Re: Kerenel crashes every other Boot..

Re: Kerenel crashes every other Boot..

[Wolfgang Reissnegger]

Hi Ravi,

I think dumping only the first couple kilbytes is not enough to be sure.
Even a single byte later on can corrupt the image. You need to make sure
that the complete image is correct.

I don't know about the TLB setup changes.

Wolfgang

ravi.rao@rflelect.com wrote:
> 
> Hi Wolfgang, The image is getting loaded from the flash. I am able to
> hook up BDI2000 and dump various locations. I dumped first few kilo
> byte locations of the image and looks no corruption. I also tried
> this on another board and l see the same behaviour.
> 
> Also the board I am using is an existing product but it is running 
> 2.4.18 kernel. Hardware of our next gen product will be based on the
> existing board but it will run 2.6.21 kernel. So to speed software
> development I am using the existing product as the refernce and
> trying to put 2.6.21.
> 
> Other paculiar thing that I have seen is Once I reset the power to 
> chasis or pull the card out and put it back in  it gets stuck at "Now
>  booting the kernel" stage and upon hooking BDI2000 it looks like it 
> hangs in early_init function at the call *to 
> memset_io(PTRRELOC(&__bss_start), 0, _end - __bss_start). Only way to
>  get it back working is by burning a 2.4 kernel rebooting the card
> and again burning the 2.6 one..*Any idea what may be happening.....
> 
> The only difference i see in 2.4.x initial code and 2.6.x init code
> is the wired tlb setup in head_4xx.S. Do you know why the wired tlb
> setup code got removed from 2.6 ??
> 
> Thanks, Ravishankar Govindarao RFL Electronics Inc. E-mail :
> _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com> Voice:
> 973.334.3100 Ext. 233 Fax: 973.334.3863
> 
> 
> 
> 
> _CONFIDENTIALITY NOTE_
> 
> This e-mail, including any attachments, may contain confidential
> and/or legally privileged information.  The Information is intended
> only for the use of the individual or entity named on this e-mail .
> If you are not the intended recipient, you are hereby notified that
> any disclosure, copying, distribution, or the taking of any action in
> reliance on the contents of this transmitted Information is strictly
> prohibited. Further, if you are not the intended recipient, please
> notify us by return e-mail and delete the Information promptly.
> 
> 
> 
> 
> 
> 
> 
> 
> *Wolfgang Reissnegger <wolfgang.reissnegger@xilinx.com>*
> 
> 08/22/2007 11:36 AM
> 
>  To ravi.rao@rflelect.com cc linuxppc-embedded@ozlabs.org Subject Re:
> Kerenel crashes every other Boot..
> 
> 
> 
> 
> 
> 
> 
> 
> Hi Ravi,
> 
> my first guess would be that there is a problem with your RAM. Could
> be the RAM timing or just a bad RAM chip.
> 
> Try to run the image on another board, see if it works there. If not
> you can check the RAM timing. Given that you have a custom board
> there could be some design issues.
> 
> Where are you loading the image from? Maybe there is a problem in 
> transferring the image into RAM so the image download corrupts the
> data?
> 
> Cheers, Wolfgang
> 
> ravi.rao@rflelect.com wrote:
>> 
>> Hi, Some times it crashes and many times it comes back with an
>> error as Junk in compressed Image.. Below is the screen dump.. 
>> **************** When it does not work ************************** 
>> BOOT MONITOR: .. eth driver not initialized. command aborted ..
>> Invoking Linux PPC Kernel Loader at 0xfe800000 .. Boot Parms:
>> 0x3f72314, Flags: 0x1014, Verbose: 0x3
>> 
>> loaded at:     FE800000 FEA16124 relocated to:  00400000 00616124 
>> board data at: 03F72314 03F72510 relocated to:  00613000 006131FC 
>> zimage at:     00404EDC 0061289C avail ram:     00617000 04000000
>> 
>> Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs Uncompressing
>> Linux...done. Now booting the kernel Linux version 2.6.21
>> (root@localhost.localdomain) (gcc version 4.1.0 20060304 (TimeSys
>> 4.1.0-3)) #27 Wed Aug 22 10:10:4 2 EDT 2007 MAC 0:
>> 00:50:cc:0c:e2:30 MAC 1: 00:50:c2:0c:e2:31 Zone PFN ranges: DMA
>> 0 ->    16384 Normal      16384 ->    16384 early_node_map[1]
>> active PFN ranges 0:        0 ->    16384 Built 1 zonelists.  Total
>> pages: 16256 Kernel command line: console=ttyS0,9600 root=/dev/rd/0
>>  ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0 PID hash
>> table entries: 256 (order: 8, 1024 bytes) Dentry cache hash table
>> entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table
>> entries: 4096 (order: 2, 16384 bytes) Memory: 61952k available
>> (1188k kernel code, 280k data, 1504k init, 0k highmem) Mount-cache
>> hash table entries: 512 Kernel panic - not syncing: junk in
>> compressed archive Rebooting in 180 seconds..
>> 
>> ******************** When it works ************************** BOOT
>> MONITOR: .. eth driver not initialized. command aborted .. Invoking
