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Change-Id: I0899ec0150f2a051b7572879b446a8548f742ae0
Reviewed-on: https://go-review.googlesource.com/58731
Run-TryBot: Chris Broadfoot <cbro@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Pre-emptive. Go 1.9 is expected to be released in August.
Change-Id: I0f58c012c4110bf490022dc2c1d69c0988d73bfa
Reviewed-on: https://go-review.googlesource.com/52351
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/58730
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Change-Id: I97075f24319a4b96cbeb9e3ff2e7b2056ff59e32
Reviewed-on: https://go-review.googlesource.com/58651
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-on: https://go-review.googlesource.com/58710
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Change-Id: I71bfff6a3462e6dfd7a65ef76ec56644bae37c34
Reviewed-on: https://go-review.googlesource.com/57272
Reviewed-by: Avelino <t@avelino.xxx>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-on: https://go-review.googlesource.com/58650
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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[This is a cherry-pick of CL 54090 to the 1.9 release branch.]
gc.Sysfunc must not be called concurrently.
We set up runtime routines used by the backend
prior to doing any backend compilation.
I missed the 387 ones; fix that.
Sysfunc should have been unexported during 1.9.
I will rectify that in a subsequent CL.
Fixes #21352
Change-Id: I485bb1867b46d8e5cf64bc820b8963576dc16174
Reviewed-on: https://go-review.googlesource.com/55970
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
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to the library".
Backport of https://golang.org/cl/57390 to 1.9 release branch.
Change-Id: Ieea5a048732db7ee5dc5cf13f06e11ca4f5313cc
Reviewed-on: https://go-review.googlesource.com/57450
Reviewed-by: Keith Randall <khr@golang.org>
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Because profile labels are copied from the goroutine into the tag
buffer by the signal handler, there's a carefully-crafted set of race
detector annotations to create the necessary happens-before edges
between setting a goroutine's profile label and retrieving it from the
profile tag buffer.
Given the constraints of the signal handler, we have to approximate
the true synchronization behavior. Currently, that approximation is
too weak.
Ideally, runtime_setProfLabel would perform a store-release on
&getg().labels and copying each label into the profile would perform a
load-acquire on &getg().labels. This would create the necessary
happens-before edges through each individual g.labels object.
Since we can't do this in the signal handler, we instead synchronize
on a "labelSync" global. The problem occurs with the following
sequence:
1. Goroutine 1 calls setProfLabel, which does a store-release on
labelSync.
2. Goroutine 2 calls setProfLabel, which does a store-release on
labelSync.
3. Goroutine 3 reads the profile, which does a load-acquire on
labelSync.
The problem is that the load-acquire only synchronizes with the *most
recent* store-release to labelSync, and the two store-releases don't
synchronize with each other. So, once goroutine 3 touches the label
set by goroutine 1, we report a race.
The solution is to use racereleasemerge. This is like a
read-modify-write, rather than just a store-release. Each RMW of
labelSync in runtime_setProfLabel synchronizes with the previous RMW
of labelSync, and this ultimately carries forward to the load-acquire,
so it synchronizes with *all* setProfLabel operations, not just the
most recent.
Change-Id: Iab58329b156122002fff12cfe64fbeacb31c9613
Reviewed-on: https://go-review.googlesource.com/57190
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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The code was adding race.Errors to t.raceErrors before checking
Failed, but Failed was using t.raceErrors+race.Errors. We don't want
to change Failed, since that would affect tests themselves, so modify
the harness to not unnecessarily change t.raceErrors.
Updates #19851
Fixes #21338
Change-Id: I483f27c68c340928f1cbdef160abc0a5716efb5d
Reviewed-on: https://go-review.googlesource.com/57151
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Fixes #21456
Change-Id: I7841d816e8c1c581e61db4f24124f99f5184fead
Reviewed-on: https://go-review.googlesource.com/57170
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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constant 1<<63
Cherry-pick CL 56890.
Normally 64-bit div/mod is turned into runtime calls on 32-bit
arch, but the front end leaves power-of-two constant division
and hopes the SSA backend turns into a shift or AND. The SSA rule is
(Mod64u <t> n (Const64 [c])) && isPowerOfTwo(c) -> (And64 n (Const64 <t> [c-1]))
But isPowerOfTwo returns true only for positive int64, which leaves
out 1<<63 unhandled. Add a special case for 1<<63.
