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[Bug 1644] xen does not boot when iommu is on after upgrading to xen 4.0.1-rc5 from rc3
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1644





------- Comment #23 from darkbasic4@gmail.com 2011-01-20 13:10 -------
Sorry for the late answer but I had some problems with the serial console...

xen_log.log is the log with iommu=passthrough iommu=verbose console=hvc0
earlyprintk=xen nomodeset initcall_debug debug loglevel=10.

log_only_verbose.log is a smaller log with iommu=verbose only.

Debian Squeeze gained a new hypervisor revision (it's the one I used for the
logs), here is the changelog:

linux-image-2.6.32-5-xen-amd64 2.6.32-30
xen-hypervisor-4.0-amd64 4.0.1-2

Changes:
xen (4.0.1-2) unstable; urgency=low
* Fix races in memory management.
* Make sure that frame-table compression leaves enough alligned.
* Disable XSAVE support. (closes: #595490)
* Check for dying domain instead of raising an assertion.
* Add C6 state with EOI errata for Intel.
* Make some memory management interrupt safe. Unsure if really needed.
* Raise bar for inter-socket migrations on mostly-idle systems.
* Fix interrupt handling for legacy routed interrupts.
* Allow to set maximal domain memory even during a running change.
* Support new partition name in pygrub. (closes: #599243)
* Fix some comparisions "< 0" that may be optimized away.
* Check for MWAIT support before using it.
* Fix endless loop on interrupts on Nehalem cpus.
* Don't crash upon direct GDT/LDT access. (closes: #609531)
CVE-2010-4255
* Don't loose timer ticks after domain restore.
* Reserve some space for IOMMU area in dom0. (closes: #608715)
* Fix hypercall arguments after trace callout.
* Fix some error paths in vtd support. Memory leak.
* Reinstate ACPI DMAR table.


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[Bug 1644] xen does not boot when iommu is on after upgrading to xen 4.0.1-rc5 from rc3 [ In reply to ]
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1644





------- Comment #24 from darkbasic4@gmail.com 2011-01-20 13:12 -------
Created an attachment (id=974)
--> (http://bugzilla.xensource.com/bugzilla/attachment.cgi?id=974&action=view)
Full log

with iommu=passthrough iommu=verbose console=hvc0 earlyprintk=xen nomodeset
initcall_debug debug loglevel=10


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[Bug 1644] xen does not boot when iommu is on after upgrading to xen 4.0.1-rc5 from rc3 [ In reply to ]
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1644





------- Comment #25 from darkbasic4@gmail.com 2011-01-20 13:12 -------
Created an attachment (id=975)
--> (http://bugzilla.xensource.com/bugzilla/attachment.cgi?id=975&action=view)
verbose only

a smaller log with iommu=verbose only


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[Bug 1644] xen does not boot when iommu is on after upgrading to xen 4.0.1-rc5 from rc3 [ In reply to ]
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1644





------- Comment #26 from konrad.wilk@oracle.com 2011-01-20 14:15 -------
Hmm, not seeing the Xen lines?? Are there any errors by the Xen hypervisor?


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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1644





------- Comment #27 from darkbasic4@gmail.com 2011-01-20 14:23 -------
No, it hangs at "failed command: READ DMA" and I have to reset.
http://img299.imageshack.us/img299/194/img4400lowres.jpg

It boots flawlessly with iommu=no.


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