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SubjectRe: 2.3.42 crashes on boot (Was: [PATCH] devfs v99.11 available)
On Wed, 9 Feb 2000, Richard Gooch wrote:

> NOTE: the devfs-patch-v99.x patches are maintenance patches for the
> 2.2.x production kernels. Devfs development is done against recent
> development kernels. Occasionally, the latest devfs patch for the
> development kernels may be backported to 2.2.x series, but this
> happens rarely.
>
> This is against 2.2.14. Highlights of this release:
>
> - Ported devfs-patch-v99.10 to kernel 2.2.14
>
> - Moved /dev/tty0 to /dev/vc/0

It's very nice, but can somebody explain why 2.3.42 with devfs v.154 crashes
on boot ? Initrd strikes back ?

Here is the oops:

=== Cut ===
ksymoops 0.7c on i686 2.3.36. Options used
-V (specified)
-K (specified)
-L (specified)
-o /lib/modules/kernel/2.3.42/ (specified)
-m /boot/System.map-2.3.42 (specified)

No modules in ksyms, skipping objects
Unable to handle kernel NULL pointer dereference at virtual address 00000038
c0149ba1
*pde = 00104001
Oops: 0000
CPU: 0
EIP: 0010:[<c0149ba1>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000038 ebx: 00000000 ecx: c02839f2 edx: c14fbe54
esi: 00000018 edi: c14fbe54 ebp: ffffffed esp: c14fbb00
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 1, stackpage=c14fb000)
Stack: 00000100 00000000 c14fbb6c c14fbd04 c0283acd c14fbe54 c14fbca8 c02a00e0
c0277fc8 00000000 00001000 c02839f2 00000000 c14fbb6c 00000000 00000000
00000000 00000000 c14fbc4c c14fbe54 c14fbca8 00000000 00000000 00000000
Call Trace: [<c0110018>] [<c01081cb>] [<c010a010>]
Code: 39 46 20 74 2a 50 8b 46 20 50 68 c0 9e 21 c0 e8 53 52 fd ff
>>EIP; c0149ba1 <blkdev_open+19/dc> <=====
Trace; c0110018 <do_int+a8/1b4>
Trace; c01081cb <init+5f/1e4>
Trace; c010a010 <kernel_thread+28/38>
Code; c0149ba1 <blkdev_open+19/dc>
00000000 <_EIP>:
Code; c0149ba1 <blkdev_open+19/dc> <=====
0: 39 46 20 cmp %eax,0x20(%esi) <=====
Code; c0149ba4 <blkdev_open+1c/dc>
3: 74 2a je 2f <_EIP+0x2f> c0149bd0 <blkdev_open+48/dc>
Code; c0149ba6 <blkdev_open+1e/dc>
5: 50 push %eax
Code; c0149ba7 <blkdev_open+1f/dc>
6: 8b 46 20 mov 0x20(%esi),%eax
Code; c0149baa <blkdev_open+22/dc>
9: 50 push %eax
Code; c0149bab <blkdev_open+23/dc>
a: 68 c0 9e 21 c0 push $0xc0219ec0
Code; c0149bb0 <blkdev_open+28/dc>
f: e8 53 52 fd ff call fffd5267 <_EIP+0xfffd5267> c011ee08 <printk+0/1f4>
=== Cut ===
===========================================================================
Sergey Kubushin aka the Tamer < > The impossible we do immediately.
e-mail: ksi@ksi-linux.com SK320-RIPE < > Miracles require 24-hour notice.
===========================================================================

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