Re: Segment fault when using wireless (adhoc mode)
- From: 陈杰 <chenj lemote com>
- To: Dan Williams <dcbw redhat com>
- Cc: networkmanager-list gnome org
- Subject: Re: Segment fault when using wireless (adhoc mode)
- Date: Thu, 5 Mar 2009 15:10:31 +0800
Hi Dan,
I've tried NM-0.7.1-rc3, and got a log about this problem (see attachment: adhoc_crash.log), maybe it will be helpful.
BTW, this adhoc_crash.log contains some log entries printed by the code in the attachment debug.patch.
NetworkManager: <info> starting...
/sbin/ifup: interface lo already configured
NetworkManager: <info> (eth0): new Ethernet device (driver: '8139too')
NetworkManager: <info> (eth0): exported as /org/freedesktop/Hal/devices/net_00_1e_68_a7_37_05
NetworkManager: <info> (wlan0): driver supports SSID scans (scan_capa 0x01).
NetworkManager: <info> (wlan0): new 802.11 WiFi device (driver: 'rtl8187')
NetworkManager: <info> (wlan0): exported as /org/freedesktop/Hal/devices/net_00_17_c4_4d_c8_fd
NetworkManager: <WARN> udevadm_get_modem_capabilities(): could not run udevadm to get modem capabilities for '/sys/class/tty/ttyS0': Failed to execute child process "/sbin/udevadm" (No such file or directory)
NetworkManager: <info> Trying to start the system settings daemon...
NetworkManager: <info> (eth0): device state change: 1 -> 2
NetworkManager: <info> (eth0): bringing up device.
NetworkManager: <info> (eth0): preparing device.
NetworkManager: <info> (eth0): deactivating device (reason: 2).
NetworkManager: <debug> [1236221723.019163] nm_device_set_ip4_config(): Got passed in new NMIP4Config, addr: 0x0
NetworkManager: <debug> [1236221723.019674] nm_device_set_ip4_config(): Got old NMIP4Config from NMDevice > private > "ip4_config", addr: 0x0
NetworkManager: <info> (wlan0): device state change: 1 -> 2
NetworkManager: <info> (wlan0): bringing up device.
NetworkManager: <info> (wlan0): preparing device.
NetworkManager: <info> (wlan0): deactivating device (reason: 2).
NetworkManager: <debug> [1236221727.715364] nm_device_set_ip4_config(): Got passed in new NMIP4Config, addr: 0x0
NetworkManager: <debug> [1236221727.718092] nm_device_set_ip4_config(): Got old NMIP4Config from NMDevice > private > "ip4_config", addr: 0x0
NetworkManager: <info> (wlan0): device state change: 2 -> 3
NetworkManager: <info> (wlan0): supplicant interface state: starting -> ready
NetworkManager: <info> Activation (wlan0) starting connection 'Wireless connection 3'
NetworkManager: <info> (wlan0): device state change: 3 -> 4
NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
NetworkManager: <info> (wlan0): device state change: 4 -> 5
NetworkManager: <info> Activation (wlan0/wireless): connection 'Wireless connection 3' requires no security. No secrets needed.
NetworkManager: <info> Config: added 'ssid' value 'qicq'
NetworkManager: <info> Config: added 'mode' value '1'
NetworkManager: <info> Config: added 'key_mgmt' value 'NONE'
NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
NetworkManager: <info> Config: set interface ap_scan to 2
NetworkManager: <info> (wlan0): supplicant connection state: scanning -> disconnected
NetworkManager: <info> (wlan0): supplicant connection state: disconnected -> scanning
NetworkManager: <info> (wlan0): supplicant connection state: scanning -> associating
NetworkManager: <info> (wlan0): supplicant connection state: associating -> associated
NetworkManager: <info> (wlan0): supplicant connection state: associated -> completed
NetworkManager: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful. Connected to wireless network 'qicq'.
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
NetworkManager: <info> (wlan0): supplicant connection state: completed -> associated
NetworkManager: <info> (wlan0): supplicant connection state: associated -> completed
NetworkManager: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful. Connected to wireless network 'qicq'.
