Comment 6 for bug 1596635

------- Comment From <email address hidden> 2016-06-29 14:00 EDT-------
(In reply to comment #28)
> This bug is awaiting verification that the kernel in -proposed solves the
> problem. Please test the kernel and update this bug with the results. If the
> problem is solved, change the tag 'verification-needed-xenial' to
> 'verification-done-xenial'.
>
> If verification is not done by 5 working days from today, this fix will be
> dropped from the source code, and this bug will be closed.
>
> See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
> enable and use -proposed. Thank you!

Hello Canonical,

I did apply the -proposed kernel and we still hit this issue....system is in xmon now.
0:mon> ls linux_banner
linux_banner: c000000000b000f0
0:mon> d c000000000b000f0
c000000000b000f0 4c696e7578207665 7273696f6e20342e |Linux version 4.|
c000000000b00100 342e302d32382d67 656e657269632028 |4.0-28-generic (|
c000000000b00110 6275696c64644062 6f7330312d707063 |buildd@bos01-ppc|
c000000000b00120 3634656c2d303138 2920286763632076 |64el-018) (gcc v|
0:mon> e
cpu 0x0: Vector: 300 (Data Access) at [c000000fe9eaf760]
pc: c000000000882bfc: xhci_irq+0x1bc/0xf50
lr: c000000000882ad0: xhci_irq+0x90/0xf50
sp: c000000fe9eaf9e0
msr: 9000000102009033
dar: 28
dsisr: 40000000
current = 0xc000000fe5c2b710
paca = 0xc000000007b40000 softe: 0 irq_happened: 0x01
pid = 3945, comm = libvirtd
0:mon>