Re: [PATCH] laptop-mode-2.6.0 version 5

[Hugang <hugang@soulinfo.com>]

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On Fri, 2 Jan 2004 12:27:33 +0100
Jens Axboe <axboe@suse.de> wrote:

> I dunno, I can't possibly tell since you haven't given any info about
> this crash. Where does it crash, do you have an oops? All I could say
> from your report + patch is that it wasn't valid. There's just no way
> for current->comm to be NULL, so your patch couldn't possibly have made
> a difference.

Attached file is the crashed dmesg, When I disable CONFIG_LBD, the problem not found any more.

thanks.

-- 
Hu Gang / Steve
RLU#          : 204016 [1999] (Registered Linux user)
GPG Public Key: http://soulinfo.com/~hugang/HuGang.asc

[-- Attachment #2: crash.log --]
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Total memory = 256MB; using 512kB for hash table (at c0280000)
Linux version 2.6.0-test11-wli-3 (hugang@hugang.soulinfo.com) (gcc version 2.95.4 20011002 (Debian prerelease)) #13 Fri Jan 2 19:24:29 CST 2004
Found Uninorth memory controller & host bridge, revision: 210
Mapped at 0xfdf3c000
Found a Intrepid mac-io controller, rev: 0, mapped at 0xfdebc000
Processor NAP mode on idle enabled.
PowerMac motherboard: PowerBook G4 12"
Found UniNorth PCI host bridge at 0xf0000000. Firmware bus number: 0->0
Found UniNorth PCI host bridge at 0xf2000000. Firmware bus number: 0->0
Found UniNorth PCI host bridge at 0xf4000000. Firmware bus number: 0->0
PMU driver 2 initialized for Core99, firmware: 0c
On node 0 totalpages: 65536
  DMA zone: 65536 pages, LIFO batch:256
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Building zonelist for node : 0
Kernel command line: root=/dev/hda13 ro 
PowerMac using OpenPIC irq controller
OpenPIC Version 1.2 (4 CPUs and 64 IRQ sources) at fc66e000
OpenPIC timer frequency is 4.166666 MHz
PID hash table entries: 2048 (order 11: 16384 bytes)
GMT Delta read from XPRAM: 0 minutes, DST: off
time_init: decrementer frequency = 33.280357 MHz
Console: colour dummy device 80x25
Memory: 250880k available (1472k kernel code, 928k data, 144k init, 0k highmem)
AGP special page: 0xcffff000
Calibrating delay loop... 530.84 BogoMIPS
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
PCI: Probing PCI hardware
Registering openpic with sysfs...
Using unsupported 1024x768 NVDA,Display-A at 94004000, depth=8, pitch=1024
fb0: Open Firmware frame buffer device on /pci@f0000000/NVDA,Parent@10/NVDA,Display-A@0
ikconfig 0.7 with /proc/config*
Initializing Cryptographic API
Console: switching to colour frame buffer device 128x48
pty: 256 Unix98 ptys configured
Generic RTC Driver v1.07
MacIO PCI driver attached to Intrepid chipset
PowerMac Z8530 serial driver version 2.0
tty00 at 0xd10c1020 (irq = 22) is a Z8530 ESCC
tty01 at 0xd10c8000 (irq = 23) is a Z8530 ESCC
Macintosh non-volatile memory driver v1.0
input: Macintosh mouse button emulation
apm_emu: APM Emulation 0.5 initialized.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PCI: Enabling device 0002:02:0d.0 (0000 -> 0002)
ide0: Found Apple UniNorth ATA-6 controller, bus ID 3
Probing IDE interface ide0...
hda: TOSHIBA MK4021GAS, ATA DISK drive
hda: Enabling Ultra DMA 5
Using anticipatory io scheduler
ide0 at 0xd10d0000-0xd10d0007,0xd10d0160 on irq 39
ide1: Found Apple KeyLargo ATA-3 controller, bus ID 0
Probing IDE interface ide1...
hdc: MATSHITADVD-R UJ-815, ATAPI CD/DVD-ROM drive
hdc: MDMA, cycleTime: 120, accessTime: 90, recTime: 30
hdc: Set MDMA timing for mode 2, reg: 0x00011d26
hdc: Enabling MultiWord DMA 2
ide1 at 0xd10d3000-0xd10d3007,0xd10d3160 on irq 24
hda: max request size: 128KiB
adb: starting probe task...
adb devices: [2]: 2 c3 [3]: 3 1 [7]: 7 1f
ADB keyboard at 2, handler 1
Detected ADB keyboard, type ANSI.
input: ADB keyboard on adb2:2.c3/input
input: ADB Powerbook buttons on adb7:7.1f/input
ADB mouse at 3, handler set to 4 (trackpad)
input: ADB mouse on adb3:3.01/input
adb: finished probe task...
hda: 78140160 sectors (40007 MB), CHS=65535/16/63, UDMA(100)
 hda: [mac] hda1 hda2 hda3 hda4 hda5 hda6 hda7 hda8 hda9 hda10 hda11 hda12 hda13 hda14
Console: switching to colour frame buffer device 128x48
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 16384)
NET: Registered protocol family 1
