MPC83xx and Gianfar Drive Oops

[SIP COP 009]

Folks,

Anyone seen this before ?

We have the MPC8349 based EVM board which has 2 GigEs. IP forwarding is
enabled on the system. The kernel/gianfar is  2.6.11 based.

We were trying to stress the GigE interfaces by sending bidirectional
smartbits traffic.

We observe the following kernel oops:
e-99-0-21-1# Oops: Exception in kernel mode, sig: 5 [#1]
NIP: C016EB80 LR: C016EB80 SP: C0241DE0 REGS: c0241d30 TRAP: 0700
Tainted: P
MSR: 00029032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c022bdb0[0] 'swapper'
THREAD: c0240000 Last syscall: 120
GPR00: C016EB80 C0241DE0 C022BDB0 00000030 C0263BF4 000001A1 DF700060
3B9ACA00
GPR08: C0263BF8 C023DB24 DEA5DE9C C0241CF0 00003C9B 1001A1F8 1FFF8000
00000000
GPR16: FFFFFFFF 00000001 00000000 1FFF297C 1FF9E330 00000001 007FFF00
C0230000
GPR24: 00000001 0000FFFC DFD6B800 0000003F DDC42F48 00000000 D7FA9140
DFD6BA20 Call trace: [c01495d4]  [c0149748]  [c0176078]  [c0018d34]
[c0018e00] [c0005438]  [c000460c]  [c00038ac]  [c00054d0]  [c0003928]
[c0242674] [000035fc] Kernel panic - not syncing: Aiee, killing interrupt
handler!
  <0>Rebooting in 180 seconds..

After decoding this it looks like the following:

Enter hex value: c01495d4
0xc01495d4:gfar_error(0xc01494bc)+0x118
Enter hex value: c0149748
0xc0149748:gfar_gdrvinfo(0xc0149718)+0x30
Enter hex value: c0176078
0xc0176078:dev_ioctl(0xc0175f0c)+0x16c
Enter hex value: c0018d34
0xc0018d34:__do_softirq(0xc0018cb4)+0x80
Enter hex value: c0018e00
0xc0018e00:do_softirq(0xc0018da8)+0x58
Enter hex value: c0005438
0xc0005438:do_IRQ(0xc00053b4)+0x84
Enter hex value: c000460c
0xc000460c:ret_from_except(0xc000460c)+0x0
Enter hex value: c00038ac
0xc00038ac:ppc6xx_idle(0xc00037c8)+0xe4
Enter hex value: c00054d0
0xc00054d0:cpu_idle(0xc00054a8)+0x28

Any idea on this one ? Any new fixes that went in for such issues ?

Thanks!
ashutosh
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060828/aefee557/attachment.htm