Hi, While booting 3.10 on AM355x-evmsk with following steps seeing race condition leading to SPIN BUG: Attached log for reference.
Config: omap2plus_defconfig. make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage -j 8 LOADADDR=0x80008000 make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- am335x-evmsk.dtb cat arch/arm/boot/zImage arch/arm/boot/dts/am335x-evmsk.dtb > zImage mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n "Linux" -d zImage uImage [ 2.359689] cpsw: platform data missing [ 2.364835] BUG: spinlock bad magic on CPU#0, swapper/0/1 [ 2.370537] lock: 0xce11021c, .magic: 00000000, .owner: /0, .owner_cpu: 3 [ 2.377767] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-dirty #10 [ 2.384662] [<c001bf38>] (unwind_backtrace+0x0/0xf4) from [<c0018650>] (show_stack+0x10/0x14) [ 2.393639] [<c0018650>] (show_stack+0x10/0x14) from [<c02ec380>] (do_raw_spin_lock+0x1b8/0x1f8) [ 2.402896] [<c02ec380>] (do_raw_spin_lock+0x1b8/0x1f8) from [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) [ 2.413243] [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) from [<c035d3d0>] (devres_remove+0x20/0x80) [ 2.423125] [<c035d3d0>] (devres_remove+0x20/0x80) from [<c035d440>] (devres_release+0x10/0x38) [ 2.432273] [<c035d440>] (devres_release+0x10/0x38) from [<c02fa718>] (devm_pinctrl_put+0x18/0x40) [ 2.441699] [<c02fa718>] (devm_pinctrl_put+0x18/0x40) from [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) [ 2.451397] [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) from [<c035a588>] (driver_probe_device+0x60/0x224) [ 2.461462] [<c035a588>] (driver_probe_device+0x60/0x224) from [<c035a7e0>] (__driver_attach+0x94/0x98) [ 2.471343] [<c035a7e0>] (__driver_attach+0x94/0x98) from [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) [ 2.480857] [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) from [<c0359714>] (bus_add_driver+0x208/0x2a4) [ 2.490462] [<c0359714>] (bus_add_driver+0x208/0x2a4) from [<c035adb4>] (driver_register+0x78/0x194) [ 2.500067] [<c035adb4>] (driver_register+0x78/0x194) from [<c0008684>] (do_one_initcall+0x30/0x168) [ 2.509682] [<c0008684>] (do_one_initcall+0x30/0x168) from [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) [ 2.519745] [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) from [<c05454cc>] (kernel_init+0x8/0xe4) [ 2.529268] [<c05454cc>] (kernel_init+0x8/0xe4) from [<c00142e8>] (ret_from_fork+0x14/0x2c) [ 11.974206] BUG: spinlock lockup suspected on CPU#0, swapper/0/1 [ 11.980519] lock: 0xce11021c, .magic: 00000000, .owner: /0, .owner_cpu: 3 [ 11.987744] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-dirty #10 [ 11.994612] [<c001bf38>] (unwind_backtrace+0x0/0xf4) from [<c0018650>] (show_stack+0x10/0x14) [ 12.003577] [<c0018650>] (show_stack+0x10/0x14) from [<c02ec338>] (do_raw_spin_lock+0x170/0x1f8) [ 12.012818] [<c02ec338>] (do_raw_spin_lock+0x170/0x1f8) from [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) [ 12.023155] [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) from [<c035d3d0>] (devres_remove+0x20/0x80) [ 12.033033] [<c035d3d0>] (devres_remove+0x20/0x80) from [<c035d440>] (devres_release+0x10/0x38) [ 12.042179] [<c035d440>] (devres_release+0x10/0x38) from [<c02fa718>] (devm_pinctrl_put+0x18/0x40) [ 12.051600] [<c02fa718>] (devm_pinctrl_put+0x18/0x40) from [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) [ 12.061294] [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) from [<c035a588>] (driver_probe_device+0x60/0x224) [ 12.071352] [<c035a588>] (driver_probe_device+0x60/0x224) from [<c035a7e0>] (__driver_attach+0x94/0x98) [ 12.081228] [<c035a7e0>] (__driver_attach+0x94/0x98) from [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) [ 12.090738] [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) from [<c0359714>] (bus_add_driver+0x208/0x2a4) [ 12.100339] [<c0359714>] (bus_add_driver+0x208/0x2a4) from [<c035adb4>] (driver_register+0x78/0x194) [ 12.109940] [<c035adb4>] (driver_register+0x78/0x194) from [<c0008684>] (do_one_initcall+0x30/0x168) [ 12.119545] [<c0008684>] (do_one_initcall+0x30/0x168) from [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) [ 12.129602] [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) from [<c05454cc>] (kernel_init+0x8/0xe4) [ 12.139112] [<c05454cc>] (kernel_init+0x8/0xe4) from [<c00142e8>] (ret_from_fork+0x14/0x2c) Regards, Ambresh
U-Boot 2012.10 (Jul 02 2013 - 10:41:19) I2C: ready DRAM: 256 MiB WARNING: Caches not enabled NAND: No NAND device found!!! 0 MiB MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 *** Warning - readenv() failed, using default environment musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn) musb-hdrc: MHDRC RTL version 2.0 musb-hdrc: setup fifo_mode 4 musb-hdrc: 28/31 max ep, 16384/16384 memory USB Peripheral mode controller at 47401000 using PIO, IRQ 0 musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn) musb-hdrc: MHDRC RTL version 2.0 musb-hdrc: setup fifo_mode 4 musb-hdrc: 28/31 max ep, 16384/16384 memory USB Host mode controller at 47401800 using PIO, IRQ 0 Net: cpsw, usb_ether Hit any key to stop autoboot: 0 U-Boot# U-Boot# U-Boot# U-Boot# U-Boot# setenv bootargs console=ttyO0,115200n8 root=/dev/ram0 rw ramdisk_size=64413 initrd=0x81600000,64M no_console_suspend U-Boot# fatload mmc 0 0x81600000 ramdisk-pm.gz; fatload mmc 0 0x80300000 uimage; bootm 0x80300000 reading ramdisk-pm.gz 2022580 bytes read reading uimage 4390952 bytes read ## Booting kernel from Legacy Image at 80300000 ... Image Name: Linux Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4390888 Bytes = 4.2 MiB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.10.0-dirty (a0393775@ula0393775) (gcc version 4.4.1 (Sourcery G++ Lite 2010q1-202) ) #10 SMP Tue Jul 2 17:19:30 IST 2013 [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine: Generic AM33XX (Flattened Device Tree), model: TI AM335x EVM-SK [ 0.000000] cma: CMA: reserved 16 MiB at 8e800000 [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] AM335X ES2.1 (neon ) [ 0.000000] PERCPU: Embedded 9 pages/cpu @c0fc8000 s13632 r8192 d15040 u36864 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64768 [ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/ram0 rw ramdisk_size=64413 initrd=0x81600000,64M no_console_suspend [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] Memory: 255MB = 255MB total [ 0.000000] Memory: 162768k/162768k available, 99376k reserved, 0K highmem [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc075b260 (7501 kB) [ 0.000000] .init : 0xc075c000 - 0xc07be540 ( 394 kB) [ 0.000000] .data : 0xc07c0000 - 0xc0856408 ( 602 kB) [ 0.000000] .bss : 0xc0856408 - 0xc0dba8e0 (5522 kB) [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts [ 0.000000] Total of 128 interrupts on 1 active controller [ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz [ 0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms [ 0.000000] OMAP clocksource: timer1 at 24000000 Hz [ 0.000000] Console: colour dummy device 80x30 [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768 [ 0.000000] ... CHAINHASH_SIZE: 16384 [ 0.000000] memory used by lock dependency info: 3695 kB [ 0.000000] per task-struct memory footprint: 1152 bytes [ 0.001046] Calibrating delay loop... 476.77 BogoMIPS (lpj=2383872) [ 0.119668] pid_max: default: 32768 minimum: 301 [ 0.120181] Security Framework initialized [ 0.120341] Mount-cache hash table entries: 512 [ 0.131989] CPU: Testing write buffer coherency: ok [ 0.133549] CPU0: thread -1, cpu 0, socket -1, mpidr 0 [ 0.133633] Setting up static identity map for 0xc0554688 - 0xc05546f8 [ 0.136755] Brought up 1 CPUs [ 0.136780] SMP: Total of 1 processors activated (476.77 BogoMIPS). [ 0.136792] CPU: All CPU(s) started in SVC mode. [ 0.140055] devtmpfs: initialized [ 0.214310] pinctrl core: initialized pinctrl subsystem [ 0.218999] regulator-dummy: no parameters [ 0.222983] NET: Registered protocol family 16 [ 0.231414] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.254858] OMAP GPIO hardware version 0.1 [ 0.279489] No ATAGs? [ 0.279520] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.346184] bio: create slab <bio-0> at 0 [ 0.351901] vbat: 5000 mV [ 0.353124] lis3_reg: no parameters [ 0.360906] SCSI subsystem initialized [ 0.363224] usbcore: registered new interface driver usbfs [ 0.363722] usbcore: registered new interface driver hub [ 0.364567] usbcore: registered new device driver usb [ 0.366632] omap_i2c 44e0b000.i2c: did not get pins for i2c error: -19 [ 0.368841] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz [ 0.371673] tps65910 0-002d: No interrupt support, no core IRQ [ 0.377529] vrtc: 1800 mV [ 0.377955] vrtc: supplied by vbat [ 0.381841] vio: at 1500 mV [ 0.382002] vio: supplied by vbat [ 0.385095] vdd_mpu: 912 <--> 1312 mV at 1262 mV [ 0.385249] vdd_mpu: supplied by vbat [ 0.388273] vdd_core: 912 <--> 1150 mV at 1137 mV [ 0.388420] vdd_core: supplied by vbat [ 0.391229] vdd3: 5000 mV [ 0.393699] vdig1: at 1800 mV [ 0.393843] vdig1: supplied by vbat [ 0.396566] vdig2: at 1800 mV [ 0.396705] vdig2: supplied by vbat [ 0.399416] vpll: at 1800 mV [ 0.399553] vpll: supplied by vbat [ 0.402455] vdac: at 1800 mV [ 0.402618] vdac: supplied by vbat [ 0.405242] vaux1: at 1800 mV [ 0.405382] vaux1: supplied by vbat [ 0.408105] vaux2: at 3300 mV [ 0.408271] vaux2: supplied by vbat [ 0.411267] vaux33: at 3300 mV [ 0.411415] vaux33: supplied by vbat [ 0.414092] vmmc: at 3300 mV [ 0.414254] vmmc: supplied by vbat [ 0.426233] Switching to clocksource timer1 [ 0.568841] NET: Registered protocol family 2 [ 0.571034] TCP established hash table entries: 2048 (order: 2, 16384 bytes) [ 0.571258] TCP bind hash table entries: 2048 (order: 4, 73728 bytes) [ 0.572213] TCP: Hash tables configured (established 2048 bind 2048) [ 0.572436] TCP: reno registered [ 0.572475] UDP hash table entries: 256 (order: 2, 20480 bytes) [ 0.572738] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes) [ 0.574107] NET: Registered protocol family 1 [ 0.575708] RPC: Registered named UNIX socket transport module. [ 0.575733] RPC: Registered udp transport module. [ 0.575746] RPC: Registered tcp transport module. [ 0.575758] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.577019] Trying to unpack rootfs image as initramfs... [ 0.579171] rootfs image is not initramfs (no cpio magic); looks like an initrd [ 1.021655] Freeing initrd