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[Bug 1438318] Re: [arm64] tg3 NIC causing kernel stack trace

 

** Summary changed:

- tg3 NIC causing kernel stack trace
+ [arm64] tg3 NIC causing kernel stack trace

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https://bugs.launchpad.net/bugs/1438318

Title:
  [arm64] tg3 NIC causing kernel stack trace

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Below is the relevant output from u-boot (arm64) loading the kernel (I
  believe it has all pertinent information).  It should also be noted
  that when we pulled the tg3 NIC out of the machine, it booted up fine
  and there was no longer any issues:

  
  ## Booting kernel from Legacy Image at 4002000000 ...
     Image Name:   kernel 3.16.0-33-generic
     Image Type:   ARM Linux Kernel Image (uncompressed)
     Data Size:    11536696 Bytes = 11 MiB
     Load Address: 00080000
     Entry Point:  00080000
     Verifying Checksum ... OK
  ## Loading init Ramdisk from Legacy Image at 4004000000 ...
     Image Name:   ramdisk 3.16.0-33-generic
     Image Type:   ARM Linux RAMDisk Image (gzip compressed)
     Data Size:    24313751 Bytes = 23.2 MiB
     Load Address: 00000000
     Entry Point:  00000000
     Verifying Checksum ... OK
  ## Flattened Device Tree blob at 4003000000
     Booting using the fdt blob at 0x0000004003000000
     Loading Kernel Image ... OK
  OK
     Loading Ramdisk to 43de8d0000, end 43dfffff97 ... OK
     Loading Device Tree to 0000004000ff9000, end 0000004000fff838 ... OK
  Fix up GIC node for non-secure access

  Starting kernel ...

  L3C: 8MB
  [    0.000000] Initializing cgroup subsys cpuset
  [    0.000000] Initializing cgroup subsys cpu
  [    0.000000] Initializing cgroup subsys cpuacct
  [    0.000000] Linux version 3.16.0-33-generic (buildd@templar) (gcc version 4.9.1 (Ubuntu/Linaro 4.9.1-16ubuntu6) ) #44-Ubuntu SMP Thu Mar 12 12:25:12 UTC 2015 (Ubuntu 3.16.0-33.44-generic 3.16.7-ckt7)
  [    0.000000] CPU: AArch64 Processor [500f0000] revision 0
  [    0.000000] efi: Getting EFI parameters from FDT:
  [    0.000000] efi: UEFI not found.
  [    0.000000] PERCPU: Embedded 12 pages/cpu @ffffffc3fff59000 s19520 r8192 d21440 u49152
  [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 4136960
  [    0.000000] Kernel command line: nomodeset iscsi_target_name=iqn.2004-05.com.ubuntu:maas:ephemeral-ubuntu-arm64-xgene-uboot-mustang-utopic-daily iscsi_target_ip=10.228.12.173 iscsi_target_port=3260 iscsi_initiator=hidden-chicken ip=::::hidden-chicken:BOOTIF ro root=/dev/disk/by-path/ip-10.228.12.173:3260-iscsi-iqn.2004-05.com.ubuntu:maas:ephemeral-ubuntu-arm64-xgene-uboot-mustang-utopic-daily-lun-1 overlayroot=tmpfs cloud-config-url=http://10.228.12.173/MAAS/metadata/latest/by-id/node-4a600b98-d370-11e4-a434-00163e634f88/?op=get_preseed log_host=10.228.12.173 log_port=514 xx console=ttyS0,115200 BOOTIF=01-00-01-73-02-08-25
  [    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
  [    0.000000] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
  [    0.000000] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
  [    0.000000] Memory: 16486692K/16777216K available (6935K kernel code, 754K rwdata, 3016K rodata, 555K init, 757K bss, 290524K reserved)
  [    0.000000] Virtual kernel memory layout:
  [    0.000000]     vmalloc : 0xffffff8000000000 - 0xffffffbbffff0000   (245759 MB)
  [    0.000000]     vmemmap : 0xffffffbce0000000 - 0xffffffbcee000000   (   224 MB)
  [    0.000000]     modules : 0xffffffbffc000000 - 0xffffffc000000000   (    64 MB)
  [    0.000000]     memory  : 0xffffffc000000000 - 0xffffffc400000000   ( 16384 MB)
  [    0.000000]       .init : 0xffffffc000a39000 - 0xffffffc000ac3c40   (   556 kB)
  [    0.000000]       .text : 0xffffffc000080000 - 0xffffffc000a38dc4   (  9956 kB)
  [    0.000000]       .data : 0xffffffc000ac4000 - 0xffffffc000b80938   (   755 kB)
  [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
  [    0.000000] Hierarchical RCU implementation.
