MPC83xx and Gianfar Drive Oops

[Liu Dave-r63238]

Do testing with the latest kernel version,
see if it still have the oops.


________________________________

	From: linuxppc-embedded-bounces+daveliu=freescale.com at ozlabs.org
[mailto:linuxppc-embedded-bounces+daveliu=freescale.com at ozlabs.org] On
Behalf Of SIP COP 009
	Sent: Tuesday, August 29, 2006 7:34 AM
	To: linuxppc-embedded at ozlabs.org
	Cc: sipcop009 at gmail.com
	Subject: MPC83xx and Gianfar Drive Oops
	
	
	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
	
	

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