http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1719
Summary: guest boot very slowly without limit dom0 cpu number on
EX
Product: Xen
Version: unstable
Platform: Other
OS/Version: Windows
Status: NEW
Severity: normal
Priority: P1
Component: HVM
AssignedTo: xen-bugs@lists.xensource.com
ReportedBy: shaohui.zheng@intel.com
Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows): Linux/Windows
Change Set: 22764
Hardware: WSM-EX, NHM-EX
Bug detailed description:
--------------------------
In WSM-EX and NHM-EX platforms, if we did not limit max vcpus number of dom0,
guest will spend more time in bios before go to grub(about two minutes), it
will cost 5~8 minutes to boot up a guest.
If limit dom0's vcpus with "dom0_max_vcpus=2" in xen grub line, guest boot
normally.
Long time ago, a guest boot slow issue opened on NHM-EX and Xiaowei fix it.
Reproduce steps:
----------------
1. install Xen on EX machine
2. boot to Xen/Dom0, (no limited dom0 vcpus)
3. create guest
4. guest OS is slow to boot
Current result:
----------------
Expected result:
----------------
Basic root-causing log:
--
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Summary: guest boot very slowly without limit dom0 cpu number on
EX
Product: Xen
Version: unstable
Platform: Other
OS/Version: Windows
Status: NEW
Severity: normal
Priority: P1
Component: HVM
AssignedTo: xen-bugs@lists.xensource.com
ReportedBy: shaohui.zheng@intel.com
Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows): Linux/Windows
Change Set: 22764
Hardware: WSM-EX, NHM-EX
Bug detailed description:
--------------------------
In WSM-EX and NHM-EX platforms, if we did not limit max vcpus number of dom0,
guest will spend more time in bios before go to grub(about two minutes), it
will cost 5~8 minutes to boot up a guest.
If limit dom0's vcpus with "dom0_max_vcpus=2" in xen grub line, guest boot
normally.
Long time ago, a guest boot slow issue opened on NHM-EX and Xiaowei fix it.
Reproduce steps:
----------------
1. install Xen on EX machine
2. boot to Xen/Dom0, (no limited dom0 vcpus)
3. create guest
4. guest OS is slow to boot
Current result:
----------------
Expected result:
----------------
Basic root-causing log:
--
Configure bugmail: http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.
_______________________________________________
Xen-bugs mailing list
Xen-bugs@lists.xensource.com
http://lists.xensource.com/xen-bugs