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runtime: fix nmspinning comparison
nmspinning has a value range of [0, 2^31-1]. Update the comment to indicate this and fix the comparison so it's not always false. Fixes #11280 Change-Id: Iedaf0654dcba5e2c800645f26b26a1a781ea1991 Reviewed-on: https://go-review.googlesource.com/13877 Reviewed-by: Minux Ma <minux@golang.org>
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@ -1538,7 +1538,7 @@ func resetspinning() {
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if _g_.m.spinning {
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_g_.m.spinning = false
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nmspinning = xadd(&sched.nmspinning, -1)
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if nmspinning < 0 {
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if int32(nmspinning) < 0 {
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throw("findrunnable: negative nmspinning")
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}
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} else {
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@ -429,7 +429,7 @@ type schedt struct {
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pidle puintptr // idle p's
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npidle uint32
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nmspinning uint32
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nmspinning uint32 // limited to [0, 2^31-1]
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// Global runnable queue.
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runqhead guintptr
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