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xsrc/47099: Running NetBSD 6 as VMware workstation guest, starting X hangs when NetBSD is allocated >1 CPUs

>Number:         47099
>Category:       xsrc
>Synopsis:       Running NetBSD as vmware workstation guest, starting X hangs 
>when NetBSD is allocated > 1 CPUs
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    xsrc-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Oct 20 21:50:01 +0000 2012
>Originator:     Howard Guo
>Release:        NetBSD 6.0
System: NetBSD 6.0 NetBSD 6.0 (GENERIC) amd64
Architecture: x86_64
Machine: amd64
In xorg.conf, input device uses "vmmouse" driver and graphical device uses 
"vmware" driver.
In ".xinitrc", I specify either startxfce4 or startkde (both of them may be 
used to replicate this issue).
Run `startx`. If NetBSD is allocated more than 1 CPU core, it will hang and 
NetBSD loses responsiveness totally. Host CPU usage on the allocated cores will 
be 100%.
If NetBSD is allocated only one CPU core, `startx` will work reliably.
1. Allocate 2, 4 or 8 CPU cores to NetBSD guest
2. Run `startx`
3. Observe that NetBSD loses responsiveness and host CPU core usage on the 
allocated cores are 100%

`startx` never has a problem when NetBSD runs on only one CPU core.


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