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| author | Dmitriy Vyukov <dvyukov@google.com> | 2014-03-13 19:04:00 +0400 |
|---|---|---|
| committer | Dmitriy Vyukov <dvyukov@google.com> | 2014-03-13 19:04:00 +0400 |
| commit | c115cda22c82e219654056f6864e9819b922febc (patch) | |
| tree | e00f006154582f4a5e3981b9e8379370d755ec01 /src/pkg/runtime/mem_linux.c | |
| parent | cdc93d24165af721030f05c9aa6c79605011ec1b (diff) | |
| download | go-c115cda22c82e219654056f6864e9819b922febc.tar.xz | |
runtime: improve efence
Mark free memory blocks as unused.
On amd64 it allows the process to eat all 128 GB of heap
without killing the machine.
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/74070043
Diffstat (limited to 'src/pkg/runtime/mem_linux.c')
| -rw-r--r-- | src/pkg/runtime/mem_linux.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/pkg/runtime/mem_linux.c b/src/pkg/runtime/mem_linux.c index bab05011ff..2ead204101 100644 --- a/src/pkg/runtime/mem_linux.c +++ b/src/pkg/runtime/mem_linux.c @@ -95,7 +95,7 @@ runtime·SysFree(void *v, uintptr n, uint64 *stat) void runtime·SysFault(void *v, uintptr n) { - runtime·mmap(v, n, PROT_NONE, 0, -1, 0); + runtime·mmap(v, n, PROT_NONE, MAP_ANON|MAP_PRIVATE|MAP_FIXED, -1, 0); } void* |