From: Jakub Kicinski Date: Mon, 10 Mar 2025 11:08:21 +0000 (+0100) Subject: selftests: net: bump GRO timeout for gro/setup_veth X-Git-Tag: v6.15-rc1~160^2~117 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=188107b2c403b593439ad5b74baed5fefa638df4;p=thirdparty%2Fkernel%2Flinux.git selftests: net: bump GRO timeout for gro/setup_veth Commit 51bef03e1a71 ("selftests/net: deflake GRO tests") recently switched to NAPI suspension, and lowered the timeout from 1ms to 100us. This started causing flakes in netdev-run CI. Let's bump it to 200us. In a quick test of a debug kernel I see failures with 100us, with 200us in 5 runs I see 2 completely clean runs and 3 with a single retry (GRO test will retry up to 5 times). Reviewed-by: Kevin Krakauer Link: https://patch.msgid.link/20250310110821.385621-1-kuba@kernel.org Signed-off-by: Jakub Kicinski --- diff --git a/tools/testing/selftests/net/setup_veth.sh b/tools/testing/selftests/net/setup_veth.sh index eb3182066d126..152bf4c657478 100644 --- a/tools/testing/selftests/net/setup_veth.sh +++ b/tools/testing/selftests/net/setup_veth.sh @@ -11,7 +11,7 @@ setup_veth_ns() { local -r ns_mac="$4" [[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}" - echo 100000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" + echo 200000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" echo 1 > "/sys/class/net/${ns_dev}/napi_defer_hard_irqs" ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535 ip -netns "${ns_name}" link set dev "${ns_dev}" up