skb_over_panic: text:c0276d74 len:70 put:7

[Krishna]

UDP throughput run with basic router on MPC8572 with 2.6.27 linux kernel routing is crashing with the following dump. A bidirection 64 byte UDP traffic test running at 60Mbps throughput on each interface aggregrating to 240Mbps across the system.

Any on seen this issue. seems to be issue with ethernet driver...any one have any solution of this issue
   4 root 15 -5 0 skb_over_panic: text:c0276d74 len:70 put:70 head:e
f355000 data:ef350040 tail:0xef355386 end:0xef350040 dev:eth24279951087304208182
 0 0 S -0 ------------[ cut here ]------------1:45.38 top
Kernel BUG at c03777a8 [verbose debug info unavailable]9.98 events/0
Oops: Exception in kernel mode, sig: 5 [#1]0 0.0 0:27.16 events/1
SMP NR_CPUS=2 MPC8572 DS292 660 572 S 0 -2.0 0:01.30 init
Modules linked in: -5 0 0 0 S 0 0.0 0:00.00 kthreadd
NIP: c03777a8 LR: c03777a8 CTR: c0224f60 0 0.0 0:00.00 migration/0
REGS: ef867da0 TRAP: 0700 Not tainted (2.6.27.6) 0:00.00 migration/1
MSR: 00029000 <EE,ME> CR: 24024022 XER: 20000000 0:00.00 khelper TASK = ef844500[4] 'ksoftirqd/0' THREAD: ef866000 CPU: 0.12 kblockd/0
GPR00: c03777a8 ef867e50 ef844500 00000073 00021000 ffffffff c02283ec 00005115
GPR08: 00000001 c059a18c 00005115 c059a1d0 24024082 1009c8a0 eecfde00 eed87400
GPR16: 00000010 ef997000 00000000 00000001 ef997400 ef997470 00000000 00000000
GPR24: 000000f4 eedf3560 eed875d0 eef4a340 ef997000 00000046 ef997400 ef355340 NIP [c03777a8] skb_over_panic+0x48/0x5c LR [c03777a8] skb_over_panic+0x48/0x5c Call Trace:
[ef867e50] [c03777a8] skb_over_panic+0x48/0x5c (unreliable) [ef867e60] [c03794f0] skb_put+0x5c/0x60 [ef867e70] [c0276d74] gfar_clean_rx_ring+0x1b0/0x770 [ef867ee0] [c0278ad0] gfar_poll+0x228/0x4f0 [ef867f30] [c03834d8] net_rx_action+0x10c/0x1cc [ef867f70] [c003fa78] __do_softirq+0x98/0x12c [ef867fa0] [c0004bdc] do_softirq+0x60/0x64 [ef867fb0] [c003f93c] ksoftirqd+0x80/0x124 [ef867fd0] [c005163c] kthread+0x48/0x84 [ef867ff0] [c000e83c] kernel_thread+0x44/0x60 Instruction dump:
80a30054 80e300a4 2f800000 810300a8 8163009c 814300a0 419e0020 3c60c053
7d695b78 3863b8fc 90010008 4bcc3481 <0fe00000> 48000000 3d20c04e 380977c0 Kernel panic - not syncing: Fatal exception in interrupt ------------[ cut here ]------------ Badness at c005ec7c [verbose debug info unavailable]
NIP: c005ec7c LR: c005ee9c CTR: c0224f60
REGS: ef867ad0 TRAP: 0700 Tainted: G D (2.6.27.6)
MSR: 00021000 <ME> CR: 24024024 XER: 20000000 TASK = ef844500[4] 'ksoftirqd/0' THREAD: ef866000 CPU: 0
GPR00: 00000001 ef867b80 ef844500 ef867c18 c000f998 00000000 00000000 00005736
GPR08: 00000001 c05d0000 00005736 00000003 24024024 1009c8a0 eecfde00 eed87400
