Fixes #18250

Change-Id: I4f61591356ddb4a906c206ad8456d1839daf7b91
Reviewed-on: https://go-review.googlesource.com/34170
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: David Crawshaw <crawshaw@golang.org>

The combination of two prior CLs can cause panics:
* CL/17873: make chained multiReader Read more efficient
* CL/28533: make MultiReader nil exhausted Readers for earlier GC

The first CL allows MultiReader to "inherit" another MultiReader's list of Readers
for efficiency reasons. This is problematic when combined with the
later CL since that can set prior Readers in that list to nil for GC reasons.
This causes panics when two MultiReaders are used together (even synchronously).

To fix this, rather than setting consumed Readers as nil, we set them with
a special eofReader that always returns EOF.

Fixes #18232

Change-Id: I2a9357ab217e3d54d38ea9022d18e4d14f4182d3
Reviewed-on: https://go-review.googlesource.com/34140Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #18240.

Change-Id: Ife951e2c1320b3f1362c85642615b24fd4291189
Reviewed-on: https://go-review.googlesource.com/34135Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I929f66b713525f5273cf0fe09579835603279b58
Reviewed-on: https://go-review.googlesource.com/34023Reviewed-by: Ian Lance Taylor <iant@golang.org>

Change-Id: I271707dee03fd97cd37bfb116eb00a5532034b57
Reviewed-on: https://go-review.googlesource.com/34020
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

This adds a counter for the number of times the application forced a
GC by, e.g., calling runtime.GC(). This is useful for detecting
applications that are overusing/abusing runtime.GC() or
debug.FreeOSMemory().

Fixes #18217.

Change-Id: I990ab7a313c1b3b7a50a3d44535c460d7c54f47d
Reviewed-on: https://go-review.googlesource.com/34067Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ib9ba8f0b8785f1b0ddb29214beb8674dc06f7422
Reviewed-on: https://go-review.googlesource.com/34111Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

While processing a symbol for a function, if it is determined
that a function would make the text section too large then
a new text section is created and the address of the function
is in the new text section.  But the symbol for the function
is marked as being in the previous text section, causing
incorrect codegen for the function and leading to a segv if
that function is called.  This adds code to set the sym.Sect
field to the new section if a new one is created.  Note that
this problem only happens at the point where a new section is
created.

Fixes #18218

Change-Id: Ic21ae11368d9d88ff6d5d3977f9ea72fe6477ed1
Reviewed-on: https://go-review.googlesource.com/34069
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

150 is too high for some people.

Reports of 132, 145, 149 on OS X.

Fixes #18203

Change-Id: I559639aba7e87e07d1a1249f8b212b3f34a078ab
Reviewed-on: https://go-review.googlesource.com/34019Reviewed-by: Russ Cox <rsc@golang.org>

When we copy the stack, we need to adjust all BPs.
We correctly adjust the ones on the stack, but we also
need to adjust the one that is in g.sched.bp.

Like CL 33754, no test as only kernel-gathered profiles will notice.
Tests will come (in 1.9) with the implementation of #16638.

The invariant should hold that every frame pointer points to
somewhere within its stack.  After this CL, it is mostly true, but
something about cgo breaks it.  The runtime checks are disabled
until I figure that out.

Update #16638
Fixes #18174

Change-Id: I6023ee64adc80574ee3e76491d4f0fa5ede3dbdb
Reviewed-on: https://go-review.googlesource.com/33895Reviewed-by: Austin Clements <austin@google.com>

Change-Id: If30ccfcf56d56fb40102ad567a980793bd39f320
Reviewed-on: https://go-review.googlesource.com/34071Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

Fixes #16821.

Change-Id: I63d5f3d7cfba1c76259912d754025c5f3cbe4a56
Reviewed-on: https://go-review.googlesource.com/31573
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Previously it was possible to craft a DSA private key that would cause
Sign() to loop forever because no signature could be valid. This change
does some basic sanity checks and ensures that Sign will always
terminate.

Thanks to Yolan Romailler for highing this.

Be aware, however, that it's still possible for an attacker to simply
craft a private key with enormous values and thus cause Sign to take an
arbitrary amount of time.

Change-Id: Icd53939e511eef513a4977305dd9015d9436d0ce
Reviewed-on: https://go-review.googlesource.com/33725Reviewed-by: Yolan Romailler <y@romailler.ch>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>

Fixes TestLookupPort_Minimal on android.

Fixes #18213

Change-Id: I1b65e790525d339a4cb7f17afe7e3a02c4587302
Reviewed-on: https://go-review.googlesource.com/34014Reviewed-by: Russ Cox <rsc@golang.org>

It is reported as failing for two people (issues #18202 and #18212).
The failure mode is that the system gets overloaded and other programs
fail to run.

Fixes #18202.

Change-Id: I1f1ca1f5d8eed6cc3a9dffac3289851e09fa662b
Reviewed-on: https://go-review.googlesource.com/34017
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #18153

Change-Id: Ie8a32dd6fe306f00e51cde77dd4ea353f7109940
Reviewed-on: https://go-review.googlesource.com/34010Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #18207

Change-Id: Ibe85ab0acba7553b93603a31140b31bd9e4802cf
Reviewed-on: https://go-review.googlesource.com/34015Reviewed-by: Ian Lance Taylor <iant@golang.org>

Mention that the best-effort race detector on maps
was upgraded to detect write/iterate races.

Fixes #18137

Change-Id: Ib6e0adde47e965126771ea712386031a2a55eba3
Reviewed-on: https://go-review.googlesource.com/33768Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

This CL adds a simple example for StructOf.
The example shows how StructOf can be used in a JSON roundtrip.

