RE: Soft lockup on Opteron cpu (2.6.15.4).

["Salyzyn, Mark" <mark_salyzyn@adaptec.com>]

The lockup occurred in the network code it looks like?

The report from dpt_i2o indicates that a command took longer than
expected, but was apparently dealt with. Could the extended response
time to storage tickle the network code or the soft lockup detection?

The fix may very well be to ensure that the scsi bus is stable. Cabling,
termination, drive firmware, card firmware, and drive status (age?) are
all in tip top condition. Would not hurt to call Adaptec Technical
support to ensure that you follow a cookbook checkout of the scsi bus
components.

Sincerely -- Mark Salyzyn

> -----Original Message-----
> From: linux-kernel-owner@vger.kernel.org 
> [mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of Andy Davidson
> Sent: Thursday, April 06, 2006 1:11 AM
> To: Linux Kernel Mailing List
> Subject: Soft lockup on Opteron cpu (2.6.15.4).
> 
> 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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