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Date:	Sun, 25 May 2008 19:27:29 +0200 (MEST)
From:	Mikael Pettersson <mikpe@...uu.se>
To:	shemminger@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: sky2 oops in 2.6.26-rc3

Shortly after booting 2.6.26-rc3 on my ASUS P5B-E Plus
today, the kernel oopsed in sky2_mac_intr, leaving the
system totally dead. I had to copy the oops manually:

Call trace:
  sky2_hw_error
  sky2_poll
  run_rebalance_domains
  net_rx_action
  __do_softirq
  smp_apic_timer_interrupt
  mwait_idle
  apic_timer_interrupt
  mwait_idle
  mwait_idle
  cpu_idle
EIP: sky2_mac_intr+0x32

lspci -vvxxx on the sky2 chip shows:

02:00.0 Ethernet controller: Marvell Technology Group Ltd. Unknown device 4364 (rev 12)
	Subsystem: ASUSTeK Computer Inc. Unknown device 81f8
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 17
	Region 0: Memory at ff9fc000 (64-bit, non-prefetchable) [size=16K]
	Region 2: I/O ports at c800 [size=256]
	Expansion ROM at ff9c0000 [disabled] [size=128K]
	Capabilities: [48] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=1 PME-
	Capabilities: [50] Vital Product Data
	Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
		Address: 0000000000000000  Data: 0000
	Capabilities: [e0] Express Legacy Endpoint IRQ 0
		Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
		Device: Latency L0s unlimited, L1 unlimited
		Device: AtnBtn- AtnInd- PwrInd-
		Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
		Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
		Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
		Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 0
		Link: Latency L0s <256ns, L1 unlimited
		Link: ASPM Disabled RCB 128 bytes CommClk+ ExtSynch-
		Link: Speed 2.5Gb/s, Width x1
	Capabilities: [100] Advanced Error Reporting
00: ab 11 64 43 07 00 10 00 12 00 00 02 08 00 00 00
10: 04 c0 9f ff 00 00 00 00 01 c8 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 f8 81
30: 00 00 9c ff 48 00 00 00 00 00 00 00 0a 01 00 00
40: 00 00 f0 01 00 80 a0 01 01 50 03 fe 00 20 00 13
50: 03 5c 00 80 00 00 00 01 00 00 00 01 05 e0 80 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 70 00 00 00 00 00 00 82 a8 e8 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 10 00 11 00 c0 8f 00 00 00 20 19 00 11 ac 07 00
f0: 48 00 11 10 00 00 00 00 00 00 00 00 00 00 00 00

This is the first time I've seen this problem.

I do have a recurring problem where the sky2 chip sometimes
isn't detected on a cold boot. A reboot typically solves that.

/Mikael
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