>> Linux PPC Kernel Loader at 0xfe800000 .. Boot Parms: 0x3f72314,
>> Flags: 0x1014, Verbose: 0x3
>> 
>> loaded at:     FE800000 FEA16124 relocated to:  00400000 00616124 
>> board data at: 03F72314 03F72510 relocated to:  00613000 006131FC 
>> zimage at:     00404EDC 0061289C avail ram:     00617000 04000000
>> 
>> Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs Uncompressing
>> Linux...done. Now booting the kernel Linux version 2.6.21
>> (root@localhost.localdomain) (gcc version 4.1.0 20060304 (TimeSys
>> 4.1.0-3)) #27 Wed Aug 22 10:10:4 2 EDT 2007 MAC 0:
>> 00:50:cc:0c:e2:30 MAC 1: 00:50:c2:0c:e2:31 Zone PFN ranges: DMA
>> 0 ->    16384 Normal      16384 ->    16384 early_node_map[1]
>> active PFN ranges 0:        0 ->    16384 Built 1 zonelists.  Total
>> pages: 16256 Kernel command line: console=ttyS0,9600 root=/dev/rd/0
>>  ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0 PID hash
>> table entries: 256 (order: 8, 1024 bytes) Dentry cache hash table
>> entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table
>> entries: 4096 (order: 2, 16384 bytes) Memory: 61952k available
>> (1188k kernel code, 280k data, 1504k init, 0k highmem) Mount-cache
>> hash table entries: 512 JFFS2 version 2.2. (NAND) (C) 2001-2006 Red
>> Hat, Inc. io scheduler noop registered io scheduler anticipatory
>> registered io scheduler deadline registered io scheduler cfq
>> registered (default) Serial: 8250/16550 driver $Revision: 1.90 $ 4
>> ports, IRQ sharing enabled serial8250: ttyS0 at MMIO 0x0 (irq = 0)
>> is a 16550A serial8250: ttyS1 at MMIO 0x0 (irq = 1) is a 16550A 
>> RAMDISK driver initialized: 1 RAM disks of 16384K size 1024
>> blocksize loop: loaded (max 8 devices) i2c /dev entries driver IBM
>> IIC driver v2.1 ibm-iic0: using standard (100 kHz) mode Freeing
>> unused kernel memory: 1504k init serial console detected.
>> Disabling virtual terminals. init started:  BusyBox v0.60.2
>> (2003.04.29-11:32+0000) multi-call binary Bummer, could not run
>> '/etc/init.d/rcS': No such file or directory
>> 
>> Please press Enter to activate this console. sh-2.05#
>> 
>> Ravishankar Govindarao RFL Electronics Inc. E-mail :
>> _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com> Voice:
>> 973.334.3100 Ext. 233 Fax: 973.334.3863
>> 
>> 
>> 
>> 
>> _CONFIDENTIALITY NOTE_
>> 
>> This e-mail, including any attachments, may contain confidential
>> and/or legally privileged information.  The Information is intended
>> only for the use of the individual or entity named on this e-mail .
>> If you are not the intended recipient, you are hereby notified that
>> any disclosure, copying, distribution, or the taking of any action
>> in reliance on the contents of this transmitted Information is
>> strictly prohibited. Further, if you are not the intended
>> recipient, please notify us by return e-mail and delete the
>> Information promptly.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> *Wolfgang Reissnegger <wolfgang.reissnegger@xilinx.com>*
>> 
>> 08/22/2007 11:15 AM
>> 
>> 
>> To ravi.rao@rflelect.com cc linuxppc-embedded@ozlabs.org Subject 
>> Re: Kerenel crashes every other Boot..
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> Hi Ravi,
>> 
>> you need to provide more information, for example, where does the
>> kernel crash, any serial console output that you see when it
>> crashes, etc.
>> 
>> Cheers, Wolfgang
>> 
>> 
>> ravi.rao@rflelect.com wrote:
>>> 
>>> Hi All, I have a PPC 405EP custom target. I based most of my
>>> software on the EP405 Taihu reference and now I am able to load
>>> the 2.6.21 kernel and with a minimum initramfs I also get the
>>> busy box prompt. I see a strange poblem it fails(linux crashes)
>>> every other boot. Can any one please tell me what may be
>>> happening ??? Thanks, Ravishankar Govindarao RFL Electronics Inc.
>>>  E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com> 
>>> Voice: 973.334.3100 Ext. 233 Fax: 973.334.3863
>>> 
>>> 
>>> 
>>> 
>>> _CONFIDENTIALITY NOTE_
>>> 
>>> This e-mail, including any attachments, may contain confidential
>>> and/or legally privileged information.  The Information is
>>> intended only for the use of the individual or entity named on
>>> this e-mail .  If you are not the intended recipient, you are
>>> hereby notified that any disclosure, copying, distribution, or
>>> the taking of any action in reliance on the contents of this
>>> transmitted Information is strictly prohibited. Further, if you
>>> are not the intended recipient, please notify us by return e-mail
>>> and delete the Information promptly.
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> ------------------------------------------------------------------------
>>> 
>>> 
>>> _______________________________________________ Linuxppc-embedded
>>> mailing list Linuxppc-embedded@ozlabs.org 
>>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>> 
>> 
> 
> 