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
NetworkManager: <info> (wlan0): supplicant connection state: completed -> associated
NetworkManager: <info> (wlan0): supplicant connection state: associated -> completed
NetworkManager: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful. Connected to wireless network 'qicq'.
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
NetworkManager: <info> (wlan0): device state change: 5 -> 7
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) started...
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) complete.
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) started...
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) complete.
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) started...
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) scheduled...
NetworkManager: <info> Activation (wlan0) Stage 4 of 5 (IP Configure Get) complete.
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) started...
NetworkManager: <debug> [1236221729.688814] nm_device_set_ip4_config(): Got passed in new NMIP4Config, addr: 0x4a2210, vaild
NetworkManager: <debug> [1236221729.689415] nm_device_set_ip4_config(): Got old NMIP4Config from NMDevice > private > "ip4_config", addr: 0x0
NetworkManager: <debug> [1236221729.690135] nm_device_set_ip4_config(): add a weak ref to NMIP4Config(addr: 0x4a2210)
NetworkManager: <debug> [1236221729.690803] nm_device_set_ip4_config(): ref new NMIP4Config(addr: 0x4a2210), refcnt: 2
NetworkManager: <debug> [1236221730.700113] nm_device_set_ip4_config(): called nm_name_manager_add_ip4_config, NMIP4Config(addr: 0x4a2210) ref_cnt: 2 -> 3
NetworkManager: <debug> [1236221730.701805] nm_device_activate_stage5_ip_config_commit(): succeed to set ip4 configuration
NetworkManager: <info> (wlan0): device state change: 7 -> 8
NetworkManager: <info> Activation (wlan0) successful, device activated.
NetworkManager: <debug> [1236221730.756309] nm_device_activate_stage5_ip_config_commit(): unref ip4_config(addr: 0x4a2210), vaild
NetworkManager: <debug> [1236221730.759208] nm_device_activate_stage5_ip_config_commit(): after unref ip4_config(addr: 0x4a2210), refcnt: 3 -> 2
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) complete.
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) started...
NetworkManager: <debug> [1236221730.765545] nm_device_set_ip4_config(): Got passed in new NMIP4Config, addr: 0x4a2210, vaild
NetworkManager: <debug> [1236221730.767713] nm_device_set_ip4_config(): Got old NMIP4Config from NMDevice > private > "ip4_config", addr: 0x4a2210, vaild
NetworkManager: <debug> [1236221730.768184] nm_device_set_ip4_config(): NMIP4Config typeid 4892656, old_config typeid 4892656 (class 0x4abff8), new_config typeid 4892656 (class 0x4abff8)
NetworkManager: <debug> [1236221730.768672] nm_device_set_ip4_config(): call nm_ip4_config_diff: result 0x0
NetworkManager: <debug> [1236221730.769044] nm_device_activate_stage5_ip_config_commit(): succeed to set ip4 configuration
NetworkManager: <debug> [1236221730.769572] nm_device_activate_stage5_ip_config_commit(): unref ip4_config(addr: 0x4a2210), vaild
NetworkManager: <debug> [1236221730.769992] nm_device_activate_stage5_ip_config_commit(): after unref ip4_config(addr: 0x4a2210), refcnt: 2 -> 1
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) complete.
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) started...
NetworkManager: <debug> [1236221730.792455] nm_device_set_ip4_config(): Got passed in new NMIP4Config, addr: 0x4a2210, vaild
NetworkManager: <debug> [1236221730.793093] nm_device_set_ip4_config(): Got old NMIP4Config from NMDevice > private > "ip4_config", addr: 0x4a2210, vaild
NetworkManager: <debug> [1236221730.793732] nm_device_set_ip4_config(): NMIP4Config typeid 4892656, old_config typeid 4892656 (class 0x4abff8), new_config typeid 4892656 (class 0x4abff8)
NetworkManager: <debug> [1236221730.794308] nm_device_set_ip4_config(): call nm_ip4_config_diff: result 0x0
NetworkManager: <debug> [1236221730.794959] nm_device_activate_stage5_ip_config_commit(): succeed to set ip4 configuration
NetworkManager: <debug> [1236221730.795533] nm_device_activate_stage5_ip_config_commit(): unref ip4_config(addr: 0x4a2210), vaild
NetworkManager: <debug> [1236221730.796142] notify_destroy_nm_ip4_config(): NMIP4Config 0x4a2210 will be destroy, class(0x4abff8) typeid 4892656 (real typeid 4892656)
NetworkManager: <debug> [1236221730.796877] nm_device_activate_stage5_ip_config_commit(): after unref ip4_config(addr: 0x4a2210), refcnt: 1 -> 0
NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) complete.
