dmesg:

kernel BUG at page_alloc.c:81!
invalid operand: 0000
CPU:    0
EIP:    0010:[<c012cb58>]
EFLAGS: 00010282
eax: 0000001f   ebx: c181b6e8   ecx: 00000002   edx: 00000002
esi: 00000530   edi: eee832c4   ebp: 00000000   esp: f53adecc
ds: 0018   es: 0018   ss: 0018
Process xemacs (pid: 1539, stackpage=f53ad000)
Stack: c022cde9 c022cebe 00000051 c181b6e8 00000530 eee832c4 00000000 00000000 
       c181b6e8 c181b6e8 c0123d33 c181b6e8 c012d423 c0123f9a c181b6e8 f53adf40 
       eee832cc eee832c4 eee832d4 e77d27c0 c181b6e8 f53adf40 c0124068 eee83220 
Call Trace: [<c0123d33>] [<c012d423>] [<c0123f9a>] [<c0124068>] [<c0147e6e>] [<c0146106>] [<c013ef0d>] 
       [<c013efe6>] [<c0106cdb>] 

Code: 0f 0b 83 c4 0c 8d 76 00 8b 43 18 a8 20 74 19 6a 53 68 be ce 


ksymoops:

>>EIP; c012cb58 <__free_pages_ok+a8/310>   <=====
Trace; c0123d33 <remove_inode_page+3b/48>
Trace; c012d423 <__free_pages+1b/1c>
Trace; c0123f9a <truncate_list_pages+142/1b4>
Trace; c0124068 <truncate_inode_pages+5c/94>
Trace; c0147e6e <iput+a2/168>
Trace; c0146106 <d_delete+62/a0>
Trace; c013ef0d <vfs_unlink+179/1ac>
Trace; c013efe6 <sys_unlink+a6/118>
Trace; c0106cdb <system_call+33/38>
Code;  c012cb58 <__free_pages_ok+a8/310>
00000000 <_EIP>:
Code;  c012cb58 <__free_pages_ok+a8/310>   <=====
   0:   0f 0b                     ud2a      <=====
Code;  c012cb5a <__free_pages_ok+aa/310>
   2:   83 c4 0c                  add    $0xc,%esp
Code;  c012cb5d <__free_pages_ok+ad/310>
   5:   8d 76 00                  lea    0x0(%esi),%esi
Code;  c012cb60 <__free_pages_ok+b0/310>
   8:   8b 43 18                  mov    0x18(%ebx),%eax
Code;  c012cb63 <__free_pages_ok+b3/310>
   b:   a8 20                     test   $0x20,%al
Code;  c012cb65 <__free_pages_ok+b5/310>
   d:   74 19                     je     28 <_EIP+0x28> c012cb80 <__free_pages_ok+d0/310>
Code;  c012cb67 <__free_pages_ok+b7/310>
   f:   6a 53                     push   $0x53
Code;  c012cb69 <__free_pages_ok+b9/310>
  11:   68 be ce 00 00            push   $0xcebe


/usr/src/linux-2.4/scripts/ver_linux:
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux jim.imdb.com 2.4.4 #21 SMP Sat Jun 16 23:10:05 BST 2001 i686 unknown
 
Gnu C                  egcs-2.91.66
Gnu make               3.78.1
binutils               2.9.5.0.22
util-linux             2.10p
mount                  2.10r
modutils               2.4.2
e2fsprogs              1.19
reiserfsprogs          3.x.0j
PPP                    2.4.0
Linux C Library        2.1.3
Dynamic linker (ldd)   2.1.3
Procps                 2.0.6
Net-tools              1.54
Console-tools          0.3.3
Sh-utils               2.0
Modules Loaded         bsd_comp ppp_async ppp_generic slhc ipchains tdfx w83781d eeprom sensors i2c-isa i2c-piix4 i2c-core via-rhine de4x5 es1371 ac97_codec