diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/pkg/runtime/mgc0.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/pkg/runtime/mgc0.c b/src/pkg/runtime/mgc0.c index 59dfd51e65..f46d329017 100644 --- a/src/pkg/runtime/mgc0.c +++ b/src/pkg/runtime/mgc0.c @@ -451,7 +451,8 @@ scanblock(byte *b, uintptr n, byte *ptrmask) // quadruple is already marked. Otherwise we resort to CAS // loop for marking. bits8 = xbits>>(shift&~7); - if((bits8&(bitMask|(bitMask<<gcBits))) != (bitBoundary|(bitBoundary<<gcBits))) + if((bits8&(bitMask|(bitMask<<gcBits))) != (bitBoundary|(bitBoundary<<gcBits)) || + work.nproc == 1) ((uint8*)bitp)[shift/8] = bits8 | (bitMarked<<(shift&7)); else { for(;;) { |