[Xen-devel] Strange Error Regarding Grant Tables

[Jayson Vantuyl <jvantuyl@xxxxxxxxxxxxxx>]

I asked this on the users list but didn't get a response.  Maybe you guys can help.

When I do "xm dmesg", I see a number of errors like these:

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) mm.c:566:d35 Non-privileged (35) attempt to map I/O space 000000f0

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) mm.c:566:d36 Non-privileged (36) attempt to map I/O space 000000f0

(XEN) mm.c:566:d37 Non-privileged (37) attempt to map I/O space 000000f0

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

(XEN) grant_table.c:799:d0 Bad flags (0) or dom (0). (expected dom 0)

I'm not positive, but they appear to coincide with a lot of block traffic.  Otherwise the system seems to work, although has erratic slowdowns.  Is this bad?

-- 

Jayson Vantuyl

Systems Architect

Engine Yard

jvantuyl@xxxxxxxxxxxxxx

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