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authorRuss Cox <rsc@golang.org>2012-12-22 15:06:28 -0500
committerRuss Cox <rsc@golang.org>2012-12-22 15:06:28 -0500
commit295a4d8e6433e8a8b6df25375fb780b0f75ff4e6 (patch)
treea2fa377940f50d9361a0adba2c74a71f55c23a25 /src/pkg/runtime/sys_linux_arm.s
parent0de71619ce591d79297ae609362a8ac1cdb5fe46 (diff)
downloadgo-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_arm.s')
-rw-r--r--src/pkg/runtime/sys_linux_arm.s5
1 files changed, 1 insertions, 4 deletions
diff --git a/src/pkg/runtime/sys_linux_arm.s b/src/pkg/runtime/sys_linux_arm.s
index eda7b1f568..53eb7b19d8 100644
--- a/src/pkg/runtime/sys_linux_arm.s
+++ b/src/pkg/runtime/sys_linux_arm.s
@@ -133,10 +133,7 @@ TEXT runtime·madvise(SB),7,$0
MOVW 8(FP), R2
MOVW $SYS_madvise, R7
SWI $0
- MOVW $0xfffff001, R6
- CMP R6, R0
- MOVW.HI $0, R9 // crash on syscall failure
- MOVW.HI R9, (R9)
+ // ignore failure - maybe pages are locked
RET
TEXT runtime·setitimer(SB),7,$0