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[Xen-bugs] [Bug 1354] New: aacraid crash when high I/O on dom0

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Subject: [Xen-bugs] [Bug 1354] New: aacraid crash when high I/O on dom0
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Date: Sat, 20 Sep 2008 11:25:08 -0700
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           Summary: aacraid crash when high I/O on dom0
           Product: Xen
           Version: 3.0.3
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hardware Support
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: alexandre.ellert@xxxxxxx

I'm trying to get xen working on my server using an Adaptec 2820SA card.
Everything went fine : xen installed, network OK, domU installed ...

But when i got high I/O, module aacraid says :

"aacraid: Host adapter abort request (0,0,0,0)
aacraid: Host adapter reset request. SCSI hang ?
AAC: Host adapter BLINK LED 0x57
AAC0: adapter Kernel panic'd 57"

Then, the only way is to push reset button to reboot the server.

I can reproduce this "SCSI Hang" using bonnie++ to stress filesystem.

Note that, bonnie++ runs fine with default kernel (ie
kernel-2.6.18-92.1.10.el5), so it appears to ben a xen issue.

I'm using Centos 5.2 with official xen packages :
- kernel-xen-2.6.18-92.1.10.el5
- xen-3.0.3-64.el5_2.1
My motherboard (Intel Entry Server Board S3000AH) BIOS is up to date and so is
my Adaptec controller BIOS (.
I replace default Centos aacraid module by last version on adaptec.com

I got same issue using debian etch dom0, xennified kernel from debian package,
xen 3.2 package from debian backports and last aacraid module.

Thanks for your help.

PS : I report this to adaptec support, they don't know whhat's going wrong for
instance. I run Centos because it's supported by Adaptec (but i prefer Debian

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