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RE: [Xen-devel] Testing status of HVM (Intel VT) on 64bit XEN unstable c/s 11686

  • To: "Tim Deegan" <Tim.Deegan@xxxxxxxxxxxxx>
  • From: "Ed Smith" <esmith@xxxxxxxxxxxxxxx>
  • Date: Wed, 4 Oct 2006 09:22:49 -0400
  • Cc: Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Wed, 04 Oct 2006 06:23:21 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acbntzl+NBzGyroMRjiq6in9lArNCAAAClUg
  • Thread-topic: [Xen-devel] Testing status of HVM (Intel VT) on 64bit XEN unstable c/s 11686

These bugs happen every time for me.  To reproduce the bug I do the

- Boot a release build of XEN
- Launch a RHEL4U2-32bit HVM guest, 256MB, 2CPU SMP kernel, 4GB swap
file, local SATA disk
- ssh into the guest and run the following test:
  # while [ 1 ]; do mtest01 -v -p80; done
- Within 1 or 2 passes of the test I hit one of the several crashes
- Nothing else is running on the guest and this is the only guest
running on XEN.

Hope this helps,

-----Original Message-----
From: Tim Deegan [mailto:Tim.Deegan@xxxxxxxxxxxxx] 
Sent: Wednesday, October 04, 2006 9:13 AM
To: Ed Smith
Cc: Xen Devel
Subject: Re: [Xen-devel] Testing status of HVM (Intel VT) on 64bit XEN
unstable c/s 11686

Hi Ed, 

At 16:05 -0400 on 03 Oct (1159891531), Ed Smith wrote:
> - NEW: Domain crash running ltp "mtest01 -p80" on 32bit SMP
>   HVM guest and then XEN locked up requiring a hard reset:
>   domain_crash_sync called from private.h:495 (failure.8)
> - XEN crash running ltp "mtest01 -p80" on 32bit SMP HVM guest:
>   BUG at multi.c:2967 from sh_page_fault__shadow_3_guest_3 (failure.3)

We're having some difficulty reproducing these failures.  Are you
running full ltp tests or just the mtest01 binary?  Are you running
anything else in the VM at the time?  How often do the failures occur?
Was there a difference between the tests which caused the two failures
or did they happen on different runs of the same test?



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