[PATCH] ARM: reinsert ARCH_MULTI_V4 Kconfig option
Jonas Jensen
jonas.jensen at gmail.com
Thu Apr 10 01:04:54 PDT 2014
On 9 April 2014 18:01, Russell King - ARM Linux <linux at arm.linux.org.uk> wrote:
> It would be useful to see the register state from the undefined
> instruction exception. That needs this patch, CONFIG_DEBUG_USER in the
> kernel config enabled, and user_debug=1 passed on the kernel command
> line.
I have done two tests, one with user_debug=1, and one with
user_debug=31, since I expected more information on user_debug=1.
As Arnd pointed out, this is booting into a non-thumb userspace, built
with gcc version 4.9.0 20140316 and buildroot 2014.02.
Buildroot config:
https://code.google.com/p/mkrom-uc7112lx/source/browse/configs/buildroot-2014-02_eglibc-2.17_binutils-2.22_external-toolchain.config
Results:
user_debug=1 ( https://bitbucket.org/Kasreyn/linux-next/commits/3a32b929d7a399751c6397f0c973b356c6c9a71d
):
Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.14.0-next-20140409+ (i at Ildjarn)
(gcc version 4.9.0 20140316 (experimental) (crosstool-NG 1.19.0) )
#2431 PREEMPT Thu Apr 10 09:12:35 CEST 2014
..
[ 0.000000] Kernel command line: console=ttyS0,115200n8
earlyprintk root=/dev/mmcblk0p1 rw rootwait debug user_debug=1
..
[ 2.700000] Freeing unused kernel memory: 104K (c02f4000 - c030e000)
[ 3.380000] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
[ 3.380000]
[ 3.380000] CPU: 0 PID: 1 Comm: init Not tainted
3.14.0-next-20140409+ #2431
[ 3.380000] [<c000d4e0>] (unwind_backtrace) from [<c000bcbc>]
(show_stack+0x10/0x14)
[ 3.380000] [<c000bcbc>] (show_stack) from [<c0268f74>]
(panic+0x98/0x1f4)
[ 3.380000] [<c0268f74>] (panic) from [<c0016bcc>] (do_exit+0x908/0x938)
[ 3.380000] [<c0016bcc>] (do_exit) from [<c0016c70>]
(do_group_exit+0x4c/0xe8)
[ 3.380000] [<c0016c70>] (do_group_exit) from [<c0022098>]
(get_signal_to_deliver+0x218/0x5f0)
[ 3.380000] [<c0022098>] (get_signal_to_deliver) from
[<c000b358>] (do_signal+0x100/0x48c)
[ 3.380000] [<c000b358>] (do_signal) from [<c000b8ac>]
(do_work_pending+0xd4/0xe4)
[ 3.380000] [<c000b8ac>] (do_work_pending) from [<c000933c>]
(work_pending+0xc/0x20)
[ 3.380000] Rebooting in 10 seconds..
user_debug=31 (
https://bitbucket.org/Kasreyn/linux-next/commits/8ed2db951baca29c6254de328765873fe5457727
):
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.14.0-next-20140409+ (i at Ildjarn)
(gcc version 4.9.0 20140316 (experimental) (crosstool-NG 1.19.0) )
#2431 PREEMPT Thu Apr 10 09:12:35 CEST 2014
[ 0.000000] CPU: FA526 [66015261] revision 1 (ARMv4), cr=0000397f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] Machine model: MOXA UC-7112-LX
[ 0.000000] bootconsole [earlycon0] enabled
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 8192
[ 0.000000] free_area_init_node: node 0, pgdat c0322324,
node_mem_map c1fba000
[ 0.000000] Normal zone: 64 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 8192 pages, LIFO batch:0
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping
on. Total pages: 8128
[ 0.000000] Kernel command line: console=ttyS0,115200n8
earlyprintk root=/dev/mmcblk0p1 rw rootwait debug user_debug=31
[ 0.000000] PID hash table entries: 128 (order: -3, 512 bytes)
[ 0.000000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Memory: 29092K/32768K available (2542K kernel code,
