port-xen/48477: systat vm on DOMU reports missing kernel symbols

[gary%duzan.org@localhost]

>Number:         48477
>Category:       port-xen
>Synopsis:       systat vm on DOMU reports missing kernel symbols
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-xen-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 24 16:05:00 +0000 2013
>Originator:     Gary Duzan
>Release:        NetBSD 6.1_STABLE Sat Dec 21 16:22:17 EST 2013
>Organization:
        n/a
>Environment:
System: NetBSD xen1.duzan.org 6.1_STABLE NetBSD 6.1_STABLE (XEN3_DOMU) #8: Sat 
Dec 21 16:22:17 EST 2013 
root%nbsd.xnet.duzan.org@localhost:/usr/build/netbsd-6/obj/usr/build/netbsd-6/src/sys/arch/amd64/compile/XEN3_DOMU
 amd64
Architecture: x86_64
Machine: amd64
>Description:
# systat vm

          systat: nlist: can't find following symbols:
          _intrnames
          _eintrnames
          _intrcnt
          _eintrcnt
          _allevents

>How-To-Repeat:
        As described above. Non-Xen works fine, as do other systat
        screens on DOMU. Current as of 2013-12-24 is also fine.
        The kernel is stock XEN3_DOMU with IPSEC and IPSEC_ESP
        enabled in GENERIC.local, and userland was built at the
        same time. Also saw this in a November 27th netbsd-6 branch
        build.
>Fix:
        Unknown. Specifying -N /netbsd, where /netbsd is the same
        as the running DOMU kernel, makes it work properly, so my
        guess is that there is an issue with /dev/ksyms in DOMU
        kernels.