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| author | Russ Cox <rsc@golang.org> | 2012-12-22 15:06:28 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2012-12-22 15:06:28 -0500 |
| commit | 295a4d8e6433e8a8b6df25375fb780b0f75ff4e6 (patch) | |
| tree | a2fa377940f50d9361a0adba2c74a71f55c23a25 /src/pkg/runtime/sys_linux_amd64.s | |
| parent | 0de71619ce591d79297ae609362a8ac1cdb5fe46 (diff) | |
| download | go-295a4d8e6433e8a8b6df25375fb780b0f75ff4e6.tar.xz | |
runtime: ignore failure from madvise
When we release memory to the OS, if the OS doesn't want us
to release it (for example, because the program executed
mlockall(MCL_FUTURE)), madvise will fail. Ignore the failure
instead of crashing.
Fixes #3435.
R=ken2
CC=golang-dev
https://golang.org/cl/6998052
Diffstat (limited to 'src/pkg/runtime/sys_linux_amd64.s')
| -rw-r--r-- | src/pkg/runtime/sys_linux_amd64.s | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/pkg/runtime/sys_linux_amd64.s b/src/pkg/runtime/sys_linux_amd64.s index 3f7a207f37..e459437582 100644 --- a/src/pkg/runtime/sys_linux_amd64.s +++ b/src/pkg/runtime/sys_linux_amd64.s @@ -250,9 +250,7 @@ TEXT runtime·madvise(SB),7,$0 MOVQ 24(SP), DX MOVQ $28, AX // madvise SYSCALL - CMPQ AX, $0xfffffffffffff001 - JLS 2(PC) - MOVL $0xf1, 0xf1 // crash + // ignore failure - maybe pages are locked RET // int64 futex(int32 *uaddr, int32 op, int32 val, |