Re: Kerenel crashes every other Boot..

[Wolfgang Reissnegger]

Hi Ravi,

my first guess would be that there is a problem with your RAM. Could be
the RAM timing or just a bad RAM chip.

Try to run the image on another board, see if it works there. If not you
can check the RAM timing. Given that you have a custom board there could
be some design issues.

Where are you loading the image from? Maybe there is a problem in
transferring the image into RAM so the image download corrupts the data?

Cheers,
   Wolfgang

ravi.rao@rflelect.com wrote:
> 
> Hi,
>   Some times it crashes and many times it comes back with an error as
> Junk in compressed Image..
> Below is the screen dump..
> **************** When it does not work **************************
> BOOT MONITOR:
> .. eth driver not initialized. command aborted
> .. Invoking Linux PPC Kernel Loader at 0xfe800000
> .. Boot Parms: 0x3f72314, Flags: 0x1014, Verbose: 0x3
> 
> loaded at:     FE800000 FEA16124
> relocated to:  00400000 00616124
> board data at: 03F72314 03F72510
> relocated to:  00613000 006131FC
> zimage at:     00404EDC 0061289C
> avail ram:     00617000 04000000
> 
> Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs
> Uncompressing Linux...done.
> Now booting the kernel
> Linux version 2.6.21 (root@localhost.localdomain) (gcc version 4.1.0
> 20060304 (TimeSys 4.1.0-3)) #27 Wed Aug 22 10:10:4
> 2 EDT 2007
> MAC 0: 00:50:cc:0c:e2:30
> MAC 1: 00:50:c2:0c:e2:31
> Zone PFN ranges:
>   DMA             0 ->    16384
>   Normal      16384 ->    16384
> early_node_map[1] active PFN ranges
>     0:        0 ->    16384
> Built 1 zonelists.  Total pages: 16256
> Kernel command line: console=ttyS0,9600 root=/dev/rd/0
> ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0
> PID hash table entries: 256 (order: 8, 1024 bytes)
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 61952k available (1188k kernel code, 280k data, 1504k init, 0k
> highmem)
> Mount-cache hash table entries: 512
> Kernel panic - not syncing: junk in compressed archive
> Rebooting in 180 seconds..
> 
> ******************** When it works **************************
> BOOT MONITOR:
> .. eth driver not initialized. command aborted
> .. Invoking Linux PPC Kernel Loader at 0xfe800000
> .. Boot Parms: 0x3f72314, Flags: 0x1014, Verbose: 0x3
> 
> loaded at:     FE800000 FEA16124
> relocated to:  00400000 00616124
> board data at: 03F72314 03F72510
> relocated to:  00613000 006131FC
> zimage at:     00404EDC 0061289C
> avail ram:     00617000 04000000
> 
> Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs
> Uncompressing Linux...done.
> Now booting the kernel
> Linux version 2.6.21 (root@localhost.localdomain) (gcc version 4.1.0
> 20060304 (TimeSys 4.1.0-3)) #27 Wed Aug 22 10:10:4
> 2 EDT 2007
> MAC 0: 00:50:cc:0c:e2:30
> MAC 1: 00:50:c2:0c:e2:31
> Zone PFN ranges:
>   DMA             0 ->    16384
>   Normal      16384 ->    16384
> early_node_map[1] active PFN ranges
>     0:        0 ->    16384
> Built 1 zonelists.  Total pages: 16256
> Kernel command line: console=ttyS0,9600 root=/dev/rd/0
> ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0
> PID hash table entries: 256 (order: 8, 1024 bytes)
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 61952k available (1188k kernel code, 280k data, 1504k init, 0k
> highmem)
> Mount-cache hash table entries: 512
> JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> serial8250: ttyS0 at MMIO 0x0 (irq = 0) is a 16550A