Fixes #21517.
Change-Id: Ic91f86fd5e035a8bb64b937c15cb1c38fec917d6
Reviewed-on: https://go-review.googlesource.com/57070
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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parameter for pselect6
Fixes #21518
Change-Id: Idd67e3f0410d0ce991b34dcc0c8f15e0d5c529c9
Reviewed-on: https://go-review.googlesource.com/56891
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Petrica Voicu <pvoicu@paypal.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Change-Id: If95cec0ec7e32cdb450818c4c55e2d03b847ab65
Reviewed-on: https://go-review.googlesource.com/53630
Reviewed-by: Austin Clements <austin@google.com>
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579120323f runtime: mapassign_* should use typedmemmove to update keys
380525598c all: remove some manual hyphenation
f096b5b340 runtime: mark activeModules nosplit/nowritebarrier
3e3da54633 math/bits: fix example for OnesCount64
9b1e7cf2ac math/bits: add examples for OnesCount functions
b01db023b1 misc/cgo/testsanitizers: also skip tsan11/tsan12 when using GCC
a279b53a18 reflect: document how DeepEqual handles cycles
909f409a8d doc: mention handling of moved GOROOT in 1.9 release notes
58ad0176ca doc: use better wording to explain type-aware completion
92dac21d29 doc: replace paid with commercial
9bb98e02de doc/1.9: add CL 43712, ReverseProxy of HTTP/2 trailers to the release notes.
78d74fc2cd doc: clarify that Gogland is for paid IntelliJ platform IDEs
5495047223 doc/1.9: fix broken html link in CL 53030/53210
890e0e862f doc: fix bad link in go1.9 release notes
be596f049a doc/1.9: fix stray html in CL 53030
0173631d53 encoding/binary: add examples for varint functions
ac0ccf3cd2 doc/1.9: add CL 36696 for crypto/x509 to the release notes
cc402c2c4d doc: hide blog content for golang.google.cn
f396fa4285 internal/poll: don't add non-sockets to runtime poller
664cd26c89 cmd/vet: don't exit with failure on type checking error
a8730cd93a doc: hide video and share if being served from CN
b63db76c4a testsanitizers: check that tsan program runs, skip tsan10 on gcc
193eda7291 time: skip ZoneAbbr test in timezones with no abbreviation
6f08c935a9 cmd/go: show examples with empty output in go test -list
f20944de78 cmd/compile: set/unset base register for better assembly print
623e2c4603 runtime: map bitmap and spans during heap initialization
780249eed4 runtime: fall back to small mmaps if we fail to grow reservation
31b2c4cc25 .github: add .md extension to SUPPORT file
ac29f30dbb plugin: mention that there are known bugs with plugins
45a4609c0a cmd/dist: skip moved GOROOT on Go's Windows builders when not sharding tests
e157fac02d test: add README
835dfef939 runtime/pprof: prevent a deadlock that SIGPROF might create on mips{,le}
df91b8044d doc: list editor options by name, not plugin name
3d9475c04b doc: cleanup editor page
b9661a14ea doc: add Atom to editor guide
ee392ac10c cmd/compile: consider exported flag in namedata
Change-Id: I3a48493e8c05d97cb3b61635503ef0ccd646e5cb
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We need to make sure that when the key contains a pointer, we use
a write barrier to update the key.
Also mapdelete_* should use typedmemclr.
Fixes #21297
Change-Id: I63dc90bec1cb909c2c6e08676c9ec853d736cdf8
Reviewed-on: https://go-review.googlesource.com/53414
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Manual hyphenation doesn't work well when text gets reflown,
for example by godoc.
There are a few other manual hyphenations in the tree,
but they are in local comments or comments for unexported functions.
Change-Id: I17c9b1fee1def650da48903b3aae2fa1e1119a65
Reviewed-on: https://go-review.googlesource.com/53510
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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The activeModules function is called by the cgo pointer checking code,
which is called by the write barrier (when GODEBUG=cgocheck=2), and as
such must be nosplit/nowritebarrier.
