2.6.0-test1 oops mm/slab.c:1631

Hello,

Always don't know exactly how to reproduce this oops, it occurs randomsly...
I don't know if it is hardware related,
or if I am doing something nasty ... :(, however never hanged on XP.

Regards

Nicolas.

Jul 14 18:35:05 hal9003 kernel: ------------[ cut here ]------------
Jul 14 18:35:05 hal9003 kernel: kernel BUG at mm/slab.c:1631!
Jul 14 18:35:05 hal9003 kernel: invalid operand: 0000 [#1]
Jul 14 18:35:05 hal9003 kernel: CPU:    0
Jul 14 18:35:05 hal9003 kernel: EIP:    0060:[kmem_cache_free+662/752]    Not 
tainted
Jul 14 18:35:05 hal9003 kernel: EIP:    0060:[<c01361a5>]    Not tainted
Jul 14 18:35:05 hal9003 kernel: EFLAGS: 00010087
Jul 14 18:35:05 hal9003 kernel: EIP is at kmem_cache_free+0x296/0x2f0
Jul 14 18:35:05 hal9003 kernel: eax: c17668a8   ebx: 007668a8   ecx: f7ffd580   
edx: f7ffd580
Jul 14 18:35:05 hal9003 kernel: esi: 00001000   edi: ef5d1000   ebp: cc719f9c   
esp: cc719f74
Jul 14 18:35:05 hal9003 kernel: ds: 007b   es: 007b   ss: 0068
Jul 14 18:35:05 hal9003 kernel: Process sh (pid: 21061, threadinfo=cc718000 
task=d3df5000)
Jul 14 18:35:05 hal9003 kernel: Stack: fffffff4 00000003 00000101 00000001 
c01477ca f7ffb794 00000296 00000003
Jul 14 18:35:05 hal9003 kernel:        e0295708 ef5d1000 cc719fbc c01477ca 
f7ffd580 ef5d1000 00000000 0810d848
Jul 14 18:35:05 hal9003 kernel:        0810d7a0 4003de9f cc718000 c0108fe3 
0810d848 00000000 00000000 0810d7a0
Jul 14 18:35:05 hal9003 kernel: Call Trace:
Jul 14 18:35:05 hal9003 kernel:  [sys_open+120/133] sys_open+0x78/0x85
Jul 14 18:35:05 hal9003 kernel:  [<c01477ca>] sys_open+0x78/0x85
Jul 14 18:35:05 hal9003 kernel:  [sys_open+120/133] sys_open+0x78/0x85
Jul 14 18:35:05 hal9003 kernel:  [<c01477ca>] sys_open+0x78/0x85
Jul 14 18:35:05 hal9003 kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Jul 14 18:35:05 hal9003 kernel:  [<c0108fe3>] syscall_call+0x7/0xb
Jul 14 18:35:05 hal9003 kernel:
Jul 14 18:35:05 hal9003 kernel: Code: 0f 0b 5f 06 d3 fa 2a c0 e9 cc fd ff ff 

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