Hang problem on Dell 1850 and 2850 using Perc megaraid controller

Hang problem on Dell 1850 and 2850 using Perc megaraid controller

[Joe Wilhelmi]

Friends of MegaRAID,

I have been noticing a hang problem on my 1850 and 2850 systems when
using the Perc4 controllers in a RAID 1 configuration using
LSI_COMMON_MOD_VERSION 2.20.2.6 on the linux 2.6.14 kernel.  I can
repeatedly reproduce the problem by copying about 580MB of data to the
disk from an NFS share. 

If I install my system in bios SCSI mode, which uses the LSI scsi
controller and fusion driver instead of MegaRAID, this issue goes away:
I can copy the 580MB of data without the hang.

Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x
card with the same RAID 1 configuration with the same OS and version of
the driver.  The hang did not occur.

It seems that the issue is in some part of the MegaRAID driver that
deals specifically with the Perc cards in the 2850 and the 1850 and not
with the LSI MegaRAID cards.

I need to mention that the kernel has been built with MSI and ACPI
disabled because of issues with our e1000 ethernet adapter.  Because
ACPI was disabled, we also disabled hw_random.  Snare is also built in.


The following are the relevant firmware versions:
Dell 1850 Perc Controller: H418
Dell 2850 Perc Controller: H430
Lsi Ultra-320-2X:          H409

I appreciate any help or thoughts,

Regards,
Joe Wilhelmi
RTLogic

RE: Hang problem on Dell 1850 and 2850 using Perc megaraid controller

[Ju, Seokmann]

Hi,

> Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x
> card with the same RAID 1 configuration with the same OS and 
> version of
> the driver.  The hang did not occur.
Can you elaborate which PERC4 controller are on both 1850 and 2850?
Do both PERC4 controllers have PCI-X interface as MegaRAID SCSI-320-2X?
 
> It seems that the issue is in some part of the MegaRAID driver that
> deals specifically with the Perc cards in the 2850 and the 
> 1850 and not
> with the LSI MegaRAID cards.
> 
> I need to mention that the kernel has been built with MSI and ACPI
> disabled because of issues with our e1000 ethernet adapter.  Because
> ACPI was disabled, we also disabled hw_random.  Snare is also 
> built in.
>
> The following are the relevant firmware versions:
> Dell 1850 Perc Controller: H418
> Dell 2850 Perc Controller: H430
> Lsi Ultra-320-2X:          H409
Thank you for detail descriptin on the issue.
It will be duplicated and will update you as soon as possible.

Thank you,

> -----Original Message-----
> From: linux-scsi-owner@vger.kernel.org 
> [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Joe Wilhelmi
> Sent: Monday, February 06, 2006 1:57 PM
> To: Linux-scsi@vger.kernel.org
> Subject: Hang problem on Dell 1850 and 2850 using Perc 
> megaraid controller
> 
> Friends of MegaRAID,
> 
> I have been noticing a hang problem on my 1850 and 2850 systems when
> using the Perc4 controllers in a RAID 1 configuration using
> LSI_COMMON_MOD_VERSION 2.20.2.6 on the linux 2.6.14 kernel.  I can
> repeatedly reproduce the problem by copying about 580MB of data to the
> disk from an NFS share. 
> 
> If I install my system in bios SCSI mode, which uses the LSI scsi
> controller and fusion driver instead of MegaRAID, this issue 
> goes away:
> I can copy the 580MB of data without the hang.
> 
> Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x
> card with the same RAID 1 configuration with the same OS and 
> version of
> the driver.  The hang did not occur.
> 
> It seems that the issue is in some part of the MegaRAID driver that
> deals specifically with the Perc cards in the 2850 and the 
> 1850 and not
> with the LSI MegaRAID cards.
> 
> I need to mention that the kernel has been built with MSI and ACPI
> disabled because of issues with our e1000 ethernet adapter.  Because
> ACPI was disabled, we also disabled hw_random.  Snare is also 
> built in.
> 
> 
> The following are the relevant firmware versions:
> Dell 1850 Perc Controller: H418
> Dell 2850 Perc Controller: H430
> Lsi Ultra-320-2X:          H409
> 
> I appreciate any help or thoughts,
> 
> Regards,
> Joe Wilhelmi
> RTLogic
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe 
> linux-scsi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

