[Solved]how can i use netmanager to connect wifi?
hi,
My laptop is lenovo ideapad v360.
Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
kernel:3.1.5-2-ck #1 SMP PREEMPT Fri Dec 9 20:12:54 EST 2011 x86_64 Intel(R) Core(TM) i3 CPU M 390 @ 2.67GHz GenuineIntel GNU/Linux
When i use netmanager to enable wifi,it would be inactive.I wonder if anyone can help me?
NetworkManager DEBUG message:
NetworkManager[12329]: <debug> [1324536199.430916] [nm-manager.c:3385] manager_radio_user_toggled(): (WiFi): setting radio enabled by user
NetworkManager[12329]: <debug> [1324536199.431525] [nm-manager.c:1162] manager_update_radio_enabled(): (wlan0): setting radio enabled
NetworkManager[12329]: <debug> [1324536199.431686] [nm-device-wifi.c:3058] real_set_enabled(): (wlan0): device now enabled
NetworkManager[12329]: <info> (wlan0): bringing up device.
NetworkManager[12329]: <debug> [1324536199.434304] [nm-supplicant-manager.c:88] nm_supplicant_manager_iface_get(): (wlan0): creating new supplicant interface
NetworkManager[12329]: <debug> [1324536199.434634] [nm-supplicant-interface.c:692] interface_add(): (wlan0): adding interface to supplicant
NetworkManager[12329]: <debug> [1324536199.434970] [nm-device-wifi.c:3093] real_set_enabled(): (wlan0): enable waiting on supplicant state
NetworkManager[12329]: <info> WiFi hardware radio set enabled
NetworkManager[12329]: <debug> [1324536199.441904] [nm-netlink-monitor.c:163] link_msg_handler(): netlink link message: iface idx 3 flags 0x1003
NetworkManager[12329]: <debug> [1324536199.442122] [nm-udev-manager.c:690] handle_uevent(): UDEV event: action 'change' subsys 'rfkill' device 'rfkill0'
NetworkManager[12329]: <debug> [1324536199.442993] [nm-udev-manager.c:249] recheck_killswitches(): WiFi rfkill state now 'unblocked'
NetworkManager[12329]: <debug> [1324536199.443088] [nm-manager.c:1310] manager_rfkill_update_one_type(): WiFi hw-enabled 1 sw-enabled 1
NetworkManager[12329]: <info> WiFi now enabled by radio killswitch
NetworkManager[12329]: <debug> [1324536199.443228] [nm-manager.c:1162] manager_update_radio_enabled(): (wlan0): setting radio enabled
NetworkManager[12329]: <debug> [1324536199.443387] [nm-udev-manager.c:690] handle_uevent(): UDEV event: action 'change' subsys 'rfkill' device 'rfkill2'
NetworkManager[12329]: <debug> [1324536199.444230] [nm-udev-manager.c:690] handle_uevent(): UDEV event: action 'change' subsys 'rfkill' device 'rfkill3'
NetworkManager[12329]: <debug> [1324536199.466648] [nm-supplicant-interface.c:539] interface_add_done(): (wlan0): interface added to supplicant
NetworkManager[12329]: <info> (wlan0): supplicant interface state: starting -> ready
NetworkManager[12329]: <info> (wlan0): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
NetworkManager[12329]: <info> (wlan0): supplicant interface state: ready -> inactive
NetworkManager[12329]: <warn> Trying to remove a non-existant call id.
