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Jan 24, 2011, 8:28 AM
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[Bug 1727] New: Hypevisor hangs on boot.
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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1727
Summary: Hypevisor hangs on boot.
Product: Xen
Version: unstable
Platform: x86-64
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs [at] lists
ReportedBy: dmitry.trikoz [at] stratus
The problem is found on Intel Server Board:
Bios Version: S5500.86B.01.00.0055.112620101923
Platform ID: S5520HC
8192 MB system memory found
Current Memory Speed: 1333 MHz
Intel(R) Xeon(R) CPU X5650 @ 2.67GHz
Intel(R) Xeon(R) CPU X5650 @ 2.67GHz
This system has 2 physical CPUs, each has 6 cores with hyper threading.
Total 24 CPUs.
The problem was found in xen 3.3.1 and reproduced with xen 4.0.1.
The hang happens during SMP initialisation when boot CPU brings up AP CPUs.
the system hangs sometimes for several seconds and sometimes for several hours.
The hang happens shortly after "Asserting INIT" in wakeup_secondary_cpu().
It looks like BIOS bug but regular linux kernel 2.6.18 boots on this system
without any problem.
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