diff options
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/mgcmark.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/runtime/mgcmark.go b/src/runtime/mgcmark.go index f713841cfa..bf69172f6a 100644 --- a/src/runtime/mgcmark.go +++ b/src/runtime/mgcmark.go @@ -882,6 +882,13 @@ func gcDrain(gcw *gcWork, flags gcDrainFlags) { b = gcw.tryGetFast() if b == 0 { b = gcw.tryGet() + if b == 0 { + // Flush the write barrier + // buffer; this may create + // more work. + wbBufFlush(nil, 0) + b = gcw.tryGet() + } } } if b == 0 { @@ -963,6 +970,12 @@ func gcDrainN(gcw *gcWork, scanWork int64) int64 { b := gcw.tryGetFast() if b == 0 { b = gcw.tryGet() + if b == 0 { + // Flush the write barrier buffer; + // this may create more work. + wbBufFlush(nil, 0) + b = gcw.tryGet() + } } if b == 0 { |