74K rwdata, 448K rodata, 104K init, 116K bss, 3676K reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xc2800000 - 0xff000000 ( 968 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc2000000 ( 32 MB)
[ 0.000000] .text : 0xc0008000 - 0xc02f3d80 (2992 kB)
[ 0.000000] .init : 0xc02f4000 - 0xc030e36c ( 105 kB)
[ 0.000000] .data : 0xc0310000 - 0xc0322aa0 ( 75 kB)
[ 0.000000] .bss : 0xc0322aac - 0xc033fbc0 ( 117 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] sched_clock: 32 bits at 100 Hz, resolution
10000000ns, wraps every 21474836480000000ns
[ 0.010000] Calibrating delay loop... 146.84 BogoMIPS (lpj=734208)
[ 0.100000] pid_max: default: 4096 minimum: 301
[ 0.100000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.110000] Mountpoint-cache hash table entries: 1024 (order:
0, 4096 bytes)
[ 0.120000] CPU: Testing write buffer coherency: ok
[ 0.130000] Setting up static identity map for 0x26e308 - 0x26e390
[ 0.150000] devtmpfs: initialized
[ 0.160000] NET: Registered protocol family 16
[ 0.180000] DMA: preallocated 256 KiB pool for atomic coherent
allocations
[ 0.330000] Switched to clocksource moxart_timer
[ 0.370000] NET: Registered protocol family 2
[ 0.390000] TCP established hash table entries: 1024 (order: 0,
4096 bytes)
[ 0.410000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.410000] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.430000] TCP: reno registered
[ 0.430000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.450000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.470000] NET: Registered protocol family 1
[ 0.490000] futex hash table entries: 16 (order: -5, 192 bytes)
[ 0.590000] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.610000] msgmni has been set to 56
[ 0.610000] io scheduler noop registered
[ 0.640000] io scheduler cfq registered (default)
[ 0.640000] gpiochip_add: registered GPIOs 0 to 31 on device: moxart-gpio
[ 0.660000] Serial: 8250/16550 driver, 3 ports, IRQ sharing enabled
[ 0.690000] console [ttyS0] disabled
[ 0.690000] 98200000.uart: ttyS0 at MMIO 0x98200000 (irq = 21,
base_baud = 921600) is a 16550A
[ 0.700000] console [ttyS0] enabled
[ 0.700000] console [ttyS0] enabled
[ 0.710000] bootconsole [earlycon0] disabled
[ 0.710000] bootconsole [earlycon0] disabled
[ 0.720000] MOXA Smartio/Industio family driver version 2.0.5
[ 0.730000] mxser: found MOXA UC-7112-LX board (CAP=0x0)
[ 0.740000] ttyMX0 at I/O 0xf9820040 (irq = 21, base_baud = 0)
is a 16550A
[ 0.750000] ttyMX1 at I/O 0xf9820060 (irq = 21, base_baud = 0)
is a 16550A
[ 0.760000] mxser: mxser_initbrd success IRQ=21 max baud=921600 bps
[ 0.820000] loop: module loaded
[ 0.860000] 80000000.flash: Found 1 x16 devices at 0x0 in
16-bit bank. Manufacturer ID 0x000089 Chip ID 0x000018
[ 0.870000] Intel/Sharp Extended Query Table at 0x0031
[ 0.880000] Intel/Sharp Extended Query Table at 0x0031
[ 0.890000] Using buffer write method
[ 0.890000] cfi_cmdset_0001: Erase suspend on write enabled
[ 0.900000] erase region 0: offset=0x0,size=0x20000,blocks=128
[ 0.900000] 4 ofpart partitions found on MTD device 80000000.flash
[ 0.910000] Creating 4 MTD partitions on "80000000.flash":
[ 0.910000] 0x000000000000-0x000000040000 : "bootloader"
[ 0.930000] 0x000000040000-0x000000200000 : "linux kernel"
[ 0.950000] 0x000000200000-0x000000a00000 : "root filesystem"
[ 0.970000] 0x000000a00000-0x000001000000 : "user filesystem"
[ 1.600000] libphy: MOXA ART Ethernet MII: probed