  [    0.000000] 	RCU dyntick-idle grace-period acceleration is enabled.
  [    0.000000] NR_IRQS:64 nr_irqs:64 0
  [    0.000000] Architected cp15 timer(s) running at 50.00MHz (phys).
  [    0.000002] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every 2748779069440ns
  [    0.000069] Console: colour dummy device 80x25
  [    0.003113] allocated 67108864 bytes of page_cgroup
  [    0.003116] please try 'cgroup_disable=memory' option if you don't want memory cgroups
  [    0.003125] Calibrating delay loop (skipped), value calculated using timer frequency.. 100.00 BogoMIPS (lpj=500000)
  [    0.003129] pid_max: default: 32768 minimum: 301
  [    0.003167] Security Framework initialized
  [    0.003203] AppArmor: AppArmor initialized
  [    0.003205] Yama: becoming mindful.
  [    0.003266] Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
  [    0.003270] Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)
  [    0.003599] Initializing cgroup subsys memory
  [    0.003634] Initializing cgroup subsys devices
  [    0.003643] Initializing cgroup subsys freezer
  [    0.003648] Initializing cgroup subsys net_cls
  [    0.003655] Initializing cgroup subsys blkio
  [    0.003661] Initializing cgroup subsys perf_event
  [    0.003665] Initializing cgroup subsys net_prio
  [    0.003675] Initializing cgroup subsys hugetlb
  [    0.003693] ftrace: allocating 25214 entries in 99 pages
  [    0.014118] hw perfevents: enabled with arm/armv8-pmuv3 PMU driver, 5 counters available
  [    0.014134] EFI services will not be available.
  [    0.015996] CPU1: Booted secondary processor
  [    0.016142] CPU2: Booted secondary processor
  [    0.016280] CPU3: Booted secondary processor
  [    0.016411] CPU4: Booted secondary processor
  [    0.016547] CPU5: Booted secondary processor
  [    0.016678] CPU6: Booted secondary processor
  [    0.016814] CPU7: Booted secondary processor
  [    0.016843] Brought up 8 CPUs
  [    0.016852] SMP: Total of 8 processors activated.
  [    0.017122] devtmpfs: initialized
  [    0.018851] evm: security.selinux
  [    0.018855] evm: security.SMACK64
  [    0.018857] evm: security.SMACK64EXEC
  [    0.018858] evm: security.SMACK64TRANSMUTE
  [    0.018860] evm: security.SMACK64MMAP
  [    0.018861] evm: security.ima
  [    0.018863] evm: security.capability
  [    0.020537] regulator-dummy: no parameters
  [    0.021417] NET: Registered protocol family 16
  [    0.021700] cpuidle: using governor ladder
  [    0.021705] cpuidle: using governor menu
  [    0.021760] vdso: 2 pages (1 code, 1 data) at base ffffffc000ac9000
  [    0.021779] hw-breakpoint: found 4 breakpoint and 4 watchpoint registers.
