kernel panic when reboot linux

Question

Dear all,

This is a very strange issue,I run linux on NIOS at CYCLONE 4.

After download linux image,system can boot successfully.

But when I execute command reboot in UART shell or push reset button,sometimes linux cann't boot up.

Maybe reboot/reset about 6 times,the issue can occur.

Once kernel panic,UART cann't be used.So I push reset button.But every time linux stop at the same place.

At this situation,I reconfigure FPGA,linux can boot up again.

Here is the kernel panic message,Does anyone know how to deal with this issue?

Thanks!

altera_forum · Answer

[ 0.000000] PID hash table entries: 64 (order: -4, 256 bytes)

[ 0.000000] Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)

[ 0.000000] Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)

[ 0.000000] Memory available: 13116k/3074k RAM (2355k kernel code, 719k data)

[ 0.000000] NR_IRQS:32

[ 0.001000] Calibrating delay loop... 18.30 BogoMIPS (lpj=9152)

[ 0.016000] pid_max: default: 32768 minimum: 301

[ 0.025000] Mount-cache hash table entries: 512

[ 0.112000] devtmpfs: initialized

[ 0.145000] NET: Registered protocol family 16

[ 0.258000] bio: create slab <bio-0> at 0

[ 0.296000] Switching to clocksource timer

[ 0.345000] NET: Registered protocol family 2

[ 0.352000] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

[ 0.378000] TCP established hash table entries: 512 (order: 0, 4096 bytes)

[ 0.379000] TCP bind hash table entries: 512 (order: -1, 2048 bytes)

[ 0.380000] TCP: Hash tables configured (established 512 bind 512)

[ 0.380000] TCP reno registered

[ 0.381000] UDP hash table entries: 256 (order: 0, 4096 bytes)

[ 0.382000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

[ 0.390000] NET: Registered protocol family 1

[ 0.402000] RPC: Registered named UNIX socket transport module.

[ 0.403000] RPC: Registered udp transport module.

[ 0.403000] RPC: Registered tcp transport module.

[ 0.404000] RPC: Registered tcp NFSv4.1 backchannel transport module.

[ 0.447000] altera_gpio: /sopc@0/gpio@0x6002560: registered, irq -6

[ 0.451000] altera_gpio: /sopc@0/gpio@0x6002580: registered, irq -6

[ 0.455000] altera_gpio: /sopc@0/gpio@0x60025a0: registered, irq -6

[ 0.459000] altera_gpio: /sopc@0/gpio@0x60025e0: registered, irq -6

[ 0.463000] altera_gpio: /sopc@0/gpio@0x60025c0: registered, irq -6

[ 0.467000] altera_gpio: /sopc@0/gpio@0x60025f0: registered, irq -6

[ 0.471000] altera_gpio: /sopc@0/gpio@0x6002600: registered, irq -6

[ 0.475000] altera_gpio: /sopc@0/gpio@0x6002610: registered, irq -6

[ 0.479000] altera_gpio: /sopc@0/gpio@0x6002620: registered, irq -6

[ 0.483000] altera_gpio: /sopc@0/gpio@0x6002630: registered, irq -6

[ 0.488000] altera_gpio: /sopc@0/gpio@0x6002640: registered, irq -6

[ 0.492000] altera_gpio: /sopc@0/gpio@0x6002650: registered, irq -6

[ 0.496000] altera_gpio: /sopc@0/gpio@0x6002660: registered, irq -6

[ 0.500000] altera_gpio: /sopc@0/gpio@0x6002670: registered, irq -6

[ 0.504000] altera_gpio: /sopc@0/gpio@0x6002700: registered, irq -6

[ 0.508000] altera_gpio: /sopc@0/gpio@0x6002800: registered, irq -6

[ 0.673000] JFFS2 version 2.2. ?? 2001-2006 Red Hat, Inc.

[ 0.691000] msgmni has been set to 25

[ 0.696000] io scheduler noop registered (default)

[ 3.122000] ttyAL0 at MMIO 0x6002540 (irq = 2) is a Altera UART

[ 3.125000] console [ttyAL0] enabled

[ 3.137000] ttyJ0 at MMIO 0x6002688 (irq = 5) is a Altera JTAG UART

[ 3.149000] altera_sysid 6002680.sysid: System creation hash 00000000 timesta

mp 2013-04-27 01:07:55

[ 3.152000] altera_sysid 6002690.sysid: System creation hash 00000000 timesta

mp 2013-04-27 01:07:55

[ 3.172000] 2000000.flash: Found 1 x16 devices at 0x0 in 16-bit bank. Manufac

turer ID 0x000089 Chip ID 0x00891c

[ 3.173000] Intel/Sharp Extended Query Table at 0x010A

[ 3.174000] Intel/Sharp Extended Query Table at 0x010A

[ 3.176000] Intel/Sharp Extended Query Table at 0x010A

[ 3.177000] Intel/Sharp Extended Query Table at 0x010A

[ 3.179000] Intel/Sharp Extended Query Table at 0x010A

[ 3.180000] Using buffer write method

[ 3.181000] Using auto-unlock on power-up/resume

[ 3.182000] cfi_cmdset_0001: Erase suspend on write enabled

[ 3.183000] erase region 0: offset=0x0,size=0x8000,blocks=4

[ 3.185000] erase region 1: offset=0x20000,size=0x20000,blocks=255

[ 3.197000] 9 cmdlinepart partitions found on MTD device 2000000.flash

[ 3.198000] Creating 9 MTD partitions on "2000000.flash":

[ 3.199000] 0x000000e20000-0x000000e40000 : "uboot"

[ 3.234000] 0x000000e40000-0x000000e60000 : "env"

[ 3.268000] 0x000000e60000-0x000001040000 : "kernel"

[ 3.303000] 0x000001040000-0x000001360000 : "rootfs"

[ 3.340000] 0x000000000000-0x000002000000 : "allflash"

[ 3.387000] 0x000000000000-0x000000008000 : "param1"

[ 3.421000] 0x000000008000-0x000000010000 : "param2"

[ 3.456000] 0x000001360000-0x000001560000 : "app"

[ 3.491000] 0x000001560000-0x000002000000 : "update"

[ 3.601000] TCP cubic registered

[ 3.602000] NET: Registered protocol family 17

[ 3.604000] Registering the dns_resolver key type

[ 4.124000] VFS: Mounted root (jffs2 filesystem) on device 31:3.

[ 4.126000] Freeing unused kernel memory: 100k freed (0xc524e000 - 0xc5267000)

[ 7.342000] Kernel panic - not syncing: Attempted to kill init!

altera_forum · Answer