memory: 65536K (c1600000 - c5600000) [ 1.021842] NetWinder Floating Point Emulator V0.97 (double precision) [ 1.219409] VFS: Disk quotas dquot_6.5.2 [ 1.219665] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 1.222489] NFS: Registering the id_resolver key type [ 1.222980] Key type id_resolver registered [ 1.223003] Key type id_legacy registered [ 1.223156] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 1.223756] msgmni has been set to 477 [ 1.227535] io scheduler noop registered [ 1.227562] io scheduler deadline registered [ 1.227666] io scheduler cfq registered (default) [ 1.229234] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568 [ 1.233961] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.241344] omap_uart 44e09000.serial: did not get pins for uart0 error: -19 [ 1.242262] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88) is a OMAP UART0 [ 1.948967] console [ttyO0] enabled [ 1.987501] brd: module loaded [ 2.012066] loop: module loaded [ 2.021427] mtdoops: mtd device (mtddev=name/number) must be supplied [ 2.035971] usbcore: registered new interface driver asix [ 2.042657] usbcore: registered new interface driver ax88179_178a [ 2.051197] usbcore: registered new interface driver cdc_ether [ 2.058131] usbcore: registered new interface driver smsc95xx [ 2.064644] usbcore: registered new interface driver net1080 [ 2.071323] usbcore: registered new interface driver cdc_subset [ 2.078228] usbcore: registered new interface driver zaurus [ 2.084675] usbcore: registered new interface driver cdc_ncm [ 2.093084] usbcore: registered new interface driver cdc_wdm [ 2.099788] usbcore: registered new interface driver usb-storage [ 2.106758] usbcore: registered new interface driver usbtest [ 2.115100] mousedev: PS/2 mouse device common for all mice [ 2.127933] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0 [ 2.135460] 44e3e000.rtc: already running [ 2.141107] i2c /dev entries driver [ 2.147561] Driver for 1-wire Dallas network protocol. [ 2.158055] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec [ 2.169434] leds-gpio leds.5: pins are not configured from the driver [ 2.182533] ledtrig-cpu: registered to indicate activity on CPUs [ 2.190918] usbcore: registered new interface driver usbhid [ 2.196941] usbhid: USB HID core driver [ 2.202582] oprofile: no performance counters [ 2.209988] oprofile: using timer interrupt. [ 2.215285] TCP: cubic registered [ 2.218980] Initializing XFRM netlink socket [ 2.223692] NET: Registered protocol family 17 [ 2.228531] NET: Registered protocol family 15 [ 2.233631] Key type dns_resolver registered [ 2.238346] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3 [ 2.246518] ThumbEE CPU extension supported. [ 2.316768] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6 [ 2.323207] davinci_mdio 4a101000.mdio: detected phy mask fffffffc [ 2.333722] libphy: 4a101000.mdio: probed [ 2.338091] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver unknown [ 2.346510] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver unknown [ 2.355135] Missing slave[0] phy_id property [ 2.359689] cpsw: platform data missing [ 2.364835] BUG: spinlock bad magic on CPU#0, swapper/0/1 [ 2.370537] lock: 0xce11021c, .magic: 00000000, .owner: /0, .owner_cpu: 3 [ 2.377767] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-dirty #10 [ 2.384662] [<c001bf38>] (unwind_backtrace+0x0/0xf4) from [<c0018650>] (show_stack+0x10/0x14) [ 2.393639] [<c0018650>] (show_stack+0x10/0x14) from [<c02ec380>] (do_raw_spin_lock+0x1b8/0x1f8) [ 2.402896] [<c02ec380>] (do_raw_spin_lock+0x1b8/0x1f8) from [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) [ 2.413243] [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) from [<c035d3d0>] (devres_remove+0x20/0x80) [ 2.423125] [<c035d3d0>] (devres_remove+0x20/0x80) from [<c035d440>] (devres_release+0x10/0x38) [ 2.432273] [<c035d440>] (devres_release+0x10/0x38) from [<c02fa718>] (devm_pinctrl_put+0x18/0x40) [ 2.441699] [<c02fa718>] (devm_pinctrl_put+0x18/0x40) from [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) [ 2.451397] [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) from [<c035a588>] (driver_probe_device+0x60/0x224) [ 2.461462] [<c035a588>] (driver_probe_device+0x60/0x224) from [<c035a7e0>] (__driver_attach+0x94/0x98) [ 2.471343] [<c035a7e0>] (__driver_attach+0x94/0x98) from [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) [ 2.480857] [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) from [<c0359714>] (bus_add_driver+0x208/0x2a4) [ 2.490462] [<c0359714>] (bus_add_driver+0x208/0x2a4) from [<c035adb4>] (driver_register+0x78/0x194) [ 2.500067] [<c035adb4>] (driver_register+0x78/0x194) from [<c0008684>] (do_one_initcall+0x30/0x168) [ 2.509682] [<c0008684>] (do_one_initcall+0x30/0x168) from [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) [ 2.519745] [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) from [<c05454cc>] (kernel_init+0x8/0xe4) [ 2.529268] [<c05454cc>] (kernel_init+0x8/0xe4) from [<c00142e8>] (ret_from_fork+0x14/0x2c) [ 11.974206] BUG: spinlock lockup suspected on CPU#0, swapper/0/1 [ 11.980519] lock: 0xce11021c, .magic: 00000000, .owner: /0, .owner_cpu: 3 [ 11.987744] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-dirty #10 [ 11.994612] [<c001bf38>] (unwind_backtrace+0x0/0xf4) from [<c0018650>] (show_stack+0x10/0x14) [ 12.003577] [<c0018650>] (show_stack+0x10/0x14) from [<c02ec338>] (do_raw_spin_lock+0x170/0x1f8) [ 12.012818] [<c02ec338>] (do_raw_spin_lock+0x170/0x1f8) from [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) [ 12.023155] [<c054e7a8>] (_raw_spin_lock_irqsave+0x4c/0x58) from [<c035d3d0>] (devres_remove+0x20/0x80) [ 12.033033] [<c035d3d0>] (devres_remove+0x20/0x80) from [<c035d440>] (devres_release+0x10/0x38) [ 12.042179] [<c035d440>] (devres_release+0x10/0x38) from [<c02fa718>] (devm_pinctrl_put+0x18/0x40) [ 12.051600] [<c02fa718>] (devm_pinctrl_put+0x18/0x40) from [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) [ 12.061294] [<c0370470>] (pinctrl_bind_pins+0x84/0xb8) from [<c035a588>] (driver_probe_device+0x60/0x224) [ 12.071352] [<c035a588>] (driver_probe_device+0x60/0x224) from [<c035a7e0>] (__driver_attach+0x94/0x98) [ 12.081228] [<c035a7e0>] (__driver_attach+0x94/0x98) from [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) [ 12.090738] [<c0358dd0>] (bus_for_each_dev+0x68/0x8c) from [<c0359714>] (bus_add_driver+0x208/0x2a4) [ 12.100339] [<c0359714>] (bus_add_driver+0x208/0x2a4) from [<c035adb4>] (driver_register+0x78/0x194) [ 12.109940] [<c035adb4>] (driver_register+0x78/0x194) from [<c0008684>] (do_one_initcall+0x30/0x168) [ 12.119545] [<c0008684>] (do_one_initcall+0x30/0x168) from [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) [ 12.129602] [<c075c308>] (kernel_init_freeable+0xf4/0x1c0) from [<c05454cc>] (kernel_init+0x8/0xe4) [ 12.139112] [<c05454cc>] (kernel_init+0x8/0xe4) from [<c00142e8>] (ret_from_fork+0x14/0x2c)