> serial8250: ttyS1 at MMIO 0x0 (irq = 1) is a 16550A
> RAMDISK driver initialized: 1 RAM disks of 16384K size 1024 blocksize
> loop: loaded (max 8 devices)
> i2c /dev entries driver
> IBM IIC driver v2.1
> ibm-iic0: using standard (100 kHz) mode
> Freeing unused kernel memory: 1504k init
> serial console detected.  Disabling virtual terminals.
> init started:  BusyBox v0.60.2 (2003.04.29-11:32+0000) multi-call binary
> Bummer, could not run '/etc/init.d/rcS': No such file or directory
> 
> Please press Enter to activate this console.
> sh-2.05#
> 
> Ravishankar Govindarao
> RFL Electronics Inc.
> E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com>
> Voice: 973.334.3100 Ext. 233
> Fax: 973.334.3863
> 
>  
> 
> 
> _CONFIDENTIALITY NOTE_
> 
> This e-mail, including any attachments, may contain confidential and/or
> legally privileged information.  The Information is intended only for
> the use of the individual or entity named on this e-mail .  If you are
> not the intended recipient, you are hereby notified that any disclosure,
> copying, distribution, or the taking of any action in reliance on the
> contents of this transmitted Information is strictly prohibited. 
> Further, if you are not the intended recipient, please notify us by
> return e-mail and delete the Information promptly.
> 
>  
> 
>  
> 
>  
> 
> 
> *Wolfgang Reissnegger <wolfgang.reissnegger@xilinx.com>*
> 
> 08/22/2007 11:15 AM
> 
> 	
> To
> 	ravi.rao@rflelect.com
> cc
> 	linuxppc-embedded@ozlabs.org
> Subject
> 	Re: Kerenel crashes every other Boot..
> 
> 
> 	
> 
> 
> 
> 
> 
> Hi Ravi,
> 
> you need to provide more information, for example, where does the kernel
> crash, any serial console output that you see when it crashes, etc.
> 
> Cheers,
>   Wolfgang
> 
> 
> ravi.rao@rflelect.com wrote:
>>
>> Hi All,
>>     I have a PPC 405EP custom target. I based most of my software on the
>> EP405 Taihu reference and now I am able to load the 2.6.21 kernel and
>> with a minimum initramfs I also get the busy box prompt. I see a strange
>> poblem it fails(linux crashes) every other boot. Can any one please tell
>> me what may be happening ???
>> Thanks,
>> Ravishankar Govindarao
>> RFL Electronics Inc.
>> E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com>
>> Voice: 973.334.3100 Ext. 233
>> Fax: 973.334.3863
>>
>>  
>>
>>
>> _CONFIDENTIALITY NOTE_
>>
>> This e-mail, including any attachments, may contain confidential and/or
>> legally privileged information.  The Information is intended only for
>> the use of the individual or entity named on this e-mail .  If you are
>> not the intended recipient, you are hereby notified that any disclosure,
>> copying, distribution, or the taking of any action in reliance on the
>> contents of this transmitted Information is strictly prohibited.
>> Further, if you are not the intended recipient, please notify us by
>> return e-mail and delete the Information promptly.
>>
>>  
>>
>>  
>>
>>  
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Linuxppc-embedded mailing list
>> Linuxppc-embedded@ozlabs.org
>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> 
> 

Re: Kerenel crashes every other Boot..

[ravi.rao]

[-- Attachment #1: Type: text/plain, Size: 9132 bytes --]

Hi Wolfgang,
     The image is getting loaded from the flash. I am able to hook up 
BDI2000 and dump various locations.
I dumped first few kilo byte locations of the image and looks no 
corruption.
I also tried this on another board and l see the same behaviour.

