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Altera_Forum's avatar
Altera_Forum
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20 years ago

/bin/init hangs

hi all,

I am trying to boot uclinux on 2s60 board. where my kernel is hanging

moment it calls /bin/init. I have build uclinux with changed memory layout

where base addresses and irq number differs then default memory layout .sof and .ptf files

given by microtronix. Also I have remover support for compact flash in my case.

I can boot uclinux build from microtronix .sof and .ptf file on the board with similarly

generated file system. I tried "root=/dev/mtdblock0 ro" as well as nfs boot with root=/dev/nfs ro,

and seems fine (nfs boot init gives error with init: execv failed, but get login and prompt ok) .

But when I give my memory layout sof and ptf file the compilation is successful but kernel

get hangs when he calls /bin/init.

Any one has any idea why it is happing so???

Do I need to build new busybox ???

Is it not possible to boot uclinux with custom memory layout on Altera boards ??

Do I need to change my quartus-II 4.2 and nios-II 1.1 versions ???

Any suggestion where I am going wrong ???

If any one need I can post my sof, ptf and nios2_system.h files.

thanks in advance

Ankur

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  • Altera_Forum's avatar
    Altera_Forum
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    20 years ago

    --- Quote Start ---

    originally posted by hippo@May 7 2006, 02:54 AM

    which linux distro do you use?

    check your buildroot/build_nios2/staging_dir/bin,

    are there the cross gcc?

    i would suggest you put the buildroot dir in your home dir as user. ie ~/buildroot .

    please try, rm -rf ~/buildroot/toolchain_build_nios2

    and make again.

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15138)

    --- quote end ---

    --- Quote End ---

    hi hippo and all,

    I am using redhat - 9 on my host system for develop.

    Cross gcc is not there in buildroot/build_nios2/staging_dir/bin....

    Now I have shifted buidroot dir in my home dir but still its failing with same error...

    I read that redhat-9 "make" has some problem ... do I need to update my host system linux-ver to some Fedora version.

    Do I need to build cross-uclibc-gcc by my self or buildroot will do it for me ????

    thanks

    Ankur
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    --- Quote Start ---

    originally posted by ankur+may 8 2006, 04:22 pm--><div class='quotetop'>quote (ankur @ may 8 2006, 04:22 pm)</div>

    --- quote start ---

    <!--quotebegin-hippo@May 7 2006, 02:54 AM

    which linux distro do you use?

    check your buildroot/build_nios2/staging_dir/bin,

    are there the cross gcc?

    i would suggest you put the buildroot dir in your home dir as user. ie ~/buildroot .

    please try, rm -rf ~/buildroot/toolchain_build_nios2

    and make again.

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15138)

    --- quote end ---

    --- Quote End ---

    hi hippo and all,

    I am using redhat - 9 on my host system for develop.

    Cross gcc is not there in buildroot/build_nios2/staging_dir/bin....

    Now I have shifted buidroot dir in my home dir but still its failing with same error...

    I read that redhat-9 "make" has some problem ... do I need to update my host system linux-ver to some Fedora version.

    Do I need to build cross-uclibc-gcc by my self or buildroot will do it for me ????

    thanks

    Ankur

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=15183)</div>

    [/b]

    --- Quote End ---

    The "make" of redhat is too old.

    You should use Fedora Core 5.

    The buildroot will build the cross gcc.

    I have prepared the binary buildroot tools, you can try it without building buildroot.

    http://forum.niosforum.com/forum/index.php?showtopic=3879 (http://forum.niosforum.com/forum/index.php?showtopic=3879)
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    hi hippo and all,

    I tried your binaries and it worked http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

    What I actually did is ... on my redhat-9 system I untared your pre compiled gcc and stuff, then through your already build file system&#39;s help I build my kernel and it worked perfectly fine.

    I can now see file system in ram file system boot. But still facing some issues with nfs root ....

    It doesn&#39;t look like any problem with buildroot or file system ....

    I am getting following error while booting same kernel with nfs boot support enable

    mm/vmscan.c 736 Kernel BUG!

    mm/vmscan.c 738 Kernel BUG!

    .

    .

    .

    .

    .

    .

    What I found is I have enabled bit swaping feature in my nios processor in fpga configuration. Next I will try disabling it and will update result on forum.

    Thanks for all your help

    Ankur