GPR16: 00000010 ef997000 00000000 00000001 ef997400 ef997470 00000000 00000000
GPR24: 000000f4 eedf3560 00000000 c000f998 c04e7ae8 00000000 ef867c18 c05d0000 NIP [c005ec7c] smp_call_function_mask+0x34/0x224 LR [c005ee9c] smp_call_function+0x30/0x40 Call Trace:
[ef867b80] [ef867bc0] 0xef867bc0 (unreliable) [ef867c10] [c005ee9c] smp_call_function+0x30/0x40 [ef867c20] [c000fb58] smp_send_stop+0x20/0x30 [ef867c30] [c0039cd0] panic+0x98/0x160 [ef867c80] [c000c404] die+0x16c/0x178 [ef867ca0] [c000c6a8] _exception+0x154/0x19c [ef867d90] [c000f0d8] ret_from_except_full+0x0/0x4c [ef867e50] [c03777a8] skb_over_panic+0x48/0x5c [ef867e60] [c03794f0] skb_put+0x5c/0x60 [ef867e70] [c0276d74] gfar_clean_rx_ring+0x1b0/0x770 [ef867ee0] [c0278ad0] gfar_poll+0x228/0x4f0 [ef867f30] [c03834d8] net_rx_action+0x10c/0x1cc [ef867f70] [c003fa78] __do_softirq+0x98/0x12c [ef867fa0] [c0004bdc] do_softirq+0x60/0x64 [ef867fb0] [c003f93c] ksoftirqd+0x80/0x124 [ef867fd0] [c005163c] kthread+0x48/0x84 [ef867ff0] [c000e83c] kernel_thread+0x44/0x60 Instruction dump:
7c0802a6 7d800026 bf010070 7c7e1b78 90010094 7c9b2378 9181006c 7cba2b78
7cdd3378 7c0000a6 68008000 54008ffe <0f000000> 54290024 3d60c05d 81490008 ------------[ cut here ]------------ Badness at c005eb74 [verbose debug info unavailable]
NIP: c005eb74 LR: c005eddc CTR: c0224f60
REGS: ef867a90 TRAP: 0700 Tainted: G D W (2.6.27.6)
MSR: 00021000 <ME> CR: 44024028 XER: 20000000 TASK = ef844500[4] 'ksoftirqd/0' THREAD: ef866000 CPU: 0
GPR00: 00000001 ef867b40 ef844500 00000001 c000f998 00000000 00000000 00000000
GPR08: 00000000 ef866000 00000002 00000000 24024024 1009c8a0 eecfde00 eed87400
GPR16: 00000010 ef997000 00000000 00000001 ef997400 ef997470 00000000 00000000
GPR24: 000000f4 eedf3560 00000000 c000f998 00000001 00000001 c000f998 00000000 NIP [c005eb74] smp_call_function_single+0x30/0x104
LR [c005eddc] smp_call_function_mask+0x194/0x224
Call Trace:
[ef867b80] [c005eddc] smp_call_function_mask+0x194/0x224
[ef867c10] [c005ee9c] smp_call_function+0x30/0x40 [ef867c20] [c000fb58] smp_send_stop+0x20/0x30 [ef867c30] [c0039cd0] panic+0x98/0x160 [ef867c80] [c000c404] die+0x16c/0x178 [ef867ca0] [c000c6a8] _exception+0x154/0x19c [ef867d90] [c000f0d8] ret_from_except_full+0x0/0x4c [ef867e50] [c03777a8] skb_over_panic+0x48/0x5c [ef867e60] [c03794f0] skb_put+0x5c/0x60 [ef867e70] [c0276d74] gfar_clean_rx_ring+0x1b0/0x770 [ef867ee0] [c0278ad0] gfar_poll+0x228/0x4f0 [ef867f30] [c03834d8] net_rx_action+0x10c/0x1cc [ef867f70] [c003fa78] __do_softirq+0x98/0x12c [ef867fa0] [c0004bdc] do_softirq+0x60/0x64 [ef867fb0] [c003f93c] ksoftirqd+0x80/0x124 [ef867fd0] [c005163c] kthread+0x48/0x84

[Jim Lieb (lieb)]

This is an undentified version (possibly 8.10?) for the PowerPC