[Xen-devel] Critical bug: VT-d fault causes disk corruption or Dom0 kernel panic.

["Li, Haicheng" <haicheng.li@xxxxxxxxx>]

All,

We met several system failures on different hardware platforms, which are all 
caused by VT-d fault. 
err 1: disk is corrupted by VT-d fault on SATA.
err 2: Dom0 kernel panics at booting, which is caused VT-d fault on UHCI.
err 3, Dom0 complains disk errors while creating HVM guests.

The culprit would be changeset 19054 "x86_64: Remove statically-partitioned Xen 
heap.".

Detailed error logs can be found via BZ#, 
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1409.


-haicheng
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