NetworkManager[12329]: <debug> [1324536199.609897] [nm-udev-manager.c:690] handle_uevent(): UDEV event: action 'change' subsys 'rfkill' device 'rfkill2'
NetworkManager[12329]: <debug> [1324536199.610362] [nm-udev-manager.c:249] recheck_killswitches(): WiFi rfkill state now 'soft-blocked'
NetworkManager[12329]: <debug> [1324536199.610422] [nm-manager.c:1310] manager_rfkill_update_one_type(): WiFi hw-enabled 1 sw-enabled 0
NetworkManager[12329]: <info> WiFi now disabled by radio killswitch
NetworkManager[12329]: <debug> [1324536199.610531] [nm-manager.c:1162] manager_update_radio_enabled(): (wlan0): setting radio disabled
NetworkManager[12329]: <debug> [1324536199.610569] [nm-device-wifi.c:3058] real_set_enabled(): (wlan0): device now disabled
NetworkManager[12329]: <info> (wlan0): device state change: disconnected -> unavailable (reason 'none') [30 20 0]
NetworkManager[12329]: <info> (wlan0): deactivating device (reason 'none') [0]
NetworkManager[12329]: <debug> [1324536199.610706] [nm-device-wifi.c:859] _set_hw_addr(): (wlan0): no MAC address change needed
NetworkManager[12329]: <debug> [1324536199.610918] [nm-system.c:1158] nm_system_iface_flush_routes(): (wlan0): flushing routes ifindex 3 family INET (2)
NetworkManager[12329]: <debug> [1324536199.611159] [nm-netlink-utils.c:317] dump_route(): route idx 1 family INET (2) addr 127.0.0.0/32
NetworkManager[12329]: <debug> [1324536199.611200] [nm-netlink-utils.c:317] dump_route(): route idx 1 family INET (2) addr 127.0.0.0/8
NetworkManager[12329]: <debug> [1324536199.611239] [nm-netlink-utils.c:317] dump_route(): route idx 1 family INET (2) addr 127.0.0.1/32
NetworkManager[12329]: <debug> [1324536199.611294] [nm-netlink-utils.c:317] dump_route(): route idx 1 family INET (2) addr 127.255.255.255/32
NetworkManager[12329]: <debug> [1324536199.611556] [nm-system.c:190] sync_addresses(): (wlan0): syncing addresses (family 2)
NetworkManager[12329]: <debug> [1324536199.612133] [nm-device-wifi.c:1235] real_is_available(): (wlan0): not available because not enabled
NetworkManager[12329]: <debug> [1324536199.612202] [nm-device.c:4163] nm_device_state_changed(): (wlan0): device not yet available for transition to DISCONNECTED
NetworkManager[12329]: <info> (wlan0): taking down device.
NetworkManager[12329]: <debug> [1324536199.643093] [nm-netlink-monitor.c:163] link_msg_handler(): netlink link message: iface idx 3 flags 0x1002
wpa_supplicant:
Initializing interface 'wlan0' conf 'N/A' driver 'nl80211,wext' ctrl_interface 'N/A' bridge 'N/A'
netlink: Operstate: linkmode=1, operstate=5
Own MAC address: ac:81:12:11:a3:90
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x466559 key_idx=0 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x466559 key_idx=1 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x466559 key_idx=2 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x466559 key_idx=3 set_tx=0 seq_len=0 key_len=0
RSN: flushing PMKID list in the driver
State: DISCONNECTED -> INACTIVE
WPS: UUID based on MAC address - hexdump(len=16): 65 80 55 d2 39 72 50 db a8 19 ab 81 79 b6 16 a0
EAPOL: SUPP_PAE entering state DISCONNECTED
EAPOL: Supplicant port status: Unauthorized
EAPOL: KEY_RX entering state NO_KEY_RECEIVE
EAPOL: SUPP_BE entering state INITIALIZE
EAP: EAP entering state DISABLED
EAPOL: Supplicant port status: Unauthorized
EAPOL: Supplicant port status: Unauthorized
dbus: Register interface object '/fi/w1/wpa_supplicant1/Interfaces/1'
Added interface wlan0
Scan requested (ret=0) - scan timeout 10 seconds
nl80211: Event message available
nl80211: Scan trigger
nl80211: Scan trigger failed: ret=-16 (Device or resource busy)
Removing interface wlan0
No keys have been configured - skip key clearing
State: INACTIVE -> DISCONNECTED
wpa_driver_nl80211_set_operstate: operstate 0->0 (DORMANT)
netlink: Operstate: linkmode=-1, operstate=5
EAPOL: External notification - portEnabled=0
EAPOL: Supplicant port status: Unauthorized
EAPOL: External notification - portValid=0
EAPOL: Supplicant port status: Unauthorized
No keys have been configured - skip key clearing
Cancelling scan request
Cancelling authentication timeout
dbus: Unregister interface object '/fi/w1/wpa_supplicant1/Interfaces/1'
netlink: Operstate: linkmode=0, operstate=6
Last edited by czheji (2011-12-22 08:11:25)
I got a solution:`rmmod acer_wmi` and adding it to blacklist solves the problem
https://bugzilla.redhat.com/show_bug.cgi?id=674353
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Hi
edit: you can probably skip all this guff and go straight to the bottom...In the end this is probably just a question of how to use a function that returns a %rowtype. Thanks.
