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Hi all,
On Cset 12444 when creating and destroying two SMP_XenU guests, I
met xen0 crashed. I can reproduce it for many times. This problem also
existed on Cset 12425. The steps are:
1. Create 2 SMP_XenU guests at the same time;
2. When they booted up, type "xm destroy <id>", xen0 will crash.

Log is:
~~~~~~~~~~~~~~~~~~~
(XEN) vcpu_get_lrr0: Unmasked interrupts unsupported
(XEN) vcpu_get_lrr1: Unmasked interrupts unsupported
(XEN) lookup_domain_mpa: d 0xf000000007c54080 id 1 current
0xf000000007c28000 id
0
(XEN) lookup_domain_mpa: bad mpa 0xffffc019064 (=> 0x20000000)
(XEN) Warning: UC to WB for mpaddr=ffffc019064
(XEN) lookup_domain_mpa: d 0xf000000007bd0080 id 2 current
0xf000000007ba8000 id
0
(XEN) lookup_domain_mpa: bad mpa 0xffffc019064 (=> 0x20000000)
(XEN) Warning: UC to WB for mpaddr=ffffc019064
(XEN) BUG at mm.c:407
(XEN) FIXME: implement ia64 dump_execution_state()
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 2:
(XEN) BUG at mm.c:407
(XEN) ****************************************
(XEN)
(XEN) Reboot in five seconds...
~~~~~~~~~~~~~~~~~~~

BTW, Env is:
Service OS: RHEL4u3 IA64 with 2 CPUs
xen0's sched: credit

Thanks,
Zhangjingke

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