[ 2.220000] libphy: MOXA ART Ethernet MII: probed
[ 2.260000] moxart-ethernet 90900000.ethernet eth0:
moxart_mac_probe: IRQ=19 address=00:00:00:00:00:00
[ 2.270000] moxart-ethernet 90900000.ethernet eth0: generated
random MAC address a6:07:0d:68:31:c4
[ 2.280000] moxart-ethernet 92000000.ethernet eth1:
moxart_mac_probe: IRQ=20 address=00:00:00:00:00:00
[ 2.300000] moxart-ethernet 92000000.ethernet eth1: generated
random MAC address 5a:e7:48:87:f5:5e
[ 2.310000] of_get_named_gpiod_flags exited with status 0
[ 2.320000] input: gpio_keys_polled.2 as
/devices/gpio_keys_polled.2/input/input0
[ 2.330000] evbug: Connected device: input0 (gpio_keys_polled.2
at gpio-keys-polled/input0)
[ 2.340000] of_get_named_gpiod_flags exited with status 0
[ 2.350000] of_get_named_gpiod_flags exited with status 0
[ 2.350000] of_get_named_gpiod_flags exited with status 0
[ 2.360000] moxart-rtc rtc.0: rtc core: registered rtc.0 as rtc0
[ 2.380000] of_get_named_gpiod_flags: can't parse gpios
property of node '/soc/mmc at 98e00000[0]'
[ 2.390000] of_get_named_gpiod_flags: can't parse gpios
property of node '/soc/mmc at 98e00000[0]'
[ 2.450000] of_get_named_gpiod_flags exited with status 0
[ 2.450000] of_get_named_gpiod_flags exited with status 0
[ 2.460000] TCP: cubic registered
[ 2.470000] NET: Registered protocol family 17
[ 2.490000] console [netcon0] enabled
[ 2.490000] netconsole: network logging started
[ 2.500000] moxart-rtc rtc.0: setting system clock to
2014-04-10 07:16:34 UTC (1397114194)
[ 2.510000] Waiting for root device /dev/mmcblk0p1...
[ 2.520000] mmc0: new SDHC card at address 0fd0
[ 2.530000] mmcblk0: mmc0:0fd0 SD04G 3.69 GiB
[ 2.550000] mmcblk0: p1
[ 2.650000] kjournald starting. Commit interval 5 seconds
[ 2.650000] EXT3-fs (mmcblk0p1): warning: maximal mount count
reached, running e2fsck is recommended
[ 2.680000] EXT3-fs (mmcblk0p1): using internal journal
[ 2.680000] EXT3-fs (mmcblk0p1): recovery complete
[ 2.690000] EXT3-fs (mmcblk0p1): mounted filesystem with
ordered data mode
[ 2.690000] VFS: Mounted root (ext3 filesystem) on device 179:1.
[ 2.710000] devtmpfs: mounted
[ 2.720000] Freeing unused kernel memory: 104K (c02f4000 - c030e000)
[ 3.390000] init: unhandled page fault (11) at 0xffff1007, code 0x01f
[ 3.400000] pgd = c1a24000
[ 3.400000] [ffff1007] *pgd=01ffd831, *pte=01fff0cf, *ppte=01fff00e
[ 3.400000]
[ 3.410000] CPU: 0 PID: 1 Comm: init Not tainted
3.14.0-next-20140409+ #2431
[ 3.420000] task: c1828000 ti: c182c000 task.ti: c182c000
[ 3.420000] PC is at 0xb6df2478
[ 3.430000] LR is at 0x1c
[ 3.430000] pc : [<b6df2478>] lr : [<0000001c>] psr: 60000010
[ 3.430000] sp : bee48eb8 ip : bee48fe0 fp : 00000000
[ 3.440000] r10: 00000000 r9 : b6f34958 r8 : bee48f1c
[ 3.450000] r7 : bee48f14 r6 : bee48f1c r5 : 00000001 r4 : b6f08000
[ 3.460000] r3 : 00000008 r2 : bee48fd4 r1 : 00115c40 r0 : ffff0fff
[ 3.470000] Flags: nZCv IRQs on FIQs on Mode USER_32 ISA
ARM Segment user
[ 3.480000] Control: 0000397f Table: 01a24000 DAC: 00000015
[ 3.490000] CPU: 0 PID: 1 Comm: init Not tainted
3.14.0-next-20140409+ #2431
[ 3.500000] [<c000d4e0>] (unwind_backtrace) from [<c000bcbc>]
(show_stack+0x10/0x14)
[ 3.510000] [<c000bcbc>] (show_stack) from [<c000eb64>]
(__do_user_fault+0xbc/0xc8)
[ 3.520000] [<c000eb64>] (__do_user_fault) from [<c000edd4>]
(do_page_fault+0x264/0x29c)