Currently reading Feuerstein's tome, 5th ed. I've downloaded and run the file genaa.sp, which is a code generator. Specifically, you feed it a table name and it generates code (package header and package body) that will create a cache of the specified table's contents.
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HR@XE> @"C:\Documents and Settings\Jason\My Documents\Work\SQL\OPP5.WEB.CODE\OPP5.WEB.CODE\genaa.sp"
749 /
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create or replace package EMPLOYEES_cache is
function onerow ( EMPLOYEE_ID_in IN HR.EMPLOYEES.EMPLOYEE_ID%TYPE) return HR.EMPLOYEES%ROWTYPE;
function onerow_by_EMP_EMAIL_UK (EMAIL_in IN HR.EMPLOYEES.EMAIL%TYPE) return HR.EMPLOYEES%ROWTYPE;
procedure test;
end EMPLOYEES_cache;
create or replace package body EMPLOYEES_cache is
TYPE EMPLOYEES_aat IS TABLE OF HR.EMPLOYEES%ROWTYPE INDEX BY PLS_INTEGER;
EMP_EMP_ID_PK_aa EMPLOYEES_aat;
TYPE EMP_EMAIL_UK_aat IS TABLE OF HR.EMPLOYEES.EMPLOYEE_ID%TYPE INDEX BY HR.EMPLOYEES.EMAIL%TYPE;
EMP_EMAIL_UK_aa EMP_EMAIL_UK_aat;
function onerow ( EMPLOYEE_ID_in IN HR.EMPLOYEES.EMPLOYEE_ID%TYPE)
return HR.EMPLOYEES%ROWTYPE is
begin
return EMP_EMP_ID_PK_aa (EMPLOYEE_ID_in);
end;
function onerow_by_EMP_EMAIL_UK (EMAIL_in IN HR.EMPLOYEES.EMAIL%TYPE)
return HR.EMPLOYEES%ROWTYPE is
begin
return EMP_EMP_ID_PK_aa (EMP_EMAIL_UK_aa (EMAIL_in));
end;
procedure load_arrays is
begin
FOR rec IN (SELECT * FROM HR.EMPLOYEES)
LOOP
EMP_EMP_ID_PK_aa(rec.EMPLOYEE_ID) := rec;
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end loop;
END load_arrays;
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pky_rec HR.EMPLOYEES%ROWTYPE;
EMP_EMAIL_UK_aa_rec HR.EMPLOYEES%ROWTYPE;
begin
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pky_rec := onerow (rec.EMPLOYEE_ID);
EMP_EMAIL_UK_aa_rec := onerow_by_EMP_EMAIL_UK (rec.EMAIL);
if rec.EMPLOYEE_ID = EMP_EMAIL_UK_aa_rec.EMPLOYEE_ID then
dbms_output.put_line ('EMP_EMAIL_UK lookup OK');
else
dbms_output.put_line ('EMP_EMAIL_UK lookup NOT OK');
end if;
end loop;
end test;
BEGIN
load_arrays;
end EMPLOYEES_cache;
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HR@XE> @"C:\Documents and Settings\Jason\My Documents\Work\SQL\EMPLOYEES_CACHE.sql"
Package created.
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I have figured out that the section
BEGIN
load_arrays;
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With that in mind, I'm trying to call the onerow() function, but it's not working:
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select employees_cache.onerow(100) from dual
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HR@XE> select table(employees_cache.onerow(100)) from dual;
select table(employees_cache.onerow(100)) from dual
ERROR at line 1:
ORA-00936: missing expressionHe provides the code genaa.sp, and a very brief description of what it does, but doesn't tell us how to run the generated code!