Fixes #21306
Change-Id: I57f2124f14de7f3872b2de9532abab15df95d45a
Reviewed-on: https://go-review.googlesource.com/53352
Reviewed-by: Austin Clements <austin@google.com>
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Erroneously called OnesCount instead of OnesCount64
Change-Id: Ie877e43f213253e45d31f64931c4a15915849586
Reviewed-on: https://go-review.googlesource.com/53410
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Change-Id: Ie673f9665825a40281c2584d478ba1260f725856
Reviewed-on: https://go-review.googlesource.com/53357
Run-TryBot: Chris Broadfoot <cbro@golang.org>
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Updates #21196
Change-Id: I307cacc963448b90a23f633bec15498ba7bf1937
Reviewed-on: https://go-review.googlesource.com/53356
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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Fixes #20428
Change-Id: Ia450e615728efd4ccb6e42117b547cac162f13a3
Reviewed-on: https://go-review.googlesource.com/52931
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
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Updates #20587
Change-Id: Ia131b9a4dc4986950d9ecbfcbd6b026ade234fc0
Reviewed-on: https://go-review.googlesource.com/53370
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Some editors can filter the autocompletion suggestions based on
whether the code will compile once autocompleted. Explain this
feature with better wording.
Change-Id: I29e4b0396878f18c79208915402c0a209a813b04
Reviewed-on: https://go-review.googlesource.com/53355
Reviewed-by: Florin Patan <florinpatan@gmail.com>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
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Change-Id: I3e6de4da0648f61e254c7597f316df3e5791321a
Reviewed-on: https://go-review.googlesource.com/53354
Reviewed-by: Andrew Bonventre <andybons@golang.org>
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Add https://go-review.googlesource.com/c/43712,
"net/http/httputil: ReverseProxy should pass on unannounced Trailers"
to the relase notes.
Fixes #21307
Change-Id: I52c126987a5d0abc4153c0e71b535529c46cd457
Reviewed-on: https://go-review.googlesource.com/53290
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Fixes #21213.
Change-Id: I7b8a84de92bbd1d3f78f8a9612f3af8cd092cb94
Reviewed-on: https://go-review.googlesource.com/53351
Reviewed-by: Andrew Bonventre <andybons@golang.org>
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Change-Id: I7176becd10ad84cbfc3fb9427e190028626e5baf
Reviewed-on: https://go-review.googlesource.com/53291
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Change-Id: I64ba37428f5cc560f0f20fe039feaecf5fcda93e
Reviewed-on: https://go-review.googlesource.com/53330
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Change-Id: Ib4102b1e2a8863712f725c4d1e37fdbe3dfe3c07
Reviewed-on: https://go-review.googlesource.com/53210
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Change-Id: I191f6e46b452fadde9f641140445d843b0c7d534
Reviewed-on: https://go-review.googlesource.com/48604
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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add https://go-review.googlesource.com/c/36696
"crypto/x509: ignore CN if SAN extension present"
to the release notes.
Fixes #21289
Change-Id: Ifa184d3816806a8da3c67b68476c923329acf13e
Reviewed-on: https://go-review.googlesource.com/53030
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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/blog redirects to blog.golang.org (currently blocked in China)
unless there is a local checkout of golang.org/x/blog, which is
not possible on App Engine Classic.
Change-Id: Ia695e663c9bebcc6c3bedea324c630299eaad4dc
Reviewed-on: https://go-review.googlesource.com/53051
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Updates #21172
Change-Id: I0fec6e645328bbc85f3e47f4f71dd8d1d68c75ab
Reviewed-on: https://go-review.googlesource.com/52551
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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The vet tool only reports a type checking error when invoked with -v.
Don't let that by itself cause vet to exit with an error exit status.
Updates #21188
Change-Id: I172c13d46c35d49e229e96e833683d8c82a77de7
Reviewed-on: https://go-review.googlesource.com/52851
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
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In the case where requests are coming from mainland China, hide
links to locations that are blocked and functionality that is
not permitted.
Additionally, some very small cleanup of the JS.
This change requires https://go-review.googlesource.com/c/52873
Change-Id: I7fc68748e629dbe5b966d6bf117e7f7b546966eb
Reviewed-on: https://go-review.googlesource.com/52872
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Check not only that a tsan program can be built, but also that it runs.
This fails with some installations of GCC 7.
