Arun Bharadwaj <arun@xxxxxxxxxxx> writes:
> These 3 patches are included to fix the following issues
> with pepper device tree source. The patches are based against
> linux-omap/master.
I tested this series on top of linus/master with omap2plus_defconfig and
it seems to successfully boot now (used to hang after disabling
vdd_mpu.)
However, it still hangs during boot when testing with multi_v7_defconfig
(boot log below.)
Anyways, it's a step in the right direction. Feel free to add
Tested-by: Kevin Hilman <khilman@xxxxxxxxxx>
Kevin
[1] full console log: linus/master, mutli_v7_defconfig + $SUBJECT series:
Connected to pepper console [channel connected] (~$quit to exit)
(user:khilman) is already connected
# PYBOOT: console: connected.
~$hardreset
Command(pepper console)> hardreset
(user:khilman) Reboot pepper
U-Boot SPL 2014.10 (Feb 24 2015 - 21:56:40)
Booting with DDR
reading u-boot.img
reading u-boot.img
U-Boot 2014.10 (Feb 24 2015 - 21:56:40)
AM335X-GP rev 1.0
Watchdog enabled
I2C: ready
DRAM: 512 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment
Net: cpsw
Hit any key to stop autoboot: 1
# PYBOOT: u-boot: taking control.
0
pepper#
pepper# version
version
U-Boot 2014.10 (Feb 24 2015 - 21:56:40)
arm-poky-linux-gnueabi-gcc (GCC) 4.9.1
GNU ld (GNU Binutils) 2.24
pepper# if test -n ${initenv}; then run initenv; fi
if test -n ${initenv}; then run initenv; fi
pepper# if test -n ${preboot}; then run preboot; fi
if test -n ${preboot}; then run preboot; fi
pepper# setenv autoload no; setenv autoboot no
setenv autoload no; setenv autoboot no
pepper# dhcp
dhcp
cpsw Waiting for PHY auto negotiation to complete... done
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
BOOTP broadcast 2
DHCP client bound to address 192.168.1.190 (322 ms)
pepper# setenv serverip 192.168.1.2
setenv serverip 192.168.1.2
pepper# if test -n ${netargs}; then run netargs; fi
if test -n ${netargs}; then run netargs; fi
pepper# tftp 0x81000000 192.168.1.2:tmp/pepper-B3cJIV/zImage
tftp 0x81000000 192.168.1.2:tmp/pepper-B3cJIV/zImage
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.1.2; our IP address is 192.168.1.190
Filename 'tmp/pepper-B3cJIV/zImage'.
Load address: 0x81000000
Loading: *#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#############################
2.8 MiB/s
done
Bytes transferred = 6146272 (5dc8e0 hex)
pepper# tftp 0x82000000 192.168.1.2:tmp/pepper-B3cJIV/rootfs.cpio.gz
tftp 0x82000000 192.168.1.2:tmp/pepper-B3cJIV/rootfs.cpio.gz
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.1.2; our IP address is 192.168.1.190
Filename 'tmp/pepper-B3cJIV/rootfs.cpio.gz'.
Load address: 0x82000000
Loading: *#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#############
2.7 MiB/s
done
Bytes transferred = 4956631 (4ba1d7 hex)
pepper#tftp 0x81f00000 192.168.1.2:tmp/pepper-B3cJIV/tmpW6fNjj.dtb
tftp 0x81f00000 192.168.1.2:tmp/pepper-B3cJIV/tmpW6fNjj.dtb
link up on port 0, speed 100, full duplex
Using cpsw device
TFTP from server 192.168.1.2; our IP address is 192.168.1.190
Filename 'tmp/pepper-B3cJIV/tmpW6fNjj.dtb'.
