{"action":"created","issue":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/1045","repository_url":"https://api.github.com/repos/raspberrypi/linux","labels_url":"https://api.github.com/repos/raspberrypi/linux/issues/1045/labels{/name}","comments_url":"https://api.github.com/repos/raspberrypi/linux/issues/1045/comments","events_url":"https://api.github.com/repos/raspberrypi/linux/issues/1045/events","html_url":"https://github.com/raspberrypi/linux/issues/1045","id":92856662,"number":1045,"title":"Kernel Panic: DM9601 Fast Ethernet Adapter","user":{"login":"strongly-typed","id":1626990,"avatar_url":"https://avatars.githubusercontent.com/u/1626990?v=3","gravatar_id":"","url":"https://api.github.com/users/strongly-typed","html_url":"https://github.com/strongly-typed","followers_url":"https://api.github.com/users/strongly-typed/followers","following_url":"https://api.github.com/users/strongly-typed/following{/other_user}","gists_url":"https://api.github.com/users/strongly-typed/gists{/gist_id}","starred_url":"https://api.github.com/users/strongly-typed/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/strongly-typed/subscriptions","organizations_url":"https://api.github.com/users/strongly-typed/orgs","repos_url":"https://api.github.com/users/strongly-typed/repos","events_url":"https://api.github.com/users/strongly-typed/events{/privacy}","received_events_url":"https://api.github.com/users/strongly-typed/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":28,"created_at":"2015-07-03T11:33:12Z","updated_at":"2016-02-13T18:58:22Z","closed_at":null,"body":"Hello, \r\n\r\nI'm experiencing kernel panics with a Noname USB to Ethernet Adapter. It is marked \"USB2.0 to Fast Ethernet Adapter Model No:KY-RD9700\". It uses a probably faked DM9601 chipset. Modules loaded are `sr9700` and `dm9601`.\r\n\r\n\t3% [2 Release 11[   63.202645] skbuff: skb_over_panic: text:803b8208 len:1536 put:1536 head:bb638200 data:bb638242 tail:0xbb638842 end:0xbb638840 dev:eth1\r\n\t[   63.216228] ------------[ cut here ]------------\r\n\t[   63.220838] kernel BUG at net/core/skbuff.c:102!\r\n\t[   63.225449] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM\r\n\t18 B/58.5 kB 2%]\r\n\tEntering kdb (current=0x8080c6e8, pid 0) on processor 0 Oops: (null)\r\n\tdue to oops @ 0x80547544\r\n\tCPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.7-v7+ #801\r\n\tHardware name: BCM2709\r\n\ttask: 8080c6e8 ti: 807ea000 task.ti: 807ea000\r\n\tPC is at skb_panic+0x64/0x70\r\n\tLR is at console_unlock+0x2f8/0x550\r\n\tpc : [<80547544>]    lr : [<80066de8>]    psr: 20000193\r\n\tsp : 807ebd70  ip : 807ebc70  fp : 807ebda4\r\n\tr10: 00000000  r9 : 00000101  r8 : 00000000\r\n\tr7 : 806c9e6c  r6 : bb638200  r5 : 00000600  r4 : bb638242\r\n\tr3 : 807ea000  r2 : 00000101  r1 : 60000193  r0 : 0000007b\r\n\tFlags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel\r\n\tControl: 10c5387d  Table: 3c2e806a  DAC: 00000015\r\n\tCPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.7-v7+ #801\r\n\tHardware name: BCM2709\r\n\r\nlsusb output is:\r\n\r\n     Bus 001 Device 004: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) DM9601 Fast Ethernet Adapter\r\n\r\nThe adapter works with a Ubuntu x86-64 with kernel version 3.13.0-53-generic.\r\n\r\nConnected to a RPi Model B and RPi 2 Model B I get kernel panics as soon as there is some significant traffic. Ping works ok, but apt-get for example oops the kernel. This applies to the latest kernel (4.0.7-v7+) and an older version (3.18.16-v7+)\r\n\r\nI am using a serial console to login into my RPis. See the full log attached\r\n\r\n\tUncompressing Linux... done, booting the kernel.\r\n\t[    0.000000] Booting Linux on physical CPU 0xf00\r\n\t[    0.000000] Initializing cgroup subsys cpuset\r\n\t[    0.000000] Initializing cgroup subsys cpu\r\n\t[    0.000000] Initializing cgroup subsys cpuacct\r\n\t[    0.000000] Linux version 4.0.7-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #801 SMP PREEMPT Tue Jun 30 18:38:23 BST 2015\r\n\t[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d\r\n\t[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache\r\n\t[    0.000000] Machine model: Raspberry Pi 2 Model B Rev 1.1\r\n\t[    0.000000] cma: Reserved 8 MiB at 0x3d800000\r\n\t[    0.000000] Memory policy: Data cache writealloc\r\n\t[    0.000000] [bcm2709_smp_init_cpus] enter (8660->f3003010)\r\n\t[    0.000000] [bcm2709_smp_init_cpus] ncores=4\r\n\t[    0.000000] PERCPU: Embedded 11 pages/cpu @bcf01000 s16128 r8192 d20736 u45056\r\n\t[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 251720\r\n\t[    0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2709.boardrev=0xa01041 bcm2709.serial=0xfe71a4bc smsc95xx.macaddr=B8:27:EB:71:A4:BC bcm2708_fb.fbswap=1 bcm2709.disk_led_gpio=47 bcm2709.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x3ea00000 vc_mem.mem_size=0x3f000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait\r\n\t[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)\r\n\t[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)\r\n\t[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)\r\n\t[    0.000000] Memory: 988384K/1015808K available (5885K kernel code, 378K rwdata, 1784K rodata, 400K init, 757K bss, 19232K reserved, 8192K cma-reserved)\r\n\t[    0.000000] Virtual kernel memory layout:\r\n\t[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)\r\n\t[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)\r\n\t[    0.000000]     vmalloc : 0xbe800000 - 0xff000000   (1032 MB)\r\n\t[    0.000000]     lowmem  : 0x80000000 - 0xbe000000   ( 992 MB)\r\n\t[    0.000000]     modules : 0x7f000000 - 0x80000000   (  16 MB)\r\n\t[    0.000000]       .text : 0x80008000 - 0x8078575c   (7670 kB)\r\n\t[    0.000000]       .init : 0x80786000 - 0x807ea000   ( 400 kB)\r\n\t[    0.000000]       .data : 0x807ea000 - 0x80848a64   ( 379 kB)\r\n\t[    0.000000]        .bss : 0x80848a64 - 0x809061cc   ( 758 kB)\r\n\t[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1\r\n\t[    0.000000] Preemptible hierarchical RCU implementation.\r\n\t[    0.000000] \tAdditional per-CPU info printed with stalls.\r\n\t[    0.000000] NR_IRQS:608\r\n\t[    0.000000] Architected cp15 timer(s) running at 19.20MHz (virt).