NetworkManager: <info> (wlan0): supplicant connection state: completed -> associated
NetworkManager: <info> (wlan0): supplicant connection state: associated -> completed
NetworkManager: nm_ip4_config_get_dbus_path: assertion `NM_IS_IP4_CONFIG (config)' failed
NetworkManager: <WARN> nm_signal_handler(): Caught signal 11. Generating backtrace...
NetworkManager: ******************* START **********************************
NetworkManager: [Thread debugging using libthread_db enabled]
NetworkManager: [New Thread 0x2aad0cd0 (LWP 4256)]
NetworkManager: 0x2ae32a0c in waitpid () from /lib/libpthread.so.0
NetworkManager: #0 0x2ae32a0c in waitpid () from /lib/libpthread.so.0
NetworkManager: #1 0x00437654 in nm_logging_backtrace () at nm-logging.c:70
NetworkManager: #2 0x0042f944 in nm_signal_handler (signo=<value optimized out>)
NetworkManager: at NetworkManager.c:162
NetworkManager: #3 <signal handler called>
NetworkManager: #4 0x2b0d4d28 in strlen () from /lib/libc.so.6
NetworkManager: #5 0x2aeb5cec in ?? () from /usr/lib/libdbus-1.so.3
warning: GDB can't find the start of the function at 0x2aeb5ceb.
NetworkManager:
NetworkManager: GDB is unable to find the start of the function at 0x2aeb5ceb
NetworkManager: and thus can't determine the size of that function's stack frame.
NetworkManager: This means that GDB may be unable to access that stack frame, or
NetworkManager: the frames below it.
NetworkManager: ed by an invalid program counter or
NetworkManager: stack pointer.
NetworkManager: However, if you think GDB should simply search farther back
NetworkManager: from 0x2aeb5ceb for code which looks like the beginning of a
NetworkManager: function, you can increase the range of the search using the `set
NetworkManager: ce-post' command.
NetworkManager: Backtrace stopped: previous frame inner to this frame (corrupt stack?)
NetworkManager:
NetworkManager: Thread 1 (Thread 0x2aad0cd0 (LWP 4256)):
NetworkManager: #0 0x2ae32a0c in waitpid () from /lib/libpthread.so.0
NetworkManager: No symbol table info available.
NetworkManager: #1 0x00437654 in nm_logging_backtrace () at nm-logging.c:70
NetworkManager: st_ino = 305046,
NetworkManager: st_rdev = 0,
NetworkManager: st_pad3 = 0, st_atim = {
NetworkManager: tv_sec = 1236221533,
NetworkManager: tv_nsec = 0},
NetworkManager: 0 <repeats 14 times>}}
NetworkManager: #2 0x0042f944 in nm_signal_handler (signo=<value optimized out>)
NetworkManager: at NetworkManager.c:162
NetworkManager:
NetworkManager:
NetworkManager: #3 <signal handler called>
NetworkManager: No symbol table info available.
NetworkManager: #4 0x2b0d4d28 in strlen () from /lib/libc.so.6
NetworkManager: No symbol table info available.
NetworkManager: #5 0x2aeb5cec in ?? () from /usr/lib/libdbus-1.so.3
NetworkManager: No symbol table info available.
warning: GDB can't find the start of the function at 0x2aeb5ceb.
NetworkManager: Backtrace stopped: previous frame inner to this frame (corrupt stack?)