  [    0.021988] software IO TLB [mem 0x40ffc00000-0x4100000000] (4MB) mapped at [ffffffc0ffc00000-ffffffc0ffffffff]
  [    0.022048] Serial: AMBA PL011 UART driver
  [    0.054773] vgaarb: loaded
  [    0.055173] SCSI subsystem initialized
  [    0.055322] usbcore: registered new interface driver usbfs
  [    0.055339] usbcore: registered new interface driver hub
  [    0.055369] usbcore: registered new device driver usb
  [    0.055760] NetLabel: Initializing
  [    0.055763] NetLabel:  domain hash size = 128
  [    0.055765] NetLabel:  protocols = UNLABELED CIPSOv4
  [    0.055784] NetLabel:  unlabeled traffic allowed by default
  [    0.056006] XGene: PCIe MSI driver v0.1
  [    0.056112] Switched to clocksource arch_sys_counter
  [    0.067336] AppArmor: AppArmor Filesystem Enabled
  [    0.070325] NET: Registered protocol family 2
  [    0.070646] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
  [    0.070984] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
  [    0.071350] TCP: Hash tables configured (established 131072 bind 65536)
  [    0.071375] TCP: reno registered
  [    0.071383] UDP hash table entries: 8192 (order: 6, 262144 bytes)
  [    0.071519] UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
  [    0.071738] NET: Registered protocol family 1
  [    0.071848] Trying to unpack rootfs image as initramfs...
  [    0.562201] Freeing initrd memory: 23740K (ffffffc3de8d0000 - ffffffc3dffff000)
  [    0.562369] kvm [1]: Using HYP init bounce page @40fe488000
  [    0.562441] kvm [1]: interrupt-controller@780c0000 IRQ25
  [    0.562552] kvm [1]: timer IRQ30
  [    0.562561] kvm [1]: Hyp mode initialized successfully
  [    0.563075] futex hash table entries: 2048 (order: 5, 131072 bytes)
  [    0.563097] Initialise system trusted keyring
  [    0.563148] audit: initializing netlink subsys (disabled)
  [    0.563181] audit: type=2000 audit(0.550:1): initialized
  [    0.563457] HugeTLB registered 2 MB page size, pre-allocated 0 pages
  [    0.565918] zpool: loaded
  [    0.565924] zbud: loaded
  [    0.566204] VFS: Disk quotas dquot_6.5.2
  [    0.566272] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
  [    0.567148] fuse init (API version 7.23)
  [    0.567300] msgmni has been set to 32246
  [    0.567398] Key type big_key registered
  [    0.567732] Key type asymmetric registered
  [    0.567738] Asymmetric key parser 'x509' registered
  [    0.567817] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
  [    0.567886] io scheduler noop registered
  [    0.567891] io scheduler deadline registered (default)
  [    0.567977] io scheduler cfq registered
  [    0.596168] xgene-pcie 1f2b0000.pcie: (rc) x1 gen-1 link up
  [    0.596233] PCI host bridge to bus 0000:00
  [    0.596238] pci_bus 0000:00: root bus resource [io  0x0000-0x10000]
  [    0.596242] pci_bus 0000:00: root bus resource [mem 0xe010000000-0xe08fffffff] (bus address [0x10000000-0x8fffffff])
  [    0.596245] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
  [    0.596311] pci 0000:00:00.0: Hiding X-Gene pci host bridge resources 0000:00:00.0
  [    0.596431] PCI: bus0: Fast back to back transfers disabled
  [    0.616174] PCI: bus1: Fast back to back transfers disabled