\r\n\t[    0.000014] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 3579139424256ns\r\n\t[    0.000036] Switching to timer-based delay loop, resolution 52ns\r\n\t[    0.000319] Console: colour dummy device 80x30\r\n\t[    0.000362] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)\r\n\t[    0.000390] pid_max: default: 32768 minimum: 301\r\n\t[    0.000721] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)\r\n\t[    0.000742] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)\r\n\t[    0.002020] Initializing cgroup subsys blkio\r\n\t[    0.002061] Initializing cgroup subsys memory\r\n\t[    0.002094] Initializing cgroup subsys devices\r\n\t[    0.002121] Initializing cgroup subsys freezer\r\n\t[    0.002160] Initializing cgroup subsys net_cls\r\n\t[    0.002244] CPU: Testing write buffer coherency: ok\r\n\t[    0.002331] ftrace: allocating 20007 entries in 59 pages\r\n\t[    0.051131] CPU0: update cpu_capacity 1024\r\n\t[    0.051169] CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00\r\n\t[    0.051186] [bcm2709_smp_prepare_cpus] enter\r\n\t[    0.051317] Setting up static identity map for 0x54e9f0 - 0x54ea24\r\n\t[    0.111022] [bcm2709_boot_secondary] cpu:1 started (0) 17\r\n\t[    0.111332] [bcm2709_secondary_init] enter cpu:1\r\n\t[    0.111385] CPU1: update cpu_capacity 1024\r\n\t[    0.111394] CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01\r\n\t[    0.131013] [bcm2709_boot_secondary] cpu:2 started (0) 17\r\n\t[    0.131274] [bcm2709_secondary_init] enter cpu:2\r\n\t[    0.131304] CPU2: update cpu_capacity 1024\r\n\t[    0.131312] CPU2: thread -1, cpu 2, socket 15, mpidr 80000f02\r\n\t[    0.151053] [bcm2709_boot_secondary] cpu:3 started (0) 18\r\n\t[    0.151293] [bcm2709_secondary_init] enter cpu:3\r\n\t[    0.151320] CPU3: update cpu_capacity 1024\r\n\t[    0.151328] CPU3: thread -1, cpu 3, socket 15, mpidr 80000f03\r\n\t[    0.151421] Brought up 4 CPUs\r\n\t[    0.151452] SMP: Total of 4 processors activated (153.60 BogoMIPS).\r\n\t[    0.151463] CPU: All CPU(s) started in SVC mode.\r\n\t[    0.152463] devtmpfs: initialized\r\n\t[    0.172084] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5\r\n\t[    0.173290] pinctrl core: initialized pinctrl subsystem\r\n\t[    0.177975] NET: Registered protocol family 16\r\n\t[    0.183699] DMA: preallocated 4096 KiB pool for atomic coherent allocations\r\n\t[    0.184855] bcm2709.uart_clock = 3000000\r\n\t[    0.189217] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.\r\n\t[    0.189235] hw-breakpoint: maximum watchpoint size is 8 bytes.\r\n\t[    0.189373] Serial: AMBA PL011 UART driver\r\n\t[    0.189565] 3f201000.uart: ttyAMA0 at MMIO 0x3f201000 (irq = 83, base_baud = 0) is a PL011 rev2\r\n\t[    0.665364] console [ttyAMA0] enabled\r\n\t[    0.669793] bcm2708_vcio 3f00b880.mailbox: mailbox at f300b880\r\n\t[    0.743319] bcm2708-dmaengine 3f007000.dma: DMA legacy API manager at f3007000, dmachans=0x7f35\r\n\t[    0.752606] bcm2708-dmaengine 3f007000.dma: Load BCM2835 DMA engine driver\r\n\t[    0.759477] bcm2708-dmaengine 3f007000.dma: dma_debug:0\r\n\t[    0.764822] bcm_power: Broadcom power driver\r\n\t[    0.769090] bcm_power_open() -> 0\r\n\t[    0.772399] bcm_power_request(0, 8)\r\n\t[    0.801558] bcm_mailbox_read -> 00000080, 0\r\n\t[    0.805762] bcm_power_request -> 0\r\n\t[    0.809806] SCSI subsystem initialized\r\n\t[    0.813789] usbcore: registered new interface driver usbfs\r\n\t[    0.819402] usbcore: registered new interface driver hub\r\n\t[    0.824843] usbcore: registered new device driver usb\r\n\t[    0.831818] Switched to clocksource arch_sys_counter\r\n\t[    0.866706] FS-Cache: Loaded\r\n\t[    0.869947] CacheFiles: Loaded\r\n\t[    0.884552] NET: Registered protocol family 2\r\n\t[    0.890193] TCP established hash table entries: 8192 (order: 3, 32768 bytes)\r\n\t[    0.897419] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)\r\n\t[    0.904098] TCP: Hash tables configured (established 8192 bind 8192)\r\n\t[    0.910547] TCP: reno registered\r\n\t[    0.913813] UDP hash table entries: 512 (order: 2, 16384 bytes)\r\n\t[    0.919775] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)\r\n\t[    0.926604] NET: Registered protocol family 1\r\n\t[    0.931392] RPC: Registered named UNIX socket transport module.\r\n\t[    0.937385] RPC: Registered udp transport module.\r\n\t[    0.942121] RPC: Registered tcp transport module.\r\n\t[    0.946819] RPC: Registered tcp NFSv4.1 backchannel transport module.\r\n\t[    0.954332] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available\r\n\t[    0.963856] futex hash table entries: 1024 (order: 4, 65536 bytes)\r\n\t[    0.985358] VFS: Disk quotas dquot_6.5.2\r\n\t[    0.989643] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)\r\n\t[    0.999355] FS-Cache: Netfs 'nfs' registered for caching\r\n\t[    1.005876] NFS: Registering the id_resolver key type\r\n\t[    1.011031] Key type id_resolver registered\r\n\t[    1.015236] Key type id_legacy registered\r\n\t[    1.022015] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)\r\n\t[    1.029588] io scheduler noop registered\r\n\t[    1.033547] io scheduler deadline registered\r\n\t[    1.038132] io scheduler cfq registered (default)\r\n\t[    1.045351] BCM2708FB: allocated DMA memory fdc00000\r\n\t[    1.050342] BCM2708FB: allocated DMA channel 0 @ f3007000\r\n\t[    1.061321] Console: switching to colour frame buffer device 82x26\r\n\t[    1.071136] Serial: 8250/16550 driver, 0 ports, IRQ sharing disabled\r\n\t[    1.077784] uart-pl011 3f201000.uart: no DMA platform data\r\n\t[    1.083577] KGDB: Registered I/O driver kgdboc\r\n\t[    1.122617] vc-cma: Videocore CMA driver\r\n\t[    1.126539] vc-cma: vc_cma_base      = 0x00000000\r\n\t[    1.131235] vc-cma: vc_cma_size      = 0x00000000 (0 MiB)\r\n\t[    1.136655] vc-cma: vc_cma_initial   = 0x00000000 (0 MiB)\r\n\t[    1.142299] vc-mem: phys_addr:0x00000000 mem_base=0x3ea00000 mem_size:0x3f000000(1008 MiB)\r\n\t[    1.166069] brd: module loaded\r\n\t[    1.178483] loop: module loaded\r\n\t[    1.182703] vchiq: vchiq_init_state: slot_zero = 0xbdc80000, is_master = 0\r\n\t[    1.190503] Loading iSCSI transport class v2.0-870.\r\n\t[    1.196388] usbcore: registered new interface driver smsc95xx\r\n\t[    1.202244] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)\r\n\t[    1.408303] Core Release: 2.80a\r\n\t[    1.411448] Setting default values for core params\r\n\t[    1.416303] Finished setting default values for core params\r\n\t[    1.622283] Using Buffer DMA mode\r\n\t[    1.625598] Periodic Transfer Interrupt Enhancement - disabled\r\n\t[    1.631419] Multiprocessor Interrupt Enhancement - disabled\r\n\t[    1.637003] OTG VER PARAM: 0, OTG VER FLAG: 0\r\n\t[    1.641358] Dedicated Tx FIFOs mode\r\n\t[    1.645204] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xbdc14000 dma = 0xfdc14000 len=9024\r\n\t[    1.655065] FIQ FSM acceleration enabled for :\r\n\t[    1.655065] Non-periodic Split Transactions\r\n\t[    1.655065] Periodic Split Transactions\r\n\t[    1.655065] High-Speed Isochronous Endpoints\r\n\t[    1.671847] WARN::hcd_init_fiq:412: FIQ on core 1 at 0x803f36f4\r\n\t[    1.677764] WARN::hcd_init_fiq:413: FIQ ASM at 0x803f3a50 length 36\r\n\t[    1.684027] WARN::hcd_init_fiq:438: MPHI regs_base at 0xbe89a000\r\n\t[    1.690081] dwc_otg 3f980000.usb: DWC OTG Controller\r\n\t[    1.695098] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1\r\n\t[    1.702464] dwc_otg 3f980000.usb: irq 32, io mem 0x00000000\r\n\t[    1.708069] Init: Port