NetworkManager: #0 0x2ae32a0c in waitpid () from /lib/libpthread.so.0
NetworkManager: The program is running. Quit anyway (and detach it)? (y or n) [answered Y; input not from terminal]
NetworkManager: ******************* END **********************************
diff --git a/src/nm-device.c b/src/nm-device.c
index bb24b8b..53171a0 100644
--- a/src/nm-device.c
+++ b/src/nm-device.c
@@ -123,6 +123,8 @@ static gboolean nm_device_is_up (NMDevice *self);
static gboolean nm_device_set_ip4_config (NMDevice *dev, NMIP4Config *config, NMDeviceStateReason *reason);
+static void notify_destroy_nm_ip4_config (gpointer data, GObject *gobj);
+
static void
device_interface_init (NMDeviceInterface *device_interface_class)
{
@@ -1397,6 +1399,7 @@ nm_device_activate_stage5_ip_config_commit (gpointer user_data)
NMConnection *connection;
NMSettingIP4Config *s_ip4;
NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
+ gint old_cnt, new_cnt;
ip4_config = g_object_get_data (G_OBJECT (nm_device_get_act_request (self)),
NM_ACT_REQUEST_IP4_CONFIG);
@@ -1407,14 +1410,15 @@ nm_device_activate_stage5_ip_config_commit (gpointer user_data)
priv->act_source_id = 0;
iface = nm_device_get_iface (self);
- nm_info ("Activation (%s) Stage 5 of 5 (IP Configure Commit) started...",
- iface);
-
+ nm_info ("Activation (%s) Stage 5 of 5 (IP Configure Commit) started...", iface);
+
if (!nm_device_set_ip4_config (self, ip4_config, &reason)) {
nm_device_state_changed (self, NM_DEVICE_STATE_FAILED, reason);
goto out;
}
+ nm_debug ("succeed to set ip4 configuration");
+
connection = nm_act_request_get_connection (nm_device_get_act_request (self));
s_ip4 = (NMSettingIP4Config *) nm_connection_get_setting (connection, NM_TYPE_SETTING_IP4_CONFIG);
if (s_ip4)
@@ -1431,11 +1435,19 @@ nm_device_activate_stage5_ip_config_commit (gpointer user_data)
nm_device_state_changed (self, NM_DEVICE_STATE_ACTIVATED, NM_DEVICE_STATE_REASON_NONE);
out:
- nm_info ("Activation (%s) Stage 5 of 5 (IP Configure Commit) complete.",
- iface);
-
/* Balance IP4Config creation; device takes ownership in set_ip4_config() */
+ old_cnt = ((GObject *) ip4_config)->ref_count;
+
+ nm_debug ("unref ip4_config(addr: 0x%x)%s", (unsigned int) ip4_config, (!ip4_config) ? "" : NM_IS_IP4_CONFIG (ip4_config) ? ", vaild" : ", invaild");
g_object_unref (ip4_config);
+
+ new_cnt = ((GObject *) ip4_config)->ref_count;
+
+ nm_debug ("after unref ip4_config(addr: 0x%x), refcnt: %d -> %d",
+ (unsigned int) ip4_config, old_cnt, new_cnt);
+
+ nm_info ("Activation (%s) Stage 5 of 5 (IP Configure Commit) complete.",
+ iface);
return FALSE;
}
@@ -1923,7 +1935,15 @@ nm_device_get_ip4_config (NMDevice *self)
return NM_DEVICE_GET_PRIVATE (self)->ip4_config;
}
-
+static void notify_destroy_nm_ip4_config (gpointer data, GObject *gobj)
+{
+ GTypeClass *cls = ((GTypeInstance *) gobj)->g_class;
+ nm_debug ("NMIP4Config 0x%x will be destroy, class(0x%x) typeid %d (real typeid %d)",
+ (unsigned int) gobj,
+ (unsigned int) cls,
+ (unsigned int) cls->g_type,
+ NM_TYPE_IP4_CONFIG);
+}
static gboolean
nm_device_set_ip4_config (NMDevice *self,