Load address: 0x81f00000
Loading: *###
2.5 MiB/s
done
Bytes transferred = 33734 (83c6 hex)
pepper# printenv bootargs
printenv bootargs
## Error: "bootargs" not defined
pepper# bootz 0x81000000 - 0x81f00000
# PYBOOT: u-boot: jumping to kernel image
bootz 0x81000000 - 0x81f00000
Kernel image @ 0x81000000 [ 0x000000 - 0x5dc8e0 ]
## Flattened Device Tree blob at 81f00000
Booting using the fdt blob at 0x81f00000
Loading Device Tree to 8fff4000, end 8ffff3c5 ... OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.2.0-rc2-00080-g9ea52aaed426 (khilman@paris) (gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-12ubuntu1) ) #6 SMP Tue Jul 14 05:13:16 PDT 2015
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: Gumstix Pepper
[ 0.000000] cma: Reserved 64 MiB at 0x9b800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES1.0 (sgx neon )
[ 0.000000] PERCPU: Embedded 11 pages/cpu @dfaa4000 s14784 r8192 d22080 u45056
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129792
[ 0.000000] Kernel command line: console=ttyO0,115200n8 earlyprintk
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Memory: 434372K/523264K available (7778K kernel code, 1038K rwdata, 3512K rodata, 944K init, 327K bss, 23356K reserved, 65536K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0208000 - 0xc0d0f960 (11295 kB)
[ 0.000000] .init : 0xc0d10000 - 0xc0dfc000 ( 944 kB)
[ 0.000000] .data : 0xc0dfc000 - 0xc0effa80 (1039 kB)
[ 0.000000] .bss : 0xc0f02000 - 0xc0f53c28 ( 328 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] Additional per-CPU info printed with stalls.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] RCU restricting CPUs from NR_CPUS=16 to nr_cpu_ids=1.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, 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] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000018] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000048] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000064] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000335] Console: colour dummy device 80x30
[ 0.000384] Calibrating delay loop... 548.04 BogoMIPS (lpj=1370112)
[ 0.073895] pid_max: default: 32768 minimum: 301
[ 0.074102] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.074121] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.075253] CPU: Testing write buffer coherency: ok
[ 0.075706] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[ 0.075846] Setting up static identity map for 0x80209000 - 0x80209098
[ 0.079622] Brought up 1 CPUs
[ 0.079648] SMP: Total of 1 processors activated (548.04 BogoMIPS).
[ 0.079660] CPU: All CPU(s) started in SVC mode.
[ 0.080426] devtmpfs: initialized
[ 0.096971] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.116040] omap_hwmod: tptc0 using broken dt data from edma
[ 0.116258] omap_hwmod: tptc1 using broken dt data from edma
[ 0.116456] omap_hwmod: tptc2 using broken dt data from edma
[ 0.122224] omap_hwmod: debugss: _wait_target_disable failed
[ 0.180068] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302231375000 ns
[ 0.186095] pinctrl core: initialized pinctrl subsystem
[ 0.189457] NET: Registered protocol family 16
[ 0.192853] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.196065] cpuidle: using governor ladder
[ 0.196099] cpuidle: using governor menu
[ 0.202031] OMAP GPIO hardware version 0.1
[ 0.220615] No ATAGs?
[ 0.220659] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.227077] Serial: AMBA PL011 UART driver
[ 0.258804] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[ 0.265009] vgaarb: loaded
[ 0.266352] SCSI subsystem initialized
[ 0.267328] usbcore: registered new interface driver usbfs
[ 0.267457] usbcore: registered new interface driver hub
[ 0.267559] usbcore: registered new device driver usb
[ 0.268790] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0, deferring probe
[ 0.268959] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c1, deferring probe
[ 0.270056] pps_core: LinuxPPS API ver. 1 registered
[ 0.270072] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx>
[ 0.270117] PTP clock support registered
[ 0.270442] EDAC MC: Ver: 3.0.0
[ 0.274823] clocksource: Switched to clocksource timer1
[ 0.292941] NET: Registered protocol family 2
[ 0.293934] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.294018] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.294122] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.294223] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 0.294259] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 0.294528] NET: Registered protocol family 1
[ 0.295194] RPC: Registered named UNIX socket transport module.
