[Xen-users] Xen-4.4.1-xs90192-d: Xen BUG at spinlock.c:48

[Christian Fischer <cf@xxxxxxxxxxxxxxxxxxxxxxx>]

Hello,

the installation of XS-6.5 panics on SuperMicro X8DAH, Bios 2.1, 2x X5550.
I've searched for any helpful, but nothing found. How can I work around or solve
the problem? Hints are welcome.

Thanks
Christian

.584746] Xen BUG at spinlock.c:48
(XEN) [   42.584749] ----[ Xen-4.4.1-xs90192-d  x86_64  debug=y  Not tainted 
]----
(XEN) [   42.584751] CPU:    3
(XEN) [   42.584753] RIP:    e008:[<ffff82d08012b903>] check_lock+0x3d/0x43
(XEN) [   42.584757] RFLAGS: 0000000000010046   CONTEXT: hypervisor

[...]

(XEN) [   42.584868] Xen call trace:
(XEN) [   42.584870]    [<ffff82d08012b903>] check_lock+0x3d/0x43
(XEN) [   42.584873]    [<ffff82d08012babe>] _spin_lock+0x11/0x48
(XEN) [   42.584876]    [<ffff82d08014a8c7>] find_upstream_bridge+0x78/0xee
(XEN) [   42.584878]    [<ffff82d0801506a5>] msi_msg_write_remap_rte+0x374/0x5c5
(XEN) [   42.584881]    [<ffff82d0801476d4>] iommu_update_ire_from_msi+0x36/0x38
(XEN) [   42.584884]    [<ffff82d08016c655>] write_msi_msg+0x41/0x183
(XEN) [   42.584886]    [<ffff82d08016e036>] __setup_msi_irq+0x3a/0x44
(XEN) [   42.584888]    [<ffff82d08016e07e>] setup_msi_irq+0x3e/0x49
(XEN) [   42.584891]    [<ffff82d08017217d>] map_domain_pirq+0x444/0x5b7
(XEN) [   42.584893]    [<ffff82d080184dbc>] physdev_map_pirq+0x545/0x617
(XEN) [   42.584895]    [<ffff82d0801854e7>] do_physdev_op+0x659/0x115e
(XEN) [   42.584898]    [<ffff82d08022f15b>] syscall_enter+0xeb/0x145
(XEN) [   42.584899] 
(XEN) [   42.925361] 
(XEN) [   42.927406] ****************************************
(XEN) [   42.932908] Panic on CPU 3:
(XEN) [   42.936229] Xen BUG at spinlock.c:48
(XEN) [   42.940344] ****************************************
(XEN) [   42.945876] 
(XEN) [   42.947902] Reboot in five seconds...


http://pastebin.com/3SRb4Uiy


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