[Xen-bugs] [Bug 838] New: context_switch() should defer actually switching context untill all hypervisor work is finished

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=838

           Summary: context_switch() should defer actually switching context
                    untill all hypervisor work is finished
           Product: Xen
           Version: unstable
          Platform: PPC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jimix@xxxxxxxxxxxxxx


A workaround for this was pushed as:
changeset:   13188:6af601c5ebe1
tag:         tip
user:        Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
date:        Fri Dec 15 08:36:03 2006 -0500
summary:     [XEN][POWERPC] workaround for context_switch() bug

The problem is that because we immediately switch to another domain without
satisfiying all interrupts (particularly the TIMER_SOFTIRQ) we do not complete
all  the work the hypervisor was supposed to complete.

The more I think about this the scarrier it is.


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