[ 3.530000] [<c000edd4>] (do_page_fault) from [<c0008444>]
(do_DataAbort+0x34/0x98)
[ 3.540000] [<c0008444>] (do_DataAbort) from [<c000c9a4>]
(__dabt_usr+0x44/0x60)
[ 3.550000] Exception stack(0xc182dfb0 to 0xc182dff8)
[ 3.550000] dfa0: ffff0fff
00115c40 bee48fd4 00000008
[ 3.560000] dfc0: b6f08000 00000001 bee48f1c bee48f14 bee48f1c
b6f34958 00000000 00000000
[ 3.570000] dfe0: bee48fe0 bee48eb8 0000001c b6df2478 60000010 ffffffff
[ 3.580000] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
[ 3.580000]
[ 3.580000] CPU: 0 PID: 1 Comm: init Not tainted
3.14.0-next-20140409+ #2431
[ 3.580000] [<c000d4e0>] (unwind_backtrace) from [<c000bcbc>]
(show_stack+0x10/0x14)
[ 3.580000] [<c000bcbc>] (show_stack) from [<c0268f74>]
(panic+0x98/0x1f4)
[ 3.580000] [<c0268f74>] (panic) from [<c0016bcc>] (do_exit+0x908/0x938)
[ 3.580000] [<c0016bcc>] (do_exit) from [<c0016c70>]
(do_group_exit+0x4c/0xe8)
[ 3.580000] [<c0016c70>] (do_group_exit) from [<c0022098>]
(get_signal_to_deliver+0x218/0x5f0)
[ 3.580000] [<c0022098>] (get_signal_to_deliver) from
[<c000b358>] (do_signal+0x100/0x48c)
[ 3.580000] [<c000b358>] (do_signal) from [<c000b8ac>]
(do_work_pending+0xd4/0xe4)
[ 3.580000] [<c000b8ac>] (do_work_pending) from [<c000933c>]
(work_pending+0xc/0x20)
[ 3.580000] Rebooting in 10 seconds..
defconfig:
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
# CONFIG_USELIB is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
# CONFIG_UID16 is not set
# CONFIG_ELF_CORE is not set
# CONFIG_BASE_FULL is not set
# CONFIG_EVENTFD is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
CONFIG_ARCH_MULTI_V4=y
CONFIG_ARCH_MULTI_V4T=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_MOXART=y
CONFIG_MACH_UC7112LX=y
CONFIG_PREEMPT=y
CONFIG_AEABI=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_ATAGS is not set
CONFIG_ARM_APPENDED_DTB=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_NETDEVICES=y
CONFIG_NETCONSOLE=y
CONFIG_NETCONSOLE_DYNAMIC=y
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_FARADAY is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
CONFIG_ARM_MOXART_ETHER=y
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_REALTEK_PHY=y
CONFIG_MDIO_MOXART=y
# CONFIG_WLAN is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=y
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO_POLLED=y
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_MOXA_SMARTIO=y
# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=3
CONFIG_SERIAL_8250_RUNTIME_UARTS=3
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_DEBUG_GPIO=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_MOXART=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_MOXART_WDT=y
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_MOXART=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_MOXART=y
CONFIG_DMADEVICES=y
CONFIG_MOXART_DMA=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_MCB=y
CONFIG_EXT3_FS=y
CONFIG_TMPFS=y
CONFIG_CONFIGFS_FS=y
CONFIG_JFFS2_FS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_TIMEOUT=10
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_FTRACE is not set
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_UART_8250=y
CONFIG_DEBUG_UART_PHYS=0x98200000
CONFIG_DEBUG_UART_VIRT=0xf9820000
CONFIG_EARLY_PRINTK=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_BIT=y
Regards,
Jonas
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