Also the board I am using is an existing product but it is running 2.4.18 
kernel.
Hardware of our next gen product will be based on the existing board but 
it will run 2.6.21 kernel.
So to speed software development I am using the existing product as the 
refernce and trying to put 2.6.21.

Other paculiar thing that I have seen is Once I reset the power to chasis 
or pull the card out and put it back in  it gets stuck at "Now booting the 
kernel" stage and upon hooking BDI2000 it looks like it hangs in 
early_init function at the call to memset_io(PTRRELOC(&__bss_start), 0, 
_end - __bss_start). Only way to get it back working is by burning a 2.4 
kernel rebooting the card and again burning the 2.6 one..Any idea what may 
be happening.....

The only difference i see in 2.4.x initial code and 2.6.x init code is the 
wired tlb setup in head_4xx.S. Do you know why the wired tlb setup code 
got removed from 2.6 ??

Thanks,
Ravishankar Govindarao
RFL Electronics Inc.
E-mail : Ravi.Rao@rflelect.com
Voice: 973.334.3100 Ext. 233
Fax: 973.334.3863
 
CONFIDENTIALITY NOTE
This e-mail, including any attachments, may contain confidential and/or 
legally privileged information.  The Information is intended only for the 
use of the individual or entity named on this e-mail .  If you are not the 
intended recipient, you are hereby notified that any disclosure, copying, 
distribution, or the taking of any action in reliance on the contents of 
this transmitted Information is strictly prohibited.  Further, if you are 
not the intended recipient, please notify us by return e-mail and delete 
the Information promptly.
 
 
 



Wolfgang Reissnegger <wolfgang.reissnegger@xilinx.com> 
08/22/2007 11:36 AM

To
ravi.rao@rflelect.com
cc
linuxppc-embedded@ozlabs.org
Subject
Re: Kerenel crashes every other Boot..






Hi Ravi,

my first guess would be that there is a problem with your RAM. Could be
the RAM timing or just a bad RAM chip.

Try to run the image on another board, see if it works there. If not you
can check the RAM timing. Given that you have a custom board there could
be some design issues.

Where are you loading the image from? Maybe there is a problem in
transferring the image into RAM so the image download corrupts the data?

