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[bpf-next] selftests: xsk: Disable IPv6 on VETH1

Message ID 20230405082905.6303-1-kal.conley@dectris.com (mailing list archive)
State Accepted
Commit f2b50f17268390567bc0e95642170d88f336c8f4
Delegated to: BPF
Headers show
Series [bpf-next] selftests: xsk: Disable IPv6 on VETH1 | expand

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bpf/vmtest-bpf-next-PR success PR summary
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netdev/tree_selection success Clearly marked for bpf-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 20 this patch: 20
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netdev/check_selftest success net selftest script(s) already in Makefile
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Commit Message

Kal Cutter Conley April 5, 2023, 8:29 a.m. UTC 
This change fixes flakiness in the BIDIRECTIONAL test:

    # [is_pkt_valid] expected length [60], got length [90]
    not ok 1 FAIL: SKB BUSY-POLL BIDIRECTIONAL

When IPv6 is enabled, the interface will periodically send MLDv1 and
MLDv2 packets. These packets can cause the BIDIRECTIONAL test to fail
since it uses VETH0 for RX.

For other tests, this was not a problem since they only receive on VETH1
and IPv6 was already disabled on VETH0.

Fixes: a89052572ebb ("selftests/bpf: Xsk selftests framework")
Signed-off-by: Kal Conley <kal.conley@dectris.com>
---
 tools/testing/selftests/bpf/test_xsk.sh | 1 +
 1 file changed, 1 insertion(+)

Comments

patchwork-bot+netdevbpf@kernel.org April 5, 2023, 7:50 p.m. UTC | #1 
Hello:

This patch was applied to bpf/bpf-next.git (master)
by Martin KaFai Lau <martin.lau@kernel.org>:

On Wed,  5 Apr 2023 10:29:04 +0200 you wrote:
> This change fixes flakiness in the BIDIRECTIONAL test:
> 
>     # [is_pkt_valid] expected length [60], got length [90]
>     not ok 1 FAIL: SKB BUSY-POLL BIDIRECTIONAL
> 
> When IPv6 is enabled, the interface will periodically send MLDv1 and
> MLDv2 packets. These packets can cause the BIDIRECTIONAL test to fail
> since it uses VETH0 for RX.
> 
> [...]

Here is the summary with links:
  - [bpf-next] selftests: xsk: Disable IPv6 on VETH1
    https://git.kernel.org/bpf/bpf-next/c/f2b50f172683

You are awesome, thank you!
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
index b077cf58f825..377fb157a57c 100755
--- a/tools/testing/selftests/bpf/test_xsk.sh
+++ b/tools/testing/selftests/bpf/test_xsk.sh
@@ -116,6 +116,7 @@  setup_vethPairs() {
 	ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4
 	if [ -f /proc/net/if_inet6 ]; then
 		echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6
+		echo 1 > /proc/sys/net/ipv6/conf/${VETH1}/disable_ipv6
 	fi
 	if [[ $verbose -eq 1 ]]; then
 	        echo "setting up ${VETH1}"