Soft lockup on Opteron cpu (2.6.15.4).

[Andy Davidson]

Hi,

I've just had a nasty oops on an amd64 server.  Sadly I wasn't able  
to capture the entire stack trace, but I did get :
  http://elvis.nosignal.org/~andy/opteron_panic.jpg

Nothing was logged to syslog at the point of the panic, immediately  
before the server fell over there was this logged :

Apr  6 01:03:40 freezer kernel: dpti0: Trying to Abort cmd=61901448
Apr  6 01:03:51 freezer kernel: dpti0: Abort cmd not supported
Apr  6 01:03:51 freezer kernel: dpti0: Trying to reset device
Apr  6 01:03:51 freezer kernel: dpti0: Device reset not supported
Apr  6 01:03:51 freezer kernel: dpti0: Bus reset: SCSI Bus 0: tid: 9
Apr  6 01:03:51 freezer kernel: dpti0: Bus reset success.


I understand why a soft lockup might cause the kernel to oops.  What  
I don't understand is whether the above dpt flap could have caused  
the lockup ?  I've just upgraded to 2.6.16.1.

Anyone seen this before ?  Any more clues ?

cpu is dual AMD Opteron Processor 246.

other hardware :
0000:00:06.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8111 PCI  
(rev 07)
0000:00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-8111 LPC  
(rev 05)
0000:00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-8111 IDE  
(rev 03)
0000:00:07.2 SMBus: Advanced Micro Devices [AMD] AMD-8111 SMBus 2.0  
(rev 02)
0000:00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-8111 ACPI (rev 05)
0000:00:0a.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X  
Bridge (rev 12)
0000:00:0a.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X APIC  
(rev 01)
0000:00:0b.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X  
Bridge (rev 12)
0000:00:0b.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X APIC  
(rev 01)
0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:19.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:19.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:19.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:00:19.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
0000:02:05.0 RAID bus controller: Adaptec (formerly DPT) SmartRAID V  
Controller (rev 01)
0000:02:09.0 Ethernet controller: Broadcom Corporation NetXtreme  
BCM5704 Gigabit Ethernet (rev 03)
0000:02:09.1 Ethernet controller: Broadcom Corporation NetXtreme  
BCM5704 Gigabit Ethernet (rev 03)
0000:03:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-8111  
USB (rev 0b)
0000:03:00.1 USB Controller: Advanced Micro Devices [AMD] AMD-8111  
USB (rev 0b)
0000:03:05.0 Unknown mass storage controller: Silicon Image, Inc.  
(formerly CMD Technology Inc) SiI 3114 [SATALink/SATARaid] Serial ATA  
Controller (rev 02)
0000:03:06.0 VGA compatible controller: ATI Technologies Inc Rage XL  
(rev 27)
0000:03:08.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro  
100] (rev 10)


.config at :  http://elvis.nosignal.org/~andy/opteron.config.txt

Using dpt_i2o as had problems with machines of the same hardware  
build (Adaptec SR V) when trying i2o_block on opteron around six  
months ago.



Thanks for reading this mail,
Andy


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