Hi all,
This patch introduced the following massive warnings printouts on a
Intel x86 Alderlake platform with STMMAC MAC and Marvell 88E2110 PHY.
[ 149.674232] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 159.930310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 170.186205] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 180.434311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 190.682309] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 200.690176] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 210.938310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 221.186311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 231.442311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 241.690186] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 251.698288] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 261.946311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 272.194181] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 282.442311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 292.690310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 302.938313] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 313.186255] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 323.442329] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 333.698309] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 343.946310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 354.202166] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 364.450190] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 374.706314] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
Is this an expected behavior?
Thanks,
VK
On Wed, Mar 31, 2021 at 2:05 AM Wong, Vee Khee [off-list ref] wrote:
Hi all,
This patch introduced the following massive warnings printouts on a
Intel x86 Alderlake platform with STMMAC MAC and Marvell 88E2110 PHY.
[ 149.674232] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 159.930310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 170.186205] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 180.434311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 190.682309] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 200.690176] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 210.938310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 221.186311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 231.442311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 241.690186] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 251.698288] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 261.946311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 272.194181] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 282.442311] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 292.690310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 302.938313] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 313.186255] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 323.442329] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 333.698309] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 343.946310] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 354.202166] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 364.450190] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
[ 374.706314] unregister_netdevice: waiting for sit0 to become free. Usage count = 2
Is this an expected behavior?
Nope, I already have a fix, but it depends on a pending patch.
https://patchwork.kernel.org/project/netdevbpf/patch/20210330064551.545964-1-eric.dumazet@gmail.com/
(I need the patch being merged to add a corresponding Fixes: tag)
You can try the attached patch :