* [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1
@ 2017-10-27 23:12 Tushar Dave
2017-10-28 1:59 ` Alexei Starovoitov
2017-10-29 3:18 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: Tushar Dave @ 2017-10-27 23:12 UTC (permalink / raw)
To: ast, daniel, netdev
Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
e.g.
[root@lab bpf]#./xdp1 -N $(</sys/class/net/eth2/ifindex)
failed to create a map: 1 Operation not permitted
Fix it.
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
---
samples/bpf/xdp1_user.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c
index 2431c03..fdaefe9 100644
--- a/samples/bpf/xdp1_user.c
+++ b/samples/bpf/xdp1_user.c
@@ -14,6 +14,7 @@
#include <string.h>
#include <unistd.h>
#include <libgen.h>
+#include <sys/resource.h>
#include "bpf_load.h"
#include "bpf_util.h"
@@ -69,6 +70,7 @@ static void usage(const char *prog)
int main(int argc, char **argv)
{
+ struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
const char *optstr = "SN";
char filename[256];
int opt;
@@ -91,6 +93,12 @@ int main(int argc, char **argv)
usage(basename(argv[0]));
return 1;
}
+
+ if (setrlimit(RLIMIT_MEMLOCK, &r)) {
+ perror("setrlimit(RLIMIT_MEMLOCK)");
+ return 1;
+ }
+
ifindex = strtoul(argv[optind], NULL, 0);
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1
2017-10-27 23:12 [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 Tushar Dave
@ 2017-10-28 1:59 ` Alexei Starovoitov
2017-10-29 3:18 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Alexei Starovoitov @ 2017-10-28 1:59 UTC (permalink / raw)
To: Tushar Dave; +Cc: ast, daniel, netdev
On Fri, Oct 27, 2017 at 04:12:30PM -0700, Tushar Dave wrote:
> Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
> e.g.
> [root@lab bpf]#./xdp1 -N $(</sys/class/net/eth2/ifindex)
> failed to create a map: 1 Operation not permitted
>
> Fix it.
>
> Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1
2017-10-27 23:12 [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 Tushar Dave
2017-10-28 1:59 ` Alexei Starovoitov
@ 2017-10-29 3:18 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2017-10-29 3:18 UTC (permalink / raw)
To: tushar.n.dave; +Cc: ast, daniel, netdev
From: Tushar Dave <tushar.n.dave@oracle.com>
Date: Fri, 27 Oct 2017 16:12:30 -0700
> Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
> e.g.
> [root@lab bpf]#./xdp1 -N $(</sys/class/net/eth2/ifindex)
> failed to create a map: 1 Operation not permitted
>
> Fix it.
>
> Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Applied.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-10-27 23:12 [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 Tushar Dave
2017-10-28 1:59 ` Alexei Starovoitov
2017-10-29 3:18 ` David Miller
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