runtime: crash in MSpan_Sweep with Go 1.4 #15769
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No panic should happen
goroutine 3 [running]:
goroutine 1 [select (no cases), 39 minutes]:
goroutine 5 [chan receive, 39 minutes]:
goroutine 11 [IO wait]:
goroutine 7 [IO wait]:
goroutine 9 [IO wait, 37 minutes]:
goroutine 13 [runnable]:
goroutine 12 [select]:
goroutine 36 [IO wait]:
Unfortunately, Go 1.4 is no longer supported. The garbage collector has been completely rewritten, so there is no particular reason to think that the same problem exists in current Go. That said, if possible please try your program with Go 1.6.2.
I would suggest running your program under the race detector.