Re: oops mounting reiserFS with 2.5.7

[Hans Reiser <reiser@namesys.com>]

There is a patch for this, it is on our website I believe.  The bug was 
not introduced by the ReiserFS team.....

Linus is out or we'd be sending it to him.

Hans

bvermeul@devel.blackstar.nl wrote:

>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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>