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Type:
Bug
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Resolution: Fixed
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Priority:
High
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Linux Core SDK
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LCPD-43885
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11.00
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11.00
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am62lxx_evm-fs
Booting nfsroot with kernel 6.12 tag 11.00.12 fails if the CPUs are limited to 1 (using maxcpus=1). I used this for easier TF-A/Linux testing. It detects the link but fails afterwards with timeouts.
To reproduce this issue, use this commandline for the kernel:
console=ttyS0,115200n8 earlycon=ns16550a,mmio32,0x02800000 root=/dev/nfs nfsroot=/mnt/ext/nfsroot,tcp,v3 ip=dhcp maxcpus=1 This leads to this or similar kernel messages: [ 4.687245] am65-cpsw-nuss 8000000.ethernet eth0: PHY [8000f00.mdio:00] driver [TI DP83867] (irq=POLL) [ 4.703234] am65-cpsw-nuss 8000000.ethernet eth0: configuring for phy/rgmii-rxid link mode [ 6.951244] am65-cpsw-nuss 8000000.ethernet eth1: PHY [8000f00.mdio:01] driver [TI DP83867] (irq=POLL) [ 6.967232] am65-cpsw-nuss 8000000.ethernet eth1: configuring for phy/rgmii-rxid link mode [ 9.059254] am65-cpsw-nuss 8000000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off [ 9.099226] Sending DHCP requests .. [ 14.291237] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 5192 ms [ 14.304723] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:5204 dql_avail:-590 free_desc:515 [ 17.239221] . [ 19.159233] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 10060 ms [ 19.170805] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:10068 dql_avail:-590 free_desc:515 [ 24.275232] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 15176 ms [ 24.285232] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:15184 dql_avail:-590 free_desc:515 [ 26.263219] . [ 29.139225] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 20040 ms [ 29.150790] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:20048 dql_avail:-590 free_desc:515 [ 34.263232] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 25164 ms [ 34.273235] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:25172 dql_avail:-590 free_desc:515 [ 39.127223] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 30028 ms [ 39.137222] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:30036 dql_avail:-590 free_desc:515 [ 42.039216] . [ 44.247224] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 35148 ms [ 44.258789] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:35156 dql_avail:-590 free_desc:515 [ 49.107222] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 40008 ms [ 49.117220] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:40016 dql_avail:-590 free_desc:515 [ 54.227226] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 45128 ms [ 54.237226] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:45136 dql_avail:-590 free_desc:515 [ 59.095220] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 49996 ms [ 59.105218] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:50004 dql_avail:-590 free_desc:515 [ 64.211226] am65-cpsw-nuss 8000000.ethernet eth0: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 55112 ms [ 64.221225] am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:55120 dql_avail:-590 free_desc:515