Cheers,
   Wolfgang

ravi.rao@rflelect.com wrote:
> 
> Hi,
>   Some times it crashes and many times it comes back with an error as
> Junk in compressed Image..
> Below is the screen dump..
> **************** When it does not work **************************
> BOOT MONITOR:
> .. eth driver not initialized. command aborted
> .. Invoking Linux PPC Kernel Loader at 0xfe800000
> .. Boot Parms: 0x3f72314, Flags: 0x1014, Verbose: 0x3
> 
> loaded at:     FE800000 FEA16124
> relocated to:  00400000 00616124
> board data at: 03F72314 03F72510
> relocated to:  00613000 006131FC
> zimage at:     00404EDC 0061289C
> avail ram:     00617000 04000000
> 
> Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs
> Uncompressing Linux...done.
> Now booting the kernel
> Linux version 2.6.21 (root@localhost.localdomain) (gcc version 4.1.0
> 20060304 (TimeSys 4.1.0-3)) #27 Wed Aug 22 10:10:4
> 2 EDT 2007
> MAC 0: 00:50:cc:0c:e2:30
> MAC 1: 00:50:c2:0c:e2:31
> Zone PFN ranges:
>   DMA             0 ->    16384
>   Normal      16384 ->    16384
> early_node_map[1] active PFN ranges
>     0:        0 ->    16384
> Built 1 zonelists.  Total pages: 16256
> Kernel command line: console=ttyS0,9600 root=/dev/rd/0
> ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0
> PID hash table entries: 256 (order: 8, 1024 bytes)
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 61952k available (1188k kernel code, 280k data, 1504k init, 0k
> highmem)
> Mount-cache hash table entries: 512
> Kernel panic - not syncing: junk in compressed archive
> Rebooting in 180 seconds..
> 
> ******************** When it works **************************
> BOOT MONITOR:
> .. eth driver not initialized. command aborted
> .. Invoking Linux PPC Kernel Loader at 0xfe800000
> .. Boot Parms: 0x3f72314, Flags: 0x1014, Verbose: 0x3
> 
> loaded at:     FE800000 FEA16124
> relocated to:  00400000 00616124
> board data at: 03F72314 03F72510
> relocated to:  00613000 006131FC
> zimage at:     00404EDC 0061289C
> avail ram:     00617000 04000000
> 
> Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs
> Uncompressing Linux...done.
> Now booting the kernel
> Linux version 2.6.21 (root@localhost.localdomain) (gcc version 4.1.0
> 20060304 (TimeSys 4.1.0-3)) #27 Wed Aug 22 10:10:4
> 2 EDT 2007
> MAC 0: 00:50:cc:0c:e2:30
> MAC 1: 00:50:c2:0c:e2:31
> Zone PFN ranges:
>   DMA             0 ->    16384
>   Normal      16384 ->    16384
> early_node_map[1] active PFN ranges
>     0:        0 ->    16384
> Built 1 zonelists.  Total pages: 16256
> Kernel command line: console=ttyS0,9600 root=/dev/rd/0
> ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0
> PID hash table entries: 256 (order: 8, 1024 bytes)
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 61952k available (1188k kernel code, 280k data, 1504k init, 0k
> highmem)
> Mount-cache hash table entries: 512
> JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> serial8250: ttyS0 at MMIO 0x0 (irq = 0) is a 16550A
> serial8250: ttyS1 at MMIO 0x0 (irq = 1) is a 16550A
> RAMDISK driver initialized: 1 RAM disks of 16384K size 1024 blocksize
> loop: loaded (max 8 devices)
> i2c /dev entries driver
> IBM IIC driver v2.1
> ibm-iic0: using standard (100 kHz) mode
> Freeing unused kernel memory: 1504k init
> serial console detected.  Disabling virtual terminals.
> init started:  BusyBox v0.60.2 (2003.04.29-11:32+0000) multi-call binary
> Bummer, could not run '/etc/init.d/rcS': No such file or directory
> 
> Please press Enter to activate this console.
> sh-2.05#
> 
> Ravishankar Govindarao
> RFL Electronics Inc.
> E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com>
> Voice: 973.334.3100 Ext. 233
> Fax: 973.334.3863
> 
> 
> 
> 
> _CONFIDENTIALITY NOTE_
> 
> This e-mail, including any attachments, may contain confidential and/or
> legally privileged information.  The Information is intended only for
> the use of the individual or entity named on this e-mail .  If you are
> not the intended recipient, you are hereby notified that any disclosure,
> copying, distribution, or the taking of any action in reliance on the
> contents of this transmitted Information is strictly prohibited. 
> Further, if you are not the intended recipient, please notify us by
> return e-mail and delete the Information promptly.
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> 
> 
> 
> 
> 
> 
> 
> *Wolfgang Reissnegger <wolfgang.reissnegger@xilinx.com>*
> 
> 08/22/2007 11:15 AM
> 
> 
> To
>                ravi.rao@rflelect.com
> cc
>                linuxppc-embedded@ozlabs.org
> Subject
>                Re: Kerenel crashes every other Boot..
> 
> 
> 
> 
> 
> 
> 
> 
> Hi Ravi,
> 
> you need to provide more information, for example, where does the kernel
> crash, any serial console output that you see when it crashes, etc.
> 
> Cheers,
>   Wolfgang
> 
> 
> ravi.rao@rflelect.com wrote:
>>
>> Hi All,
>>     I have a PPC 405EP custom target. I based most of my software on 
the
>> EP405 Taihu reference and now I am able to load the 2.6.21 kernel and
>> with a minimum initramfs I also get the busy box prompt. I see a 
strange
>> poblem it fails(linux crashes) every other boot. Can any one please 
tell
>> me what may be happening ???
>> Thanks,
>> Ravishankar Govindarao
>> RFL Electronics Inc.
>> E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com>
>> Voice: 973.334.3100 Ext. 233
>> Fax: 973.334.3863
>>
>> 
>>
>>
>> _CONFIDENTIALITY NOTE_
>>
>> This e-mail, including any attachments, may contain confidential and/or
>> legally privileged information.  The Information is intended only for
>> the use of the individual or entity named on this e-mail .  If you are
>> not the intended recipient, you are hereby notified that any 
disclosure,
>> copying, distribution, or the taking of any action in reliance on the
>> contents of this transmitted Information is strictly prohibited.
>> Further, if you are not the intended recipient, please notify us by
>> return e-mail and delete the Information promptly.
>>
>> 
>>
>> 
>>
>> 
>>
>>
>> 
------------------------------------------------------------------------
>>
>> _______________________________________________
>> Linuxppc-embedded mailing list
>> Linuxppc-embedded@ozlabs.org
>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> 
> 



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Kerenel crashes every other Boot..

