Random KP

Super Hero
Posts: 13

Random KP

Hi,

I've been having a lot of kernel panics on the 9260 when I try to install packages using apt-get. here is an example:

Code:

GESBC:/# apt-get install v4l-conf
Reading package lists... Done
Building dependency tree... Done
The following extra packages will be installed:
defoma fontconfig-config libfontconfig1 libfreetype6 libice6 libsm6 libx11-6
libx11-data libxau6 libxaw7 libxdmcp6 libxext6 libxft2 libxinerama1 libxmu6
libxpm4 libxrandr2 libxrender1 libxt6 libxv1 libxxf86dga1 libxxf86vm1
ttf-dejavu ucf x11-common
Suggested packages:
defoma-doc psfontmgr x-ttcidfont-conf dfontmgr libfreetype6-dev
Recommended packages:
libft-perl debconf-utils
The following NEW packages will be installed:
defoma fontconfig-config libfontconfig1 libfreetype6 libice6 libsm6 libx11-6
libx11-data libxau6 libxaw7 libxdmcp6 libxext6 libxft2 libxinerama1 libxmu6
libxpm4 libxrandr2 libxrender1 libxt6 libxv1 libxxf86dga1 libxxf86vm1
ttf-dejavu ucf v4l-conf x11-common
0 upgraded, 26 newly installed, 0 to remove and 15 not upgraded.
Need to get 6043kB of archives.
After unpacking 14.5MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://ftp.us.debian.org etch/main x11-common 1:7.1.0-19 [338kB]
Get:2 http://ftp.us.debian.org etch/main libxau6 1:1.0.1-2 [6980B]
Get:3 http://ftp.us.debian.org etch/main libxdmcp6 1:1.0.1-2 [10.4kB]
Get:4 http://ftp.us.debian.org etch/main libx11-data 2:1.0.3-7 [157kB]
Get:5 http://ftp.us.debian.org etch/main libx11-6 2:1.0.3-7 [560kB]
Get:6 http://ftp.us.debian.org etch/main libfreetype6 2.2.1-5+etch3 [334kB]
Get:7 http://ftp.us.debian.org etch/main ucf 2.0020 [57.7kB]
Get:8 http://ftp.us.debian.org etch/main defoma 0.11.10-0.1 [100kB]
Get:9 http://ftp.us.debian.org etch/main ttf-dejavu 2.15-1 [3488kB]
59% [9 ttf-dejavu 2002674/3488kB 57%] 88.4kB/s 27s!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 817 [#1]
Modules linked in:
CPU: 0 Not tainted (2.6.25 #5)
PC is at __bug+0x20/0x2c
LR is at __resched_task+0x1c/0x20
pc : [<c002a870>] lr : [<c0037594>] psr: 60000093
sp : c02d1e68 ip : c02d6494 fp : c02d1e74
r10: 00000000 r9 : c02ec3f0 r8 : c7c3385c
r7 : c7d63260 r6 : c7d63260 r5 : a0000013 r4 : 27e070e3
r3 : 00000000 r2 : 00000000 r1 : 00000001 r0 : 00000020
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 0005317f Table: 27e54000 DAC: 00000017
Process swapper (pid: 0, stack limit = 0xc02d0268)
Stack: (0xc02d1e68 to 0xc02d2000)
1e60: c02d1e94 c02d1e78 c00808d4 c002a860 c02d1e94 27e070e3
1e80: 00000017 00000000 c02d1ec4 c02d1e98 c002c2a4 c0080868 00000000 c7c275c0
1ea0: c7d2fe5c 00008008 00000009 2002118c 41069265 20021158 c02d1ee4 c02d1ec8
1ec0: c01c2e7c c002c0f4 c02f164c c7d5fe00 00000000 00000000 c02d1f04 c02d1ee8
1ee0: c005f158 c01c2c60 c02d80d0 00000009 00000000 c02ec308 c02d1f1c c02d1f08
1f00: c0060a40 c005f124 00000009 c02d80d0 c02d1f3c c02d1f20 c0026048 c006097c
1f20: c02d1f44 ffffffff fefff000 00000009 c02d1f94 c02d1f40 c0026594 c0026010
1f40: 00000000 0005317f 0005217f 60000013 c0027fa4 c02d0000 c0027fa4 c02ec308
1f60: 2002118c 41069265 20021158 c02d1f94 600000d3 c02d1f88 c0027fe8 c0027ff4
1f80: 60000013 ffffffff c02d1fb4 c02d1f98 c0027e80 c0027fb4 c02f4034 c02ebec8
1fa0: c0022f28 c02d3d68 c02d1fc4 c02d1fb8 c02338a8 c0027e54 c02d1ff4 c02d1fc8
1fc0: c0008bc0 c0233868 c00083a4 00000000 00000000 c0022f28 00000000 00053175
1fe0: c02ec36c c002332c 00000000 c02d1ff8 20008034 c0008958 00000000 00000000
Backtrace:
[<c002a850>] (__bug+0x0/0x2c) from [<c00808d4>] (kfree+0x7c/0xcc)
[<c0080858>] (kfree+0x0/0xcc) from [<c002c2a4>] (dma_free_coherent+0x1c0/0x218)
r6:00000000 r5:00000017 r4:27e070e3
[<c002c0e4>] (dma_free_coherent+0x0/0x218) from [<c01c2e7c>] (at91_mci_irq+0x22)
[<c01c2c50>] (at91_mci_irq+0x0/0x2a8) from [<c005f158>] (handle_IRQ_event+0x44/)
r6:00000000 r5:00000000 r4:c7d5fe00
[<c005f114>] (handle_IRQ_event+0x0/0x84) from [<c0060a40>] (handle_level_irq+0x)
r7:c02ec308 r6:00000000 r5:00000009 r4:c02d80d0
[<c006096c>] (handle_level_irq+0x0/0xf0) from [<c0026048>] (asm_do_IRQ+0x48/0x7)
r5:c02d80d0 r4:00000009
[<c0026000>] (asm_do_IRQ+0x0/0x70) from [<c0026594>] (__irq_svc+0x34/0x60)
Exception stack(0xc02d1f40 to 0xc02d1f88)
1f40: 00000000 0005317f 0005217f 60000013 c0027fa4 c02d0000 c0027fa4 c02ec308
1f60: 2002118c 41069265 20021158 c02d1f94 600000d3 c02d1f88 c0027fe8 c0027ff4
1f80: 60000013 ffffffff
r6:00000009 r5:fefff000 r4:ffffffff
[<c0027fa4>] (default_idle+0x0/0x58) from [<c0027e80>] (cpu_idle+0x3c/0x58)
[<c0027e44>] (cpu_idle+0x0/0x58) from [<c02338a8>] (rest_init+0x50/0x60)
r7:c02d3d68 r6:c0022f28 r5:c02ebec8 r4:c02f4034
[<c0233858>] (rest_init+0x0/0x60) from [<c0008bc0>] (start_kernel+0x278/0x2e4)
[<c0008948>] (start_kernel+0x0/0x2e4) from [<20008034>] (0x20008034)
Code: e1a01000 e59f000c eb004aac e3a03000 (e5833000)
Kernel panic - not syncing: Fatal exception in interrupt

