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Date: Fri, 22 Mar 2002 14:28:36 +0100 (CET)
From: <bvermeul@devel.blackstar.nl>
To: Luigi Genoni <kernel@Expansa.sns.it>
cc: <linux-kernel@vger.kernel.org>, <green@namesys.com>
Subject: Re: oops mounting reiserFS with 2.5.7
In-Reply-To: <Pine.LNX.4.44.0203220017200.2260-100000@Expansa.sns.it>
Message-ID: <Pine.LNX.4.33.0203221427040.23476-100000@devel.blackstar.nl>
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Hi,

I've seen the same on an Athlon 700 MHz with 1.2 GB of memory.
2.4.12-ac5 could read it just fine.

I can't test or reproduce, since I've since replaced reiserfs with ext3
on that box.

Bas Vermeulen

> 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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