[ravi.rao]

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Hi All,
    I have a PPC 405EP custom target. I based most of my software on the 
EP405 Taihu reference and now I am able to load the 2.6.21 kernel and with 
a minimum initramfs I also get the busy box prompt. I see a strange poblem 
it fails(linux crashes) every other boot. Can any one please tell me what 
may be happening ???
Thanks,
Ravishankar Govindarao
RFL Electronics Inc.
E-mail : Ravi.Rao@rflelect.com
Voice: 973.334.3100 Ext. 233
Fax: 973.334.3863
 
CONFIDENTIALITY NOTE
This e-mail, including any attachments, may contain confidential and/or 
legally privileged information.  The Information is intended only for the 
use of the individual or entity named on this e-mail .  If you are not the 
intended recipient, you are hereby notified that any disclosure, copying, 
distribution, or the taking of any action in reliance on the contents of 
this transmitted Information is strictly prohibited.  Further, if you are 
not the intended recipient, please notify us by return e-mail and delete 
the Information promptly.
 
 
 

[-- Attachment #2: Type: text/html, Size: 1779 bytes --]

Re: Kerenel crashes every other Boot..

[Wolfgang Reissnegger]

Hi Ravi,

you need to provide more information, for example, where does the kernel
crash, any serial console output that you see when it crashes, etc.

Cheers,
   Wolfgang


ravi.rao@rflelect.com wrote:
> 
> Hi All,
>     I have a PPC 405EP custom target. I based most of my software on the
> EP405 Taihu reference and now I am able to load the 2.6.21 kernel and
> with a minimum initramfs I also get the busy box prompt. I see a strange
> poblem it fails(linux crashes) every other boot. Can any one please tell
> me what may be happening ???
> Thanks,
> Ravishankar Govindarao
> RFL Electronics Inc.
> E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com>
> Voice: 973.334.3100 Ext. 233
> Fax: 973.334.3863
> 
>  
> 
> 
> _CONFIDENTIALITY NOTE_
> 
> This e-mail, including any attachments, may contain confidential and/or
> legally privileged information.  The Information is intended only for
> the use of the individual or entity named on this e-mail .  If you are
> not the intended recipient, you are hereby notified that any disclosure,
> copying, distribution, or the taking of any action in reliance on the
> contents of this transmitted Information is strictly prohibited. 
> Further, if you are not the intended recipient, please notify us by
> return e-mail and delete the Information promptly.
> 
>  
> 
>  
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded

Re: Kerenel crashes every other Boot..

[ravi.rao]

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Hi,
  Some times it crashes and many times it comes back with an error as Junk 
in compressed Image..
Below is the screen dump..
**************** When it does not work **************************
BOOT MONITOR:
.. eth driver not initialized. command aborted
.. Invoking Linux PPC Kernel Loader at 0xfe800000
.. Boot Parms: 0x3f72314, Flags: 0x1014, Verbose: 0x3

loaded at:     FE800000 FEA16124
relocated to:  00400000 00616124
board data at: 03F72314 03F72510
relocated to:  00613000 006131FC
zimage at:     00404EDC 0061289C
avail ram:     00617000 04000000

Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs
Uncompressing Linux...done.
Now booting the kernel
Linux version 2.6.21 (root@localhost.localdomain) (gcc version 4.1.0 
20060304 (TimeSys 4.1.0-3)) #27 Wed Aug 22 10:10:4
2 EDT 2007
MAC 0: 00:50:cc:0c:e2:30
MAC 1: 00:50:c2:0c:e2:31
Zone PFN ranges:
  DMA             0 ->    16384
  Normal      16384 ->    16384
early_node_map[1] active PFN ranges
    0:        0 ->    16384
Built 1 zonelists.  Total pages: 16256
Kernel command line: console=ttyS0,9600 root=/dev/rd/0 
ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0
PID hash table entries: 256 (order: 8, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 61952k available (1188k kernel code, 280k data, 1504k init, 0k 
highmem)
Mount-cache hash table entries: 512
Kernel panic - not syncing: junk in compressed archive
Rebooting in 180 seconds..

