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The kernel oops on the failover (backup) director and I have the following
on all nodes. I suppose the rest of the settings were at their defaults.
echo "1" > /proc/sys/net/ipv4/vs/drop_entry
echo "1" > /proc/sys/net/ipv4/vs/drop_packet
echo "1" > /proc/sys/net/ipv4/vs/secure_tcp
echo "8192" > /proc/sys/net/ipv4/vs/amemthresh
/sbin/ipvsadm --set 900 120 300 # tcp tcpfin udp
Roger
On 8/29/05, Roger Tsang <roger.tsang@xxxxxxxxx> wrote:
>
> 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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