container. This
ensures that ctf_add_type() will also search the destination container's
dynamic type list for the source type.
Without this change, a pair of mutually recursive struct definitions could
cause infinite recursion in ctf_add_type() if the destination container
only contained forward declarations for the struct types: ctf_add_type()
recursively calls itself on each struct member's type, and the forward
declarations meant that the dynamic type list search would be skipped.
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
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indicates the range of type indices which have been committed to the
container by ctf_update(). However, the top bit of the dtd_type field is
not part of the type index; rather, it is a flag used to indicate that the
corresponding CTF container is a parent. This is why the maximum CTF type
index is 2^15 - 1 rather than 2^16 - 1. Therefore, this flag must be masked
off (using the CTF_TYPE_TO_INDEX macro) when comparing a type index with the
ctf_dtoldid field of a container.
This bug was causing libctf to erroneously free committed type definitions
in ctf_discard(). libdtrace holds some references to such types, resulting
in a use-after-free.
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
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