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 144k init 4k chrp 8k prep
Adding 524280k swap on /dev/hda10.  Priority:-1 extents:1
EXT3 FS on hda13, internal journal
sungem.c:v0.98 8/24/03 David S. Miller (davem@redhat.com)
eth0: Sun GEM (PCI) 10/100/1000BaseT Ethernet 00:0a:95:7f:e0:de 
eth0: Found BCM5221 PHY
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
drivers/usb/core/usb.c: registered new driver hid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
ohci1394: $Rev: 1045 $ Ben Collins <bcollins@debian.org>
PCI: Enabling device 0002:02:0e.0 (0000 -> 0002)
ohci1394_0: Unexpected PCI resource length of 1000!
ohci1394_0: OHCI-1394 1.1 (PCI): IRQ=[40]  MMIO=[f5000000-f50007ff]  Max Packet=[2048]
Found KeyWest i2c on "mac-io", 1 channel, stepping: 4 bits
Found KeyWest i2c on "uni-n", 2 channels, stepping: 4 bits
ieee1394: Host added: ID:BUS[0-00:1023]  GUID[000a95fffe7fe0de]
registering 0-0035
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected Apple UniNorth 2 chipset
agpgart: Maximum main memory to use for agp memory: 204M
agpgart: configuring for size idx: 4
agpgart: AGP aperture is 16M @ 0x0
ohci_hcd: 2003 Oct 13 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ohci_hcd: block sizes: ed 64 td 64
PCI: Enabling device 0001:01:18.0 (0000 -> 0002)
ohci_hcd 0001:01:18.0: OHCI Host Controller
ohci_hcd 0001:01:18.0: irq 27, pci mem d139a000
ohci_hcd 0001:01:18.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
PCI: Enabling device 0001:01:19.0 (0000 -> 0002)
ohci_hcd 0001:01:19.0: OHCI Host Controller
ohci_hcd 0001:01:19.0: irq 28, pci mem d13a2000
ohci_hcd 0001:01:19.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
PCI: Enabling device 0001:01:1a.0 (0000 -> 0002)
ohci_hcd 0001:01:1a.0: OHCI Host Controller
ohci_hcd 0001:01:1a.0: irq 29, pci mem d13a4000
ohci_hcd 0001:01:1a.0: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
hub 1-0:1.0: new USB device on port 2, assigned address 2
device-mapper: 4.0.0-ioctl (2003-06-04) initialised: dm@uk.sistina.com
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device dm-3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 600, max trans age 30
reiserfs: checking transaction log (dm-3) for (dm-3)
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device dm-0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 600, max trans age 30
reiserfs: checking transaction log (dm-0) for (dm-0)
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device dm-4, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 600, max trans age 30
reiserfs: checking transaction log (dm-4) for (dm-4)
Using r5 hash to sort names
found reiserfs format "3.6" with standard journal
Reiserfs journal params: device dm-5, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 600, max trans age 30
reiserfs: checking transaction log (dm-5) for (dm-5)
Using r5 hash to sort names
eth0: Link is up at 100 Mbps, full-duplex.
eth0: Pause is disabled
NET: Registered protocol family 17
process `named' is using obsolete setsockopt SO_BSDCOMPAT
process `lwresd' is using obsolete setsockopt SO_BSDCOMPAT
process `named' is using obsolete setsockopt SO_BSDCOMPAT
process `lwresd' is using obsolete setsockopt SO_BSDCOMPAT
nfs warning: mount version older than kernel
hda: Set PIO timing for mode 4, reg: 0x00758000
Oops: kernel access of bad area, sig: 11 [#1]
NIP: C00AB674 LR: C00AC2A0 SP: C0729A10 REGS: c0729960 TRAP: 0301    Not tainted
MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 0003E740, DSISR: 40000000
TASK = cfd810c0[378] 'bash' Last syscall: 195 
GPR00: C0729A58 C0729A10 CFD810C0 0003E740 FFFFFFFE C0194C30 00000000 0000000A 
GPR08: FFFFFFFF 0003E740 C00AC254 00000006 22028024 
Call trace:
 [c0018d50] printk+0x98/0x1a4
 [c00d2c50] submit_bio+0x110/0x130
 [c005ac38] submit_bh+0x1b4/0x1d0
 [c00586d8] __bread_slow+0xa0/0xfc
 [c0058a04] __bread+0x20/0x30
 [d14da4fc] search_by_key+0xa8/0x1e0c [reiserfs]
 [d14c26d0] reiserfs_read_locked_inode+0x68/0x110 [reiserfs]
 [d14c2820] reiserfs_iget+0x68/0xb8 [reiserfs]
 [d14bd61c] reiserfs_lookup+0x88/0x100 [reiserfs]
 [c0063da0] real_lookup+0x8c/0x14c
 [c0064110] do_lookup+0x68/0xd0
 [c00643f0] link_path_walk+0x278/0x908
 [c0064ddc] path_lookup+0x17c/0x190
 [c0064fd4] __user_walk+0x44/0x70
 [c005fb5c] vfs_stat+0x20/0x5c
init(1): dirtied page
init(1): dirtied page