Power? op_state=1\r\n\t[    1.712009] Init: Power Port (0)\r\n\t[    1.715511] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002\r\n\t[    1.722322] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1\r\n\t[    1.729538] usb usb1: Product: DWC OTG Controller\r\n\t[    1.734260] usb usb1: Manufacturer: Linux 4.0.7-v7+ dwc_otg_hcd\r\n\t[    1.740175] usb usb1: SerialNumber: 3f980000.usb\r\n\t[    1.745640] hub 1-0:1.0: USB hub found\r\n\t[    1.749440] hub 1-0:1.0: 1 port detected\r\n\t[    1.754294] usbcore: registered new interface driver usb-storage\r\n\t[    1.760560] mousedev: PS/2 mouse device common for all mice\r\n\t[    1.767092] bcm2835-cpufreq: min=600000 max=900000\r\n\t[    1.772262] Driver 'mmcblk' needs updating - please use bus_type methods\r\n\t[    1.779023] sdhci: Secure Digital Host Controller Interface driver\r\n\t[    1.785258] sdhci: Copyright(c) Pierre Ossman\r\n\t[    1.790072] mmc-bcm2835 3f300000.mmc: mmc_debug:0 mmc_debug2:0\r\n\t[    1.795969] mmc-bcm2835 3f300000.mmc: DMA channels allocated\r\n\t[    1.842163] sdhci-pltfm: SDHCI platform and OF driver helper\r\n\t[    1.852125] ledtrig-cpu: registered to indicate activity on CPUs\r\n\t[    1.858323] hidraw: raw HID events driver (C) Jiri Kosina\r\n\t[    1.863995] usbcore: registered new interface driver usbhid\r\n\t[    1.869559] usbhid: USB HID core driver\r\n\t[    1.873733] TCP: cubic registered\r\n\t[    1.877055] Initializing XFRM netlink socket\r\n\t[    1.881351] NET: Registered protocol family 17\r\n\t[    1.885983] Key type dns_resolver registered\r\n\t[    1.890657] Registering SWP/SWPB emulation handler\r\n\t[    1.891235] mmc0: host does not support reading read-only switch, assuming write-enable\r\n\t[    1.894809] mmc0: new high speed SDHC card at address e624\r\n\t[    1.895496] mmcblk0: mmc0:e624 SU08G 7.40 GiB\r\n\t[    1.905120]  mmcblk0: p1 p2\r\n\t[    1.917165] registered taskstats version 1\r\n\t[    1.921570] vc-sm: Videocore shared memory driver\r\n\t[    1.926311] [vc_sm_connected_init]: start\r\n\t[    1.930624] vc_vchi_sm_init: failed to open VCHI service (-1)\r\n\t[    1.936260] [vc_sm_connected_init]: failed to initialize shared memory service\r\n\t[    1.943716] [vc_sm_connected_init]: end - returning -1\r\n\t[    1.952012] Indeed it is in host mode hprt0 = 00021501\r\n\t[    1.968575] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)\r\n\t[    1.976793] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.\r\n\t[    1.992109] devtmpfs: mounted\r\n\t[    1.995845] Freeing unused kernel memory: 400K (80786000 - 807ea000)\r\n\t[    2.131953] usb 1-1: new high-speed USB device number 2 using dwc_otg\r\n\t[    2.138573] Indeed it is in host mode hprt0 = 00001101\r\n\tMount failed for selinuxfs on /sys/fs/selinux:  No such file or directory\r\n\t[    2.342280] usb 1-1: New USB device found, idVendor=0424, idProduct=9514\r\n\t[    2.348995] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0\r\n\t[    2.357148] hub 1-1:1.0: USB hub found\r\n\t[    2.361067] hub 1-1:1.0: 5 ports detected\r\n\t[    2.381385] random: init urandom read with 47 bits of entropy available\r\n\t[    2.551575] init: plymouth-upstart-bridge main process (63) terminated with status 1\r\n\t[    2.559646] init: plymouth-upstart-bridge main process ended, respawning\r\n\t[    2.612007] init: plymouth-upstart-bridge main process (74) terminated with status 1\r\n\t[    2.619888] init: plymouth-upstart-bridge main process ended, respawning\r\n\t[    2.642252] usb 1-1.1: new high-speed USB device number 3 using dwc_otg\r\n\t[    2.762241] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00\r\n\t[    2.769166] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0\r\n\t[    2.780032] smsc95xx v1.0.4\r\n\t[    2.852683] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:71:a4:bc\r\n\t[    2.942181] usb 1-1.5: new full-speed USB device number 4 using dwc_otg\r\n\t[    3.064541] usb 1-1.5: New USB device found, idVendor=0fe6, idProduct=9700\r\n\t[    3.071435] usb 1-1.5: New USB device strings: Mfr=0, Product=2, SerialNumber=0\r\n\t[    3.078998] usb 1-1.5: Product: USB 2.0 10/100M Ethernet Adaptor\r\n\t * Starting Mount filesystems on boot                                    [ OK ]\r\n\t * Stopping Send an event to indicate plymouth is up                     [ OK ]\r\n\t * Starting Populate /dev filesystem                                     [ OK ]\r\n\t * Stopping Populate /dev filesystem                                     [ OK ]\r\n\t * Starting Populate and link to /run filesystem                         [ OK ]\r\n\t * Stopping Populate and link to /run filesystem                         [ OK ]\r\n\t * Stopping Track if upstart is running in a container                   [ OK ]\r\n\t * Starting set console keymap                                           [ OK ]\r\n\t * Starting Signal sysvinit that virtual filesystems are mounted         [ OK ]\r\n\t * Starting Signal sysvinit that virtual filesystems are mounted         [ OK ]\r\n\t * Starting Bridge udev events into upstart                              [ OK ]\r\n\t * Stopping set console keymap                                           [ OK ]\r\n\t * Starting Signal sysvinit that remote filesystems are mounted          [ OK ]\r\n\t * Starting device node and kernel event manager                         [ OK ]\r\n\t * Starting load modules from /etc/modules                               [ OK ]\r\n\t * Starting cold plug devices                                            [ OK ]\r\n\t * Starting log initial device creation                                  [ OK ]\r\n\t * Stopping load modules from /etc/modules                               [ OK ]\r\n\t * Starting set console font                                             [ OK ]\r\n\t * Stopping set console font                                             [ OK ]\r\n\t * Starting userspace bootsplash                                         [ OK ]\r\n\t * Stopping userspace bootsplash                                         [ OK ]\r\n\t * Starting Send an event to indicate plymouth is up                     [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Stopping cold plug devices                                            [ OK ]\r\n\t * Stopping log initial device creation                                  [ OK ]\r\n\t * Stopping Send an event to indicate plymouth is up                     [ OK ]\r\n\t * Starting Mount network filesystems                                    [ OK ]\r\n\t * Starting Signal sysvinit that the rootfs is mounted                   [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Stopping Mount network filesystems                                    [ OK ]\r\n\t * Starting configure network device                                     [ OK ]\r\n\t * Starting configure network device                                     [ OK ]\r\n\t * Starting Clean /tmp