Curious... why is the device being remounted readonly?
> This board is using kernel 2.6.21.1 with balloon mods
> (http://balloonboard.org/cgi-bin/viewcvs.cgi/balloon/trunk/kernel/ )
> with what appears to be a yaffs around this vintage:
> "$Id: yaffs_fs.c,v 1.59 2007/03/20 20:59:40 charles Exp $"
> "$Id: yaffs_guts.c,v 1.48 2007/03/12 20:55:39 charles Exp $";
> (see
> http://balloonboard.org/cgi-bin/viewcvs.cgi/balloon/trunk/kernel/2.6.21.yaf
>fs.patch?rev=163&view=log )
>
> It has a 1GB yaffs partition and after a couple of weeks use
> (generally just being turned off, not unmounted) seems to
> have got itself in a state where the checkpointing code oopses the
> kernel (see log below).
>
> I should have this on my desk shortly. Anyone got any suggestions what
> might have gone wrong, as it would be good to avoid this, and I want
> to give it an analyse?
>
>
> ----- Forwarded message from His Majesty <balakkvj@gmail.com> -----
>
> From: His Majesty <balakkvj@gmail.com>
> Date: Mon, 30 Jul 2007 12:38:25 +0100
> To: Wookey <wookey@aleph1.co.uk>
> Subject: Achtung... Achtung .... Balloon would not boot up.
> Reply-To: b.kolluru@dcs.shef.ac.uk
> X-Spam-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,HTML_10_20,
> HTML_MESSAGE autolearn=no version=3.1.7-deb, No
>
> Hi Wookey,
> It was good on friday when I switched it off.
> However, the balloon wouldnot boot up this morning!!
> Eagerly await your response.
> This is the message I get on screen:
>
> ....
> DUCK
> VRSN
> FFFFFFF9
> STKP
> A39F3FF0
> &_start=00000000
> FLASH_BASE=00000000
> Large memory model selected, bank size 256Mbytes
> Bank 0: A0000000-A7FFFFFC (128Mbytes), bank not full
> Bank 1: B0000000-B7FFFFFC (128Mbytes), bank not full
> Bank 2: 90000000: no RAM found
> Bank 3: 80000000-87FFFFFC (128Mbytes), bank not full
>
> enabling mmu
> FLASH_BASE=00000000
> PXA: Evacuating 1MB of Flash to DRAM at: A3E00000
> done
> Map Flash virtual section to DRAM at: A3E00000
> MMU table entries
> 00000000 A3E00C0A
> ...
> Using bit swapping...
> Programming Device...
> FPGA image size (bytes)=0x000625F8
> FPGA Device Programmed OK
> FPGA Version 0x
> 000000FF
> Set 0x00000080
> Clr 0x00000100
> FPGA initialised
> Peripheral Power established
> Scanning for nand chips at 0x10E00000
> Found MTDs: 0x00000001
> Flash style = 1x16
> verify flash size...
> No non-CFI chip detected. Ignoring fake CFI table.
> Resetting flash algorithm.
> re-verifying flash size...
> btflash_init: mfrid=00000004
> devid=000022D7
> mfrid=00000004
> deviceid=000022D7
> walking flash descriptors (1x16)
> btflash_init: found flash MBM29LV650UE_1x16
> flashDescriptor=000323A4
> flashSectors=00032074
> nsectors=00000080
> flash_size=00800000
> flash_address_mask=007FFFFF
> protecting the bootldr
> amdFlashProtectRange: unimplemented!!
> root partition size set to 0x3FC00000
> mach_type ->00000405
> reset_partitions: partition_table = 0x00000000
> reset_partitions: flashDescriptor = 0x000323A4
> define_partition: base 0x00000000
> define_partition: partition_table 0x00000000
> allocated partition_table
> defining partition: bootldr
> define_partition: base 0x00100000
> define_partition: partition_table 0xA3A01AB4
> defining partition: fpga
> define_partition: base 0x00200000
> define_partition: partition_table 0xA3A01AB4
> defining partition: kernel
> define_partition: base 0x00000000
> define_partition: partition_table 0xA3A01AB4
> defining partition: boot
> define_partition: base 0x00400000
> define_partition: partition_table 0xA3A01AB4
> defining partition: root
> initialize_by_mach_type done
> probing ram
> Probing bank0 memory size...
