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net/http: TestLinuxSendfile is flaky #17805

carl-mastrangelo opened this issue Nov 5, 2016 · 1 comment


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commented Nov 5, 2016

What version of Go are you using (go version)?

Fri Nov 04 05:09:56$ go version
go version go1.7.3 linux/amd64

What operating system and processor architecture are you using (go env)?

Fri Nov 04 05:09:54$ go env
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build238588156=/tmp/go-build -gno-record-gcc-switches"

What did you do?


What did you expect to see?

Successful build

What did you see instead?

ok  	net	1.795s
--- FAIL: TestLinuxSendfile (0.04s)
	fs_test.go:1123: no sendfile system call found in:
		[pid 122885] sendfile(6, 8, NULL, 22 <unfinished ...>
		[pid 122894] +++ exited with 0 +++
		[pid 122893] +++ exited with 0 +++
		[pid 122892] +++ exited with 0 +++
		[pid 122891] +++ exited with 0 +++
		+++ exited with 0 +++
FAIL	net/http	2.699s

It looks like the regexp to match sendfile is missing a matcher for "". Considering that this test appears to check just that sendfile is called, it should be enough that the call is started (as printed above).

@bradfitz bradfitz self-assigned this Nov 5, 2016

@bradfitz bradfitz added the Testing label Nov 5, 2016

@bradfitz bradfitz added this to the Go1.8 milestone Nov 5, 2016


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commented Nov 5, 2016

CL mentions this issue.

@gopherbot gopherbot closed this in f9d406e Nov 5, 2016

@golang golang locked and limited conversation to collaborators Nov 5, 2017

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