directory                                         [ OK ]\r\n\t * Stopping Clean /tmp directory                                         [ OK ]\r\n\t * Starting Signal sysvinit that local filesystems are mounted           [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Starting Failsafe Boot Delay                                          [ OK ]\r\n\t * Starting flush early job output to logs                               [ OK ]\r\n\t * Starting save udev log and update rules                               [ OK ]\r\n\t * Starting Mount network filesystems                                    [ OK ]\r\n\t * Stopping Mount filesystems on boot                                    [ OK ]\r\n\t * Stopping save udev log and update rules                               [ OK ]\r\n\t * Starting configure network device                                     [ OK ]\r\n\t * Stopping Failsafe Boot Delay                                          [ OK ]\r\n\t * Stopping flush early job output to logs                               [ OK ]\r\n\t * Starting System V initialisation compatibility                        [ OK ]\r\n\t * Starting configure virtual network devices                            [ OK ]\r\n\t * Stopping System V initialisation compatibility                        [ OK ]\r\n\t * Starting System V runlevel compatibility                              [ OK ]\r\n\t * Stopping Mount network filesystems                                    [ OK ]\r\n\t * Starting NTP server ntpd        * Starting OpenSSH server             [ OK ]\r\n\t                                                                         [ OK ]\r\n\t * Stopping System V runlevel compatibility                              [ OK ]\r\n\t\r\n\tUbuntu 14.04 LTS debug ttyAMA0\r\n\t\r\n\tdebug login: root\r\n\tPassword:\r\n\tLast login: Thu Jan  1 01:00:16 CET 1970 on ttyAMA0\r\n\tWelcome to Ubuntu 14.04 LTS (GNU/Linux 4.0.7-v7+ armv7l)\r\n\t\r\n\t * Documentation:  https://help.ubuntu.com/\r\n\troot@debug:~# lsusb\r\n\tBus 001 Device 004: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) DM9601 Fast Ethernet Adapter\r\n\tBus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter\r\n\tBus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.\r\n\tBus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub\r\n\troot@debug:~# uname -a\r\n\tLinux debug 4.0.7-v7+ #801 SMP PREEMPT Tue Jun 30 18:38:23 BST 2015 armv7l armv7l armv7l GNU/Linux\r\n\troot@debug:~# dhclient -v eth1\r\n\tInternet Systems Consortium DHCP Client 4.2.4\r\n\tCopyright 2004-2012 Internet Systems Consortium.\r\n\tAll rights reserved.\r\n\tFor info, please visit https://www.isc.org/software/dhcp/\r\n\t\r\n\tCorrupt lease file - possible data loss!\r\n\t[   42.716919] dm9601 1-1.5:1.0 eth1: kevent 4 may have been dropped\r\n\t[   42.723389] dm9601 1-1.5:1.0 eth1: kevent 4 may have been dropped\r\n\tListening on LPF/eth1/00:e0:4c:53:44:58\r\n\tSending on   LPF/eth1/00:e0:4c:53:44:58\r\n\tSending on   Socket/fallback\r\n\tDHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3 (xid=0x304ea24f)\r\n\tDHCPREQUEST of 134.xxx.xxx.xxx on eth1 to 255.255.255.255 port 67 (xid=0x304ea24f)\r\n\tDHCPOFFER of 134.xxx.xxx.xxx from 134.xxx.xxx.xxx\r\n\tDHCPACK of 134.xxx.xxx.xxx from 134.xxx.xxx.xxx\r\n\t * Stopping NTP server ntpd\r\n\t   ...done.\r\n\t * Starting NTP server ntpd\r\n\t   ...done.\r\n\tbound to 134.xxx.xxx.xx -- renewal in 41527 seconds.\r\n\troot@debug:~# apt-get update\r\n\tIgn http://ftp.tu-chemnitz.de trusty InRelease\r\n\tGet:1 http://ftp.tu-chemnitz.de trusty Release.gpg [933 B]\r\n\tGet:2 http://ftp.tu-chemnitz.de trusty Release [58.5 kB]\r\n\t3% [2 Release 11[   63.202645] skbuff: skb_over_panic: text:803b8208 len:1536 put:1536 head:bb638200 data:bb638242 tail:0xbb638842 end:0xbb638840 dev:eth1\r\n\t[   63.216228] ------------[ cut here ]------------\r\n\t[   63.220838] kernel BUG at net/core/skbuff.c:102!\r\n\t[   63.225449] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM\r\n\t18 B/58.5 kB 2%]\r\n\tEntering kdb (current=0x8080c6e8, pid 0) on processor 0 Oops: (null)\r\n\tdue to oops @ 0x80547544\r\n\tCPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.7-v7+ #801\r\n\tHardware name: BCM2709\r\n\ttask: 8080c6e8 ti: 807ea000 task.ti: 807ea000\r\n\tPC is at skb_panic+0x64/0x70\r\n\tLR is at console_unlock+0x2f8/0x550\r\n\tpc : [<80547544>]    lr : [<80066de8>]    psr: 20000193\r\n\tsp : 807ebd70  ip : 807ebc70  fp : 807ebda4\r\n\tr10: 00000000  r9 : 00000101  r8 : 00000000\r\n\tr7 : 806c9e6c  r6 : bb638200  r5 : 00000600  r4 : bb638242\r\n\tr3 : 807ea000  r2 : 00000101  r1 : 60000193  r0 : 0000007b\r\n\tFlags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel\r\n\tControl: 10c5387d  Table: 3c2e806a  DAC: 00000015\r\n\tCPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.7-v7+ #801\r\n\tHardware name: BCM2709\r\n\t[<800175bc>] (unwind_backtrace) from [<80012fd4>] (show_stack+0x20/0x24)\r\n\t[<80012fd4>] (show_stack) from [<80546adc>] (dump_stack+0x98/0xe0)\r\n\t[<80546adc>] (dump_stack) from [<80010008>] (show_regs+0x1c/0x20)\r\n\t[<80010008>] (show_regs) from [<800ad564>] (kdb_main_loop+0x3fc/0x77c)\r\n\t[<800ad564>] (kdb_main_loop) from [<800b0218>] (kdb_stub+0x22c/0x49c)\r\n\t[<800b0218>] (kdb_stub) from [<800a6038>] (kgdb_cpu_enter+0x434/0x78c)\r\n\t[<800a6038>] (kgdb_cpu_enter) from [<800a65d4>] (kgdb_handle_exception+0xf4/0x20c)\r\n\t[<800a65d4>] (kgdb_handle_exception) from [<80016b28>] (kgdb_notify+0x3c/0x90)\r\n\t[<80016b28>] (kgdb_notify) from [<800414f4>] (notifier_call_chain+0x54/0x94)\r\n\t[<800414f4>] (notifier_call_chain) from [<80041830>] (atomic_notifier_call_chain+0x44/0x58)\r\n\t[<80041830>] (atomic_notifier_call_chain) from [<80041884>] (notify_die+0x40/0x4c)\r\n\t[<80041884>] (notify_die) from [<800130d4>] (die+0xfc/0x410)\r\n\t[<800130d4>] (die) from [<80013414>] (arm_notify_die+0x2c/0x64)\r\n\t[<80013414>] (arm_notify_die) from [<80008384>] (do_undefinstr+0x144/0x1a0)\r\n\t[<80008384>] (do_undefinstr) from [<8054c790>] (__und_svc_finish+0x0/0x30)\r\n\tException stack(0x807ebce8 to 0x807ebd30)\r\n\tbce0:                   0000007b 60000193 00000101 807ea000 bb638242 00000600\r\n\tbd00: bb638200 806c9e6c 00000000 00000101 00000000 807ebda4 807ebc70 807ebd70\r\n\tbd20: 80066de8 80547544 20000193 ffffffff\r\n\t[<8054c790>] (__und_svc_finish) from [<80547544>] (skb_panic+0x64/0x70)\r\n\t[<80547544>] (skb_panic) from [<8045e89c>] (skb_put+0x5c/0x60)\r\n\t[<8045e89c>] (skb_put) from [<803b8208>] (rx_complete+0x34/0x1fc)\r\n\t[<803b8208>] (rx_complete) from [<803c0384>] (__usb_hcd_giveback_urb+0x80/0x154)\r\n\t[<803c0384>] (__usb_hcd_giveback_urb) from [<803c04a8>] (usb_hcd_giveback_urb+0x50/0x118)\r\n\t[<803c04a8>] (usb_hcd_giveback_urb) from [<803e6ad0>] (completion_tasklet_func+0x6c/0x98)\r\n\t[<803e6ad0>] (completion_tasklet_func) from [<803f4fac>] (tasklet_callback+0x20/0x24)\r\n\t[<803f4fac>] (tasklet_callback) from [<80029348>] (tasklet_hi_action+0x7c/0x114)\r\n\t[<80029348>] (tasklet_hi_action) from [<80028850>] (__do_softirq+0x124/0x3d4)\r\n\t[<80028850>] (__do_softirq) from [<80028eb8>] (irq_exit+0xcc/0x13c)\r\n\t[<80028eb8>] (irq_exit) from [<800685d8>] (__handle_domain_irq+0x8c/0xec)\r\n\t[<800685d8>] (__handle_domain_irq) from [<8000857c>] (asm_do_IRQ+0x2c/0x30)\r\n\t[<8000857c>] (asm_do_IRQ) from [<8054c5f4>] (__irq_svc+0x34/0x14c)\r\n\tException stack(0x807ebf28 to 0x807ebf70)\r\n\tbf20:                   80809cec 00000000 00000000 00000000 807ea000 80808dd8\r\n\tbf40: 00000001 ffffffff 80843a9c 80808d78 8055223c 807ebf7c 807ebf70 807ebf70\r\n\tbf60: 8000fc80 8000fc84 60000013 ffffffff\r\n\t[<8054c5f4>] (__irq_svc) from [<8000fc84>] (arch_cpu_idle+0x30/0x4c)\r\n\t[<8000fc84>] (arch_cpu_idle) from [<8005cb54>] (cpu_startup_entry+0x200/0x280)\r\n\t[<8005cb54>] (cpu_startup_entry) from [<80542134>] (rest_init+0x80/0x98)\r\n\t[<80542134>] (rest_init) from [<80786cd0>] (start_kernel+0x38c/0x3f8)\r\n\t\r\nAfter a reboot I downgraded to `33a6707cf1c96b8a2b5dac2ac9dead590db9fcaa` which gives the same problem:\r\n\t\r\n\troot@debug:~# rpi-update 33a6707cf1c96b8a2b5dac2ac9dead590db9fcaa\r\n\t *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom\r\n\t *** Performing self-update\r\n\t  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current\r\n\t                                 Dload  Upload   Total   Spent    Left  Speed\r\n\t100 10185  100 10185    0     0  44449      0 --:--:-- --:--:-- --:--:-- 44671\r\n\t *** Relaunching after update\r\n\t *** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom\r\n\t *** Downloading specific firmware revision (this will take a few minutes)\r\n\t  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current\r\n\t                                 Dload  Upload   Total   Spent    Left  Speed\r\n\t100   168    0   168    0     0    385      0 --:--:-- --:--:-- --:--:--   387\r\n\t  0     0    0 46.2M    0     0  2699k      0 --:--:--  0:00:17 --:--:-- 2477k\r\n\t *** Updating firmware\r\n\t *** Updating kernel modules\r\n\t *** depmod 3.18.16-v7+\r\n\t *** depmod 3.18.16+\r\n\t *** Updating VideoCore libraries\r\n\t *** Using HardFP libraries\r\n\t *** Updating SDK\r\n\t *** Running ldconfig\r\n\t *** Storing current firmware revision\r\n\t *** Deleting downloaded files\r\n\t *** Syncing changes to disk\r\n\t *** If no errors appeared, your firmware was successfully updated to 33a6707cf1c96b8a2b5dac2ac9dead590db9fcaa\r\n\t *** A reboot is needed to activate the new firmware\r\n\r\nReboot\r\n\t\r\n\t[    0.000000] Booting Linux on physical CPU 0xf00\r\n\t[    0.000000] Initializing cgroup subsys cpu\r\n\t[    0.000000] Initializing cgroup subsys cpuacct\r\n\t[    0.000000] Linux version 3.18.16-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #795 SMP PREEMPT Wed Jun 17 13:24:01 BST 2015\r\n\t[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d\r\n\t[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache\r\n\t[    0.000000] Machine model: Raspberry Pi 2 Model B Rev 1.1\r\n\t[    0.000000] cma: Reserved 8 MiB at 0x3d800000\r\n\t[    0.000000] Memory policy: Data cache writealloc\r\n\t[    0.000000] [bcm2709_smp_init_cpus] enter (8620->f3003010)\r\n\t[    0.000000] [bcm2709_smp_init_cpus] ncores=4\r\n\t[    0.000000] PERCPU: Embedded 10 pages/cpu @bd001000 s11456 r8192 d21312 u40960\r\n\t[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 251968\r\n\t[    0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2709.boardrev=0xa01041 bcm2709.serial=0xfe71a4bc smsc95xx.macaddr=B8:27:EB:71:A4:BC bcm2708_fb.fbswap=1 bcm2709.disk_led_gpio=47 bcm2709.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x3ea00000 vc_mem.mem_size=0x3f000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait\r\n\t[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)\r\n\t[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)\r\n\t[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)\r\n\t[    0.000000] Memory: 989568K/1015808K available (5739K kernel code, 397K rwdata, 1756K rodata, 388K init, 763K bss, 26240K reserved)\r\n\t[    0.000000] Virtual kernel memory layout:\r\n\t[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)\r\n\t[    0.000000]     fixmap  : 0xffc00000 - 0xffe00000   (2048 kB)\r\n\t[    0.000000]     vmalloc : 0xbe800000 - 0xff000000   (1032 MB)\r\n\t[    0.000000]     lowmem  : 0x80000000 - 0xbe000000   ( 992 MB)\r\n\t[    0.000000]     modules : 0x7f000000 - 0x80000000   (  16 MB)\r\n\t[    0.000000]       .text : 0x80008000 - 0x8075a024   (7497 kB)\r\n\t[    0.000000]       .init : 0x8075b000 - 0x807bc000   ( 388 kB)\r\n\t[    0.000000]       .data : 0x807bc000 - 0x8081f6bc   ( 398 kB)\r\n\t[    0.000000]        .bss : 0x8081f6bc - 0x808de494   ( 764 kB)\r\n\t[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1\r\n\t[    0.000000] Preemptible hierarchical RCU implementation.\r\n\t[    0.000000] NR_IRQS:608\r\n\t[    0.000000] Architected cp15 timer(s) running at 19.20MHz (virt).\r\n\t[    0.000013] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 3579139424256ns\r\n\t[    0.000036] Switching to timer-based delay loop, resolution 52ns\r\n\t[    0.000335] Console: colour dummy device 80x30\r\n\t[    0.000371] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)\r\n\t[    0.000398] pid_max: default: 32768 minimum: 301\r\n\t[    0.000775] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)\r\n\t[    0.000797] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)\r\n\t[    0.002032] Initializing cgroup subsys memory\r\n\t[    0.002083] Initializing cgroup subsys devices\r\n\t[    0.002109] Initializing cgroup subsys freezer\r\n\t[    0.002151] Initializing cgroup subsys net_cls\r\n\t[    0.002176] Initializing cgroup subsys blkio\r\n\t[    0.002262] CPU: Testing write buffer coherency: ok\r\n\t[    0.002343] ftrace: allocating 19685 entries in 58 pages\r\n\t[    0.050966] CPU0: update cpu_capacity 1024\r\n\t[    0.051005] CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00\r\n\t[    0.051021] [bcm2709_smp_prepare_cpus] enter\r\n\t[    0.051153] Setting up static identity map for 0x52d1f8 - 0x52d22c\r\n\t[    0.110890] [bcm2709_boot_secondary] cpu:1 started (0) 16\r\n\t[    0.111192] CPU1: Booted secondary processor\r\n\t[    0.111201] [bcm2709_secondary_init] enter cpu:1\r\n\t[    0.111251] CPU1: update cpu_capacity 1024\r\n\t[    0.111259] CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01\r\n\t[    0.130851] [bcm2709_boot_secondary] cpu:2 started (0) 18\r\n\t[    0.131104] CPU2: Booted secondary processor\r\n\t[    0.131111] [bcm2709_secondary_init] enter cpu:2\r\n\t[    0.131140] CPU2: update cpu_capacity 1024\r\n\t[    0.131148] CPU2: thread -1, cpu 2, socket 15, mpidr 80000f02\r\n\t[    0.150906] [bcm2709_boot_secondary] cpu:3 started (0) 17\r\n\t[    0.151147] CPU3: Booted secondary processor\r\n\t[    0.151154] [bcm2709_secondary_init] enter cpu:3\r\n\t[    0.151182] CPU3: update cpu_capacity 1024\r\n\t[    0.151190] CPU3: thread -1, cpu 3, socket 15, mpidr 80000f03\r\n\t[    0.151284] Brought up 4 CPUs\r\n\t[    0.151322] SMP: Total of 4 processors activated (153.60 BogoMIPS).