@@ -1936,18 +1956,31 @@ nm_device_set_ip4_config (NMDevice *self,
gboolean success = TRUE;
NMIP4ConfigCompareFlags diff = NM_IP4_COMPARE_FLAG_ALL;
NMNamedManager *named_mgr;
+ int old_cnt, new_cnt;
g_return_val_if_fail (NM_IS_DEVICE (self), FALSE);
g_return_val_if_fail (reason != NULL, FALSE);
+
+ nm_debug ("Got passed in new NMIP4Config, addr: 0x%x%s", (unsigned int) new_config, (!new_config) ? "" : NM_IS_IP4_CONFIG (new_config) ? ", vaild" : ", invaild");
priv = NM_DEVICE_GET_PRIVATE (self);
ip_iface = nm_device_get_ip_iface (self);
old_config = priv->ip4_config;
+ nm_debug ("Got old NMIP4Config from NMDevice > private > \"ip4_config\", addr: 0x%x%s", (unsigned int) old_config, (!old_config) ? "" : NM_IS_IP4_CONFIG (old_config) ? ", vaild" : ", invaild");
+
- if (new_config && old_config)
- diff = nm_ip4_config_diff (new_config, old_config);
+ if (new_config && old_config) {
+ GTypeClass *cls_old, *cls_new;
+
+ cls_old = ((GTypeInstance *) old_config)->g_class;
+ cls_new = ((GTypeInstance *) new_config)->g_class;
+ nm_debug ("NMIP4Config typeid %d, old_config typeid %d (class 0x%x), new_config typeid %d (class 0x%x)", NM_TYPE_IP4_CONFIG, cls_old ? (unsigned int) cls_old->g_type : 0, (unsigned int) cls_old, cls_new ? (unsigned int) cls_new->g_type : 0, (unsigned int) cls_new);
+ diff = nm_ip4_config_diff (new_config, old_config);
+ nm_debug ("call nm_ip4_config_diff: result 0x%x", diff);
+ }
+
/* No actual change, do nothing */
if (diff == NM_IP4_COMPARE_FLAG_NONE)
return TRUE;
@@ -1955,6 +1988,7 @@ nm_device_set_ip4_config (NMDevice *self,
named_mgr = nm_named_manager_get ();
if (old_config) {
/* Remove any previous IP4 Config from the named manager */
+ nm_debug ("remove old NMIP4Config(addr: 0x%x) from the named manager", (unsigned int) old_config);
nm_named_manager_remove_ip4_config (named_mgr, ip_iface, old_config);
g_object_unref (old_config);
priv->ip4_config = NULL;
@@ -1962,16 +1996,26 @@ nm_device_set_ip4_config (NMDevice *self,
if (new_config) {
priv->ip4_config = g_object_ref (new_config);
-
+ nm_debug ("add a weak ref to NMIP4Config(addr: 0x%x)", (unsigned int) new_config);
+
+ g_object_weak_ref (G_OBJECT (new_config), notify_destroy_nm_ip4_config, NULL);
+ nm_debug ("ref new NMIP4Config(addr: 0x%x), refcnt: %d",
+ (unsigned int) new_config,
+ ((GObject *) new_config)->ref_count);
+
success = nm_system_apply_ip4_config (ip_iface, new_config, nm_device_get_priority (self), diff);
if (success) {
/* Export over D-Bus */
if (!nm_ip4_config_get_dbus_path (new_config))
nm_ip4_config_export (new_config);
-
+
/* Add the DNS information to the named manager */
+ old_cnt = ((GObject *) new_config)->ref_count;
nm_named_manager_add_ip4_config (named_mgr, ip_iface, new_config, NM_NAMED_IP_CONFIG_TYPE_DEFAULT);
-
+ new_cnt = ((GObject *) new_config)->ref_count;
+
+ nm_debug ("called nm_name_manager_add_ip4_config, NMIP4Config(addr: 0x%x) ref_cnt: %d -> %d", (unsigned int) new_config, old_cnt, new_cnt);
+
nm_device_update_ip4_address (self);
}
}
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