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Date: Fri, 22 Mar 2002 00:23:46 +0100 (CET)
From: Luigi Genoni <kernel@Expansa.sns.it>
To: linux-kernel@vger.kernel.org, <green@namesys.com>
Subject: oops mounting reiserFS with 2.5.7
Message-ID: <Pine.LNX.4.44.0203220017200.2260-100000@Expansa.sns.it>
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HI,

here is the oops i get mounting reiserFS filesystem with kernel 2.5.7,
just after the message:

found reiserfs format "3.6" with standard journal


Unable to handle kernel NULL pointer dereference at virtual address
00000010
c013415a
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c013415a>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010282
eax: 00001000   ebx: 0000000f   ecx: 00000009   edx: 00002012
esi: 00000009   edi: 00002012   ebp: 00000000   esp: df97fd94
ds: 0018   es: 0018   ss: 0018
Stack: 00001000 00002012 00000000 df80b000 df80b000 c0134858 00000000 00002012
       00001000 df80b000 e08a7000 e08b83ec c0134a97 00000000 00002012 00001000
       df80b000 c017b30c 00000000 00002012 00001000 00000811 00000000 df80b154
Call Trace: [<c0134858>] [<c0134a97>] [<c017b30c>] [<c01338b0>] [<c016d439>]
   [<c016dd4c>] [<c01858a4>] [<c01393e1>] [<c0137fa0>] [<c016e13f>] [<c016dc20>]
   [<c01381a0>] [<c0149679>] [<c0149960>] [<c014979d>] [<c0149d84>] [<c0107047>]
Code: 0f b7 45 10 b0 00 66 0f b6 55 10 01 d0 0f b7 c0 89 44 24 10


>>EIP; c013415a <__get_hash_table+1a/c0>   <=====

>>eax; 00001000 Before first symbol
>>edx; 00002012 Before first symbol
>>edi; 00002012 Before first symbol
>>esp; df97fd94 <_end+1f6aa7e8/2052ca54>

Trace; c0134858 <__getblk+18/40>
Trace; c0134a97 <__bread+17/70>
Trace; c017b30c <journal_init+dc/690>
Trace; c01338b0 <__wait_on_buffer+80/90>
Trace; c016d439 <read_bitmaps+c9/160>
Trace; c016dd4c <reiserfs_fill_super+12c/4b0>
Trace; c01858a4 <sprintf+14/20>
Trace; c01393e1 <bdevname+31/3a>
Trace; c0137fa0 <get_sb_bdev+1e0/250>
Trace; c016e13f <reiserfs_get_sb+1f/30>
Trace; c016dc20 <reiserfs_fill_super+0/4b0>
Trace; c01381a0 <do_kern_mount+50/d0>
Trace; c0149679 <do_add_mount+69/140>
Trace; c0149960 <do_mount+170/190>
Trace; c014979d <copy_mount_options+4d/a0>
Trace; c0149d84 <sys_mount+a4/110>
Trace; c0107047 <syscall_call+7/b>

Code;  c013415a <__get_hash_table+1a/c0>
00000000 <_EIP>:
Code;  c013415a <__get_hash_table+1a/c0>   <=====
   0:   0f b7 45 10               movzwl 0x10(%ebp),%eax   <=====
Code;  c013415e <__get_hash_table+1e/c0>
   4:   b0 00                     mov    $0x0,%al
Code;  c0134160 <__get_hash_table+20/c0>
   6:   66 0f b6 55 10            movzbw 0x10(%ebp),%dx
Code;  c0134165 <__get_hash_table+25/c0>
   b:   01 d0                     add    %edx,%eax
Code;  c0134167 <__get_hash_table+27/c0>
   d:   0f b7 c0                  movzwl %ax,%eax
Code;  c013416a <__get_hash_table+2a/c0>
  10:   89 44 24 10               mov    %eax,0x10(%esp,1)


The hardware is an AMD Athlon 1300 Mhz 200 MhzFSB,
MB Abit KT133A (via chipset), with 512MB RAM,
and three scsi disks on an adaptec 2940,

kernel is compiled with gcc 2.95.3 and binutils 2.12.90.0.1

This oops is coerent with the message i get booting
a Pentium III 1Ghz on i810 chipset,
at less seeing the EIP (rootfs is reiserFS, and i could not
save the oops).

I am willing to test any patch.

Hope this helps

Luigi

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