\r\n\t[    0.151333] CPU: All CPU(s) started in SVC mode.\r\n\t[    0.152297] devtmpfs: initialized\r\n\t[    0.177198] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5\r\n\t[    0.179148] pinctrl core: initialized pinctrl subsystem\r\n\t[    0.182379] NET: Registered protocol family 16\r\n\t[    0.187951] DMA: preallocated 4096 KiB pool for atomic coherent allocations\r\n\t[    0.189067] bcm2709.uart_clock = 3000000\r\n\t[    0.192076] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.\r\n\t[    0.192094] hw-breakpoint: maximum watchpoint size is 8 bytes.\r\n\t[    0.192136] mailbox: Broadcom VideoCore Mailbox driver\r\n\t[    0.192249] bcm2708_vcio: mailbox at f300b880\r\n\t[    0.192606] bcm_power: Broadcom power driver\r\n\t[    0.192624] bcm_power_open() -> 0\r\n\t[    0.192636] bcm_power_request(0, 8)\r\n\t[    0.693300] bcm_mailbox_read -> 00000080, 0\r\n\t[    0.693314] bcm_power_request -> 0\r\n\t[    0.693455] Serial: AMBA PL011 UART driver\r\n\t[    0.693602] dev:f1: ttyAMA0 at MMIO 0x3f201000 (irq = 83, base_baud = 0) is a PL011 rev3\r\n\t[    1.198342] console [ttyAMA0] enabled\r\n\t[    1.274162] SCSI subsystem initialized\r\n\t[    1.278143] usbcore: registered new interface driver usbfs\r\n\t[    1.283791] usbcore: registered new interface driver hub\r\n\t[    1.289227] usbcore: registered new device driver usb\r\n\t[    1.296096] Switched to clocksource arch_sys_counter\r\n\t[    1.331010] FS-Cache: Loaded\r\n\t[    1.334213] CacheFiles: Loaded\r\n\t[    1.348750] NET: Registered protocol family 2\r\n\t[    1.354370] TCP established hash table entries: 8192 (order: 3, 32768 bytes)\r\n\t[    1.361591] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)\r\n\t[    1.368294] TCP: Hash tables configured (established 8192 bind 8192)\r\n\t[    1.374745] TCP: reno registered\r\n\t[    1.378015] UDP hash table entries: 512 (order: 2, 16384 bytes)\r\n\t[    1.383979] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)\r\n\t[    1.390722] NET: Registered protocol family 1\r\n\t[    1.395705] RPC: Registered named UNIX socket transport module.\r\n\t[    1.401659] RPC: Registered udp transport module.\r\n\t[    1.406380] RPC: Registered tcp transport module.\r\n\t[    1.411077] RPC: Registered tcp NFSv4.1 backchannel transport module.\r\n\t[    1.418450] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available\r\n\t[    1.426823] bcm2708_dma: DMA manager at f3007000\r\n\t[    1.431613] vc-mem: phys_addr:0x00000000 mem_base=0x3ea00000 mem_size:0x3f000000(1008 MiB)\r\n\t[    1.441403] futex hash table entries: 1024 (order: 4, 65536 bytes)\r\n\t[    1.447861] audit: initializing netlink subsys (disabled)\r\n\t[    1.453308] audit: type=2000 audit(1.239:1): initialized\r\n\t[    1.474894] VFS: Disk quotas dquot_6.5.2\r\n\t[    1.479219] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)\r\n\t[    1.488770] FS-Cache: Netfs 'nfs' registered for caching\r\n\t[    1.495118] NFS: Registering the id_resolver key type\r\n\t[    1.500285] Key type id_resolver registered\r\n\t[    1.504464] Key type id_legacy registered\r\n\t[    1.509690] msgmni has been set to 1948\r\n\t[    1.515266] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)\r\n\t[    1.522888] io scheduler noop registered\r\n\t[    1.526850] io scheduler deadline registered\r\n\t[    1.531451] io scheduler cfq registered (default)\r\n\t[    1.538817] BCM2708FB: allocated DMA memory fdc00000\r\n\t[    1.543825] BCM2708FB: allocated DMA channel 0 @ f3007000\r\n\t[    1.554776] Console: switching to colour frame buffer device 82x26\r\n\t[    1.565062] bcm2708-dmaengine bcm2708-dmaengine: Load BCM2835 DMA engine driver\r\n\t[    1.572700] uart-pl011 dev:f1: no DMA platform data\r\n\t[    1.577653] kgdb: Registered I/O driver kgdboc.\r\n\t[    1.606623] vc-cma: Videocore CMA driver\r\n\t[    1.610544] vc-cma: vc_cma_base      = 0x00000000\r\n\t[    1.615240] vc-cma: vc_cma_size      = 0x00000000 (0 MiB)\r\n\t[    1.620659] vc-cma: vc_cma_initial   = 0x00000000 (0 MiB)\r\n\t[    1.637974] brd: module loaded\r\n\t[    1.646938] loop: module loaded\r\n\t[    1.650933] vchiq: vchiq_init_state: slot_zero = 0xbdc80000, is_master = 0\r\n\t[    1.658681] Loading iSCSI transport class v2.0-870.\r\n\t[    1.664519] usbcore: registered new interface driver smsc95xx\r\n\t[    1.670366] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)\r\n\t[    1.876471] Core Release: 2.80a\r\n\t[    1.879617] Setting default values for core params\r\n\t[    1.884438] Finished setting default values for core params\r\n\t[    2.090436] Using Buffer DMA mode\r\n\t[    2.093750] Periodic Transfer Interrupt Enhancement - disabled\r\n\t[    2.099591] Multiprocessor Interrupt Enhancement - disabled\r\n\t[    2.105156] OTG VER PARAM: 0, OTG VER FLAG: 0\r\n\t[    2.109530] Dedicated Tx FIFOs mode\r\n\t[    2.113298] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xbdc14000 dma = 0xfdc14000 len=9024\r\n\t[    2.123164] FIQ FSM acceleration enabled for :\r\n\t[    2.123164] Non-periodic Split Transactions\r\n\t[    2.123164] Periodic Split Transactions\r\n\t[    2.123164] High-Speed Isochronous Endpoints\r\n\t[    2.139929] WARN::hcd_init_fiq:412: FIQ on core 1 at 0x803db878\r\n\t[    2.145848] WARN::hcd_init_fiq:413: FIQ ASM at 0x803dbbd4 length 36\r\n\t[    2.152112] WARN::hcd_init_fiq:438: MPHI regs_base at 0xbe80a000\r\n\t[    2.158153] dwc_otg bcm2708_usb: DWC OTG Controller\r\n\t[    2.163067] dwc_otg bcm2708_usb: new USB bus registered, assigned bus number 1\r\n\t[    2.170338] dwc_otg bcm2708_usb: irq 32, io mem 0x00000000\r\n\t[    2.175858] Init: Port Power? op_state=1\r\n\t[    2.179797] Init: Power Port (0)\r\n\t[    2.183305] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002\r\n\t[    2.190117] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1\r\n\t[    2.197353] usb usb1: Product: DWC OTG Controller\r\n\t[    2.202055] usb usb1: Manufacturer: Linux 3.18.16-v7+ dwc_otg_hcd\r\n\t[    2.208162] usb usb1: SerialNumber: bcm2708_usb\r\n\t[    2.213618] hub 1-0:1.0: USB hub found\r\n\t[    2.217507] hub 1-0:1.0: 1 port detected\r\n\t[    2.222316] usbcore: registered new interface driver usb-storage\r\n\t[    2.228674] mousedev: PS/2 mouse device common for all mice\r\n\t[    2.234836] bcm2835-cpufreq: min=600000 max=900000\r\n\t[    2.240048] sdhci: Secure Digital Host Controller Interface driver\r\n\t[    2.246318] sdhci: Copyright(c) Pierre Ossman\r\n\t[    2.251105] mmc-bcm2835 3f300000.mmc: DMA channels allocated\r\n\t[    2.296433] sdhci-pltfm: SDHCI platform and OF driver helper\r\n\t[    2.308101] ledtrig-cpu: registered to indicate activity on CPUs\r\n\t[    2.314361] hidraw: raw HID events driver (C) Jiri Kosina\r\n\t[    2.321127] usbcore: registered new interface driver usbhid\r\n\t[    2.327806] usbhid: USB HID core driver\r\n\t[    2.333108] TCP: cubic registered\r\n\t[    2.336536] Initializing XFRM netlink socket\r\n\t[    2.342005] NET: Registered protocol family 17\r\n\t[    2.348847] Key type dns_resolver registered\r\n\t[    2.353627] Registering SWP/SWPB emulation handler\r\n\t[    2.359389] registered taskstats version 1\r\n\t[    2.363819] vc-sm: Videocore shared memory driver\r\n\t[    2.368584] [vc_sm_connected_init]: start\r\n\t[    2.372913] vc_vchi_sm_init: failed to open VCHI service (-1)\r\n\t[    2.378587] [vc_sm_connected_init]: failed to initialize shared memory service\r\n\t[    2.386047] [vc_sm_connected_init]: end - returning -1\r\n\t[    2.392876] Waiting for root device /dev/mmcblk0p2...