Commit 188107b2 authored by Jakub Kicinski's avatar Jakub Kicinski
Browse files

selftests: net: bump GRO timeout for gro/setup_veth 



Commit 51bef03e ("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: default avatarKevin Krakauer <krakauer@google.com>
Link: https://patch.msgid.link/20250310110821.385621-1-kuba@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent adbf627f

tools/testing/selftests/net/setup_veth.sh

+1 −1
Original line number Diff line number Diff line
@@ -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