Thanks Anthony.
I renamed the image file to contain the "android" word. Now there are no
kernel panic messages.
I have a few additional questions:
1. How long does the Android boot usually take? I have been running the
simulation for about 2.5 hours now but the screen is still stuck on the
Android logo. Is it possible to read kernel log messages to see if anything
has gone wrong?
2. I have modified the init.rc script similar to the ones packaged in the
pre-compiled Android image files. The new line added in init.rc is
service m5readfile /system/bin/sh /sbin/m5_readfile.sh
class main
oneshot
I have placed the m5 binary as well as m5_readfile.sh in /sbin
It may be a noobish error on my part but is m5readfile service present in
the Android build? If not should I create m5readfile native service? What
should the m5readfile service do? How should it interact with the m5
binary? Where should it be placed in the android build?
Regards,
Abhinav
On Mon, Aug 27, 2012 at 7:43 PM, Anthony Gutierrez <atgut...@umich.edu>wrote:
> <0>Kernel panic - not syncing: Attempted to kill init!
> [ 2.268655] Kernel panic - not syncing: Attempted to kill init!
>
> That is you problem. You need to specify init in your boot flags. In
> configs/common/FSConfig.py it checks if the image name contains "android".
> If so it adds init to the boot flags:
>
> boot_flags += " init/init "
>
> Try adding "android" as part of the file name. Or just add " init/init "
> to be part of the boot flags always.
>
> -Tony
>
> On Mon, Aug 27, 2012 at 7:43 PM, Abhinav Kannan <
> abhinavkannan2...@u.northwestern.edu> wrote:
>
>> Hi,
>>
>> I am trying to run Android on Gem5 for my project and I needed help in
>> getting the system to run.
>>
>> I am running the gem5-stable release and am using the ARM architecture.
>> I have set M5_PATH to point to the gem5-stable/system directory
>>
>> Here are the different approaches I tried:
>>
>> 1. I am trying to create a custom Android image file by following the
>> instructions given on the website.
>>
>> I downloaded the Android source code and patched it with Arm specific
>> files as given in
>> http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform
>> for kernel version 2.6.35
>>
>> I successfully compiled the patched Android ICS source code and created
>> an image file using the gem5 image creation utility and transfered the
>> Android file system on it. I am using the pre-built kernel image given on
>> the site.
>>
>> When I try to run the simulation I get kernel panic message and the
>> system does not boot:
>>
>> VFS: Mounted root (ext2 filesystem) on device 8:1.
>> [ 2.254005] VFS: Mounted root (ext2 filesystem) on device 8:1.
>> <6>Freeing init memory: 148K
>> [ 2.254019] Freeing init memory: 148K
>> /bin/sh: earlyprintk: No such file or directory
>> <0>Kernel panic - not syncing: Attempted to kill init!
>> [ 2.268655] Kernel panic - not syncing: Attempted to kill init!
>> [<c003899c>] (unwind_backtrace+0x0/0xe4) from [<c02f2a08>]
>> (panic+0x50/0xd0)
>> [ 2.268666] [<c003899c>] (unwind_backtrace+0x0/0xe4) from [<c02f2a08>]
>> (panic+0x50/0xd0)
>> [<c02f2a08>] (panic+0x50/0xd0) from [<c004efe4>] (do_exit+0x68/0x620)
>> [ 2.268679] [<c02f2a08>] (panic+0x50/0xd0) from [<c004efe4>]
>> (do_exit+0x68/0x620)
>> [<c004efe4>] (do_exit+0x68/0x620) from [<c004f640>]
>> (do_group_exit+0xa4/0xd4)
>> [ 2.268691] [<c004efe4>] (do_exit+0x68/0x620) from [<c004f640>]
>> (do_group_exit+0xa4/0xd4)
>> [<c004f640>] (do_group_exit+0xa4/0xd4) from [<c004f680>]
>> (sys_exit_group+0x10/0x18)
>> [ 2.268704] [<c004f640>] (do_group_exit+0xa4/0xd4) from [<c004f680>]
>> (sys_exit_group+0x10/0x18)
>> [<c004f680>] (sys_exit_group+0x10/0x18) from [<c00326c0>]
>> (ret_fast_syscall+0x0/0x30)
>> [ 2.268718] [<c004f680>] (sys_exit_group+0x10/0x18) from [<c00326c0>]
>> (ret_fast_syscall+0x0/0x30)
>>
>> Am I missing something in the build process? I compared my init.rc file
>> with the one from the clean ICS image file and there were no differences.
>>
>> 2. I tried to run the simulation using the pre-built images and I was
>> able to boot the Gingerbread bbench, gingerbread clean and Ics bbench
>> images using the pre-compiled kernel image.
>>
>> This does not solve the purpose as I want to use my own Android image
>> file.
>>
>> 3. I downloaded and compiled the armdroid kernel source code and tried to
>> run the simulation. After compilation, I get the file "uImage" in
>> arch/arm/boot folder. I renamed uImage to vmlinux.arm.custom and used it in
>> the simulation. The simulation exits immediately with the message "Could
>> not load kernel file". I have placed the kernel image in
>> gem5-stable/system/binaries. Am I using the correct kernel image file?
>>
>> It would be really helpful if someone could point me in the correct
>> direction so that I can get the system to run.
>> Kindly let me know in case any additional information is required.
>>
>> Thanks and Regards,
>> Abhinav Kannan
>>
>> _______________________________________________
>> gem5-users mailing list
>> gem5-users@gem5.org
>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>>
>
>
> _______________________________________________
> gem5-users mailing list
> gem5-users@gem5.org
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
