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Message-ID: <6c735168f53548a39bd21e6e9857f512@HKXPR3004MB0088.064d.mgd.msft.net>
Date: Tue, 1 Mar 2016 08:11:54 +0000
From: Dexuan Cui <decui@...rosoft.com>
To: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC: Haiyang Zhang <haiyangz@...rosoft.com>
Subject: linux-next: next-20160301: unregister_netdevice: waiting for lo to
become free. Usage count = 2
Hi, I got this line every 10 seconds with today's linux-next in a Hyper-V guest, even
when I didn't configure any NIC for the guest:
[ 72.604249] unregister_netdevice: waiting for lo to become free. Usage count = 2
[ 82.708170] unregister_netdevice: waiting for lo to become free. Usage count = 2
[ 92.788079] unregister_netdevice: waiting for lo to become free. Usage count = 2
[ 102.808132] unregister_netdevice: waiting for lo to become free. Usage count = 2
[ 112.928166] unregister_netdevice: waiting for lo to become free. Usage count = 2
[ 122.952069] unregister_netdevice: waiting for lo to become free. Usage count = 2
I don't think this is related to the underlying host, since it's related to "lo".
This should be a recent regression, as I remember the January linux-next didn't have
this issue.
Any idea?
The gzip-ed kernel config is attached FYI.
Thanks,
-- Dexuan
Download attachment "kernel.config.gz" of type "application/x-gzip" (46145 bytes)
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