Skip the tsan10 program when using GCC, as it reportedly hangs.
This is a patch to help people build 1.9; we may be able to do a
better fix for 1.10.
Updates #21196
Change-Id: Icd1ffbd018dc65a97ff45cab1264b9b0c7fa0ab2
Reviewed-on: https://go-review.googlesource.com/52790
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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The testZoneAbbr assumes that
Parse(RFC1123, t1.Format(RFC1123))
will always succeed. This is not true because Format will fall back to
the numeric zone (ex. -07) for timezones with no abbreviation, but
Parse won't accept the numeric zone when the layout specifies 'MST'
(an abbreviation).
Skip the zone abbreviation test in timezones with no abbreviation.
Fixes #21183
Change-Id: If04691cc23ae1075d8a953733024e17f5a7646de
Reviewed-on: https://go-review.googlesource.com/52430
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Fixes #21205
Change-Id: I81b001eb42cbf2a5d5b7b82eb63548b22f501be5
Reviewed-on: https://go-review.googlesource.com/52110
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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For address of an auto or arg, on all non-x86 architectures
the assembler backend encodes the actual SP offset in the
instruction but leaves the offset in Prog unchanged. When the
assembly is printed in compile -S, it shows an offset
relative to pseudo FP/SP with an actual hardware SP base
register (e.g. R13 on ARM). This is confusing. Unset the
base register if it is indeed SP, so the assembly output is
consistent. If the base register isn't SP, it should be an
error and the error output contains the actual base register.
For address loading instructions, the base register isn't set
in the compiler on non-x86 architectures. Set it. Normally it
is SP and will be unset in the change mentioned above for
printing. If it is not, it will be an error and the error
output contains the actual base register.
No change in generated binary, only printed assembly. Passes
"go build -a -toolexec 'toolstash -cmp' std cmd" on all
architectures.
Fixes #21064.
Change-Id: Ifafe8d5f9b437efbe824b63b3cbc2f5f6cdc1fd5
Reviewed-on: https://go-review.googlesource.com/49432
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
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We lazily map the bitmap and spans areas as the heap grows. However,
right now we're very slightly too lazy. Specifically, the following
can happen on 32-bit:
1. mallocinit fails to allocate any heap arena, so
arena_used == arena_alloc == arena_end == bitmap.
2. There's less than 256MB between the end of the bitmap mapping and
the next mapping.
3. On the first allocation, mheap.sysAlloc sees that there's not
enough room in [arena_alloc, arena_end) because there's no room at
all. It gets a 256MB mapping from somewhere *lower* in the address
space than arena_used and sets arena_alloc and arena_end to this
hole.
4. Since the new arena_alloc is lower than arena_used, mheap.sysAlloc
doesn't bother to call mheap.setArenaUsed, so we still don't have a
bitmap mapping or a spans array mapping.
5. mheap.grow, which called mheap.sysAlloc, attempts to fill in the
spans array and crashes.
Fix this by mapping the metadata regions for the initial arena_used
when the heap is initialized, rather than trying to wait for an
allocation. This maintains the intended invariant that the structures
are always mapped for [arena_start, arena_used).
Fixes #21044.
Cherry-pick of CL 51714. Fixes #21234.
Change-Id: I4422375a6e234b9f979d22135fc63ae3395946b0
Reviewed-on: https://go-review.googlesource.com/52191
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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reservation
Right now, if it's possible to grow the arena reservation but
mheap.sysAlloc fails to get 256MB more of memory, it simply fails.
However, on 32-bit we have a fallback path that uses much smaller
mmaps that could take in this situation, but fail to.
This commit fixes mheap.sysAlloc to use a common failure path in case
it can't grow the reservation. On 32-bit, this path includes the
fallback.
Ideally, mheap.sysAlloc would attempt smaller reservation growths
first, but taking the fallback path is a simple change for Go 1.9.
Updates #21044 (fixes one of two issues).
Cherry-pick of CL 51713. Updates #21234.
Change-Id: I1e0035ffba986c3551479d5742809e43da5e7c73
Reviewed-on: https://go-review.googlesource.com/52190
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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We lazily map the bitmap and spans areas as the heap grows. However,
right now we're very slightly too lazy. Specifically, the following
can happen on 32-bit:
1. mallocinit fails to allocate any heap arena, so
arena_used == arena_alloc == arena_end == bitmap.
