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testing: update permitted number of -race goroutines

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The value 8128 appears to be correct as of 2021-03-23. The value is
determined by the value of kMaxTid currently at

https://github.com/llvm/llvm-project/blob/main/compiler-rt/lib/tsan/rtl/tsan_defs.h#L68

Fixes #45193

Change-Id: If4a30d7dbebd6775bede42f565dc8a741b8b036c
Reviewed-on: https://go-review.googlesource.com/c/go/+/304254
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
This commit is contained in:
Ian Lance Taylor 2021-03-23 15:44:46 -07:00
parent 179bcd787e
commit 29ed12d4c7
1 changed files with 1 additions and 1 deletions
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2
src/testing/testing.go
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@ -190,7 +190,7 @@
// }
// }
//
// The race detector kills the program if it exceeds 8192 concurrent goroutines,
// The race detector kills the program if it exceeds 8128 concurrent goroutines,
// so use care when running parallel tests with the -race flag set.
//
// Run does not return until parallel subtests have completed, providing a way