runtime: add a lock partial order edge (assistQueue -> mspanSpecial)
From interesting stack trace from GC assist through memory profiling to
addspecial().
Fixes #39022
Change-Id: Ia0506b820fe29ae91490b61c4e9c2fffcad9f7d6
Reviewed-on: https://go-review.googlesource.com/c/go/+/233599
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
diff --git a/src/runtime/lockrank.go b/src/runtime/lockrank.go
index 899c4e2..d97afac 100644
--- a/src/runtime/lockrank.go
+++ b/src/runtime/lockrank.go
@@ -214,7 +214,7 @@
lockRankNotifyList: {},
lockRankTraceBuf: {lockRankScavenge},
lockRankTraceStrings: {lockRankTraceBuf},
- lockRankMspanSpecial: {lockRankScavenge, lockRankCpuprof, lockRankSched, lockRankAllg, lockRankAllp, lockRankTimers, lockRankItab, lockRankReflectOffs, lockRankHchan, lockRankNotifyList, lockRankTraceBuf, lockRankTraceStrings},
+ lockRankMspanSpecial: {lockRankScavenge, lockRankAssistQueue, lockRankCpuprof, lockRankSched, lockRankAllg, lockRankAllp, lockRankTimers, lockRankItab, lockRankReflectOffs, lockRankHchan, lockRankNotifyList, lockRankTraceBuf, lockRankTraceStrings},
lockRankProf: {lockRankScavenge, lockRankAssistQueue, lockRankCpuprof, lockRankSweep, lockRankSched, lockRankAllg, lockRankAllp, lockRankTimers, lockRankItab, lockRankReflectOffs, lockRankNotifyList, lockRankTraceBuf, lockRankTraceStrings, lockRankHchan},
lockRankGcBitsArenas: {lockRankScavenge, lockRankAssistQueue, lockRankCpuprof, lockRankSched, lockRankAllg, lockRankTimers, lockRankItab, lockRankReflectOffs, lockRankNotifyList, lockRankTraceBuf, lockRankTraceStrings, lockRankHchan},
lockRankRoot: {},
