modprobe and exec format error

modprobe and exec format error

[tom_gall]

Hi All,

  Here's a strange one...

  I'm bringing up a 2.4.0-testX kernel (Paul's latest PMac tree) and the kernel
does come up quite a ways (tho how far is a bit hard to tell as things scroll by
and scroll lock doesn't work)

I get the following repeated item on my screen ... so imagine this line times N

/sbin/modprobe -s -k binfmt_4c46 errno=8

Well errno 8 is Exec format error as I recall...    time to upgrade modutils?

Anyone with any suggestions or have seen this one before?

Thanks in advance!

Tom

--
Tom Gall - PowerPC Linux Team    "Where's the ka-boom? There was
Linux Technology Center           supposed to be an earth
(w) tom_gall@vnet.ibm.com         shattering ka-boom!"
(w) 507-253-4558                 -- Marvin Martian
(h) tgall@uswest.net
http://oss.software.ibm.com/developerworks/opensource/linux

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: modprobe and exec format error

[Martin Costabel]

tom_gall@vnet.ibm.com wrote:
>
> Hi All,
>
>   Here's a strange one...
>
>   I'm bringing up a 2.4.0-testX kernel (Paul's latest PMac tree) and the kernel
> does come up quite a ways (tho how far is a bit hard to tell as things scroll by
> and scroll lock doesn't work)

If you compile MagicSysRq support in, you can stop scrolling by
"SysRq-0" (that is F13 + zero).

> I get the following repeated item on my screen ... so imagine this line times N
>
> /sbin/modprobe -s -k binfmt_4c46 errno=8
>
> Well errno 8 is Exec format error as I recall...    time to upgrade modutils?
>
> Anyone with any suggestions or have seen this one before?

Yeah, seen this before:
http://lists.linuxppc.org/listarcs/linuxppc-dev/200007/msg00327.html
and my solution:
http://lists.linuxppc.org/listarcs/linuxppc-dev/200007/msg00345.html

I'm curious what your reason was for getting this.

--
Martin

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: modprobe and exec format error

[tom_gall]

Hi Martin,

Martin Costabel wrote:
>
> tom_gall@vnet.ibm.com wrote:
> >
> > Hi All,
> >
> >   Here's a strange one...
> >
> >   I'm bringing up a 2.4.0-testX kernel (Paul's latest PMac tree) and the kernel
> > does come up quite a ways (tho how far is a bit hard to tell as things scroll by
> > and scroll lock doesn't work)
>
> If you compile MagicSysRq support in, you can stop scrolling by
> "SysRq-0" (that is F13 + zero).
>
> > I get the following repeated item on my screen ... so imagine this line times N
> >
> > /sbin/modprobe -s -k binfmt_4c46 errno=8
> >
> > Well errno 8 is Exec format error as I recall...    time to upgrade modutils?
> >
> > Anyone with any suggestions or have seen this one before?
>
> Yeah, seen this before:
> http://lists.linuxppc.org/listarcs/linuxppc-dev/200007/msg00327.html
> and my solution:
> http://lists.linuxppc.org/listarcs/linuxppc-dev/200007/msg00345.html

Thanks much for the pointers.

I am experiencing this with Cort's current development kernel tree. Based on the
previous posting you had in theory all I needed to do was just grab a fresh
kernel which I did this morning. The same problem surfaced. So something is
definately wrong with the Cort's 2.4.0-test5 tree.

I took a gander at elf.h. The only change I see is



2.3.99-pre9

#define elf_check_arch(x) ((x) == EM_PPC)

2.4.0-test5-Cort

#define elf_check_arch(x) ((x)->e_machine == EM_PPC)

This appearantly is used 3 times fs/binfmt_elf.c

2.3.99-pre9

if (!elf_check_arch(interp_elf_ex->e_machine))

2.4.0-test5-Cort

if (!elf_check_arch(&elf_ex))

So while the code changed it would appear to be consistant at least....

Guess I'll have to keep digging!

> I'm curious what your reason was for getting this.

Me too!

Regards,

Tom

--
Tom Gall - PowerPC Linux Team    "Where's the ka-boom? There was
Linux Technology Center           supposed to be an earth
(w) tom_gall@vnet.ibm.com         shattering ka-boom!"
(w) 507-253-4558                 -- Marvin Martian
(h) tgall@uswest.net
http://oss.software.ibm.com/developerworks/opensource/linux

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/