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ip_vs_random_dropentry() oops

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: ip_vs_random_dropentry() oops
From: Roger Tsang <roger.tsang@xxxxxxxxx>
Date: Mon, 29 Aug 2005 19:11:27 -0400
Hey guys,

Got an oops while using kernel-2.6.10-bk8 with some SSI enhancements, but I 
think this oops is an LVS issue. Anybody know why? Thanks.

Roger


<1>Unable to handle kernel paging request at virtual address 00100100
<1> printing eip:
<4>c03a61a0
<1>*pde = 00000000
<1>Oops: 0000 [#1]
more> 
Only 'q' or 'Q' are processed at more prompt, input ignored
<4>Modules linked in: ipt_REJECT ipt_state ip_conntrack ipt_multiport 
iptable_filter ip_tables uhci_hcd ehci_hcd usbcore video button drbd sk98lin 
r8169 8139too
<4>CPU: 0
<4>EIP: 0060:[<c03a61a0>] Not tainted VLI
<4>EFLAGS: 00010246 (2.6.10-bk8-ssi) 
<4>EIP is at ip_vs_random_dropentry+0x30/0x120
<4>eax: 00000000 ebx: 00100100 ecx: 002716ed edx: 00100100
<4>esi: e080c000 edi: 0000ca12 ebp: c15e9f38 esp: c15e9f24
<4>ds: 007b es: 007b ss: 0068
<4>Process events/0 (pid: 4, threadinfo=c15e8000 task=dfda2000)
<4>Stack: c4f4d2e0 000004a6 00000297 00000000 c0574ce4 c15e9f40 c03a7e17 
c15e9fbc 
<4> c012a696 00000000 c15e9f70 00000000 dffe7658 dffe7648 dffe7650 c03a7df0 
<4> c15e8000 ffffffff ffffffff 00000001 00000000 c0116840 00010000 00000000 
<4>Call Trace:
<4> [<c0104b4f>] show_stack+0x7f/0xa0
<4> [<c0104ce5>] show_registers+0x155/0x220
<4> [<c010506c>] die+0xcc/0x190
<4> [<c0114cbd>] do_page_fault+0x48d/0x68a
<4> [<c01047cb>] error_code+0x2b/0x30
<4> [<c03a7e17>] defense_work_handler+0x27/0x40
<4> [<c012a696>] worker_thread+0x186/0x230
<4> [<c012e7be>] kthread+0x9e/0xe0
<4> [<c01009f5>] kernel_thread_helper+0x5/0x10
more> 
Only 'q' or 'Q' are processed at more prompt, input ignored
<4>Code: 53 83 ec 08 c7 45 f0 ff 07 00 00 e8 eb b1 fb ff 8b 35 14 60 66 c0 
0f b7 f8 8b 1c fe eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 90 <8b> 13 8d 74 
26 00 8d 04 fe 39 d8 0f 84 84 00 00 00 66 83 7b 14 
<4> 
kdb> bt
Stack traceback for pid 4
0xdfda2000 4 2 1 0 R 0xdfda21c0 *events/0
EBP EIP Function (args)
0xc15e9f38 0xc03a61a0 ip_vs_random_dropentry+0x30
0xc15e9f40 0xc03a7e17 defense_work_handler+0x27 (0x0, 0xc15e9f70, 0x0, 
0xdffe7658, 0xdffe7648)
0xc15e9fbc 0xc012a696 worker_thread+0x186 (0xdffe7640, 0xc15e9fd8, 0x0, 
0xfffffffc, 0xc012a510)
0xc15e9fec 0xc012e7be kthread+0x9e
0xc01009f5 kernel_thread_helper+0x5
kdb>

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