I've read that NULL pointer deref is caused when I'm out of memory; however I have 128mb on a 9260. Any help is appreciated.

Thanks,

« Last Edit: March 02, 2009, 11:21:01 PM by Rahim Pardhan »

March 03, 2009, 10:59:06 AM

#1

admin

admin

Administrator
Super Hero
Posts: 342

Re: Random KP

The standard GESBC-9260 has 64MB SDRAM. The NAND FLASH is 128MB which is used as file storgae. Please check your file system size if you have Debian installed in the on-board NAND FLASH. If you use the tmpfs JFFS2 work around for Debian apt-get it will use SDRAM as cache so it could exhaust your system memory.

March 03, 2009, 11:14:12 PM

#2

Rahim Pardhan

Rahim Pardhan

Super Hero
Posts: 13

Re: Random KP

Hi,

I got the 9260 configured with 128MB SDRAM (I paid extra) I have debian installed on a 2.0GB SD Card and am booting off it. The filesystem on the SD card is ext2. I have the kernel in the NAND.

Thanks,

Rahim

March 04, 2009, 11:04:49 AM

#3

admin

admin

Administrator
Super Hero
Posts: 342

Re: Random KP

What is the version of the kernel? Attached is 2.6.27.4. You can give it a try to see if it fixes your problem.

uImage (1447.56 KB - downloaded 51 times.)

