diff options
Diffstat (limited to 'src/pkg/runtime/mgc0.c')
| -rw-r--r-- | src/pkg/runtime/mgc0.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/pkg/runtime/mgc0.c b/src/pkg/runtime/mgc0.c index 6c2ce00953..dc3b877c4e 100644 --- a/src/pkg/runtime/mgc0.c +++ b/src/pkg/runtime/mgc0.c @@ -892,6 +892,12 @@ runtime·gc(int32 force) M *m1; uint32 i; + // The atomic operations are not atomic if the uint64s + // are not aligned on uint64 boundaries. This has been + // a problem in the past. + if((((uintptr)&work.empty) & 7) != 0) + runtime·throw("runtime: gc work buffer is misaligned"); + // The gc is turned off (via enablegc) until // the bootstrap has completed. // Also, malloc gets called in the guts |