11 files changed, 11 insertions, 26 deletions
diff --git a/src/pkg/runtime/sys_darwin_386.s b/src/pkg/runtime/sys_darwin_386.s
index bdbe0737f2..8a938f9f4c 100644
--- a/src/pkg/runtime/sys_darwin_386.s
+++ b/src/pkg/runtime/sys_darwin_386.s
@@ -47,8 +47,7 @@ TEXT runtime·mmap(SB),7,$0
 TEXT runtime·madvise(SB),7,$0
 	MOVL	$75, AX
 	INT	$0x80
-	JAE	2(PC)
-	MOVL	$0xf1, 0xf1  // crash
+	// ignore failure - maybe pages are locked
 	RET
 
 TEXT runtime·munmap(SB),7,$0
diff --git a/src/pkg/runtime/sys_darwin_amd64.s b/src/pkg/runtime/sys_darwin_amd64.s
index c91501a912..4e43a76c3c 100644
--- a/src/pkg/runtime/sys_darwin_amd64.s
+++ b/src/pkg/runtime/sys_darwin_amd64.s
@@ -61,8 +61,7 @@ TEXT runtime·madvise(SB), 7, $0
 	MOVL	24(SP), DX		// arg 3 advice
 	MOVL	$(0x2000000+75), AX	// syscall entry madvise
 	SYSCALL
-	JCC	2(PC)
-	MOVL	$0xf1, 0xf1  // crash
+	// ignore failure - maybe pages are locked
 	RET
 
 // OS X comm page time offsets
diff --git a/src/pkg/runtime/sys_freebsd_386.s b/src/pkg/runtime/sys_freebsd_386.s
index a30c7ba01f..4a9d7b40fa 100644
--- a/src/pkg/runtime/sys_freebsd_386.s
+++ b/src/pkg/runtime/sys_freebsd_386.s
@@ -105,8 +105,7 @@ TEXT runtime·munmap(SB),7,$-4
 TEXT runtime·madvise(SB),7,$-4
 	MOVL	$75, AX	// madvise
 	INT	$0x80
-	JAE	2(PC)
-	MOVL	$0xf1, 0xf1  // crash
+	// ignore failure - maybe pages are locked
 	RET
 
 TEXT runtime·setitimer(SB), 7, $-4
diff --git a/src/pkg/runtime/sys_freebsd_amd64.s b/src/pkg/runtime/sys_freebsd_amd64.s
index 7b1359167b..e8c0899cf7 100644
--- a/src/pkg/runtime/sys_freebsd_amd64.s
+++ b/src/pkg/runtime/sys_freebsd_amd64.s
@@ -188,8 +188,7 @@ TEXT runtime·madvise(SB),7,$0
 	MOVQ	24(SP), DX
 	MOVQ	$75, AX	// madvise
 	SYSCALL
-	JCC	2(PC)
-	MOVL	$0xf1, 0xf1  // crash
+	// ignore failure - maybe pages are locked
 	RET
 	
 TEXT runtime·sigaltstack(SB),7,$-8
diff --git a/src/pkg/runtime/sys_freebsd_arm.s b/src/pkg/runtime/sys_freebsd_arm.s
index ec8134e4c5..0c30d44957 100644
--- a/src/pkg/runtime/sys_freebsd_arm.s
+++ b/src/pkg/runtime/sys_freebsd_arm.s
@@ -189,8 +189,7 @@ TEXT runtime·madvise(SB),7,$0
 	MOVW 4(FP), R1		// arg 2 len
 	MOVW 8(FP), R2		// arg 3 flags
 	SWI $75
-	MOVW.CS $0, R9 // crash on syscall failure
-	MOVW.CS R9, (R9)
+	// ignore failure - maybe pages are locked
 	RET
 	
 TEXT runtime·sigaltstack(SB),7,$-8
diff --git a/src/pkg/runtime/sys_linux_386.s b/src/pkg/runtime/sys_linux_386.s
index 60f76fa92f..f27fd47130 100644
--- a/src/pkg/runtime/sys_linux_386.s
+++ b/src/pkg/runtime/sys_linux_386.s
@@ -241,9 +241,7 @@ TEXT runtime·madvise(SB),7,$0
 	MOVL	8(SP), CX
 	MOVL	12(SP), DX
 	CALL	*runtime·_vdso(SB)
-	CMPL	AX, $0xfffff001
-	JLS	2(PC)
-	INT $3
+	// ignore failure - maybe pages are locked
 	RET
 
 // int32 futex(int32 *uaddr, int32 op, int32 val,
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,
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,$0
diff --git a/src/pkg/runtime/sys_netbsd_386.s b/src/pkg/runtime/sys_netbsd_386.s
index 1a4ff95b6d..3d3d312736 100644
--- a/src/pkg/runtime/sys_netbsd_386.s
+++ b/src/pkg/runtime/sys_netbsd_386.s
@@ -86,8 +86,7 @@ TEXT runtime·munmap(SB),7,$-4
 TEXT runtime·madvise(SB),7,$-4
 	MOVL	$75, AX			// sys_madvise
 	INT	$0x80
-	JAE	2(PC)
-	MOVL	$0xf1, 0xf1		// crash
+	// ignore failure - maybe pages are locked
 	RET
 
 TEXT runtime·setitimer(SB),7,$-4
diff --git a/src/pkg/runtime/sys_netbsd_amd64.s b/src/pkg/runtime/sys_netbsd_amd64.s
index fc5f28ca79..e73e83ded2 100644
--- a/src/pkg/runtime/sys_netbsd_amd64.s
+++ b/src/pkg/runtime/sys_netbsd_amd64.s
@@ -252,8 +252,7 @@ TEXT runtime·madvise(SB),7,$0
 	MOVQ	behav+16(FP), DX	// arg 3 - behav
 	MOVQ	$75, AX			// sys_madvise
 	SYSCALL
-	JCC	2(PC)
-	MOVL	$0xf1, 0xf1		// crash
+	// ignore failure - maybe pages are locked
 	RET
 
 TEXT runtime·sigaltstack(SB),7,$-8
diff --git a/src/pkg/runtime/sys_openbsd_amd64.s b/src/pkg/runtime/sys_openbsd_amd64.s
index 49eb7a9815..8a736507ff 100644
--- a/src/pkg/runtime/sys_openbsd_amd64.s
+++ b/src/pkg/runtime/sys_openbsd_amd64.s
@@ -240,8 +240,7 @@ TEXT runtime·madvise(SB),7,$0
 	MOVQ	behav+16(FP), DX	// arg 3 - behav
 	MOVQ	$75, AX			// sys_madvise
 	SYSCALL
-	JCC	2(PC)
-	MOVL	$0xf1, 0xf1		// crash
+	// ignore failure - maybe pages are locked
 	RET
 
 TEXT runtime·sigaltstack(SB),7,$-8