Hello! 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>] [<ce59ac00>] [<cfed8c00>] [<c01d3cac>] [<00000064>] [<000001f0>] [<cfed4400>] [<cf115034>] [<ce59ac00>] [<ce59b060>] [<ce59b060>] [<d081ecc7>] [<cfed8c00>] [<c0256640>] [<fffffffe>] Call trace: [<c0127e0f>] [<c01d3cac>] [<d081ecc7>] [<c01d5265>] [<d0820600>] [<c01d27e4>] [<c01d0605>] [<c01d7cd4>] [<c01d7730>] [<c01d7b73>] [<c01c79d5>] [<c01c8b48>] [<c0120010>] [<c0120d8e>] [<c0111394>] [<c0123543>] [<c0123743>] [<c0123a74>] [<c012396c>] [<c01c8fcc>] [<c0106bc7>] 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 Thanks! --- Catalin(ux) BOIE catab@deuroconsult.ro - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html