BUG: soft lockup detected on CPU#0! on S3C2442 | |
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Hello list! I am using a custom board with a Samsung SoC S3C2442 (MCP3) with 64MiB SDRAM and 128MiB NAND FLASH. Here is my machine's log: Linux version 2.6.19 (gianluca@gianlinux) (gcc version 4.1.1) #3 Fri Mar 23 16:40:10 CET 2007 CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=00007177 Machine: SMDK2440 Memory policy: ECC disabled, Data cache writeback CPU S3C2442 (id 0x32440aaa) S3C244X: core 296.352 MHz, memory 98.784 MHz, peripheral 49.392 MHz S3C24XX Clocks, (c) 2004 Simtec Electronics CLOCK: Slow mode (2.116 MHz), fast, MPLL on, UPLL on CPU0: D VIVT write-back cache CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets Built 1 zonelists. Total pages: 16256 Kernel command line: root=/dev/mtdblock2 rw rootfstype=yaffs noinitrd console=ttySAC1,115200 irq: clearing pending ext status 00000300 irq: clearing subpending status 00000092 PID hash table entries: 256 (order: 8, 1024 bytes) timer tcon=00400000, tcnt a0c7, tcfg 00000200,00000000, usec 00001f19 Console: colour dummy device 80x30 Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 64MB = 64MB total Memory: 62336KB available (2020K code, 431K data, 116K init) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics Registering sysclass DMA channel 0 at c4800000, irq 33 DMA channel 1 at c4800040, irq 34 DMA channel 2 at c4800080, irq 35 DMA channel 3 at c48000c0, irq 36 NET: Registered protocol family 16 LCD Type: 3.5in QVGA (Samsung SMDK-S3C2440) S3C2410 Power Management, (c) 2004 Simtec Electronics S3C2442: Initialising architecture 0: xdreq0, channels 0--- 1: xdreq1, channels -1-- 2: sdi, channels 0-23 3: spi0, channels -1-- 4: spi1, channels ---3 5: uart0, channels 0--- 6: uart1, channels -1-- 7: uart2, channels ---3 8: timer, channels 0-23 9: i2s-sdi, channels -12- 10: i2s-sdo, channels --2- 11: <NULL>, channels ---- 12: <NULL>, channels ---- 13: <NULL>, channels ---- 14: usb-ep1, channels 0--- 15: usb-ep2, channels -1-- 16: usb-ep3, channels --2- 17: usb-ep4, channels ---3 S3C2442: Clock Support, DVS off SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb NET: Registered protocol family 2 IP route cache hash table entries: 512 (order: -1, 2048 bytes) TCP established hash table entries: 2048 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes) TCP: Hash tables configured (established 2048 bind 1024) TCP reno registered NetWinder Floating Point Emulator V0.97 (double precision) yaffs Mar 23 2007 16:37:36 Installing. io scheduler noop registered io scheduler anticipatory registered (default) Console: switching to colour frame buffer device 30x40 fb0: s3c2410fb frame buffer device S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled s3c2440-uart.0: s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440 s3c2440-uart.1: s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440 s3c2440-uart.2: s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: loaded (max 8 devices) nbd: registered device at major 43 S3C24XX NAND Driver, (c) 2004 Simtec Electronics s3c2440-nand s3c2440-nand: Tacls=2, 20ns Twrph0=6 60ns, Twrph1=2 20ns NAND device: Manufacturer ID: 0xec, Chip ID: 0xa1 (Samsung NAND 128MiB 1,8V 8-bit) Scanning device for bad blocks Creating 3 MTD partitions on "NAND 128MiB 1,8V 8-bit": 0x00000000-0x00020000 : "Bootloader" 0x00020000-0x00400000 : "Kernel" 0x00400000-0x08000000 : "User" s3c2410-spi s3c2410-spi.0: registering mcp251x s3c2410-ohci s3c2410-ohci: S3C24XX OHCI s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1 s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected usb 1-1: new full speed USB device using s3c2410-ohci and address 2 usb 1-1: configuration #1 chosen from 1 choice usbcore: registered new interface driver usblp drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver Initializing USB Mass Storage driver... scsi0 : SCSI emulation for USB Mass Storage devices usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usbcore: registered new interface driver libusual usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver mice: PS/2 mouse device common for all mice s3c2410 TouchScreen successfully loaded input: s3c2410 TouchScreen as /class/input/input0 i2c /dev entries driver s3c2440-i2c s3c2440-i2c: slave address 0x10 s3c2440-i2c s3c2440-i2c: bus frequency set to 385 KHz s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter fm31xx_attach_adapter fm31xx_detect /dev/nvram Driver initialized mapped channel 0 to 0 s3c2440-sdi s3c2440-sdi: powered down. s3c2440-sdi s3c2440-sdi: initialisation done. s3c2440-sdi s3c2440-sdi: running at 0kHz (requested: 0kHz). s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). TCP cubic registered NET: Registered protocol family 1 yaffs: dev is 32505858 name is "mtdblock2" yaffs: Attempting MTD mount on 31.2, "mtdblock2" yaffs: auto selecting yaffs2 s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). mmc0: host does not support reading read-only switch. assuming write-enable. s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). s3c2440-sdi s3c2440-sdi: running at 193kHz (requested: 192kHz). s3c2440-sdi s3c2440-sdi: running at 24696kHz (requested: 25000kHz). s3c2440-sdi s3c2440-sdi: running at 24696kHz (requested: 25000kHz). mmcblk0: mmc0:9fba SD064 60928KiB mmcblk0: p1 VFS: Mounted root (yaffs filesystem). Freeing init memory: 116K Initializing system... After digging on enable/disable VM for the kernel as our architecture has not any virtual memory setup (no hd, only FLASH) I am facing a kernel problem dumping more than 40MiB of NAND Flash or untarring a 15MiB tar.gz... The problem is: ... BUG: soft lockup detected on CPU#0! What's going on? It seems the cpu is not able to manage more than xx megabytes of RAM... In the first case I am running a mere: nanddump -b -f dump124MB.bin /dev/mtd2 and it fails after reaching approx. 40MiB of size. Anyone has ever faced a problem like that? Any help? Regards, -- Gianluca Renzi ------------------------------------------------------------------- List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm FAQ: http://www.arm.linux.org.uk/mailinglists/faq.php Etiquette: http://www.arm.linux.org.uk/mailinglists/etiquette.php
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