******************** When it works **************************
BOOT MONITOR:
.. eth driver not initialized. command aborted
.. Invoking Linux PPC Kernel Loader at 0xfe800000
.. Boot Parms: 0x3f72314, Flags: 0x1014, Verbose: 0x3

loaded at:     FE800000 FEA16124
relocated to:  00400000 00616124
board data at: 03F72314 03F72510
relocated to:  00613000 006131FC
zimage at:     00404EDC 0061289C
avail ram:     00617000 04000000

Linux/PPC load: console=ttyS0,9600 ip=dhcp root=nfs
Uncompressing Linux...done.
Now booting the kernel
Linux version 2.6.21 (root@localhost.localdomain) (gcc version 4.1.0 
20060304 (TimeSys 4.1.0-3)) #27 Wed Aug 22 10:10:4
2 EDT 2007
MAC 0: 00:50:cc:0c:e2:30
MAC 1: 00:50:c2:0c:e2:31
Zone PFN ranges:
  DMA             0 ->    16384
  Normal      16384 ->    16384
early_node_map[1] active PFN ranges
    0:        0 ->    16384
Built 1 zonelists.  Total pages: 16256
Kernel command line: console=ttyS0,9600 root=/dev/rd/0 
ip=10.2.254.33:10.2.1.1:10.2.0.1:255.255.0.0:unknown:eth0
PID hash table entries: 256 (order: 8, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 61952k available (1188k kernel code, 280k data, 1504k init, 0k 
highmem)
Mount-cache hash table entries: 512
JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250: ttyS0 at MMIO 0x0 (irq = 0) is a 16550A
serial8250: ttyS1 at MMIO 0x0 (irq = 1) is a 16550A
RAMDISK driver initialized: 1 RAM disks of 16384K size 1024 blocksize
loop: loaded (max 8 devices)
i2c /dev entries driver
IBM IIC driver v2.1
ibm-iic0: using standard (100 kHz) mode
Freeing unused kernel memory: 1504k init
serial console detected.  Disabling virtual terminals.
init started:  BusyBox v0.60.2 (2003.04.29-11:32+0000) multi-call binary
Bummer, could not run '/etc/init.d/rcS': No such file or directory

Please press Enter to activate this console.
sh-2.05#

Ravishankar Govindarao
RFL Electronics Inc.
E-mail : Ravi.Rao@rflelect.com
Voice: 973.334.3100 Ext. 233
Fax: 973.334.3863
 
CONFIDENTIALITY NOTE
This e-mail, including any attachments, may contain confidential and/or 
legally privileged information.  The Information is intended only for the 
use of the individual or entity named on this e-mail .  If you are not the 
intended recipient, you are hereby notified that any disclosure, copying, 
distribution, or the taking of any action in reliance on the contents of 
this transmitted Information is strictly prohibited.  Further, if you are 
not the intended recipient, please notify us by return e-mail and delete 
the Information promptly.
 
 
 



Wolfgang Reissnegger <wolfgang.reissnegger@xilinx.com> 
08/22/2007 11:15 AM

To
ravi.rao@rflelect.com
cc
linuxppc-embedded@ozlabs.org
Subject
Re: Kerenel crashes every other Boot..






Hi Ravi,

you need to provide more information, for example, where does the kernel
crash, any serial console output that you see when it crashes, etc.

Cheers,
   Wolfgang


ravi.rao@rflelect.com wrote:
> 
> Hi All,
>     I have a PPC 405EP custom target. I based most of my software on the
> EP405 Taihu reference and now I am able to load the 2.6.21 kernel and
> with a minimum initramfs I also get the busy box prompt. I see a strange
> poblem it fails(linux crashes) every other boot. Can any one please tell
> me what may be happening ???
> Thanks,
> Ravishankar Govindarao
> RFL Electronics Inc.
> E-mail : _Ravi.Rao@rflelect.com_ <mailto:Ravi.Rao@rflelect.com>
> Voice: 973.334.3100 Ext. 233
> Fax: 973.334.3863
> 
> 
> 
> 
> _CONFIDENTIALITY NOTE_
> 
> This e-mail, including any attachments, may contain confidential and/or
> legally privileged information.  The Information is intended only for
> the use of the individual or entity named on this e-mail .  If you are
> not the intended recipient, you are hereby notified that any disclosure,
> copying, distribution, or the taking of any action in reliance on the
> contents of this transmitted Information is strictly prohibited. 
> Further, if you are not the intended recipient, please notify us by
> return e-mail and delete the Information promptly.
> 
> 
> 
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded



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