[ 0.295216] RPC: Registered udp transport module.
[ 0.295227] RPC: Registered tcp transport module.
[ 0.295237] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.296124] Unpacking initramfs...
[ 0.867384] Freeing initrd memory: 4844K (c2000000 - c24bb000)
[ 0.867971] hw perfevents: Failed to parse /pmu/interrupt-affinity[0]
[ 0.868064] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 0.871465] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 0.892259] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.893967] NFS: Registering the id_resolver key type
[ 0.894059] Key type id_resolver registered
[ 0.894071] Key type id_legacy registered
[ 0.894172] ntfs: driver 2.1.32 [Flags: R/O].
[ 0.896531] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 0.896570] io scheduler noop registered
[ 0.896589] io scheduler deadline registered
[ 0.896928] io scheduler cfq registered (default)
[ 0.902490] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 1.016905] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 1.020887] SuperH (H)SCI(F) driver initialized
[ 1.022138] msm_serial: driver initialized
[ 1.023049] omap_uart 44e09000.serial: no wakeirq for uart0
[ 1.023302] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 154, base_baud = 3000000) is a OMAP UART0
[ 1.697628] console [ttyO0] enabled
[ 1.702156] omap_uart 48022000.serial: no wakeirq for uart1
[ 1.708250] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 155, base_baud = 3000000) is a OMAP UART1
[ 1.718793] STMicroelectronics ASC driver initialized
[ 1.726659] [drm] Initialized drm 1.1.0 20060810
[ 1.743793] loop: module loaded
[ 1.759192] CAN device driver interface
[ 1.765030] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.2.18-k
[ 1.772471] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 1.782274] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver
[ 1.790237] usbcore: registered new interface driver pegasus
[ 1.796342] usbcore: registered new interface driver asix
[ 1.802141] usbcore: registered new interface driver ax88179_178a
[ 1.808655] usbcore: registered new interface driver cdc_ether
[ 1.814930] usbcore: registered new interface driver smsc75xx
[ 1.821131] usbcore: registered new interface driver smsc95xx
[ 1.827285] usbcore: registered new interface driver net1080
[ 1.833344] usbcore: registered new interface driver cdc_subset
[ 1.839675] usbcore: registered new interface driver zaurus
[ 1.845730] usbcore: registered new interface driver cdc_ncm
[ 1.854413] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.861369] ehci-pci: EHCI PCI platform driver
[ 1.866188] ehci-platform: EHCI generic platform driver
[ 1.872014] ehci-omap: OMAP-EHCI Host Controller driver
[ 1.877761] ehci-orion: EHCI orion driver
[ 1.882209] SPEAr-ehci: EHCI SPEAr driver
[ 1.886657] ehci-st: EHCI STMicroelectronics driver
[ 1.892010] ehci-exynos: EHCI EXYNOS driver
[ 1.896662] ehci-atmel: EHCI Atmel driver
[ 1.901111] tegra-ehci: Tegra EHCI driver
[ 1.905583] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.912149] ohci-pci: OHCI PCI platform driver
[ 1.916965] ohci-platform: OHCI generic platform driver
[ 1.922742] ohci-omap3: OHCI OMAP3 driver
[ 1.927201] SPEAr-ohci: OHCI SPEAr driver
[ 1.931672] ohci-st: OHCI STMicroelectronics driver
[ 1.937037] ohci-atmel: OHCI Atmel driver
[ 1.941626] usbcore: registered new interface driver usb-storage
[ 1.950401] mousedev: PS/2 mouse device common for all mice
[ 1.962268] i2c /dev entries driver
[ 1.975426] sdhci: Secure Digital Host Controller Interface driver
[ 1.981972] sdhci: Copyright(c) Pierre Ossman
[ 1.988073] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 1.993857] omap_hsmmc 48060000.mmc: unable to get vmmc regulator -517
[ 2.001590] 47810000.mmc supply vmmc not found, using dummy regulator
[ 2.008803] omap_hsmmc 47810000.mmc: could not set regulator OCR (-22)
[ 2.046285] Synopsys Designware Multimedia Card Interface Driver
[ 2.054141] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.063095] ledtrig-cpu: registered to indicate activity on CPUs
[ 2.070026] usbcore: registered new interface driver usbhid
[ 2.075915] usbhid: USB HID core driver
[ 2.084966] NET: Registered protocol family 17
[ 2.089686] can: controller area network core (rev 20120528 abi 9)
[ 2.096359] NET: Registered protocol family 29
[ 2.101079] can: raw protocol (rev 20120528)
[ 2.105597] can: broadcast manager protocol (rev 20120528 t)
[ 2.111580] can: netlink gateway (rev 20130117) max_hops=1
[ 2.118189] Key type dns_resolver registered
[ 2.122966] omap_voltage_late_init: Voltage driver support not added
[ 2.131238] ThumbEE CPU extension supported.