2. There's less than 256MB between the end of the bitmap mapping and
the next mapping.
3. On the first allocation, mheap.sysAlloc sees that there's not
enough room in [arena_alloc, arena_end) because there's no room at
all. It gets a 256MB mapping from somewhere *lower* in the address
space than arena_used and sets arena_alloc and arena_end to this
hole.
4. Since the new arena_alloc is lower than arena_used, mheap.sysAlloc
doesn't bother to call mheap.setArenaUsed, so we still don't have a
bitmap mapping or a spans array mapping.
5. mheap.grow, which called mheap.sysAlloc, attempts to fill in the
spans array and crashes.
Fix this by mapping the metadata regions for the initial arena_used
when the heap is initialized, rather than trying to wait for an
allocation. This maintains the intended invariant that the structures
are always mapped for [arena_start, arena_used).
Fixes #21044.
Change-Id: I4422375a6e234b9f979d22135fc63ae3395946b0
Reviewed-on: https://go-review.googlesource.com/51714
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Right now, if it's possible to grow the arena reservation but
mheap.sysAlloc fails to get 256MB more of memory, it simply fails.
However, on 32-bit we have a fallback path that uses much smaller
mmaps that could take in this situation, but fail to.
This commit fixes mheap.sysAlloc to use a common failure path in case
it can't grow the reservation. On 32-bit, this path includes the
fallback.
Ideally, mheap.sysAlloc would attempt smaller reservation growths
first, but taking the fallback path is a simple change for Go 1.9.
Updates #21044 (fixes one of two issues).
Change-Id: I1e0035ffba986c3551479d5742809e43da5e7c73
Reviewed-on: https://go-review.googlesource.com/51713
Run-TryBot: Austin Clements <austin@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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This makes GitHub render the markdown file automatically
on their web UI.
SUPPORT.md is the recommended file name according to the GitHub
documentation:
https://help.github.com/articles/adding-support-resources-to-your-project/
Fixes #21223
Change-Id: I9f9b9daced9c29a16850e8c446656f353f50b1ae
Reviewed-on: https://go-review.googlesource.com/52013
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Change-Id: I9e63661cac2bebc41d7aa3cd80e1920eec22b894
Reviewed-on: https://go-review.googlesource.com/51250
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
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when not sharding tests
Change-Id: I0bcae339624e7d61037d9ea0885b7bd07491bbb6
Reviewed-on: https://go-review.googlesource.com/51430
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 4833e920c1d7f6b23458e6ff3c73951fcf754219)
Reviewed-on: https://go-review.googlesource.com/51450
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Change-Id: I0bcae339624e7d61037d9ea0885b7bd07491bbb6
Reviewed-on: https://go-review.googlesource.com/51430
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Updates #21034
Change-Id: I951fb48ab3b9ed54d225c11879db8f09048a36a3
Reviewed-on: https://go-review.googlesource.com/50950
Reviewed-by: Rob Pike <r@golang.org>
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64bit atomics on mips/mipsle are implemented using spinlocks. If SIGPROF
is received while the program is in the critical section, it will try to
write the sample using the same spinlock, creating a deadloop.
Prevent it by creating a counter of SIGPROFs during atomic64 and
postpone writing the sample(s) until called from elsewhere, with
pc set to _LostSIGPROFDuringAtomic64.
Added a test case, per Cherry's suggestion. Works around #20146.
Change-Id: Icff504180bae4ee83d78b19c0d9d6a80097087f9
Reviewed-on: https://go-review.googlesource.com/42652
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
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So the users can recognize their option by their editor's name.
Fixes #20398.
Change-Id: Id314d4dbe26f40231a479b179620d7e66512b506
Reviewed-on: https://go-review.googlesource.com/51114
Reviewed-by: Chris Broadfoot <cbro@golang.org>
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Fix some UI issues introduced with CL50952:
- increase header colspan to account for additional column
- remove ':' character from footnotes
Change-Id: I56f59b8e4b2852612b3c6c7c0dfe99125dd8b57b
Reviewed-on: https://go-review.googlesource.com/51113
Reviewed-by: Jaana Burcu Dogan <jbd@google.com>
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