observed by Oliver Welter:

------------[ cut here ]------------
kernel BUG at kernel/exit.c:548!
invalid operand: 0000 [#1]
CPU:    0
EIP:    0060:[<c0117ba4>]    Not tainted VLI
EFLAGS: 00010046   (2.6.15.4-vs2.1.1-rc9-gentoo)
EIP is at exit_notify+0x694/0x880
eax: f77dd600   ebx: f77ddb44   ecx: f77dd570   edx: 00000001
esi: f77dda90   edi: f77dda90   ebp: f77dd570   esp: f702df5c
ds: 007b   es: 007b   ss: 0068
Process vcontext (pid: 1817[#666], threadinfo=f702c000 task=f77dd570)
Stack: 00000000 0000071a 00000001 c01dae4d f77dd61c 00000000 f77dd61c
f702df78
       f702df78 f767ffe0 f77dd570 00000000 00000001 c0117f36 f77dd570
c0507450
       00000001 f702dfa4 00000000 bfb093ec 00000009 f702c000 c011810d
c010292f
Call Trace:
 [<c01dae4d>] ext3_destroy_inode+0x1d/0x30
 [<c0117f36>] do_exit+0x1a6/0x350
 [<c011810d>] sys_exit+0xd/0x10
 [<c010292f>] sysenter_past_esp+0x54/0x75
Code: ff 8b 54 24 1c 8d 46 70 89 42 04 89 56 70 8d 54 24 1c 89 50 04 89
44 24 1c e9 ff f9 ff ff 0f 0b 9e 02 bc 85 40 c0 e9 2e fa ff ff <0f> 0b
24 02 bc 85 40 c0 e9 3a fa ff ff 8b 41 10 85 c0 0f 85 74
 <1>Fixing recursive fault but reboot is needed!