diff options
Diffstat (limited to 'src/runtime/mgcmark.go')
| -rw-r--r-- | src/runtime/mgcmark.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/mgcmark.go b/src/runtime/mgcmark.go index 197b6a808d..8e0a88f0a3 100644 --- a/src/runtime/mgcmark.go +++ b/src/runtime/mgcmark.go @@ -366,6 +366,9 @@ func gcDrain(gcw *gcWork) { } // gcDrainN scans n objects, blackening grey objects. +// +// This MUST be run on the system stack to prevent a stop-the-world +// while this locally holds GC work buffers. //go:nowritebarrier func gcDrainN(gcw *gcWork, n int) { checknocurrentwbuf() |