  [    0.616201] pcieport 0000:00:00.0: device [e008:e004] has invalid IRQ; check vendor BIOS
  [    0.616279] pci 0000:00:00.0: BAR 14: assigned [mem 0xe010000000-0xe0100fffff]
  [    0.616285] pci 0000:01:00.0: BAR 0: assigned [mem 0xe010000000-0xe01000ffff 64bit]
  [    0.616308] pci 0000:00:00.0: PCI bridge to [bus 01]
  [    0.616314] pci 0000:00:00.0:   bridge window [mem 0xe010000000-0xe0100fffff]
  [    0.616562] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
  [    0.618731] console [ttyS0] disabled
  [    0.618747] 1c020000.serial: ttyS0 at MMIO 0x1c020000 (irq = 108, base_baud = 3125000) is a 16550A
  [    1.395620] console [ttyS0] enabled
  [    1.401387] brd: module loaded
  [    1.405498] loop: module loaded
  [    1.408981] libphy: Fixed MDIO Bus: probed
  [    1.413058] tun: Universal TUN/TAP device driver, 1.6
  [    1.418090] tun: (C) 1999-2004 Max Krasnyansky <maxk@xxxxxxxxxxxx>
  [    1.424337] PPP generic driver version 2.4.2
  [    1.428656] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
  [    1.435158] ehci-pci: EHCI PCI platform driver
  [    1.439603] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
  [    1.445754] ohci-pci: OHCI PCI platform driver
  [    1.450193] uhci_hcd: USB Universal Host Controller Interface driver
  [    1.456681] mousedev: PS/2 mouse device common for all mice
  [    1.462418] xgene-rtc 10510000.rtc: rtc core: registered 10510000.rtc as rtc0
  [    1.469713] device-mapper: uevent: version 1.0.3
  [    1.474418] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@xxxxxxxxxx
  [    1.482864] ledtrig-cpu: registered to indicate activity on CPUs
  [    1.488974] TCP: cubic registered
  [    1.492510] NET: Registered protocol family 10
  [    1.497279] NET: Registered protocol family 17
  [    1.501719] Key type dns_resolver registered
  [    1.506197] Loading compiled-in X.509 certificates
  [    1.512350] Loaded X.509 cert 'Magrathea: Glacier signing key: 79e6d0eaf0f3a33ed7b911b2db5bb22aea83eae1'
  [    1.521798] registered taskstats version 1
  [    1.528863] Key type trusted registered
  [    1.542946] Key type encrypted registered
  [    1.546950] AppArmor: AppArmor sha1 policy hashing enabled
  [    1.552409] ima: No TPM chip found, activating TPM-bypass!
  [    1.557907] evm: HMAC attrs: 0x1
  [    1.561288] xgene-rtc 10510000.rtc: setting system clock to 2015-03-26 16:23:04 UTC (1427386984)
  [   13.686293] Freeing unused kernel memory: 552K (ffffffc000a39000 - ffffffc000ac3000)
  Loading, please wait...
  [   13.714125] systemd-udevd[136]: starting version 208
  [   13.719918] random: systemd-udevd urandom read with 1 bits of entropy available
  [   13.736743] pps_core: LinuxPPS API ver. 1 registered
  [   13.739401] libphy: APM X-Gene MDIO bus: probed
  [   13.746218] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx>
  [   13.746902] xgene-ahci 1a400000.sata: skip clock and PHY initialization
  [   13.746916] xgene-ahci 1a400000.sata: controller can't do NCQ, turning off CAP_NCQ
  [   13.746918] xgene-ahci 1a400000.sata: controller can't do PMP, turning off CAP_PMP
  [   13.746947] xgene-ahci 1a400000.sata: AHCI 0001.0300 32 slots 2 ports 6 Gbps 0x3 impl platform mode
