Subject: Re: MPC8313E RDB: Badness at fs/sysfs/dir.c:463

From: Mike Dyer <[email-masked]>
Date: Tue, 14 Oct 2008 15:12:29 +0100

Hi All,

Apologies for the bad formatting of the previous message...

I've just pulled the 2.6.27 kernel from git and am trying it out on my 
MPC8313E RDB dev kit.  I get the following badness during boot (the 
complete boot record is attached later) :

------------[ cut here ]------------
Badness at fs/sysfs/dir.c:463
NIP: c00c5b54 LR: c00c5b3c CTR: 00000000
REGS: c7827d90 TRAP: 0700   Not tainted  (2.6.27)
MSR: 00029032 <EE,ME,IR,DR>  CR: 22022042  XER: 20000000
TASK = c7816400[1] 'swapper' THREAD: c7826000
GPR00: c00c5b3c c7827e40 c7816400 ffffffef c7800e5c c7800b7c c7811570 
00000000
GPR08: 000001a0 c0370000 00000048 00000000 82044048 100b224c 07ffb000 
00000000
GPR16: 07ff09e0 07ff94c8 00000000 00000000 00000000 c035c76c c035c740 
c7ace610
GPR24: 00000000 00000000 00000000 00000001 c7811570 fffffffe c7acdc00 
c7827e58
Call Trace:
[c7827e40] [c00c5b3c] 0xc00c5b3c (unreliable)
[c7827e50] [c00c6dc4] 0xc00c6dc4
[c7827e80] [c0182d94] 0xc0182d94
[c7827ea0] [c0181590] 0xc0181590
[c7827ef0] [c0213a6c] 0xc0213a6c
[c7827f00] [c0009818] 0xc0009818
[c7827f10] [c00098c0] 0xc00098c0
[c7827f30] [c0009a30] 0xc0009a30
[c7827f50] [c032a1d4] 0xc032a1d4
[c7827f60] [c0003874] 0xc0003874
[c7827fd0] [c031517c] 0xc031517c
[c7827ff0] [c001216c] 0xc001216c
Instruction dump:
912b0028 4bffffbc 9421fff0 7c0802a6 90010014 4bffff2d 2f83ffef 419e0014
80010014 38210010 7c0803a6 4e800020 <0fe00000> 4bffffec 9421ffe0 7c0802a6

I used the mpc8313e_rdb_defconfig, with the exception of enabling more 
debug.

Any help - not sure where to start... ?

Cheers,
Mike

Complete boot sequence:

Using MPC831x RDB machine description
Linux version 2.6.27 ([email-masked]) (gcc version 
4.2.4) #2 Tue Oct 14 14:04:03 BST 2008
Found initrd at 0xc7cf0000:0xc7f2e337
console [udbg0] enabled
setup_arch: bootmem
mpc831x_rdb_setup_arch()
Found MPC83xx PCI host bridge at 0x00000000e0008500. Firmware bus 
number: 0->0
PCI host bridge /sleep-nexus/pci@e0008500 (primary) ranges:
 MEM 0x0000000090000000..0x000000009fffffff -> 0x0000000090000000
 MEM 0x0000000080000000..0x000000008fffffff -> 0x0000000080000000 Prefetch
  IO 0x00000000e2000000..0x00000000e20fffff -> 0x0000000000000000
arch: exit
Zone PFN ranges:
  DMA      0x00000000 -> 0x00008000
  Normal   0x00008000 -> 0x00008000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00008000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
Kernel command line: root=/dev/ram0 rw console=ttyS0,115200 
mtdparts=e2800000.flash:560k(u-boot),80k(u-boot-env),2m(kernel),16k(dtb),-(root)
IPIC (128 IRQ sources) at fdefa700
PID hash table entries: 512 (order: 9, 2048 bytes)
clocksource: timebase mult[6000002] shift[22] registered
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 123844k/131072k available (3364k kernel code, 7080k reserved, 
132k data, 98k bss, 208k init)
SLUB: Genslabs=12, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 83.20 BogoMIPS (lpj=166400)
Mount-cache hash table entries: 512
net_namespace: 288 bytes
NET: Registered protocol family 16
             