\r\n\t[    2.404969] mmc0: host does not support reading read-only switch, assuming write-enable\r\n\t[    2.416247] Indeed it is in host mode hprt0 = 00021501\r\n\t[    2.416841] mmc0: new high speed SDHC card at address e624\r\n\t[    2.417486] mmcblk0: mmc0:e624 SU08G 7.40 GiB\r\n\t[    2.428562]  mmcblk0: p1 p2\r\n\t[    2.518688] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)\r\n\t[    2.526946] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.\r\n\t[    2.542950] devtmpfs: mounted\r\n\t[    2.546821] Freeing unused kernel memory: 388K (8075b000 - 807bc000)\r\n\t[    2.606219] usb 1-1: new high-speed USB device number 2 using dwc_otg\r\n\t[    2.612934] Indeed it is in host mode hprt0 = 00001101\r\n\tMount failed for selinuxfs on /sys/fs/selinux:  No such file or directory\r\n\t[    2.816556] usb 1-1: New USB device found, idVendor=0424, idProduct=9514\r\n\t[    2.823271] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0\r\n\t[    2.831337] hub 1-1:1.0: USB hub found\r\n\t[    2.835266] hub 1-1:1.0: 5 ports detected\r\n\t[    2.937447] random: init urandom read with 54 bits of entropy available\r\n\t[    3.101337] init: plymouth-upstart-bridge main process (62) terminated with status 1\r\n\t[    3.110626] init: plymouth-upstart-bridge main process ended, respawning\r\n\t[    3.126442] usb 1-1.1: new high-speed USB device number 3 using dwc_otg\r\n\t[    3.174418] init: plymouth-upstart-bridge main process (71) terminated with status 1\r\n\t[    3.182510] init: plymouth-upstart-bridge main process ended, respawning\r\n\t[    3.236809] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00\r\n\t[    3.243748] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0\r\n\t[    3.254249] smsc95xx v1.0.4\r\n\t[    3.321076] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:71:a4:bc\r\n\t * Starting Mount filesystems on boot                                    [ OK ]\r\n\t * Stopping Send an event to indicate plymouth is up                     [ OK ]\r\n\t * Starting Populate /dev filesystem                                     [ OK ]\r\n\t * Stopping Populate /dev filesystem                                     [ OK ]\r\n\t * Starting Populate and link to /run filesystem                         [ OK ]\r\n\t * Stopping Populate and link to /run filesystem                         [ OK ]\r\n\t * Stopping Track if upstart is running in a container                   [ OK ]\r\n\t * Starting set console keymap                                           [ OK ]\r\n\t * Starting Signal sysvinit that virtual filesystems are mounted         [ OK ]\r\n\t * Starting Signal sysvinit that virtual filesystems are mounted         [ OK ]\r\n\t * Starting Bridge udev events into upstart                              [ OK ]\r\n\t * Stopping set console keymap                                           [ OK ]\r\n\t * Starting device node and kernel event manager                         [ OK ]\r\n\t * Starting Signal sysvinit that remote filesystems are mounted          [ OK ]\r\n\t * Starting load modules from /etc/modules                               [ OK ]\r\n\t * Starting cold plug devices                                            [ OK ]\r\n\t * Starting log initial device creation                                  [ OK ]\r\n\t * Stopping load modules from /etc/modules                               [ OK ]\r\n\t * Starting set console font                                             [ OK ]\r\n\t * Starting set console font                                             [fail]\r\n\t * Starting userspace bootsplash                                         [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Stopping cold plug devices                                            [ OK ]\r\n\t * Stopping userspace bootsplash                                         [ OK ]\r\n\t * Starting Send an event to indicate plymouth is up                     [ OK ]\r\n\t * Stopping log initial device creation                                  [ OK ]\r\n\t * Stopping Send an event to indicate plymouth is up                     [ OK ]\r\n\t * Starting Signal sysvinit that the rootfs is mounted                   [ OK ]\r\n\t * Starting Mount network filesystems                                    [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Starting Clean /tmp directory                                         [ OK ]\r\n\t * Stopping Mount network filesystems                                    [ OK ]\r\n\t * Starting configure network device                                     [ OK ]\r\n\t * Stopping Clean /tmp directory                                         [ OK ]\r\n\t * Starting Signal sysvinit that local filesystems are mounted           [ OK ]\r\n\t * Starting configure network device security                            [ OK ]\r\n\t * Starting Failsafe Boot Delay                                          [ OK ]\r\n\t * Starting flush early job output to logs                               [ OK ]\r\n\t * Starting save udev log and update rules                               [ OK ]\r\n\t * Stopping Mount filesystems on boot                                    [ OK ]\r\n\t * Stopping save udev log and update rules                               [ OK ]\r\n\t * Stopping flush early job output to logs                               [ OK ]\r\n\t * Starting configure virtual network devices                            [ OK ]\r\n\t * Starting Mount network filesystems                                    [ OK ]\r\n\t * Starting configure network device                                     [ OK ]\r\n\t * Stopping Failsafe Boot Delay                                          [ OK ]\r\n\t * Starting System V initialisation compatibility                        [ OK ]\r\n\t * Stopping Mount network filesystems                                    [ OK ]\r\n\t * Stopping System V initialisation compatibility                        [ OK ]\r\n\t * Starting System V runlevel compatibility                              [ OK ]\r\n\t * Starting regular background program processing