  [   13.746951] xgene-ahci 1a400000.sata: flags: 64bit sntf pm only fbs pio slum part ccc apst boh
  [   13.748211] scsi0 : ahci_platform
  [   13.749133] scsi1 : ahci_platform
  [   13.749243] ata1: SATA max UDMA/133 mmio [mem 0x1a400000-0x1a400fff] port 0x100 irq 167
  [   13.749245] ata2: SATA max UDMA/133 mmio [mem 0x1a400000-0x1a400fff] port 0x180 irq 167
  [   13.749328] xgene-ahci 1a800000.sata: invalid resource
  [   13.749331] xgene-ahci 1a800000.sata: skip clock and PHY initialization
  [   13.749342] xgene-ahci 1a800000.sata: controller can't do NCQ, turning off CAP_NCQ
  [   13.749344] xgene-ahci 1a800000.sata: controller can't do PMP, turning off CAP_PMP
  [   13.749366] xgene-ahci 1a800000.sata: AHCI 0001.0300 32 slots 2 ports 6 Gbps 0x3 impl platform mode
  [   13.749369] xgene-ahci 1a800000.sata: flags: 64bit sntf pm only fbs pio slum part ccc apst boh
  [   13.749832] scsi2 : ahci_platform
  [   13.749992] scsi3 : ahci_platform
  [   13.750095] ata3: SATA max UDMA/133 mmio [mem 0x1a800000-0x1a800fff] port 0x100 irq 168
  [   13.750097] ata4: SATA max UDMA/133 mmio [mem 0x1a800000-0x1a800fff] port 0x180 irq 168
  [   13.886067] PTP clock support registered
  [   13.894350] tg3.c:v3.137 (May 11, 2014)
  [   13.898245] Unhandled fault: synchronous external abort (0x96000010) at 0xffffff8000cc4000
  [   13.906472] Internal error: : 96000010 [#1] SMP
  [   13.910979] Modules linked in: tg3(+) ptp ahci_xgene realtek libahci_platform libahci xgene_enet pps_core aes_neon_blk ablk_helper cryptd
  [   13.923391] CPU: 3 PID: 142 Comm: systemd-udevd Not tainted 3.16.0-33-generic #44-Ubuntu
  [   13.931439] task: ffffffc3e81ebd40 ti: ffffffc0fe704000 task.ti: ffffffc0fe704000
  [   13.938886] PC is at tg3_read32+0x24/0x38 [tg3]
  [   13.943395] LR is at tg3_get_invariants+0x5e8/0x2e54 [tg3]
  [   13.948850] pc : [<ffffffbffc07c064>] lr : [<ffffffbffc090db4>] pstate: 80000145
  [   13.956206] sp : ffffffc0fe707930
  [   13.959500] x29: ffffffc0fe707930 x28: 0000000000000000
  [   13.964804] x27: ffffffc000aec000 x26: ffffffc0fe707e48
  [   13.970106] x25: 0000000000000007 x24: ffffffc3df6508c0
  [   13.975407] x23: ffffffbffc09a000 x22: ffffffbffc07e88c
  [   13.980710] x21: ffffffbffc09c290 x20: ffffffc3df6508c0
  [   13.986013] x19: 0000000000004000 x18: ffffffc0007802f8
  [   13.991316] x17: ffffffc0fe707ab0 x16: 00564afbbf17bf1f
  [   13.996618] x15: ffffffffffffffff x14: 0ffffffffffffffd
  [   14.001920] x13: ffffffbced8de1a0 x12: ffffff8000ccffff
  [   14.007222] x11: ffffff8000ccffff x10: 0000000040000000
  [   14.012523] x9 : ffffffc000b82000 x8 : 0000000000000000
  [   14.017826] x7 : 000000000000ffda x6 : 0000000000000000
  [   14.023128] x5 : 0000000000000001 x4 : ffffffc0fe4cb000
  [   14.028430] x3 : 0000000000200000 x2 : ffffffbffc07c040
  [   14.033731] x1 : 0000000000004000 x0 : ffffff8000cc4000
  [   14.039033]
  [   14.040514] Process systemd-udevd (pid: 142, stack limit = 0xffffffc0fe704058)
  [   14.047698] Stack: (0xffffffc0fe707930 to 0xffffffc0fe708000)
  [   14.053414] 7920:                                     fe707950 ffffffc0 fc090db4 ffffffbf
  [   14.061549] 7940: df6508c0 ffffffc3 df6515c8 ffffffc3 fe7079e0 ffffffc0 fc09383c ffffffbf