PCI: Probing PCI hardware
pci 0000:00:00.0: PME# supported from D0 D1 D2 D3hot
pci 0000:00:00.0: PME# disabled
bus: 00 index 0 io port: [0, fffff]
bus: 00 index 1 mmio: [90000000, 9fffffff]
bus: 00 index 2 mmio: [80000000, 8fffffff]
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: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
NET: Registered protocol family 1
checking if image is initramfs...it isn't (no cpio magic); looks like an 
initrd
Freeing initrd memory: 2296k freed
------------[ cut here ]------------
Badness at fs/sysfs/dir.c:463
NIP: c00c5b54 LR: c00c5b3c CTR: 00000000
REGS: c7827d90 TRAP: 0700   Not tainted  (2.6.27)
MSR: 00029032 <EE,ME,IR,DR>  CR: 22022042  XER: 20000000
TASK = c7816400[1] 'swapper' THREAD: c7826000
GPR00: c00c5b3c c7827e40 c7816400 ffffffef c7800e5c c7800b7c c7811570 
00000000
GPR08: 000001a0 c0370000 00000048 00000000 82044048 100b224c 07ffb000 
00000000
GPR16: 07ff09e0 07ff94c8 00000000 00000000 00000000 c035c76c c035c740 
c7ace610
GPR24: 00000000 00000000 00000000 00000001 c7811570 fffffffe c7acdc00 
c7827e58
Call Trace:
[c7827e40] [c00c5b3c] 0xc00c5b3c (unreliable)
[c7827e50] [c00c6dc4] 0xc00c6dc4
[c7827e80] [c0182d94] 0xc0182d94
[c7827ea0] [c0181590] 0xc0181590
[c7827ef0] [c0213a6c] 0xc0213a6c
[c7827f00] [c0009818] 0xc0009818
[c7827f10] [c00098c0] 0xc00098c0
[c7827f30] [c0009a30] 0xc0009a30
[c7827f50] [c032a1d4] 0xc032a1d4
[c7827f60] [c0003874] 0xc0003874
[c7827fd0] [c031517c] 0xc031517c
[c7827ff0] [c001216c] 0xc001216c
Instruction dump:
912b0028 4bffffbc 9421fff0 7c0802a6 90010014 4bffff2d 2f83ffef 419e0014
80010014 38210010 7c0803a6 4e800020 <0fe00000> 4bffffec 9421ffe0 7c0802a6
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
msgmni has been set to 246
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
Serial: 8250/16550 driver4 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16) is a 16550A
console handover: boot [udbg0] -> real [ttyS0]
serial8250.0: ttyS1 at MMIO 0xe0004600 (irq = 17) is a 16550A
brd: module loaded
loop: module loaded
Gianfar MII Bus: probed
eth0: Gianfar Ethernet Controller Version 1.2, 00:e0:0c:00:95:01
eth0: Running with NAPI enabled
eth0: 256/256 RX/TX BD ring size
eth1: Gianfar Ethernet Controller Version 1.2, 00:e0:0c:00:95:02
eth1: Running with NAPI enabled
eth1: 256/256 RX/TX BD ring size
e100: Intel(R) PRO/100 Network Driver, 3.5.23-k4-NAPI
e100: Copyright(c) 1999-2006 Intel Corporation
fe000000.flash: Found 1 x16 devices at 0x0 in 16-bit bank
 Amd/Fujitsu Extended Query Table at 0x0040
fe000000.flash: Swapping erase regions for broken CFI table.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
cmdlinepart partition parsing not available
RedBoot partition parsing not available
NAND device: Manufacturer ID: 0xec, Chip ID: 0x75 (Samsung NAND 32MiB 
3,3V 8-bit)
cmdlinepart partition parsing not available
RedBoot partition parsing not available
Creating 3 MTD partitions on "e2800000.flash":
0x00000000-0x00100000 : "u-boot"
0x00100000-0x00400000 : "kernel"
0x00400000-0x02000000 : "fs"
eLBC NAND device at 0xe2800000, bank 0
usbmon: debugfs is not available
fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
fsl-ehci fsl-ehci.0: irq 38, io base 0xe0023000
fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
USB Universal Host Controller Interface driver v3.0
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
i2c /dev entries driver
rtc-ds1307 0-0068: rtc core: registered ds1339 as rtc0
md: linear personality registered for level -1
md: raid0 personality registered for level 0
md: raid1 personality registered for level 1
TCP cubic registered
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
rtc-ds1307 0-0068: setting system clock to 2000-01-04 22:45:49 UTC 
(947025949)
md: Autodetecting RAID arrays.
md: Scanned 0 and added 0 devices.
md: autorun ...
md: ... autorun DONE.
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 208k init