I am testing 4.8 on my sparcs and got this on Sun V210 (sparc64). This is reproducible. 4.8.0-rc3-00013 did not have this problem, will bisect when I get some time. [ 74.123859] tg3.c:v3.137 (May 11, 2014) [ 74.123880] PCI: Enabling device: (0000:00:02.0), cmd 2 [ 74.315794] tg3 0000:00:02.0 (unnamed net_device) (uninitialized): Cannot get nvram lock, tg3_nvram_init failed [ 74.656152] tg3 0000:00:02.0 eth0: Tigon3 [partno(none) rev 2003] (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:85 [ 74.656160] tg3 0000:00:02.0 eth0: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) [ 74.656167] tg3 0000:00:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] [ 74.656172] tg3 0000:00:02.0 eth0: dma_rwctrl[763f0000] dma_mask[32-bit] [ 74.656322] PCI: Enabling device: (0000:00:02.1), cmd 2 [ 74.845325] tg3 0000:00:02.1 (unnamed net_device) (uninitialized): Cannot get nvram lock, tg3_nvram_init failed [ 75.184539] tg3 0000:00:02.1 eth1: Tigon3 [partno(none) rev 2003] (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:86 [ 75.184546] tg3 0000:00:02.1 eth1: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) [ 75.184551] tg3 0000:00:02.1 eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] [ 75.184557] tg3 0000:00:02.1 eth1: dma_rwctrl[763f0000] dma_mask[32-bit] [ 75.184708] PCI: Enabling device: (0003:00:02.0), cmd 2 [ 75.375322] tg3 0003:00:02.0 (unnamed net_device) (uninitialized): Cannot get nvram lock, tg3_nvram_init failed [ 75.714681] tg3 0003:00:02.0 eth2: Tigon3 [partno(none) rev 2003] (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:87 [ 75.714688] tg3 0003:00:02.0 eth2: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) [ 75.714694] tg3 0003:00:02.0 eth2: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] [ 75.714699] tg3 0003:00:02.0 eth2: dma_rwctrl[763f0000] dma_mask[32-bit] [ 75.714819] PCI: Enabling device: (0003:00:02.1), cmd 2 [ 75.905278] tg3 0003:00:02.1 (unnamed net_device) (uninitialized): Cannot get nvram lock, tg3_nvram_init failed [ 76.244470] tg3 0003:00:02.1 eth3: Tigon3 [partno(none) rev 2003] (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:88 [ 76.244477] tg3 0003:00:02.1 eth3: attached PHY is 5704 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) [ 76.244482] tg3 0003:00:02.1 eth3: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] [ 76.244488] tg3 0003:00:02.1 eth3: dma_rwctrl[763f0000] dma_mask[32-bit] [ 83.643317] tg3 0000:00:02.0 eth0: No firmware running [...] [ 83.716570] BUG: spinlock lockup suspected on CPU#0, dhclient/1014 [ 83.797819] lock: 0xfff000123c8e4a08, .magic: dead4ead, .owner: ip/1001, .owner_cpu: 1 [ 83.903130] CPU: 0 PID: 1014 Comm: dhclient Not tainted 4.8.0 #4 [ 83.982129] Call Trace: [ 84.014160] [00000000004b7220] spin_dump+0x60/0xa0 [ 84.078203] [00000000004b73a0] do_raw_spin_lock+0xa0/0x120 [ 84.106344] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 84.107193] ip (1001) used greatest stack depth: 2168 bytes left [ 84.306955] [000000000092c0d0] _raw_spin_lock_bh+0x30/0x40 [ 84.380188] [00000000100822cc] tg3_get_stats64+0xc/0x80 [tg3] [ 84.456885] [00000000007fac8c] dev_get_stats+0x2c/0xc0 [ 84.525506] [000000000081a4e8] dev_seq_printf_stats+0x8/0xe0 [ 84.600986] [000000000081a5e4] dev_seq_show+0x24/0x40 [ 84.668467] [00000000005cb6c4] seq_read+0x2c4/0x440 [ 84.733656] [000000000060b97c] proc_reg_read+0x3c/0x80 [ 84.802282] [00000000005a219c] __vfs_read+0x1c/0x140 [ 84.868613] [00000000005a2310] vfs_read+0x50/0x100 [ 84.932662] [00000000005a265c] SyS_read+0x3c/0xa0 [ 84.995573] [00000000004061d4] linux_sparc_syscall32+0x34/0x60 [ 85.073748] * CPU[ 0]: TSTATE[00000044f0001a22] TPC[00000000f79a16b0] TNPC[00000000f79a16b4] TASK[dhclient:1014] [ 85.208732] TPC[f79a16b0] O7[f79405c8] I7[0] RPC[0] [ 85.287633] CPU[ 1]: TSTATE[0000004480001605] TPC[00000000004b26f0] TNPC[00000000004d0b0c] TASK[swapper/1:0] [ 85.420338] TPC[trace_hardirqs_off+0x10/0x20] O7[rcu_idle_enter+0x64/0xa0] I7[cpu_startup_entry+0x1b0/0x240] RPC[rest_init+0x178/0x1a0] [ 85.664600] tg3 0000:00:02.0 eth0: Link is up at 100 Mbps, full duplex [ 85.750515] tg3 0000:00:02.0 eth0: Flow control is off for TX and off for RX [ 85.843994] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready -- Meelis Roos (mroos@xxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
