On Mon, Aug 28, 2006 at 10:16:56AM +1000, Herbert Xu wrote:

cagri coltekin [off-list ref] wrote:

quoted

Aug 25 04:03:35 ns kernel: ------------[ cut here ]------------
Aug 25 04:03:35 ns kernel: kernel BUG at net/ipv6/ip6_output.c:718!
Aug 25 04:03:35 ns kernel: invalid operand: 0000 [#1]
Aug 25 04:03:35 ns kernel: SMP 
Aug 25 04:03:35 ns kernel: Modules linked in: uhci_hcd ehci_hcd ohci_hcd aic7xxx ide_cd
Aug 25 04:03:35 ns kernel: CPU:    3
Aug 25 04:03:35 ns kernel: EIP:    0060:[svc_create_socket+189/416]    Not tainted VLI
Aug 25 04:03:35 ns kernel: EFLAGS: 00010282   (2.6.12.6-ncc-server) 

This is an ancient kernel.  Please really try 2.6.17 instead of just
talking about it (the line number confirms that it is 2.6.12).

Ooops, sorry for the confusion. It happens with 2.6.17 too (see
below), cut&paste from wrong log. The rest of the data provided
in the previous message is actually fresh.

Aug 26 07:09:36 ns kernel: [17180077.732000] ------------[ cut here ]------------
Aug 26 07:09:36 ns kernel: [17180077.792000] kernel BUG at net/ipv6/ip6_output.c:693!
Aug 26 07:09:36 ns kernel: [17180077.856000] invalid opcode: 0000 [#1]
Aug 26 07:09:36 ns kernel: [17180077.900000] SMP 
Aug 26 07:09:36 ns kernel: [17180077.928000] Modules linked in: ide_cd cdrom
Aug 26 07:09:36 ns kernel: [17180077.980000] CPU:    2
Aug 26 07:09:36 ns kernel: [17180077.980000] EIP:    0060:[ip6_fragment+619/1981]    Not tainted VLI
Aug 26 07:09:36 ns kernel: [17180077.980000] EFLAGS: 00010282   (2.6.17.11-ns-debug #6) 
Aug 26 07:09:36 ns kernel: [17180078.148000] EIP is at ip6_fragment+0x26b/0x7bd
Aug 26 07:09:36 ns kernel: [17180078.204000] eax: fffffff2   ebx: fffffdd8   ecx: 000005b8   edx: f5ecc600
Aug 26 07:09:36 ns kernel: [17180078.288000] esi: f5ecc7f8   edi: f5e7bff0   ebp: c2ff6780   esp: f71f5bb8
Aug 26 07:09:36 ns kernel: [17180078.376000] ds: 007b   es: 007b   ss: 0068
Aug 26 07:09:36 ns kernel: [17180078.428000] Process named (pid: 1811, threadinfo=f71f4000 task=f7470a10)
Aug 26 07:09:36 ns kernel: [17180078.508000] Stack: f7208880 000007e0 f5e7bff8 fffffdd8 f71f4000 f71f5bdc 5d000000 00000000 
Aug 26 07:09:36 ns kernel: [17180078.612000]        000007e0 0e030000 ffffffee 000007e0 fffffddc f5e7bff0 f7fd7880 f5ecc048 
Aug 26 07:09:36 ns kernel: [17180078.720000]        f7208880 f7fd7880 f5ecc040 f774c080 c02adcc6 f7208880 c02adac2 c02afcc6 
Aug 26 07:09:36 ns kernel: [17180078.824000] Call Trace:
Aug 26 07:09:36 ns kernel: [17180078.860000]  <c02adcc6> ip6_output+0x3c/0x4c  <c02adac2> ip6_output2+0x0/0x1c8
Aug 26 07:09:36 ns kernel: [17180078.948000]  <c02afcc6> ip6_push_pending_frames+0x250/0x390  <c02c09ea> udp_v6_push_pending_frames+0x13d/0x1a4
Aug 26 07:09:36 ns kernel: [17180079.072000]  <c02c0fdb> udpv6_sendmsg+0x58a/0x953  <c0291d36> udp_recvmsg+0x56/0x24c
Aug 26 07:09:36 ns kernel: [17180079.172000]  <c02986e6> inet_sendmsg+0x4a/0x56  <c0253256> sock_sendmsg+0xeb/0x105
Aug 26 07:09:36 ns kernel: [17180079.264000]  <c01c18cc> __next_cpu+0x22/0x31  <c01167c7> find_busiest_group+0xd6/0x305
Aug 26 07:09:36 ns kernel: [17180079.364000]  <c01177e6> dependent_sleeper+0x1ec/0x32d  <c012f91e> autoremove_wake_function+0x0/0x57
Aug 26 07:09:36 ns kernel: [17180079.476000]  <c01c662e> copy_from_user+0x46/0x7c  <c01c662e> copy_from_user+0x46/0x7c
Aug 26 07:09:36 ns kernel: [17180079.576000]  <c0254d9d> sys_sendmsg+0x191/0x1f8  <c01334c6> futex_wait+0x129/0x238
Aug 26 07:09:36 ns kernel: [17180079.672000]  <c014b75c> find_extend_vma+0x29/0x7e  <c0117927> default_wake_function+0x0/0x12
Aug 26 07:09:36 ns kernel: [17180079.776000]  <c0132b91> futex_wake+0x4a/0xba  <c01667a8> pipe_write+0x0/0x3b
Aug 26 07:09:36 ns kernel: [17180079.864000]  <c01c662e> copy_from_user+0x46/0x7c  <c0255243> sys_socketcall+0x236/0x254
Aug 26 07:09:36 ns kernel: [17180079.964000]  <c0102be3> syscall_call+0x7/0xb 
Aug 26 07:09:36 ns kernel: [17180080.020000] Code: 24 8b 44 24 34 89 50 04 89 5c 24 0c 8b 4c 24 20 8b 45 1c 89 4c 24 04 89 44 24 08 8b 44 24 54 89 04 24 e8 25 a6 fa ff 85 c0 74 08 <0f> 0b b5 02 21 fb 30 c0 0f b7 44 24 1c 8b 4c 24 34 89 c2 c1 e8 
Aug 26 07:09:36 ns kernel: [17180080.264000] EIP: [ip6_fragment+619/1981] ip6_fragment+0x26b/0x7bd SS:ESP 0068:f71f5bb8
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-- 
cagri