execve system call question

[Sangmoon Kim]

Hi None Atall!

I think the root file system is correct because it's from Hard Hat Linux.
I tried some ramdisk images but the result was the same.
And I don't have JTAG debugger.

Thank you for the replay.

----- Original Message -----
From: "None Atall" <linux_meis at yahoo.com>
To: "Sangmoon Kim" <dogoil at etinsys.com>; "linuxppc-embedded" <linuxppc-embedded at lists.linuxppc.org>
Sent: Tuesday, February 26, 2002 10:11 PM
Subject: Re: execve system call question


> Well, after that command, the filesystem takes
> place. You can't put anything in the kernel. The
> procedure for calling and executing init works fine.
> Is the root filesystem correct? Have you tried to
> upload a ramdisk image in ram? If you are sure that
> all these are correct, then do you have a JTAG
> Debugger? (OCD Commander ...)
>
>                      D. Meidanis
>
> --- Sangmoon Kim <dogoil at etinsys.com> wrote:
> >
> > Hi!
> > I'm debugging a custom MPC755 board
> > with linuxppc_devel from montavista rsync,
> > and /opt/hardhat/devkit/ppc/7xx/target for NFS root.
> > It booted and stoped after the message.
> >
> >
> --------------------------------------------------------
> > NET4: Linux TCP/IP 1.0 for NET4.0
> > IP Protocols: ICMP, UDP, TCP
> > IP: routing cache hash table of 1024 buckets,
> > 8Kbytes
> > TCP: Hash tables configured (established 8192 bind
> > 8192)
> > IP-Config: Complete:
> >       device=eth0, addr=203.239.17.200,
> > mask=255.255.255.0, gw=203.239.17.57,
> >      host=dogoil, domain=, nis-domain=(none),
> >      bootserver=203.239.17.57,
> > rootserver=203.239.17.57, rootpath=
> > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> > Looking up port of RPC 100003/2 on 203.239.17.57
> > Looking up port of RPC 100005/1 on 203.239.17.57
> > VFS: Mounted root (nfs filesystem).
> > Freeing unused kernel memory: 76k init
> >
> --------------------------------------------------------
> >
> > I traced the code and the point of stopping is after
> > calling
> > execve("/sbin/init", argv_init, envp_init)
> > in init/main.c
> >
> > I was trying to trace more, but it was impossible
> > because of the complexity of the code.
> >
> > Is there any method to debug this?
> > I'm debugging it for a month.
> >
> > Please help me.
> >
> > - Sangmoon Kim -
> >
> >
>
>
> =====
> -------------------------------------------------
>   Dhmhtrios Meidanis
> -Degree in Mathematics, University of the Aegean.
> -Master in Computer Architecture and Digital
>  Systems, University of Crete.
>   Greece.
> -------------------------------------------------
>
>

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