  [   14.069683] 7960: fc09c290 ffffffbf df650000 ffffffc3 f03fc000 ffffffc3 f03fc098 ffffffc3
  [   14.077818] 7980: fc09a000 ffffffbf df6508c0 ffffffc3 00000007 00000000 00010000 00000000
  [   14.085952] 79a0: 00000707 00600000 003fea74 ffffffc0 014679e0 a2000000 00000212 ffffffbf
  [   14.094087] 79c0: fc09c290 ffffffbf fc0936b0 ffffffbf fc09c290 ffffffbf 00000005 00000040
  [   14.096125] ata4: SATA link down (SStatus 0 SControl 4300)
  [   14.096128] ata2: SATA link down (SStatus 0 SControl 4300)
  [   14.113129] 79e0: fe707a80 ffffffc0 fc094cec ffffffbf 00000000 00000000 f03fc000 ffffffc3
  [   14.121263] 7a00: fc09c290 ffffffbf fc09e8c8 ffffffbf fc09c290 ffffffbf 00000000 00000000
  [   14.129398] 7a20: 00000007 00000000 fe707e48 ffffffc0 00aec000 ffffffc0 00000000 00000000
  [   14.137532] 7a40: f03fc000 ffffffc3 df651000 ffffffc3 fc09e000 ffffffbf 00000001 20080000
  [   14.145667] 7a60: fe707a80 ffffffc0 fc094cd8 ffffffbf f03fc098 ffffffc3 fe5b5180 ffffffc0
  [   14.153801] 7a80: fe707ab0 ffffffc0 00402e44 ffffffc0 f03fc098 ffffffc3 fc09e930 ffffffbf
  [   14.161935] 7aa0: f03fc000 ffffffc3 fc09e8c8 ffffffbf fe707af0 ffffffc0 0049e2b4 ffffffc0
  [   14.170070] 7ac0: f03fc098 ffffffc3 00c27000 ffffffc0 00b75000 ffffffc0 00000000 00000000
  [   14.178204] 7ae0: fc09e930 ffffffbf 00402c58 ffffffc0 fe707b40 ffffffc0 0049e6d4 ffffffc0
  [   14.186339] 7b00: f03fc098 ffffffc3 fc09e930 ffffffbf f03fc0f8 ffffffc3 00000000 00000000
  [   14.194473] 7b20: 00b33000 ffffffc0 00000000 00000000 00000000 00000000 fc09e930 ffffffbf
  [   14.202608] 7b40: fe707b70 ffffffc0 0049c0fc ffffffc0 00000000 00000000 fc09e930 ffffffbf
  [   14.210742] 7b60: 0049e628 ffffffc0 00000000 00000000 fe707bc0 ffffffc0 0049dcb4 ffffffc0
  [   14.218876] 7b80: fc09e930 ffffffbf dfa66300 ffffffc3 00b25090 ffffffc0 ffffffe0 00000000
  [   14.227011] 7ba0: fe707bc0 ffffffc0 00000000 00000000 f03c3ea8 ffffffc3 fe549ea8 ffffffc0
  [   14.235145] 7bc0: fe707be0 ffffffc0 0049d870 ffffffc0 fc09e930 ffffffbf fc09e930 ffffffbf
  [   14.243280] 7be0: fe707c20 ffffffc0 0049ef80 ffffffc0 fc09e930 ffffffbf 00ad07e0 ffffffc0
  [   14.251414] 7c00: df6444c0 ffffffc3 fc0a3000 ffffffbf fe704000 ffffffc0 00b25090 ffffffc0
  [   14.259548] 7c20: fe707c40 ffffffc0 004026ac ffffffc0 fc09e8c8 ffffffbf 00ad07e0 ffffffc0
  [   14.267683] 7c40: fe707c70 ffffffc0 fc0a3028 ffffffbf 00ad07e0 ffffffc0 00081568 ffffffc0
  [   14.275817] 7c60: fc09ea60 ffffffbf fc09ce30 ffffffbf fe707c80 ffffffc0 00081578 ffffffc0
  [   14.283951] 7c80: fe707d00 ffffffc0 00124a7c ffffffc0 00aec508 ffffffc0 fc09ea78 ffffffbf
  [   14.292086] 7ca0: fe704000 ffffffc0 fe707e70 ffffffc0 fc09ea60 ffffffbf fe707e48 ffffffc0
  [   14.300220] 7cc0: 00c73000 ffffff80 fc09ea78 ffffffbf fe704000 ffffffc0 fe707e48 ffffffc0
  [   14.308354] 7ce0: fe707d00 ffffffc0 00124a5c ffffffc0 00aec508 ffffffc0 dfab7f40 ffffffc3
  [   14.316488] 7d00: fe707e40 ffffffc0 00124f5c ffffffc0 00000000 00000000 00000008 00000000
  [   14.324623] 7d20: b05b5cf8 0000007f b0518b74 0000007f 60000000 00000000 00000015 00000000
  [   14.332757] 7d40: 00000116 00000000 00000111 00000000 00ad4000 ffffffc0 fe704000 ffffffc0