> max memory size is 0x10000000
>
> bank0 memory size=08000000
> MDCNFG=89D309D3
> dram_size_ptr=00034590
> Probing memory size bank 0
> dram_base=A0000000
> memory size=08000000
> dram_size_ptr=000345A4
> Probing memory size bank 1
> dram_base=B0000000
> memory size=08000000
> dram_size_ptr=000345B8
> Probing memory size bank 2
> dram_base=90000000
> seems to be no dram in bank 2
> dram_size_ptr=000345CC
> Probing memory size bank 3
> dram_base=80000000
> memory size=08000000
> n_banks=00000003
> dram_sizes[0]=08000000
> dram_sizes[1]=08000000
> dram_sizes[2]=FFFFFFFF
> dram_sizes[3]=08000000
> SDRAM size: 0x08000000
> in megs: 128M
> set_params_by_name 1
> get_param: could not find parameter rootfs
> partition <root> deleted
> define_partition: base 0x00400000
> define_partition: partition_table 0xA3A01AB4
> defining partition: root
> MTD device not found ...
> yaffs_mount(/boot) ok
>
> >> Compaq OHH BootLoader, Rev 2-21-13-tcl36 for Balloon
>
> [LARGE_MEMORY_MODEL] [B]>> 07-05-27_14:44
>
> >> Last link date: Fri Jun 29 08:44:10 UTC 2007
> >> Contact: [1]bootldr@handhelds.org
>
> Cpu company: INTEL
> Cpu Architecture: XScale
> Cpu Part: PXA270
>
> >> ARM Processor Rev=00050000
> >> (c) 2000-2001 Compaq Computer Corporation, provided with NO WARRANTY
>
> under t.>> See [2]http://www.handhelds.org/bootldr/ for full license and
> sourcesPress Retuu
> params_eval: prefix_in =bootldr:
> params_eval: just_show =00000000
> RXSTAT error: 000000FF
> booting yaffs...
> Rootfs is "yaffs2"
> Kernel filesize = 0x0012F780
> Booting file "/boot/zImage"...
> kernel partition base A0008000
> kernel_magic=E1A00000
> kernel_region_words[9]=016F2818
> Linux ELF flash_imgstart=A0008000 size=0012F780 dest=A0000000
> offset=00008000
> MMU Control=00000079
> MMU PIDVAM=00000000
> copying Linux kernel ... done
> A0008000: E1A00000
> A0008004: E1A00000
> A0008008: E1A00000
> A000800C: E1A00000
> A0008010: E1A00000
> A0008014: E1A00000
> A0008018: E1A00000
> A000801C: E1A00000
> A0008020: EA000002
> A0008024: 016F2818
> root_filesystem_name=yaffs2
> Grabbed linuxargs, argc = 00000003
> Using mach_type 00000405
> pre unparse setting boot parameters to
> noinitrd root=/dev/mtdblock1 init=/linuxrc console=ttyS2,115200
> setting boot parameters to
> noinitrd root=/dev/mtdblock1 init=/linuxrc console=ttyS2,115200
> Making core tag at A0000100
> Making cmdline tag at A0000114
> Making mem32 tag at A00001C8
> Making mem32 tag at A00001D8
> Making mem32 tag at A00001E8
> command line is: noinitrd root=/dev/mtdblock1 init=/linuxrc
> console=ttyS2,1152
> linuxEntryPoint=A0008000
> Booting Linux image
> Uncompressing
> Linux.............................................................Linux
> version 2.6.21.1-pxa270 (wookey@eisluft) (gcc version 4.1.2 20061115
> (pre7CPU: XScale-PXA270 [69054114] revision 4 (ARMv5TE), cr=0000397f
> Machine: Balloon3
> Memory policy: ECC disabled, Data cache writeback
> Running balloon3_map_io()
> calling pxa_map_io()
> Run Mode clock: 208.00MHz (*16)
> Turbo Mode clock: 520.00MHz (*2.5, active)
> Memory clock: 104.00MHz (/2)
> System bus clock: 104.00MHz
> pxa_map_io() done
> iotable_init() done
> CPU0: D VIVT undefined 5 cache
> CPU0: I cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets
> CPU0: D cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets
> Built 1 zonelists. Total pages: 64768
> Kernel command line: noinitrd root=/dev/mtdblock1 init=/linuxrc
> console=ttyS2,
> balloon3_init_irq: chained handler installed - irq 126 automatically
> enabled
> PID hash table entries: 1024 (order: 10, 4096 bytes)
> Console: colour dummy device 80x30
> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Memory: 128MB 128MB 0MB = 256MB total
> Memory: 257152KB available (2244K code, 183K data, 92K init)
> Mount-cache hash table entries: 512
> CPU: Testing write buffer coherency: ok
> NET: Registered protocol family 16
> Running balloon3_init()
> NET: Registered protocol family 2
> Time: pxa_timer clocksource has been installed.
> IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
> TCP established hash table entries: 8192 (order: 4, 65536 bytes)
> TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
> TCP: Hash tables configured (established 8192 bind 8192)
> TCP reno registered
> NetWinder Floating Point Emulator V0.97 (double precision)
> VFS: Disk quotas dquot_6.5.1
> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> yaffs Jul 3 2007 14:42:23 Installing.
