delta/go-git.git, branch go1.7rc4

go1.7rc4

2016-08-02T02:22:22+00:00

Change-Id: Icf861dd28bfe29a2e4b90529e53644b43b6f7969
Reviewed-on: https://go-review.googlesource.com/25368
Reviewed-by: Brad Fitzpatrick 
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot

all: merge master into release-branch.go1.7

2016-08-02T01:27:16+00:00

Change-Id: Ifb9647fa9817ed57aa4835a35a05020aba00a24e

net: prevent cancelation goroutine from adjusting fd timeout after connect

2016-08-02T00:55:45+00:00

This was previously fixed in https://golang.org/cl/21497 but not enough.

Fixes #16523

Change-Id: I678543a656304c82d654e25e12fb094cd6cc87e8
Reviewed-on: https://go-review.googlesource.com/25330
Run-TryBot: Brad Fitzpatrick 
Reviewed-by: Joe Tsai 
TryBot-Result: Gobot Gobot

doc/go1.7.html: mention Server.Serve HTTP/2 behavior change

2016-08-02T00:46:47+00:00

Fixes #16550
Updates #15908

Change-Id: Ic951080dbc88f96e4c00cdb3ffe24a5c03079efd
Reviewed-on: https://go-review.googlesource.com/25389
Reviewed-by: Chris Broadfoot

net/http: update bundled http2

2016-08-02T00:33:01+00:00

Updates bundled http2 to x/net/http2 rev 28d1bd4f for:

    http2: make Transport work around mod_h2 bug
    https://golang.org/cl/25362

    http2: don't ignore DATA padding in flow control
    https://golang.org/cl/25382

Updates #16519
Updates #16556
Updates #16481

Change-Id: I51f5696e977c91bdb2d80d2d56b8a78e3222da3f
Reviewed-on: https://go-review.googlesource.com/25388
Reviewed-by: Chris Broadfoot 
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot

cmd/compile: fix possible spill of invalid pointer with DUFFZERO on AMD64

2016-07-29T01:09:55+00:00

SSA compiler on AMD64 may spill Duff-adjusted address as scalar. If
the object is on stack and the stack moves, the spilled address become
invalid.

Making the spill pointer-typed does not work. The Duff-adjusted address
points to the memory before the area to be zeroed and may be invalid.
This may cause stack scanning code panic.

Fix it by doing Duff-adjustment in genValue, so the intermediate value
is not seen by the reg allocator, and will not be spilled.

Add a test to cover both cases. As it depends on allocation, it may
be not always triggered.

Fixes #16515.

Change-Id: Ia81d60204782de7405b7046165ad063384ede0db
Reviewed-on: https://go-review.googlesource.com/25309
Run-TryBot: Cherry Zhang 
TryBot-Result: Gobot Gobot 
Reviewed-by: David Chase

doc/go1.7.html: add known issues section for FreeBSD crashes

2016-07-28T03:03:42+00:00

Updates #16396

Change-Id: I7b4f85610e66f2c77c17cf8898cc41d81b2efc8c
Reviewed-on: https://go-review.googlesource.com/25283
Reviewed-by: Chris Broadfoot 
Reviewed-by: Ian Lance Taylor 
Reviewed-by: Andrew Gerrand

runtime: reduce GC assist extra credit

2016-07-27T18:56:04+00:00

Mutator goroutines that allocate memory during the concurrent mark
phase are required to spend some time assisting the garbage
collector. The magnitude of this mandatory assistance is proportional
to the goroutine's allocation debt and subject to the assistance
ratio as calculated by the pacer.

When assisting the garbage collector, a mutator goroutine will go
beyond paying off its allocation debt. It will build up extra credit
to amortize the overhead of the assist.

In fast-allocating applications with high assist ratios, building up
this credit can take the affected goroutine's entire time slice.
Reduce the penalty on each goroutine being selected to assist the GC
in two ways, to spread the responsibility more evenly.

First, do a consistent amount of extra scan work without regard for
the pacer's assistance ratio. Second, reduce the magnitude of the
extra scan work so it can be completed within a few hundred
microseconds.

Commentary on gcOverAssistWork is by Austin Clements, originally in
https://golang.org/cl/24704

Updates #14812
Fixes #16432

Change-Id: I436f899e778c20daa314f3e9f0e2a1bbd53b43e1
Reviewed-on: https://go-review.googlesource.com/25155
Run-TryBot: Austin Clements 
TryBot-Result: Gobot Gobot 
Reviewed-by: Austin Clements 
Reviewed-by: Rick Hudson 
Reviewed-by: Chris Broadfoot

net/http: fix data race with concurrent use of Server.Serve

2016-07-27T05:43:36+00:00

Fixes #16505

Change-Id: I0afabcc8b1be3a5dbee59946b0c44d4c00a28d71
Reviewed-on: https://go-review.googlesource.com/25280
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot 
Reviewed-by: Chris Broadfoot

crypto/x509: detect OS X version for FetchPEMRoots at run time

2016-07-26T23:16:15+00:00

https://golang.org/cl/25233 was detecting the OS X release at compile
time, not run time. Detect it at run time instead.

Fixes #16473 (again)

Change-Id: I6bec4996e57aa50c52599c165aa6f1fae7423fa7
Reviewed-on: https://go-review.googlesource.com/25281
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot 
Reviewed-by: Andrew Gerrand 
Reviewed-by: Chris Broadfoot