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[FIXED] Kernel Panic with SD

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DrEagle

Post subject: [FIXED] Kernel Panic with SD

Posted: Sat Nov 12, 2011 3:21 am

Joined:
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Posts:
55
Location:
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Hi,

I use a smarttop and have build a armhf debian sid.
I get a Kernel Panic when trying to bootup.

Code:

[   61.778532] Kernel panic - not syncing: Attempted to kill init!
[   61.784561] [<c0031fac>] (unwind_backtrace+0x0/0xe4) from [<c02976bc>] (panic+0x50/0x178)
[   61.792777] [<c02976bc>] (panic+0x50/0x178) from [<c0048bfc>] (do_exit+0xb8/0x698)
[   61.800352] [<c0048bfc>] (do_exit+0xb8/0x698) from [<c0049478>] (do_group_exit+0x7c/0xac)
[   61.808557] [<c0049478>] (do_group_exit+0x7c/0xac) from [<c005606c>] (get_signal_to_deliver+0x378/0x3b8)
[   61.818062] [<c005606c>] (get_signal_to_deliver+0x378/0x3b8) from [<c002eefc>] (do_signal+0xb0/0x59c)
[   61.827301] [<c002eefc>] (do_signal+0xb0/0x59c) from [<c002f908>] (do_notify_resume+0x18/0x5c)
[   61.835929] [<c002f908>] (do_notify_resume+0x18/0x5c) from [<c002c5d8>] (work_pending+0x24/0x28)

Is this a known bug ?
Is there a workaround or a fix ?

[:-]

Last edited by DrEagle on Sun Nov 27, 2011 7:11 am, edited 1 time in total.

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PurpleAlien

Post subject:

Posted: Sat Nov 12, 2011 6:43 pm

Genesi

Joined:
Mon Jan 30, 2006 2:28 am
Posts:
409
Location:
Finland

Hi.

Have you tried using the ARMHF SD card image we have here:
http://www.powerdeveloper.org/platforms/efikamx/linux

If that works, try replacing the filesystem on it with yours and see if that boots.

Johan.

Johan Dams, Genesi USA Inc.
Director, Software Engineering

Yep, I have a blog... PurpleAlienPlanet

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DrEagle

Post subject:

Posted: Sun Nov 13, 2011 12:58 pm

Joined:
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55
Location:
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PurpleAlien wrote:

Will give a try, thanks...

[:-]

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DrEagle

Post subject:

Posted: Sun Nov 20, 2011 7:21 am

Joined:
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Location:
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Efika SmartTop not booting in debian armhf :

DrEagle wrote:

PurpleAlien wrote:

Will give a try, thanks...

This give nothing : Not booting at all on the debian armhf-3d

Code:

Starting kernel ...                                                                                                                       
                                                                                                                                          
Uncompressing Linux.......................................................................................................................
[    0.000000] Initializing cgroup subsys cpuset                                                                                          
[    0.000000] Linux version 2.6.31.14.25-efikamx (root@samwise.lan) (gcc version 4.6.1 (Debian 4.6.1-11) ) #1 Wed Sep 21 22:16:42 EEST 21
[    0.000000] CPU: ARMv7 Processor [412fc085] revision 5 (ARMv7), cr=10c53c7f                                                            
[    0.000000] CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache                                                       
[    0.000000] Machine: Genesi Efika MX (Smarttop)                                                                                        
[    0.000000] Memory policy: ECC disabled, Data cache writeback                                                                          
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 117856                                                
[    0.000000] Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw video=imx-ipuv3-fb:1024x600M-16@60 rootfstype=6
[    0.000000] PID hash table entries: 2048 (order: 11, 8192 bytes)                                                                       
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)                                                            
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)                                                             
[    0.000000] Memory: 464MB = 464MB total                                                                                                
[    0.000000] Memory: 462220KB available (3496K code, 596K data, 140K init, 0K highmem)                                                  
[    0.000000] SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1                                                    
[    0.000000] Hierarchical RCU implementation.                                                                                           
[    0.000000] NR_IRQS:368                                                                                                                
[    0.000000] MXC IRQ initialized                                                                                                        
[    0.000000] MXC_Early serial console at MMIO 0x73fbc000 (options '115200')                                                             
[    0.000000] console [ttymxc0] enabled                                                                                                  
[    0.000000] Console: colour dummy device 80x30                                                                                         
[    0.000000] Calibrating delay loop (skipped) preset value.. 799.53 BogoMIPS (lpj=3997696)                                              
[    0.000000] Mount-cache hash table entries: 512                                                                                        
[    0.000000] Initializing cgroup subsys ns                                                                                              
[    0.000000] Initializing cgroup subsys freezer                                                                                         
[    0.000000] Initializing cgroup subsys net_cls                                                                                         
[    0.000000] CPU: Testing write buffer coherency: ok                                                                                    
[    0.000000] devtmpfs: initialized                                                                                                      
[    0.000000] regulator: core version 0.5                                                                                                
[    0.000000] NET: Registered protocol family 16                                                                                         
[    0.000000] i.MX IRAM pool: 128 KB@0x9d840000                                                                                          
[    0.000000] IRAM READY                                                                                                                 
[    0.000000] CPU is i.MX51 Revision 3.0                                                                                                 
[    0.000000] MXC GPIO hardware                                                                                                          
[    0.000000] Efika MX: mmc0 configured as external SDHC                                                                                 
[    0.000000] Efika MX: Smarttop Revision 1.3                                                                                            
[    0.000000] Using SDMA I.API                                                                                                           

With cloning my rootfs, I get the same results of Kernel Panic !