  [   14.340892] 7d60: fe707de0 ffffffc0 00b70148 ffffffc0 00b703c8 ffffffc0 00000076 ffffffbf
  [   14.349026] 7d80: 00000064 ffffffc0 00000072 ffffffc0 0000006e ffffffc0 00124f34 0000003f
  [   14.357160] 7da0: 0000feff 00000000 00000018 ffffffc0 fc0a3030 ffffffbf b0518b74 0000007f
  [   14.365295] 7dc0: 60000000 00000000 00000015 00000000 00adc338 ffffffc0 0000046b 00000000
  [   14.373429] 7de0: 00000001 ffff81a4 00000001 00000000 00000000 00000000 00000000 00000000
  [   14.381563] 7e00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
  [   14.389697] 7e20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
  [   14.397832] 7e40: d621f270 0000007f 0008521c ffffffc0 00000000 00000000 00000000 00000000
  [   14.405966] 7e60: ffffffff ffffffff 00000008 00000000 00c73000 ffffff80 0003bb20 00000000
  [   14.414100] 7e80: 00cae3e0 ffffff80 00c99860 ffffff80 00c9cec8 ffffff80 00022cb0 00000000
  [   14.422234] 7ea0: 00024660 00000000 00000000 00000000 00000000 00000001 0000001b 0000001c
  [   14.430369] 7ec0: 00000013 0000000f 0000000b 00000000 00000008 00000000 b05b5cf8 0000007f
  [   14.438503] 7ee0: 00000000 00000000 00000008 00000000 00000000 00000000 00000000 00000000
  [   14.446637] 7f00: 00000001 00000000 00000001 00000000 00000111 00000000 2f2f2f75 4433302f
  [   14.454771] 7f20: 00000000 00000000 00000003 00000000 00000004 00000000 00000020 00000000
  [   14.462906] 7f40: 2f6d6f63 2e336774 b058a590 0000007f b05c81d0 0000007f b0518b50 0000007f
  [   14.471040] 7f60: d621efd0 0000007f 251375f0 00000000 00000000 00000000 b05b5cf8 0000007f
  [   14.479174] 7f80: 00020000 00000000 0042bf38 00000000 25137190 00000000 2512fa40 00000000
  [   14.487309] 7fa0: 00000000 00000000 00000000 00000000 00020000 00000000 d621f270 0000007f
  [   14.495443] 7fc0: b05af934 0000007f d621f270 0000007f b0518b74 0000007f 60000000 00000000
  [   14.503578] 7fe0: 00000008 00000000 00000111 00000000 00000000 00000000 00000000 00000000
  [   14.511711] Call trace:
  [   14.514146] [<ffffffbffc07c064>] tg3_read32+0x24/0x38 [tg3]
  [   14.519691] [<ffffffbffc090db0>] tg3_get_invariants+0x5e4/0x2e54 [tg3]
  [   14.526185] [<ffffffbffc093838>] tg3_init_one.part.124+0x218/0x1684 [tg3]
  [   14.532939] [<ffffffbffc094ce8>] tg3_init_one+0x44/0xa0 [tg3]
  [   14.538657] [<ffffffc000402e40>] pci_device_probe+0x94/0xfc
  [   14.544201] [<ffffffc00049e2b0>] driver_probe_device+0xa4/0x3c0
  [   14.550089] [<ffffffc00049e6d0>] __driver_attach+0xa8/0xb0
  [   14.555545] [<ffffffc00049c0f8>] bus_for_each_dev+0x68/0xac
  [   14.561087] [<ffffffc00049dcb0>] driver_attach+0x28/0x34
  [   14.566370] [<ffffffc00049d86c>] bus_add_driver+0x16c/0x248
  [   14.571912] [<ffffffc00049ef7c>] driver_register+0x64/0x124
  [   14.577454] [<ffffffc0004026a8>] __pci_register_driver+0x5c/0x6c
  [   14.583431] [<ffffffbffc0a3024>] $x+0x24/0x30 [tg3]
  [   14.588283] [<ffffffc000081574>] do_one_initcall+0xcc/0x1b0
  [   14.593826] [<ffffffc000124a78>] load_module+0xf30/0x1250
  [   14.599196] [<ffffffc000124f58>] SyS_finit_module+0x94/0xc4
  [   14.604738] Code: 2a0103f3 d503201f f9401a80 8b334000 (b9400000)
  [   14.610810] ---[ end trace 90f85cbd24bd66d3 ]---

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References