[ 2.135876] Registering SWP/SWPB emulation handler
[ 2.150362] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 2.158333] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 2.166392] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz
[ 2.174730] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 2.180169] omap_hsmmc 48060000.mmc: unable to get vmmc regulator -517
[ 2.229100] mmc0: new high speed SDIO card at address 0001
[ 2.244872] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 2.251312] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[ 2.266864] libphy: 4a101000.mdio: probed
[ 2.271233] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver Micrel KSZ9021 Gigabit PHY
[ 2.283796] cpsw 4a100000.ethernet: Detected MACID = 00:18:31:e1:31:00
[ 2.293974] input: user_buttons as /devices/platform/user_buttons/input/input0
[ 2.304363] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 2.309858] omap_hsmmc 48060000.mmc: unable to get vmmc regulator -517
[ 2.318674] hctosys: unable to open rtc device (rtc0)
[ 2.331330] platform 48060000.mmc: omap_device_late_idle: enabled but no driver. Idling
[ 2.340126] vdd5_reg: disabling
[ 2.343433] v3v3c_reg: disabling
[ 2.346879] vbat: disabling
[ 2.353231] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 2.358457] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa06012c
[ 2.
# PYBOOT: kernel: Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa06012c
366499] pgd = c0204000
[ 2.369339] [fa06012c] *pgd=48011452(bad)
[ 2.373571] Internal error: : 1028 [#1] SMP ARM
[ 2.378327] Modules linked in:
[ 2.381548] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 4.2.0-rc2-00080-g9ea52aaed426 #6
[ 2.390127] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 2.396547] Workqueue: deferwq deferred_probe_work_func
[ 2.402036] task: db0597c0 ti: db074000 task.ti: db074000
[ 2.407711] PC is at omap_hsmmc_probe+0x2b8/0xa14
[ 2.412665] LR is at rpm_idle+0x10/0x11c
[ 2.416784] pc : [<c081703c>] lr : [<c06170d0>] psr: a0000013
[ 2.416784] sp : db075e40 ip : 00000064 fp : fa060100
[ 2.428826] r10: db4e1300 r9 : 0000009e r8 : 00000000
[ 2.434308] r7 : db0e0410 r6 : db0e0400 r5 : 00000000 r4 : db4e1000
[ 2.441155] r3 : fa060100 r2 : 00000001 r1 : 00000008 r0 : fffffff5
[ 2.448006] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 2.455674] Control: 10c5387d Table: 9b4e8019 DAC: 00000015
[ 2.461703] Process kworker/u2:0 (pid: 6, stack limit = 0xdb074220)
[ 2.468278] Stack: (0xdb075e40 to 0xdb076000)
[ 2.472856] 5e40: db4737d0 db0e15f0 00000001 00000009 db0e15f0 db4737d0 c0c0a274 db0e15f0
[ 2.481441] 5e60: 00000001 ffffffef db0e0410 fffffdfb c0ec14dc 00000009 db02d000 00000001