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> io scheduler deadline registered
> io scheduler cfq registered
> balloon3_backlight_power: power is on
> Console: switching to colour frame buffer device 60x40
> pxa2xx-uart.0: ttyS0 at MMIO 0x40100000 (irq = 22) is a FFUART
> pxa2xx-uart.1: ttyS1 at MMIO 0x40200000 (irq = 21) is a BTUART
> pxa2xx-uart.2: ttyS2 at MMIO 0x40700000 (irq = 20) is a STUART
> NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB
> 3,3V 8-b)4 NAND chips detected
> Scanning device for bad blocks
> Bad eraseblock 2590 at 0x143c0000
> Bad eraseblock 3937 at 0x1ec20000
> Bad eraseblock 5984 at 0x2ec00000
> cmdlinepart partition parsing not available
> Creating 2 MTD partitions on "balloon3-nand":
> 0x00000000-0x00400000 : "Boot"
> 0x00400000-0x40000000 : "Root fs"
> mice: PS/2 mouse device common for all mice
> TCP cubic registered
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> XScale iWMMXt coprocessor detected.
> yaffs: dev is 32505857 name is "mtdblock1"
> yaffs: Attempting MTD mount on 31.1, "mtdblock1"
> block 2559 is bad
> block 3906 is bad
> block 5953 is bad
> Freechunks verification failure 485768 242888 242880
> VFS: Mounted root (yaffs2 filesystem).
> Freeing init memory: 92K
> Failed to execute /linuxrc. Attempting defaults...
> INIT: version 2.86 booting
> Starting the hotplug events dispatcher: udevd.
> Synthesizing the initial hotplug events...done.
> Waiting for /dev to be fully populated...done.
> Activating swap...done.
> Unable to handle kernel NULL pointer dereference at virtual address
> 00000000
> pgd = d72e4000
> [00000000] *pgd=b7233031, *pte=00000000, *ppte=00000000
> Internal error: Oops: 17 [#1]
> Modules linked in:
> CPU: 0
> PC is at yaffs_CheckpointClose+0x2c/0x184
> LR is at yaffs_CheckpointSave+0x7c/0x434
> pc : [<c00e8c44>] lr : [<c00e6c50>] Not tainted
> sp : d6c2fd3c ip : d6c2fd5c fp : d6c2fd58
> r10: c0744000 r9 : 00000000 r8 : c025cd18
> r7 : 00000000 r6 : d724d000 r5 : c0744000 r4 : 00000000
> r3 : 0000000e r2 : 00000000 r1 : 00000000 r0 : 00000000
> Flags: nzCv IRQs on FIQs on Mode SVC_32 Segment user
> Control: 397F
> Table: B72E4000 DAC: 00000015
> Process mount (pid: 1410, stack limit = 0xd6c2e258)
> Stack: (0xd6c2fd3c to 0xd6c30000)
> fd20:
> 00000000
> fd40: c03b9280 d724d000 00000000 d6c2fdc8 d6c2fd5c c00e6c50 c00e8c24
> 3fc00000
> ...
> ...
> ffe0: 400ee1d0 bead5af4 0000aa58 400ee1dc 60000010 000242a8 00000000
> 00000000
>
> Backtrace:
> [<c00e8c18>] (yaffs_CheckpointClose+0x0/0x184) from [<c00e6c50>]
> (yaffs_Checkpo) r7 = 00000000 r6 = D724D000 r5 = C03B9280 r4 =
> 00000000 [<c00e6bd4>] (yaffs_CheckpointSave+0x0/0x434) from [<c00ddb7c>]
> (yaffs_remount_)[<c00ddb30>] (yaffs_remount_fs+0x0/0xac) from [<c007e424>]
> (do_remount_sb+0xf8/) r5 = 00000000 r4 = C0444400
> [<c007e32c>] (do_remount_sb+0x0/0x160) from [<c0094a98>]
> (do_mount+0x19c/0x5e0)
> r6 = C0444400 r5 = 00000021 r4 = C044443C
> [<c00948fc>] (do_mount+0x0/0x5e0) from [<c0094f68>]
> (sys_mount+0x8c/0xd4) [<c0094edc>] (sys_mount+0x0/0xd4) from [<c001fbc0>]
> (ret_fast_syscall+0x0/0x2c)
> r7 = 00000015 r6 = 00000000 r5 = 000242F8 r4 = 000242F8
> Code: e59030e8 e3530000 da00004f e59000f8 (e5904000)
> BUG: at kernel/exit.c:861 do_exit()
> /etc/rcS.d/S10checkroot.sh: line 24: 1410 Segmentation fault mount
> -n -o /
>
> --
> BalaKrishna Kolluru
>
> References
>
> Visible links
> 1. mailto:bootldr@handhelds.org
> 2. http://www.handhelds.org/bootldr/
>
> ----- End forwarded message -----
> Wookey
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