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PR: kern/168520

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Submitted by: "YAMAMOTO, Shigeru" <shigeru@iij.ad.jp>
Reviewed by: adrian

In PC-BSD 9.1, VIMAGE is enabled in the kernel config.
For laptops with Bluetooth capability, such as the HP Elitebook 8460p,
the kernel will panic upon bootup, because curthread->td_vnet
is not initialized.

Properly initialize curthread->td_vnet when initializing the Bluetooth stack.

This allows laptops such as the HP Elitebook 8460p laptop
to properly boot with VIMAGE kernels.
This commit is contained in:
Craig Rodrigues 2013-07-12 08:03:10 +00:00
parent 10c982958c
commit 71e6a9ce71
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=253255
1 changed files with 9 additions and 1 deletions
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10
sys/netgraph/bluetooth/drivers/ubt/ng_ubt.c
View File

@ -109,7 +109,9 @@
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/jail.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include "usbdevs.h"
#include <dev/usb/usb.h>
@ -123,6 +125,7 @@
#include <sys/mbuf.h>
#include <sys/taskqueue.h>
#include <net/vnet.h>
#include <netgraph/ng_message.h>
#include <netgraph/netgraph.h>
#include <netgraph/ng_parse.h>
@ -487,13 +490,14 @@ ubt_attach(device_t dev)
sc->sc_dev = dev;
sc->sc_debug = NG_UBT_WARN_LEVEL;
CURVNET_SET(TD_TO_VNET(curthread));
/*
* Create Netgraph node
*/
if (ng_make_node_common(&typestruct, &sc->sc_node) != 0) {
UBT_ALERT(sc, "could not create Netgraph node\n");
CURVNET_RESTORE();
return (ENXIO);
}
@ -501,10 +505,12 @@ ubt_attach(device_t dev)
if (ng_name_node(sc->sc_node, device_get_nameunit(dev)) != 0) {
UBT_ALERT(sc, "could not name Netgraph node\n");
NG_NODE_UNREF(sc->sc_node);
CURVNET_RESTORE();
return (ENXIO);
}
NG_NODE_SET_PRIVATE(sc->sc_node, sc);
NG_NODE_FORCE_WRITER(sc->sc_node);
CURVNET_RESTORE();
/*
* Initialize device softc structure
@ -631,8 +637,10 @@ ubt_detach(device_t dev)
/* Destroy Netgraph node */
if (node != NULL) {
sc->sc_node = NULL;
CURVNET_SET(node->nd_vnet);
NG_NODE_REALLY_DIE(node);
ng_rmnode_self(node);
CURVNET_RESTORE();
}
/* Make sure ubt_task in gone */