[ARMedslack] Dreamplug: ERROR: Root partition has already been mounted read-write. Cannot check!

Sun Apr 8 12:11:32 UTC 2012

Hi,

yes i have set the wrong uboot var, but when i append ro to the right var,
the system won't boot, the services cannot start because of ro system.

but forgot about this error, i have build a new minirootfs with the
buildscript, and installed the new rootfs to the dreamplug.

I can boot into the system, no ro error , and i have not set the uboot vars
to ro.

but  i get  a kernel oops during boot, and the boot hangs for some time.
(see attached oops.txt)
i think this come from missing modules.

On Sun, Apr 8, 2012 at 10:53 AM, Davide <louigi600 at yahoo.it> wrote:

>
> I'd bet on "ro" missing on cmdline.
>
>
>
> ------------------------------
> Il dom 8 apr 2012 10:21 CEST, Stuart Winter ha scritto:
>
> >
> >>
> >> What does this output?
> >>
> >>
> >> cat /proc/cmdline
> >>
> >
> >If this is the case, go into u-boot and do:
> >printenv
> >
> >and match the values found in /proc/cmdline and you should be able to
> >identify which u-boot variable needs altering.
> >
> >--
> >Stuart Winter
> >Slackware ARM: www.armedslack.org
> >_______________________________________________
> >ARMedslack mailing list
> >ARMedslack at lists.armedslack.org
> >http://lists.armedslack.org/mailman/listinfo/armedslack
>
> _______________________________________________
> ARMedslack mailing list
> ARMedslack at lists.armedslack.org
> http://lists.armedslack.org/mailman/listinfo/armedslack
>
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ata1: SATA max UDMA/133 irq 21
cfg80211: Calling CRDA to update world regulatory domain
Bluetooth: Core ver 2.16
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
ata1: SATA link down (SStatus 0 SControl F300)
Bluetooth: SCO socket layer initialized
Bluetooth: vendor=0x2df, device=0x9105, class=255, fn=2
Bluetooth: sbi_interrupt(df077c00) card or priv is NULL, card=df3af840

libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
Bluetooth: request_firmware(helper) failed, error code = -2
Bluetooth: Failed to download helper!
Bluetooth: Downloading firmware failed!
usbcore: registered new interface driver snd-usb-audio
libertas_sdio: failed to find firmware (-2)
libertas_sdio: probe of mmc0:0001:1 failed with error -2
uap_probe: vendor=0x02DF device=0x9104 class=0 function=1
------------[ cut here ]------------
WARNING: at drivers/mmc/core/core.c:465 mmc_wait_for_cmd+0x3c/0x78()
Modules linked in: uap8xxx(+) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq_device snd_pcm snd_page_alloc snd_timer snd libertas_sdio btmrvl_sdio btmrvl libertas bluetooth soundcore cfg80211 rfkill sata_mv
[<c000d34c>] (unwind_backtrace+0x0/0xe0) from [<c00154c8>] (warn_slowpath_common+0x4c/0x64)
[<c00154c8>] (warn_slowpath_common+0x4c/0x64) from [<c00154f8>] (warn_slowpath_null+0x18/0x1c)
[<c00154f8>] (warn_slowpath_null+0x18/0x1c) from [<c02e1448>] (mmc_wait_for_cmd+0x3c/0x78)
[<c02e1448>] (mmc_wait_for_cmd+0x3c/0x78) from [<c02e8e00>] (mmc_io_rw_direct_host+0xac/0x110)
[<c02e8e00>] (mmc_io_rw_direct_host+0xac/0x110) from [<c02e9e88>] (sdio_readb+0x3c/0x5c)
[<c02e9e88>] (sdio_readb+0x3c/0x5c) from [<bf12013c>] (sbi_interrupt+0xa4/0x1e4 [uap8xxx])
[<bf12013c>] (sbi_interrupt+0xa4/0x1e4 [uap8xxx]) from [<c02ea738>] (sdio_irq_thread+0x74/0x234)
[<c02ea738>] (sdio_irq_thread+0x74/0x234) from [<c003274c>] (kthread+0x84/0x90)
[<c003274c>] (kthread+0x84/0x90) from [<c00095a4>] (kernel_thread_exit+0x0/0x8)
---[ end trace e5bcda0b6bb19a49 ]---
------------[ cut here ]------------
WARNING: at drivers/mmc/core/core.c:210 __mmc_start_req+0x74/0x140()
Modules linked in: uap8xxx(+) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq_device snd_pcm snd_page_alloc snd_timer snd libertas_sdio btmrvl_sdio btmrvl libertas bluetooth soundcore cfg80211 rfkill sata_mv
[<c000d34c>] (unwind_backtrace+0x0/0xe0) from [<c00154c8>] (warn_slowpath_common+0x4c/0x64)
[<c00154c8>] (warn_slowpath_common+0x4c/0x64) from [<c00154f8>] (warn_slowpath_null+0x18/0x1c)
[<c00154f8>] (warn_slowpath_null+0x18/0x1c) from [<c02e1220>] (__mmc_start_req+0x74/0x140)
[<c02e1220>] (__mmc_start_req+0x74/0x140) from [<c02e13fc>] (mmc_wait_for_req+0x10/0x20)
[<c02e13fc>] (mmc_wait_for_req+0x10/0x20) from [<c02e1470>] (mmc_wait_for_cmd+0x64/0x78)
[<c02e1470>] (mmc_wait_for_cmd+0x64/0x78) from [<c02e8e00>] (mmc_io_rw_direct_host+0xac/0x110)
[<c02e8e00>] (mmc_io_rw_direct_host+0xac/0x110) from [<c02e9e88>] (sdio_readb+0x3c/0x5c)
[<c02e9e88>] (sdio_readb+0x3c/0x5c) from [<bf12013c>] (sbi_interrupt+0xa4/0x1e4 [uap8xxx])
[<bf12013c>] (sbi_interrupt+0xa4/0x1e4 [uap8xxx]) from [<c02ea738>] (sdio_irq_thread+0x74/0x234)
[<c02ea738>] (sdio_irq_thread+0x74/0x234) from [<c003274c>] (kthread+0x84/0x90)
[<c003274c>] (kthread+0x84/0x90) from [<c00095a4>] (kernel_thread_exit+0x0/0x8)
---[ end trace e5bcda0b6bb19a4a ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 80000005 [#1] PREEMPT
Modules linked in: uap8xxx(+) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq_device snd_pcm snd_page_alloc snd_timer snd libertas_sdio btmrvl_sdio btmrvl libertas bluetooth soundcore cfg80211 rfkill sata_mv
CPU: 0    Tainted: G        W     (3.3.1 #5)
PC is at 0x0
LR is at __mmc_start_req+0x12c/0x140
pc : [<00000000>]    lr : [<c02e12d8>]    psr: 60000013
sp : de4bdec8  ip : 40000013  fp : 00000000
r10: 00000a00  r9 : 00000a00  r8 : 00000001
r7 : de4bdf77  r6 : 00000000  r5 : de521800  r4 : de4bdee8
r3 : 00000000  r2 : 00000000  r1 : de4bdee8  r0 : de521800
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 0005397f  Table: 1f340000  DAC: 00000017
Process ksdioirqd/mmc0 (pid: 798, stack limit = 0xde4bc270)
Stack: (0xde4bdec8 to 0xde4be000)
dec0:                   de4bdee8 de521800 00000000 c02e13fc de4bdf18 de521800
dee0: 00000000 c02e1470 00000000 de4bdf18 00000000 00000000 00000000 de4bdefc
df00: de4bdefc c02e11a4 de521800 00000a00 00000a00 c02e8e00 00000034 00000a00
df20: 00000000 00000000 00000000 00000000 00000195 00000000 00000000 00000000
df40: 00000000 de4bdee8 de4bdf84 df077a00 de520000 00000001 00000000 00000000
df60: 00000000 c02e9e88 00000000 de4bdf77 de4bdf84 00000007 df3482e0 bf12013c
df80: df077a00 00000000 df8fb800 7fffffff df8d0400 c02ea738 df2fdd48 c02ea6c4
dfa0: 00000001 00000000 00000000 df2fdd38 df8fb800 c02ea6c4 00000013 00000000
dfc0: 00000000 00000000 00000000 c003274c 00000000 00000000 df8fb800 00000000
dfe0: de4bdfe0 de4bdfe0 df2fdd38 c00326c8 c00095a4 c00095a4 00000000 00000000
[<c02e12d8>] (__mmc_start_req+0x12c/0x140) from [<c02e13fc>] (mmc_wait_for_req+0x10/0x20)
[<c02e13fc>] (mmc_wait_for_req+0x10/0x20) from [<c02e1470>] (mmc_wait_for_cmd+0x64/0x78)
[<c02e1470>] (mmc_wait_for_cmd+0x64/0x78) from [<c02e8e00>] (mmc_io_rw_direct_host+0xac/0x110)
[<c02e8e00>] (mmc_io_rw_direct_host+0xac/0x110) from [<c02e9e88>] (sdio_readb+0x3c/0x5c)
[<c02e9e88>] (sdio_readb+0x3c/0x5c) from [<bf12013c>] (sbi_interrupt+0xa4/0x1e4 [uap8xxx])
[<bf12013c>] (sbi_interrupt+0xa4/0x1e4 [uap8xxx]) from [<c02ea738>] (sdio_irq_thread+0x74/0x234)
[<c02ea738>] (sdio_irq_thread+0x74/0x234) from [<c003274c>] (kthread+0x84/0x90)
[<c003274c>] (kthread+0x84/0x90) from [<c00095a4>] (kernel_thread_exit+0x0/0x8)
Code: bad PC value
---[ end trace e5bcda0b6bb19a4b ]---