testing: log/syslog tests take too long when run with the race detector

[alberts]

Since about this change:

https://code.google.com/p/go/source/detail?r=8d5f80a6d6db

the log/syslog tests are timing out when run under the race detector:

go test -race log/syslog -v

=== RUN TestConcurrentReconnect-125
*** Test killed: ran too long (10m0s).
FAIL    log/syslog  600.009s

[ianlancetaylor]

Comment 1:

I'm not seeing this on my Ubuntu precise amd64 system.
> go test -race log/syslog -v
=== RUN TestWithSimulated
--- PASS: TestWithSimulated (0.81 seconds)
=== RUN TestFlap
--- PASS: TestFlap (0.00 seconds)
=== RUN TestNew
--- PASS: TestNew (0.00 seconds)
=== RUN TestNewLogger
--- PASS: TestNewLogger (0.00 seconds)
=== RUN TestDial
--- PASS: TestDial (0.00 seconds)
=== RUN TestWrite
--- PASS: TestWrite (1.21 seconds)
=== RUN TestConcurrentWrite
--- PASS: TestConcurrentWrite (0.00 seconds)
=== RUN TestConcurrentReconnect
--- PASS: TestConcurrentReconnect (0.03 seconds)
PASS
ok      log/syslog  3.071s

[alberts]

Comment 2:

Try a value of GOMAXPROCS>1?

[ianlancetaylor]

Comment 3:

Ah, right.  Confirmed:
GOMAXPROCS=8 go test -race log/syslog -v
=== RUN TestWithSimulated-8
--- PASS: TestWithSimulated-8 (0.81 seconds)
=== RUN TestFlap-8
--- PASS: TestFlap-8 (0.00 seconds)
=== RUN TestNew-8
--- PASS: TestNew-8 (0.00 seconds)
=== RUN TestNewLogger-8
--- PASS: TestNewLogger-8 (0.00 seconds)
=== RUN TestDial-8
--- PASS: TestDial-8 (0.00 seconds)
=== RUN TestWrite-8
--- PASS: TestWrite-8 (1.21 seconds)
=== RUN TestConcurrentWrite-8
--- PASS: TestConcurrentWrite-8 (0.00 seconds)
=== RUN TestConcurrentReconnect-8
*** Test killed: ran too long (10m0s).
FAIL    log/syslog  600.004s

Labels changed: added priority-soon, removed priority-triage.

Owner changed to @dvyukov.

Status changed to Accepted.

[ianlancetaylor]

Comment 4:

Labels changed: added go1.1.1.

[dvyukov]

Comment 5:

Just a deadlock in test

Status changed to Started.

[dvyukov]

Comment 6:

This issue was closed by revision 0806c97.

Status changed to Fixed.

[ianlancetaylor]

Comment 7:

Labels changed: removed go1.1.1.