[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] xenconsoled: ignore spurious watch event
# HG changeset patch # User max.zhen@xxxxxxx # Date 1171024588 28800 # Node ID a2d15838ea72ee049d8a657e9ecd406b5c6cb53e # Parent d609929f140809ec1c9a059f2eeaffb7ce56c891 Xenconsoled should ignore spurious watch event. Otherwise, xenconsoled could bind to a dying domU during its suspending and cause complaint from Xen: (XEN) event_channel.c:177:d0 EVTCHNOP failure: domain 0, error -22, line 177 Signed-off-by: Max Zhen <max.zhen@xxxxxxx> diff --git a/tools/console/daemon/io.c b/tools/console/daemon/io.c --- a/tools/console/daemon/io.c +++ b/tools/console/daemon/io.c @@ -63,6 +63,7 @@ struct domain char *conspath; int ring_ref; evtchn_port_t local_port; + evtchn_port_t remote_port; int xce_handle; struct xencons_interface *interface; }; @@ -234,6 +235,9 @@ static int domain_create_ring(struct dom if (err) goto out; + if ((ring_ref == dom->ring_ref) && (remote_port == dom->remote_port)) + goto out; + if (ring_ref != dom->ring_ref) { if (dom->interface != NULL) munmap(dom->interface, getpagesize()); @@ -249,6 +253,7 @@ static int domain_create_ring(struct dom } dom->local_port = -1; + dom->remote_port = -1; if (dom->xce_handle != -1) xc_evtchn_close(dom->xce_handle); @@ -270,6 +275,7 @@ static int domain_create_ring(struct dom goto out; } dom->local_port = rc; + dom->remote_port = remote_port; if (dom->tty_fd == -1) { dom->tty_fd = domain_create_tty(dom); @@ -279,6 +285,7 @@ static int domain_create_ring(struct dom xc_evtchn_close(dom->xce_handle); dom->xce_handle = -1; dom->local_port = -1; + dom->remote_port = -1; goto out; } } @@ -336,6 +343,7 @@ static struct domain *create_domain(int dom->ring_ref = -1; dom->local_port = -1; + dom->remote_port = -1; dom->interface = NULL; dom->xce_handle = -1; _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |