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Date: Tue, 16 Sep 2014 21:56:56 +0530 From: Mugunthan V N <mugunthanvnm@...com> To: netdev <netdev@...r.kernel.org> CC: David Miller <davem@...emloft.net> Subject: phy link status not stable Hi While doing ifdown/ifup test, phy link up status is very much delayed and also link up/down comes alternatively without physical link changes which leads to ifup failure. in v3.12 internal tree there is no failure. Pasting the logs below. root@...37x-evm:~# ifup eth0 [ 652.633204] net eth0: initializing cpsw version 1.15 (0) [ 652.717428] net eth0: phy found : id is : 0x221622 udhcpc (v1.20.2) started Sending discover... Sending discover... [ 658.717859] cpsw 4a100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx Sending discover... [ 660.717894] cpsw 4a100000.ethernet eth0: Link is Down [ 661.717937] cpsw 4a100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx No lease, failing root@...37x-evm:~# udhcpc udhcpc (v1.20.2) started Sending discover... Sending select for 172.24.190.6... Lease of 172.24.190.6 obtained, lease time 3600 /etc/udhcpc.d/50default: Adding DNS 192.0.2.2 /etc/udhcpc.d/50default: Adding DNS 192.0.2.3 root@...37x-evm:~# Is this a known issue or any pointers where to look for clues? Setup: TI-AM437x EVM Phy: Micrel KSZ9031 Gigabit PHY Thanks, Mugunthan V N -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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