[ 2.490026] 5e80: 00000002 c0610564 c061051c db0e0410 c0f41e24 00000000 c0ec14dc c060efa8
[ 2.498610] 5ea0: 00000000 db075ed0 c060f238 00000001 00000000 c060d6ac db02a970 db4740b8
[ 2.507195] 5ec0: db0e0410 db0e0444 c0ea13f0 c060ed68 db0e0410 00000001 00000000 db0e0410
[ 2.515780] 5ee0: db0e0410 c0ea13f0 db423b00 c060e524 db0e0410 c0ea1390 c0ea1378 c060e8fc
[ 2.524365] 5f00: db02d000 c0ea13ac db04f400 c025f260 dfaa43c0 db04f400 00000001 db04f414
[ 2.532951] 5f20: 00000001 db04f400 db02d018 00000088 db02d000 db04f400 00000002 c025f4c0
[ 2.541535] 5f40: db0597c0 db02b640 00000000 db02d000 c025f498 00000000 00000000 00000000
[ 2.550120] 5f60: 00000000 c0264618 db059300 00000000 ffa4e9fc db02d000 00000000 00000000
[ 2.558705] 5f80: db075f80 db075f80 00000000 00000000 db075f90 db075f90 db075fac db02b640
[ 2.567289] 5fa0: c0264540 00000000 00000000 c02109a8 00000000 00000000 00000000 00000000
[ 2.575873] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.584458] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 d79d5c5b baafffaa
[ 2.593070] [<c081703c>] (omap_hsmmc_probe) from [<c0610564>] (platform_drv_probe+0x48/0xa4)
[ 2.601936] [<c0610564>] (platform_drv_probe) from [<c060efa8>] (driver_probe_device+0x1c8/0x26c)
[ 2.611254] [<c060efa8>] (driver_probe_device) from [<c060d6ac>] (bus_for_each_drv+0x44/0x8c)
[ 2.620205] [<c060d6ac>] (bus_for_each_drv) from [<c060ed68>] (__device_attach+0x88/0xd8)
[ 2.628793] [<c060ed68>] (__device_attach) from [<c060e524>] (bus_probe_device+0x84/0x8c)
[ 2.637381] [<c060e524>] (bus_probe_device) from [<c060e8fc>] (deferred_probe_work_func+0x5c/0x88)
[ 2.646799] [<c060e8fc>] (deferred_probe_work_func) from [<c025f260>] (process_one_work+0x134/0x338)
[ 2.656393] [<c025f260>] (process_one_work) from [<c025f4c0>] (worker_thread+0x28/0x4cc)
[ 2.664891] [<c025f4c0>] (worker_thread) from [<c0264618>] (kthread+0xd8/0xf4)
[ 2.672485] [<c0264618>] (kthread) from [<c02109a8>] (ret_from_fork+0x14/0x2c)
[ 2.680070] Code: e5940300 e3a01001 ebf80383 e594332c (e593202c)
[ 2.686469] ---[ end trace 2bc5564f7a786282 ]---
[ 2.691516] Unable to handle kernel paging request at virtual address ffffffec
[ 2.699101] pgd = c0204000
[ 2.701939] [ffffffec] *pgd=9fede821, *pte=00000000, *ppte=00000000
[ 2.708543] Internal error: Oops: 17 [#2] SMP ARM
[ 2.713477] Modules linked in:
[ 2.716693] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G D 4.2.0-rc2-00080-g9ea52aaed426 #6
[ 2.726546] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 2.732949] task: db0597c0 ti: db074000 task.ti: db074000
[ 2.738618] PC is at kthread_data+0x4/0xc
[ 2.742829] LR is at wq_worker_sleeping+0xc/0xd0
[ 2.747674] pc : [<c0264b60>] lr : [<c026041c>] psr: 20000193
[ 2.747674] sp : db075c50 ip : dfaa7040 fp : db075c9c
