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Old 08-02-2009, 01:51 PM   #1
zvivered
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Registered: Sep 2007
Posts: 300

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request_module: runaway loop modprobe binfmt-464c


Hello,

I built bzImage from 2.6.30.1, and ran it on a Pentium-M CPU. The file system is NFS. After few seconds I saw the following messages:

VFS: Mounted root (nfs filesystem) readonly on device 0:16
async_waiting @ 1
async_continuing @ 1 after 0 usec
Freeing unused kernel memory: 348k freed
Write protecting the kernel text: 4204k
Write protecting the kernel read-only data: 2084k
request_module: runaway loop modprobe binfmt-464c
request_module: runaway loop modprobe binfmt-464c
khelper used greatest stack depth: 5672 bytes left
request_module: runaway loop modprobe binfmt-464c
request_module: runaway loop modprobe binfmt-464c
request_module: runaway loop modprobe binfmt-464c
khelper used greatest stack depth: 4240 bytes left
khelper used greatest stack depth: 5400 bytes left
khelper used greatest stack depth: 5356 bytes left
khelper used greatest stack depth: 5296 bytes left
khelper used greatest stack depth: 5292 bytes left
khelper used greatest stack depth: 5220 bytes left
khelper used greatest stack depth: 5216 bytes left
khelper used greatest stack depth: 5152 bytes left

According to google the cause is a 32bits machine running a file system on a 64bits machine. Is it true ?
The file system is located on a server running RHEL 64 bits. The target is Pentium-M. But all the file system was created using an i686 toolchain. Not the one supplied with RHEL.

It seems that the target saw the file system. I have no kernel panic.
But I got the above messages.
The file system is busybox. I have nothing under /etc.
Upon boot completion I want linux to run a simple script.
This script will be in /etc/rc.d/rc.sysinit

The bzImage is located on a USB disk not on the main disk (hda). This is where grub was installed.

I didn't do make modules_install yet. There is no module=xxx in grub's menu.lst. Can this cause the problem ?

Thanks.
 
Old 08-03-2009, 04:26 AM   #2
zvivered
Member
 
Registered: Sep 2007
Posts: 300

Original Poster
Rep: Reputation: 23
Solution: toolchain for busybox

Quote:
Originally Posted by zvivered View Post
Hello,

I built bzImage from 2.6.30.1, and ran it on a Pentium-M CPU. The file system is NFS. After few seconds I saw the following messages:

VFS: Mounted root (nfs filesystem) readonly on device 0:16
async_waiting @ 1
async_continuing @ 1 after 0 usec
Freeing unused kernel memory: 348k freed
Write protecting the kernel text: 4204k
Write protecting the kernel read-only data: 2084k
request_module: runaway loop modprobe binfmt-464c
request_module: runaway loop modprobe binfmt-464c
khelper used greatest stack depth: 5672 bytes left
request_module: runaway loop modprobe binfmt-464c
request_module: runaway loop modprobe binfmt-464c
request_module: runaway loop modprobe binfmt-464c
khelper used greatest stack depth: 4240 bytes left
khelper used greatest stack depth: 5400 bytes left
khelper used greatest stack depth: 5356 bytes left
khelper used greatest stack depth: 5296 bytes left
khelper used greatest stack depth: 5292 bytes left
khelper used greatest stack depth: 5220 bytes left
khelper used greatest stack depth: 5216 bytes left
khelper used greatest stack depth: 5152 bytes left

According to google the cause is a 32bits machine running a file system on a 64bits machine. Is it true ?
The file system is located on a server running RHEL 64 bits. The target is Pentium-M. But all the file system was created using an i686 toolchain. Not the one supplied with RHEL.

It seems that the target saw the file system. I have no kernel panic.
But I got the above messages.
The file system is busybox. I have nothing under /etc.
Upon boot completion I want linux to run a simple script.
This script will be in /etc/rc.d/rc.sysinit

The bzImage is located on a USB disk not on the main disk (hda). This is where grub was installed.

I didn't do make modules_install yet. There is no module=xxx in grub's menu.lst. Can this cause the problem ?

Thanks.
The toolchain I used for building busybox was for an x86-64 machine. But my target is an x86-32 machine. After building with the right toolchain the message disappeared.
 
  


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