daemon                 [ OK ]\r\n\t * Starting NTP server ntpd                                              [ OK ]\r\n\t * Starting OpenSSH server                                               [ OK ]\r\n\t * Starting Bridge file events into upstart                              [ OK ]\r\n\t * Stopping System V runlevel compatibility                              [ OK ]\r\n\t * Starting Bridge socket events into upstart                            [ OK ]\r\n\t\r\n\tUbuntu 14.04 LTS debug ttyAMA0\r\n\t\r\n\tdebug login:\r\n\r\nAnd then\r\n\t\r\n\troot@debug:~# ping google.com\r\n\tPING google.com (173.194.116.195): 56 data bytes\r\n\t64 bytes from 173.194.116.195: icmp_seq=0 ttl=55 time=6.215 ms\r\n\t^C--- google.com ping statistics ---\r\n\t1 packets transmitted, 1 packets received, 0% packet loss\r\n\tround-trip min/avg/max/stddev = 6.215/6.215/6.215/0.000 ms\r\n\troot@debug:~# apt-get update\r\n\tIgn http://ftp.tu-chemnitz.de trusty InRelease\r\n\tGet:1 http://ftp.tu-chemnitz.de trusty Release.gpg [933 B]\r\n\tGet:2 http://ftp.tu-chemnitz.de trusty Release [58.5 kB]\r\n\t2% [2 Release 0 B/58.5 kB[   29.807097] skbuff: skb_over_panic: text:803a04b4 len:1536 put:1536 head:bb310000 data:bb310042 tail:0xbb310642 end:0xbb310640 dev:eth1\r\n\t[   29.820218] ------------[ cut here ]------------\r\n\t[   29.824829] kernel BUG at net/core/skbuff.c:100!\r\n\t[   29.829440] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM\r\n\t 0%]\r\n\tEntering kdb (current=0x807e47e0, pid 0) on processor 0 Oops: (null)\r\n\tdue to oops @ 0x80525e18\r\n\tdCPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.18.16-v7+ #795\r\n\tdtask: 807e47e0 ti: 807bc000 task.ti: 807bc000\r\n\tPC is at skb_panic+0x64/0x70\r\n\tLR is at console_unlock+0x2cc/0x510\r\n\tpc : [<80525e18>]    lr : [<80064fe0>]    psr: 20000193\r\n\tsp : 807bdd60  ip : 807bdc78  fp : 807bdd94\r\n\tr10: 8052f828  r9 : 00000101  r8 : 00000000\r\n\tr7 : 806a1860  r6 : bb310000  r5 : 00000600  r4 : bb310042\r\n\tr3 : 00000101  r2 : 00000102  r1 : 60000193  r0 : 0000007b\r\n\tFlags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel\r\n\tControl: 10c5387d  Table: 3b35406a  DAC: 00000015\r\n\tdCPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.18.16-v7+ #795\r\n\t[<800172e4>] (unwind_backtrace) from [<80012fa4>] (show_stack+0x20/0x24)\r\n\t[<80012fa4>] (show_stack) from [<805256e8>] (dump_stack+0x98/0xd8)\r\n\t[<805256e8>] (dump_stack) from [<8001002c>] (show_regs+0x1c/0x20)\r\n\t[<8001002c>] (show_regs) from [<800a92c4>] (kdb_dumpregs+0x38/0x60)\r\n\t[<800a92c4>] (kdb_dumpregs) from [<800ac77c>] (kdb_main_loop+0x36c/0x744)\r\n\t[<800ac77c>] (kdb_main_loop) from [<800af420>] (kdb_stub+0x1e4/0x454)\r\n\t[<800af420>] (kdb_stub) from [<800a54dc>] (kgdb_cpu_enter+0x3fc/0x734)\r\n\t[<800a54dc>] (kgdb_cpu_enter) from [<800a5adc>] (kgdb_handle_exception+0x178/0x1e0)\r\n\t[<800a5adc>] (kgdb_handle_exception) from [<800168c0>] (kgdb_notify+0x3c/0x90)\r\n\t[<800168c0>] (kgdb_notify) from [<80040f98>] (notifier_call_chain+0x54/0x94)\r\n\t[<80040f98>] (notifier_call_chain) from [<800412d4>] (atomic_notifier_call_chain+0x44/0x58)\r\n\t[<800412d4>] (atomic_notifier_call_chain) from [<80041328>] (notify_die+0x40/0x4c)\r\n\t[<80041328>] (notify_die) from [<800130a4>] (die+0xfc/0x3e8)\r\n\t[<800130a4>] (die) from [<800133bc>] (arm_notify_die+0x2c/0x64)\r\n\t[<800133bc>] (arm_notify_die) from [<80008384>] (do_undefinstr+0x144/0x1a8)\r\n\t[<80008384>] (do_undefinstr) from [<8052b0d0>] (__und_svc_finish+0x0/0x30)\r\n\tException stack(0x807bdcd8 to 0x807bdd20)\r\n\tdcc0:                                                       0000007b 60000193\r\n\tdce0: 00000102 00000101 bb310042 00000600 bb310000 806a1860 00000000 00000101\r\n\tdd00: 8052f828 807bdd94 807bdc78 807bdd60 80064fe0 80525e18 20000193 ffffffff\r\n\t[<8052b0d0>] (__und_svc_finish) from [<80525e18>] (skb_panic+0x64/0x70)\r\n\t[<80525e18>] (skb_panic) from [<80441f20>] (skb_put+0x5c/0x60)\r\n\t[<80441f20>] (skb_put) from [<803a04b4>] (rx_complete+0x34/0x1fc)\r\n\t[<803a04b4>] (rx_complete) from [<803a8630>] (__usb_hcd_giveback_urb+0x80/0x154)\r\n\t[<803a8630>] (__usb_hcd_giveback_urb) from [<803a8754>] (usb_hcd_giveback_urb+0x50/0x118)\r\n\t[<803a8754>] (usb_hcd_giveback_urb) from [<803cecd4>] (completion_tasklet_func+0x6c/0x98)\r\n\t[<803cecd4>] (completion_tasklet_func) from [<803dd130>] (tasklet_callback+0x20/0x24)\r\n\t[<803dd130>] (tasklet_callback) from [<80029640>] (tasklet_hi_action+0x7c/0x114)\r\n\t[<80029640>] (tasklet_hi_action) from [<80028c08>] (__do_softirq+0x12c/0x384)\r\n\t[<80028c08>] (__do_softirq) from [<800291e4>] (irq_exit+0xc0/0x110)\r\n\t[<800291e4>] (irq_exit) from [<80066e50>] (__handle_domain_irq+0x8c/0xdc)\r\n\t[<80066e50>] (__handle_domain_irq) from [<80008564>] (asm_do_IRQ+0x2c/0x30)\r\n\t[<80008564>] (asm_do_IRQ) from [<8052af34>] (__irq_svc+0x34/0x14c)\r\n\tException stack(0x807bdf20 to 0x807bdf68)\r\n\tdf20: 807e1ccc 00000000 00000000 00000000 807bc000 8081f6c0 807e0dd4 ffffffff\r\n\tdf40: 8081aadc 807e0d74 8052f828 807bdf74 807bdf68 807bdf68 8000fca0 8000fca4\r\n\tdf60: 60000013 ffffffff\r\n\t[<8052af34>] (__irq_svc) from [<8000fca4>] (arch_cpu_idle+0x30/0x4c)\r\n\t[<8000fca4>] (arch_cpu_idle) from [<8005b8fc>] (cpu_startup_entry+0x1e4/0x264)\r\n\t[<8005b8fc>] (cpu_startup_entry) from [<80521068>] (rest_init+0x80/0x98)\r\n\t[<80521068>] (rest_init) from [<8075bcb4>] (start_kernel+0x370/0x3d8)\r\n"},"comment":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/comments/183724214","html_url":"https://github.com/raspberrypi/linux/issues/1045#issuecomment-183724214","issue_url":"https://api.github.com/repos/raspberrypi/linux/issues/1045","id":183724214,"user":{"login":"popcornmix","id":1053730,"avatar_url":"https://avatars.githubusercontent.com/u/1053730?v=3","gravatar_id":"","url":"https://api.github.com/users/popcornmix","html_url":"https://github.com/popcornmix","followers_url":"https://api.github.com/users/popcornmix/followers","following_url":"https://api.github.com/users/popcornmix/following{/other_user}","gists_url":"https://api.github.com/users/popcornmix/gists{/gist_id}","starred_url":"https://api.github.com/users/popcornmix/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/popcornmix/subscriptions","organizations_url":"https://api.github.com/users/popcornmix/orgs","repos_url":"https://api.github.com/users/popcornmix/repos","events_url":"https://api.github.com/users/popcornmix/events{/privacy}","received_events_url":"https://api.github.com/users/popcornmix/received_events","type":"User","site_admin":false},"created_at":"2016-02-13T18:58:21Z","updated_at":"2016-02-13T18:58:21Z","body":"We really don't want to handle bug fixes in upstream code here.\r\nIf there are upstream bugs then please submit fixes upstream.\r\nAssuming they are accepted we can cherry-pick them early (knowing they have been peer reviewed and will disappear with a future upstream bump)."}}