[ 2.759716] r10: c0dfe6a8 r9 : db0597c0 r8 : c0dfa040
[ 2.765196] r7 : 00000000 r6 : db059a54 r5 : c0dfa040 r4 : 00000000
[ 2.772042] r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : db0597c0
[ 2.778891] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
[ 2.786468] Control: 10c5387d Table: 9b4e8019 DAC: 00000015
[ 2.792496] Process kworker/u2:0 (pid: 6, stack limit = 0xdb074220)
[ 2.799071] Stack: (0xdb075c50 to 0xdb076000)
[ 2.803645] 5c40: dfaa7040 c0958060 00000001 c0f04794
[ 2.812231] 5c60: db0597c0 c024d248 c0df7280 00000001 c09583e0 1ecad000 db0599d0 db075a84
[ 2.820816] 5c80: db058000 db0599d0 db075cb0 0000000b 00000001 00000001 db075ca4 c09583e0
[ 2.829401] 5ca0: db0597c0 c024e688 c0bac160 db075ccc db075cb0 db075cb0 db075df8 c0f02604
[ 2.837986] 5cc0: db075df8 c0e02ce4 60000193 0000000b 00000001 c081703e c0817040 c0213a04
[ 2.846571] 5ce0: db074220 0000000b 00000000 c0e02ce4 00000000 00000008 65000000 30343935
[ 2.855156] 5d00: 20303033 30613365 31303031 66626520 38333038 35652033 33333439 28206332
[ 2.863741] 5d20: 33393565 63323032 c0002029 db075d4c 00000000 00001028 00000007 fa06012c
[ 2.872327] 5d40: c0e0309c db075df8 0000009e db4e1300 fa060100 c020a2ac 00000000 80000000
[ 2.880912] 5d60: 00000007 00000000 00000000 fa06012c db0e1820 db4f3eb0 db4f3eb0 c035a628
[ 2.889496] 5d80: 00000002 db4f3eb0 00000000 00000000 db0e1820 c035a8a4 c096add8 c0ea1af4
[ 2.898080] 5da0: db0e1820 00000000 db0e1820 db4f3eb0 c096add8 c0ea1af4 db0e1820 c035bcb8
[ 2.906664] 5dc0: 00000000 00000000 00000000 c035c454 00001000 00000000 db0de9cd 0000000d
[ 2.915248] 5de0: c081703c a0000013 ffffffff db075e2c 00000000 c0214118 fffffff5 00000008
[ 2.923833] 5e00: 00000001 fa060100 db4e1000 00000000 db0e0400 db0e0410 00000000 0000009e
[ 2.932419] 5e20: db4e1300 fa060100 00000064 db075e40 c06170d0 c081703c a0000013 ffffffff
[ 2.941003] 5e40: db4737d0 db0e15f0 00000001 00000009 db0e15f0 db4737d0 c0c0a274 db0e15f0
[ 2.949588] 5e60: 00000001 ffffffef db0e0410 fffffdfb c0ec14dc 00000009 db02d000 00000001
[ 2.958172] 5e80: 00000002 c0610564 c061051c db0e0410 c0f41e24 00000000 c0ec14dc c060efa8
[ 2.966757] 5ea0: 00000000 db075ed0 c060f238 00000001 00000000 c060d6ac db02a970 db4740b8
[ 2.975342] 5ec0: db0e0410 db0e0444 c0ea13f0 c060ed68 db0e0410 00000001 00000000 db0e0410
[ 2.983927] 5ee0: db0e0410 c0ea13f0 db423b00 c060e524 db0e0410 c0ea1390 c0ea1378 c060e8fc
[ 2.992512] 5f00: db02d000 c0ea13ac db04f400 c025f260 dfaa43c0 db04f400 00000001 db04f414
[ 3.001098] 5f20: 00000001 db04f400 db02d018 00000088 db02d000 db04f400 00000002 c025f4c0
[ 3.009683] 5f40: db0597c0 db02b640 00000000 db02d000 c025f498 00000000 00000000 00000000