Change-Id: I9ff1ea9cb8c0cf297c5fae74e68b89931076adfd
Reviewed-on: https://go-review.googlesource.com/33953
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>

Updates bundled x/net/http2 to git rev 8dab9293 for:

    http2: make Transport retry on server's GOAWAY graceful shutdown
    https://golang.org/cl/33971

Fixes #18083

Change-Id: I676f5eb4b490a4d86356778bb17296c451f16d90
Reviewed-on: https://go-review.googlesource.com/34011
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tom Bergan <tombergan@google.com>

Conditioning on the plugin.Open symbol existing before loading all
symbols means sometimes some packages don't have a hash value.

Fixes #17928

Change-Id: I2722449aa58eca08a25117d3ce976f11f805b5ac
Reviewed-on: https://go-review.googlesource.com/33925
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Change-Id: I811e76c9f42505e974bea634d4ded2499e4893db
Reviewed-on: https://go-review.googlesource.com/33926Reviewed-by: Ian Lance Taylor <iant@golang.org>

Fixes #13263.

Change-Id: Ie1cafc62b6bfe6c5381c35d9a95563267b4cc9b0
Reviewed-on: https://go-review.googlesource.com/33970Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

While we're at it, also mention OpenBSD/ARM support.

Change-Id: I4df4a158b67d11720146d05a235099d452295170
Reviewed-on: https://go-review.googlesource.com/33854Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Seen on the OpenBSD/AMD64 builder:
https://build.golang.org/log/fa34df1bcd3af12d4fc0fb0e60e3c6197a2a6f75

Update #18146.

Change-Id: I2646621488be84d50f47c312baa0817c72e3c058
Reviewed-on: https://go-review.googlesource.com/33907
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I84043b6fe4b20a2514d47217e07e44f26bec52ab
Reviewed-on: https://go-review.googlesource.com/33973Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

For reasons that I do not know, OpenBSD does not call pthread_create
directly, but instead looks it up in libpthread.so. That means that we
can't use the code used on other systems to retry pthread_create on
EAGAIN, since that code simply calls pthread_create.

This patch copies that code to an OpenBSD-specific version.

Also, check for an EAGAIN failure in the test, as that seems to be the
underlying cause of the test failure on several systems including OpenBSD.

Fixes #18146.

Change-Id: I3bceaa1e03a7eaebc2da19c9cc146b25b59243ef
Reviewed-on: https://go-review.googlesource.com/33905
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fails on builder for unknown reasons.

Fixes #18198.
Update #18146.

Change-Id: Iaa85826655eee57d86e0c73d06c930ef3f4647ec
Reviewed-on: https://go-review.googlesource.com/33906
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Fixes #18140.

Change-Id: I527719576bc7198c79bb8bc51d258a71b2d5b296
Reviewed-on: https://go-review.googlesource.com/33853Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Update #18146.

Change-Id: Ib447aabae9f203a8b61fb8c984b57d8e2bfe69c2
Reviewed-on: https://go-review.googlesource.com/33894
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Seems to be fixed according to discussion on issue 16396.

Fixes #16396.

Change-Id: Ibac7037a24280204e48cb4d3000af524f65afd36
Reviewed-on: https://go-review.googlesource.com/33903
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I8982cfa7337ec457b5235a207ebfda00ef6a2e5a
Reviewed-on: https://go-review.googlesource.com/33917
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

In writebarrier phase, a chain of StoreWBs is rewritten to branchy
code to invoke write barriers, and the last store in the chain is
spliced into a Phi op to join the memory of the two branches. We
must find the last store explicitly, since the values are not
scheduled and they may not come in dependency order.

Fixes #18169.

Change-Id: If547e3c562ef0669bc5622c1bb711904dc36314d
Reviewed-on: https://go-review.googlesource.com/33915
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>

Fixes #18180.

Change-Id: I7006fe6cf08139e5aaaf35412b962a4e82109f59
Reviewed-on: https://go-review.googlesource.com/33898Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

CL https://go-review.googlesource.com/33899 added
application/json as a mimeType for valid JS. Let's
lock that fix in with a test.

Updates #18159

Change-Id: Ic4dfd8929aebfc5410f796688f081ca06630f672
Reviewed-on: https://go-review.googlesource.com/33901
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Nodir Turakulov <nodir@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>

Since ffd1c781 HTML templates check
MIME type in the "type" attribute of "script" tag to decide if contents
should be escaped as JavaScript. The whitelist of MIME types did not
include application/json. Include it in this CL.

Fixes #18159

Change-Id: I17a8a38f2b7789b4b7e941d14279de222eaf2b6a
Reviewed-on: https://go-review.googlesource.com/33899Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

In https://golang.org/cl/33804 I screwed up a GOOS == "windows"
check into a bogus comparison against GOARCH == "windows".

But turns out the builders are happy anyway, so remove the windows
special case.

Change-Id: I820b1d49d5b3e8cbffe4516fc39f514326dc39f8
Reviewed-on: https://go-review.googlesource.com/33893
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Updates #18173

Change-Id: I4c667c89ba3bf16433a4cef7cb01054f1798667d
Reviewed-on: https://go-review.googlesource.com/33892
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

Change-Id: I9277e869e171d9e051ff9a70ac578b8127fa74f8
Reviewed-on: https://go-review.googlesource.com/33897
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Change-Id: I5e33db9e63f70706882b85ab124a48509797b05a
Reviewed-on: https://go-review.googlesource.com/33790
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>