[OOPS] K2.4.20: "Kernel bug at slab.c:1128" - sch related

From: Catalin BOIE (util@ns2.deuroconsult.ro)
Date: Sat Jan 25 2003 - 04:55:50 EST


I use a custom script to generate qdiscs/classes/filters that triggers a
kernel oops.

Kernel 2.4.20
Pentium IV 1.2 GHz

Kernel bug at slab.c:1128
Invalid operand: 0000
CPU: 0
EIP: 0010:[<c0127ab4>] not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
EAX: ffffffff EBX: c12c52c0 ECX: 000001f0 EDX: 00000000
ESI: 000001f0 EDI: c12c52c0 EBP: 000001f0 ESP: ceab1c60
DS: 0018 ES: 0018 SS: 0018
Process autohash (pid: 109, stackpage=ceab1000)
Stack: [<c12c5200>] [<c12c52c8>] [<00000246>] [<000001f0>] [<cf8bb000>]
[<c0127e0f>] [<c12c52c0>] [<000001f0>] [<00000064>] [<c0256640>]
[<cfed8c00>] [<c01d3cac>] [<00000064>] [<000001f0>] [<cfed4400>]
[<ce59ac00>] [<ce59b060>] [<ce59b060>] [<d081ecc7>] [<cfed8c00>]
Call trace: [<c0127e0f>] [<c01d3cac>] [<d081ecc7>] [<c01d5265>]
            [<c01d27e4>] [<c01d0605>] [<c01d7cd4>] [<c01d7730>]
            [<c01c79d5>] [<c01c8b48>] [<c0120010>] [<c0120d8e>]
            [<c0123543>] [<c0123743>] [<c0123a74>] [<c012396c>]
Code: 0f 0b 68 04 c0 50 21 c0 c7 44 24 10 01 00 00 00 b8 03 00 00

>>EIP; c0127ab4 <kmem_cache_grow+44/1d8> <=====

>>EAX; ffffffff <END_OF_CODE+3fd31247/????>
>>EBX; c12c52c0 <END_OF_CODE+ff6508/????>
>>EDI; c12c52c0 <END_OF_CODE+ff6508/????>
>>ESP; ceab1c60 <END_OF_CODE+e7e2ea8/????>

Trace; c0127e0f <kmalloc+eb/110>
Trace; c01d3cac <qdisc_create_dflt+20/bc>
Trace; d081ecc7 <END_OF_CODE+1054ff0f/????>
Trace; c01d5265 <tc_ctl_tclass+1cd/214>
Trace; d0820600 <END_OF_CODE+10551848/????>
Trace; c01d27e4 <rtnetlink_rcv+298/3bc>
Trace; c01d0605 <__neigh_event_send+89/1b4>
Trace; c01d7cd4 <netlink_data_ready+1c/60>
Trace; c01d7730 <netlink_unicast+230/278>
Trace; c01d7b73 <netlink_sendmsg+1fb/20c>
Trace; c01c79d5 <sock_sendmsg+69/88>
Trace; c01c8b48 <sys_sendmsg+18c/1e8>
Trace; c0120010 <map_user_kiobuf+8/f8>
Trace; c0120d8e <handle_mm_fault+52/b0>
Trace; c0111394 <do_page_fault+160/480>
Trace; c0123543 <do_generic_file_read+1f7/404>
Trace; c0123743 <do_generic_file_read+3f7/404>
Trace; c0123a74 <generic_file_read+7c/110>
Trace; c012396c <file_read_actor+0/8c>
Trace; c01c8fcc <sys_socketcall+1e4/200>
Trace; c0106bc7 <system_call+33/38>

Code; c0127ab4 <kmem_cache_grow+44/1d8>
00000000 <_EIP>:
Code; c0127ab4 <kmem_cache_grow+44/1d8> <=====
   0: 0f 0b ud2a <=====
Code; c0127ab6 <kmem_cache_grow+46/1d8>
   2: 68 04 c0 50 21 push $0x2150c004
Code; c0127abb <kmem_cache_grow+4b/1d8>
   7: c0 c7 44 rol $0x44,%bh
Code; c0127abe <kmem_cache_grow+4e/1d8>
   a: 24 10 and $0x10,%al
Code; c0127ac0 <kmem_cache_grow+50/1d8>
   c: 01 00 add %eax,(%eax)
Code; c0127ac2 <kmem_cache_grow+52/1d8>
   e: 00 00 add %al,(%eax)
Code; c0127ac4 <kmem_cache_grow+54/1d8>
  10: b8 03 00 00 00 mov $0x3,%eax


Catalin(ux) BOIE

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This archive was generated by hypermail 2b29 : Fri Jan 31 2003 - 22:00:01 EST