RE: Hang problem on Dell 1850 and 2850 using Perc megaraid controller

[Joe Wilhelmi]

Hello,

The controllers in the 2850 and the 1850 are perc4/ei.  However I do not
know if they have the same PCI bridge chip as the Ultra-320-2X.  The
SCSI chip is an LSI 1030 which I believe is a pciX connection.  There is
also a Dobson on the motherboard that I believe connects over the PCIeX
interface.  I think the Dobson is related to the romb dimm.

Thanks for the help,
Joe

-----Original Message-----
From: Ju, Seokmann [mailto:Seokmann.Ju@lsil.com] 
Sent: Monday, February 06, 2006 12:19 PM
To: Joe Wilhelmi; Linux-scsi@vger.kernel.org
Subject: RE: Hang problem on Dell 1850 and 2850 using Perc megaraid
controller


Hi,

> Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x 
> card with the same RAID 1 configuration with the same OS and version 
> of the driver.  The hang did not occur.
Can you elaborate which PERC4 controller are on both 1850 and 2850? Do
both PERC4 controllers have PCI-X interface as MegaRAID SCSI-320-2X?
 
> It seems that the issue is in some part of the MegaRAID driver that 
> deals specifically with the Perc cards in the 2850 and the 1850 and 
> not with the LSI MegaRAID cards.
> 
> I need to mention that the kernel has been built with MSI and ACPI 
> disabled because of issues with our e1000 ethernet adapter.  Because 
> ACPI was disabled, we also disabled hw_random.  Snare is also built 
> in.
>
> The following are the relevant firmware versions:
> Dell 1850 Perc Controller: H418
> Dell 2850 Perc Controller: H430
> Lsi Ultra-320-2X:          H409
Thank you for detail descriptin on the issue.
It will be duplicated and will update you as soon as possible.

Thank you,

> -----Original Message-----
> From: linux-scsi-owner@vger.kernel.org
> [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Joe Wilhelmi
> Sent: Monday, February 06, 2006 1:57 PM
> To: Linux-scsi@vger.kernel.org
> Subject: Hang problem on Dell 1850 and 2850 using Perc 
> megaraid controller
> 
> Friends of MegaRAID,
> 
> I have been noticing a hang problem on my 1850 and 2850 systems when 
> using the Perc4 controllers in a RAID 1 configuration using 
> LSI_COMMON_MOD_VERSION 2.20.2.6 on the linux 2.6.14 kernel.  I can 
> repeatedly reproduce the problem by copying about 580MB of data to the

> disk from an NFS share.
> 
> If I install my system in bios SCSI mode, which uses the LSI scsi 
> controller and fusion driver instead of MegaRAID, this issue goes 
> away: I can copy the 580MB of data without the hang.
> 
> Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x 
> card with the same RAID 1 configuration with the same OS and version 
> of the driver.  The hang did not occur.
> 
> It seems that the issue is in some part of the MegaRAID driver that 
> deals specifically with the Perc cards in the 2850 and the 1850 and 
> not with the LSI MegaRAID cards.
> 
> I need to mention that the kernel has been built with MSI and ACPI 
> disabled because of issues with our e1000 ethernet adapter.  Because 
> ACPI was disabled, we also disabled hw_random.  Snare is also built 
> in.
> 
> 
> The following are the relevant firmware versions:
> Dell 1850 Perc Controller: H418
> Dell 2850 Perc Controller: H430
> Lsi Ultra-320-2X:          H409
> 
> I appreciate any help or thoughts,
> 
> Regards,
> Joe Wilhelmi
> RTLogic
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe
> linux-scsi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>