March 04, 2009, 11:03:21 PM

#4

Rahim Pardhan

Rahim Pardhan

Super Hero
Posts: 13

Re: Random KP

Also I am trying to get V4L2 with the GSPCA_ZC3XX driver working on the 9260. The newest kernel 2.6.28 supports this (offers this as a module compile option), and would greatly simplify my life. Can you please provide the patch and the config file for this kernel?

I have established that the driver does not exist in the 2.6.27 mainline, but IS rolled into 2.6.28.

Thanks,

Rahim

« Last Edit: March 05, 2009, 12:00:40 AM by Rahim Pardhan »

March 05, 2009, 08:20:36 AM

#5

admin

admin

Administrator
Super Hero
Posts: 342

Re: Random KP

Patches can be found at http://maxim.org.za/at91_26.html

March 05, 2009, 10:07:41 AM

#6

Rahim Pardhan

Rahim Pardhan

Super Hero
Posts: 13

Re: Random KP

Thanks,

What about the config file?

March 05, 2009, 10:13:54 AM

#7

admin

admin

Administrator
Super Hero
Posts: 342

Re: Random KP

The patched kernel source should have the default configuration file for AT91SAM9260-EK.

March 05, 2009, 02:00:01 PM

#8

Rahim Pardhan

Rahim Pardhan

Super Hero
Posts: 13

Re: Random KP

Hi,

I'm trying to cross compile this using the cross compiler posted in the Building Kernel thread. I'm compiling this on ubuntu. I'm getting an error "make: arm-unknown-linux-gnu-gcc: Command not found" Please see attached code

Thanks

Code:

rahim@rahim-laptop:~/Desktop/linux-2.6.28$ export PATH=$PATH:/home/rahim/Desktop/usr/local/arm/gcc-4.2.3-glibc-2.3.3/arm-unknown-linux-gnu/arm-unknown-linux-gnu/bin/
rahim@rahim-laptop:~/Desktop/linux-2.6.28$ sudo make ARCH=arm CROSS_COMPILE=arm-unknown-linux-gnu-
make: arm-unknown-linux-gnu-gcc: Command not found
CHK include/linux/version.h
make[1]: `include/asm-arm/mach-types.h' is up to date.
CHK include/linux/utsrelease.h
SYMLINK include/asm -> include/asm-arm
CC kernel/bounds.s
/bin/sh: arm-unknown-linux-gnu-gcc: not found
make[1]: *** [kernel/bounds.s] Error 127
make: *** [prepare0] Error 2
rahim@rahim-laptop:~/Desktop/linux-2.6.28$

EDIT: I fixed my path to the cross compileer and it is now compiling...

« Last Edit: March 05, 2009, 03:00:20 PM by Rahim Pardhan »

March 05, 2009, 07:57:33 PM

#9

Rahim Pardhan

Rahim Pardhan

Super Hero
Posts: 13

Re: Random KP

I have downloaded the patch file and patched the kernel. Then I enabled V4L and GSPCA in the kernel menu config. I compiled the kernel using the provided cross compiler. When I flash the kernel to the board and reboot it hangs at "Starting Kernel..."

Is it okay to use the default menuconfig options from the vanilla 2.6.28 kernel? Is there no specific config file required? I remember there was a special config file for 2.6.25 posted. Is it at all possible to use that 2.6.25 config for the 2.6.28 kernel (I suspect not, but what's the best way to get this going?)

Any help is GREATLY appreciated.

Thanks,

Rahim

March 06, 2009, 09:20:11 AM

#10

admin

admin

Administrator
Super Hero
Posts: 342

Re: Random KP

You can use the default configuration for AT91SAM9260-ek or use the 2.6.25 kernel configuration posted in the forum. The kernel configuration process will ask for your selection for new configuration items when you use the configuration file for an older version of kernel.

March 06, 2009, 09:49:22 AM

#11

Rahim Pardhan

Rahim Pardhan

Quote from: admin on March 06, 2009, 09:20:11 AM

Super Hero
Posts: 13

Re: Random KP

You can use the default configuration for AT91SAM9260-ek or use the 2.6.25 kernel configuration posted in the forum. The kernel configuration process will ask for your selection for new configuration items when you use the configuration file for an older version of kernel.

To do this, do I just apply the patch posted at http://maxim.org.za/at91_26.html Will that give me the config I need? OR do I have to download a .config from somewhere?

Thanks,

Rahim

March 06, 2009, 09:54:54 AM

#12

admin

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