Will give a try to the Efika SmartBook MX...

[:-]

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DrEagle

Post subject:

Posted: Mon Nov 21, 2011 2:10 pm

Joined:
Fri Oct 28, 2011 6:47 am
Posts:
55
Location:
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The lasts tests give no success at all in armel also.

I upgrade multistrap from debian/sid and rebuilt my debian for armhf (sid) and armel (squeeze and wheezy).

I get errors and always get Kernel Panic at the ramdisk loading.

[:-]

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DrEagle

Post subject:

Posted: Sat Nov 26, 2011 10:24 am

Joined:
Fri Oct 28, 2011 6:47 am
Posts:
55
Location:
Terre

DrEagle wrote:

I get errors and always get Kernel Panic at the ramdisk loading.

Code:

[    0.282373] Unpacking initramfs...
[    0.282390] Initramfs unpacking failed: junk in compressed archive

any advice about this error ?

[:-]

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PurpleAlien

Post subject:

Posted: Sat Nov 26, 2011 2:10 pm

Genesi

Joined:
Mon Jan 30, 2006 2:28 am
Posts:
409
Location:
Finland

Hi.

How did you generate your kernel and initrd?
On Ubuntu (and Debian) you would do something like the following from within the kernel source directory:

Code:

cp arch/arm/configs/mx51_efikamx_defconfig .config
 
make-kpkg --revision 2011.06 --arch armel --cross-compile arm-linux-gnueabi- --subarch efikamx --us --uc --rootcmd=fakeroot --initrd TARGET

Where TARGET is the output from make-kpkg --targets which is probably just "kernel_image" (just linux-image-*.deb), "binary-arch" (linux-image, linux-headers and linux-image_dbg) or "binary" (full suite of packages).

You can change revision to anything you like.

Johan

Johan Dams, Genesi USA Inc.
Director, Software Engineering

Yep, I have a blog... PurpleAlienPlanet

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DrEagle

Post subject:

Posted: Sat Nov 26, 2011 5:12 pm

Joined:
Fri Oct 28, 2011 6:47 am
Posts:
55
Location:
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PurpleAlien wrote:

How did you generate your kernel and initrd?

I get them from efika.mx (armel) and from debian-ports (armhf).
With using update-initramfs to add mmc to the initrd I get these errors.

I will give another try with a custom build of kernel and ramdisk.

[:-]

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DrEagle

Post subject:

Posted: Sun Nov 27, 2011 4:23 am

Joined:
Fri Oct 28, 2011 6:47 am
Posts:
55
Location:
Terre

Still no success...

PurpleAlien wrote:

How did you generate your kernel and initrd?

For the uImage mkimage, I use the following commad :

Code:

sudo mkimage -A arm -O linux -a 0x90008000 -e 0x90008000 -T kernel -C none -n "EfikaMX kernel" -d distro/p2/boot/vmlinuz-* distro/p2/boot/uImage
Image Name:   EfikaMX kernel
Created:      Sun Nov 27 11:15:17 2011
Image Type:   ARM Linux Kernel Image (uncompressed)
Data Size:    2016820 Bytes = 1969.55 kB = 1.92 MB
Load Address: 0x90008000
Entry Point:  0x90008000

For the initrd mkimage, I use the following command :

Code:

sudo mkimage -A arm -O linux -a 0x0 -e 0x0 -T ramdisk -C none -n "EfikaMX ramdisk" -d distro/p2/boot/initrd.img-* distro/p2/boot/uInitrd
Image Name:   EfikaMX ramdisk
Created:      Sun Nov 27 11:15:17 2011
Image Type:   ARM Linux RAMDisk Image (uncompressed)
Data Size:    2579713 Bytes = 2519.25 kB = 2.46 MB
Load Address: 0x00000000
Entry Point:  0x00000000

For the initrd loading, I use the following boot.script :

Code:

# This boot script loads the kernel and an initial ramdisk 
# into memory, then runs them. The initramfs simply switches 
# to the root file system on the SD card. 
# --------------------------------------------------------
# Setup environment
setenv scriptid ***** Boot using initramfs *****
setenv kernel uImage
setenv ramdisk uInitrd
setenv bootargs initrd=${ramdiskaddr},32M ramdisk_size=32768 console=ttymxc0,115200n8 root=/dev/mmcblkp0p2 rootwait rw video=imx-ipuv3-fb:1024x600M-16@60 lpj=3997696 rootfstype=ext4 earlyprintk=serial; 
# -------------------------------------------------------- 
# Start the boot process 
echo ${scriptid}
${loadcmd} ${ramdiskaddr} ${ramdisk};
if imi ${ramdiskaddr}; then; else
  setenv bootargs ${bootargs} noinitrd;
  setenv ramdiskaddr "";
fi;
${loadcmd} ${kerneladdr} ${kernel}
if imi ${kerneladdr}; then
  bootm ${kerneladdr} ${ramdiskaddr}
fi;

And rootfs incorrectly detected :

Code:

[    2.398936] mmc0: new high speed SD card at address b368                     
[    2.404617] ata1.00: configured for UDMA/44                                  
[    2.409204] scsi 0:0:0:0: Direct-Access     ATA      SanDisk pSSD-P2  SSD  P5
[    2.418963] mmcblk0: mmc0:b368 SD    1.91 GiB                                
[    2.423607]  mmcblk0:                                                        
[    2.425909] sd 0:0:0:0: [sda] 15649200 512-byte logical blocks: (8.01 GB/7.4)
[    2.433828] sd 0:0:0:0: Attached scsi generic sg0 type 0                     
[    2.439538]  p1 p2                                                           
[    2.442229] sd 0:0:0:0: [sda] Write Protect is off                           
[    2.447300] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doeA
[    2.457157]  sda: sda1 sda2                                                  
[    2.464677] sd 0:0:0:0: [sda] Attached SCSI disk                             
[    2.469874] VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2) 
[    2.477014] Please append a correct "root=" boot option; here are the availa:
[    2.485385] b300         2009600 mmcblk0 driver: mmcblk                      
[    2.490654]   b301           72261 mmcblk0p1                                 
[    2.494940]   b302         1935832 mmcblk0p2                                 
[    2.499241] 0800         7824600 sda driver: sd                              
[    2.503789]   0801          121094 sda1                                      
[    2.507650]   0802         7699599 sda2                                      
[    2.511502] Kernel panic - not syncing: VFS: Unable to mount root fs on unkn)

armel build from sdcard give still no success.
uImage load correctly from uboot :

Code:

Starting kernel ...                                                             
                                                                                
Uncompressing Linux.............................................................
[    0.000000] Initializing cgroup subsys cpuset                                
[    0.000000] Linux version 2.6.31.14.27dreagle-efikamx (root@astree) (gcc ver1
[    0.000000] CPU: ARMv7 Processor [412fc085] revision 5 (ARMv7), cr=10c53c7f  
[    0.000000] CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction ce
[    0.000000] Machine: Genesi Efika MX (Smarttop)                              

But I still get initramfs error :

Code:

[    1.204099] Unpacking initramfs...                                           
[    1.207541] Initramfs unpacking failed: junk in compressed archive           
[    1.219166] Freeing initrd memory: 32768K                                    

[:-]

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DrEagle

Post subject:

Posted: Tue Nov 29, 2011 12:32 pm

Joined:
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Posts:
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Location:
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There is a bug in prep-kernel !
mkimage is buggy for ramdisk if -O linux switch is used ...
No more kernel panic.

[:-]

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markos

Post subject:

Posted: Wed Nov 30, 2011 3:57 am

Joined:
Wed Oct 13, 2004 7:26 am
Posts:
342
Location:
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Can you try with the new image?

http://www.powerdeveloper.org/asset/by-id/133

Konstantinos Margaritis
Senior Software Engineer, NEON optimizations
Genesi USA Inc

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DrEagle

Post subject:

Posted: Wed Nov 30, 2011 3:09 pm

Joined:
Fri Oct 28, 2011 6:47 am
Posts:
55
Location:
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markos wrote:

Can you try with the new image?

http://www.powerdeveloper.org/asset/by-id/133

Downloading and give feedback after a try.

My kernel panics and the buggy initrd was fixed with :

Code:

diff --git a/usr/sbin/prep-kernel b/usr/sbin/prep-kernel
index 1348c78..4928445 100755
--- a/usr/sbin/prep-kernel
+++ b/usr/sbin/prep-kernel
@@ -68,7 +68,9 @@ efikamx_prep_kernel() {
        # if there's an initrd.img to generate, do it, if not, ignore..
        if [ -e "${ifile}" ]; then
                printf "Generating initrd u-boot image... " >&2
-               mkimage -A arm -O linux -T ramdisk -C none -a 0x0 \
+               mkimage -A arm -T ramdisk -C none -a 0x0 \
                        -e 0x0 -n "${idesc}" -d "${ifile}" "$tmp.uInitrd" >&2 1>
                echo "done." >&2

[:-]

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DrEagle

Post subject:

Posted: Wed Nov 30, 2011 5:38 pm

Joined:
Fri Oct 28, 2011 6:47 am
Posts:
55
Location:
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markos wrote:

Can you try with the new image?

http://www.powerdeveloper.org/asset/by-id/133

Works great !

Thanks...

[:-]

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