[ 3.018269] 5f60: 00000000 c0264618 db059300 00000000 ffa4e9fc db02d000 00000000 00000000
[ 3.026854] 5f80: db075f80 db075f80 00000001 00010001 db075f90 db075f90 db075fac db02b640
[ 3.035438] 5fa0: c0264540 00000000 00000000 c02109a8 00000000 00000000 00000000 00000000
[ 3.044021] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 3.052605] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 d79d5c5b baafffaa
[ 3.061195] [<c0264b60>] (kthread_data) from [<c026041c>] (wq_worker_sleeping+0xc/0xd0)
[ 3.069606] [<c026041c>] (wq_worker_sleeping) from [<c0958060>] (__schedule+0x298/0x51c)
[ 3.078102] [<c0958060>] (__schedule) from [<c09583e0>] (schedule+0x34/0x98)
[ 3.085507] [<c09583e0>] (schedule) from [<c024e688>] (do_exit+0x5c8/0x8f0)
[ 3.092825] [<c024e688>] (do_exit) from [<c0213a04>] (die+0x3e0/0x428)
[ 3.099683] [<c0213a04>] (die) from [<c020a2ac>] (do_DataAbort+0xa4/0xb4)
[ 3.106812] [<c020a2ac>] (do_DataAbort) from [<c0214118>] (__dabt_svc+0x38/0x60)
[ 3.114570] Exception stack(0xdb075df8 to 0xdb075e40)
[ 3.119870] 5de0: fffffff5 00000008
[ 3.128455] 5e00: 00000001 fa060100 db4e1000 00000000 db0e0400 db0e0410 00000000 0000009e
[ 3.137040] 5e20: db4e1300 fa060100 00000064 db075e40 c06170d0 c081703c a0000013 ffffffff
[ 3.145629] [<c0214118>] (__dabt_svc) from [<c081703c>] (omap_hsmmc_probe+0x2b8/0xa14)
[ 3.153949] [<c081703c>] (omap_hsmmc_probe) from [<c0610564>] (platform_drv_probe+0x48/0xa4)
[ 3.162813] [<c0610564>] (platform_drv_probe) from [<c060efa8>] (driver_probe_device+0x1c8/0x26c)
[ 3.172129] [<c060efa8>] (driver_probe_device) from [<c060d6ac>] (bus_for_each_drv+0x44/0x8c)
[ 3.181080] [<c060d6ac>] (bus_for_each_drv) from [<c060ed68>] (__device_attach+0x88/0xd8)
[ 3.189668] [<c060ed68>] (__device_attach) from [<c060e524>] (bus_probe_device+0x84/0x8c)
[ 3.198256] [<c060e524>] (bus_probe_device) from [<c060e8fc>] (deferred_probe_work_func+0x5c/0x88)
[ 3.207665] [<c060e8fc>] (deferred_probe_work_func) from [<c025f260>] (process_one_work+0x134/0x338)
[ 3.217255] [<c025f260>] (process_one_work) from [<c025f4c0>] (worker_thread+0x28/0x4cc)
[ 3.225752] [<c025f4c0>] (worker_thread) from [<c0264618>] (kthread+0xd8/0xf4)
[ 3.233337] [<c0264618>] (kthread) from [<c02109a8>] (ret_from_fork+0x14/0x2c)
[ 3.240920] Code: e513001c e7e00150 e12fff1e e5903268 (e5130014)
[ 3.247317] ---[ end trace 2bc5564f7a786283 ]---
[ 3.252159] Fixing recursive fault but reboot is needed!
~$off
# PYBOOT: Exception: kernel: Unable to handle kernel paging request at virtual address ffffffec
#
# PYBOOT: cmdline: pyboot pepper
# PYBOOT: Time: 17.30 (bootloader: 12.60, setup: 0.22, kernel: 0.00)
# PYBOOT: Warnings: 1
# PYBOOT: Result: FAIL
--
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