Now, I have just done some googling, and it seems that what I am trying to do isn't possible. Apparently %ROWTYPE is PL/SQL, and not understood by SQL, so you can't call onerow() from sql. Correct?
So I try wrapping the call in an exec:
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BEGIN select employees_cache.onerow(100) from dual; END;
ERROR at line 1:
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PLS-00382: expression is of wrong type
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HR@XE> exec select table(employees_cache.onerow(100)) from dual;
BEGIN select table(employees_cache.onerow(100)) from dual; END;
ERROR at line 1:
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PL/SQL: ORA-00936: missing expression
ORA-06550: line 1, column 7:
PL/SQL: SQL Statement ignored
HR@XE> exec employees_cache.onerow(100)
BEGIN employees_cache.onerow(100); END;
ERROR at line 1:
ORA-06550: line 1, column 7:
PLS-00221: 'ONEROW' is not a procedure or is undefined
ORA-06550: line 1, column 7:
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Of course, now that I'm looking at it again, it seems that the way to go is indicated by the first error:
PLS-00428: an INTO clause is expected in this SELECT statement
So am I supposed to create a type of EMPLOYEES%ROWTYPE in a PL/SQL procedure, and the idea of this code, is that the first call to onerow() runs the initialiation code, which populates the cache, and all subsequent calls to onerow() (whether by my session or any other) will use the cache?
I've had a stab at this, but still, no joy:
create or replace procedure testcache is
emp employees%rowtype;
begin
select employees_cache.onerow(100) from dual into emp;
dbms_output.put_line('Emp id: ' || emp.employee_id);
end testcache;
show errors
HR@XE> @testcache.sql
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HR@XE>Have a feeling this should be really easy. Can anybody help?
Many thanks in advance.
Jason
Edited by: 942375 on 08-Feb-2013 11:45>
Ha, figured it out
>
Hopefully you also figured out that the example is just that: a technical example of how to use certain Oracle functionality. Unfortunately it is also an example of what you should NOT do in an actual application.
That code isn't scaleable, uses expensive PGA memory, has no limit on the amount of memory that might be used and, contrary to your belief will result in EVERY SESSION HAVING ITS OWN CACHE of exactly the same data if the session even touches that package.
Mr. Feuerstein is an expert in SQL and PL/SQL and his books cover virtually all of the functionality available. He also does an excellent job of providing examples to illustrate how that functionality can be combined and used. But the bulk of those examples are intended solely to illustrate the 'technical' aspects of the technology. They do not necessarily reflect best practices and they often do not address performance or other issues that need to be considered when actually using those techniques in a particular application. The examples show WHAT can be done but not necessarily WHEN or even IF a given technique should be used.
It is up to the reader to learn the advantages and disadvantages of each technicalogical piece and determine when and how to use them.
>
Now, I have just done some googling, and it seems that what I am trying to do isn't possible. Apparently %ROWTYPE is PL/SQL, and not understood by SQL, so you can't call onerow() from sql. Correct?
>
That is correct. To be used by SQL you would need to create SQL types using the CREATE TYPE syntax. Currently that syntax does not support anything similar to %ROWTYPE.
>
So am I supposed to create a type of EMPLOYEES%ROWTYPE in a PL/SQL procedure, and the idea of this code, is that the first call to onerow() runs the initialiation code, which populates the cache, and all subsequent calls to onerow() (whether by my session or any other) will use the cache?
>
NO! That is a common misconception. Each session has its own set of package variables. Any session that touches that package will cause the entire EMPLOYEES table to be queried and stored in a new associative array specifically for that session.
That duplicates the cache for each session using the package. So while there might be some marginal benefit for a single session to cache data like that the benefit usually disappears if multiple sessions are involved.
The main use case that I am aware of where such caching has benefit is during ETL processing of staged data when the processing of each record is too complex to be done in SQL and the records need to be BULK loaded and the data manipulated in a loop. Then using an associative array as a lookup table to quickly get a small amount of data can be effective. And if the ETL procedure is being processed in parallel (meaning different sessions) then for a small lookup array the additional memory use is tolerable.
Mitigating against that is the fact that:
1. Such frequently used data that you might store in the array is likely to be cached by Oracle in the buffer cache anyway
2. Newer versions of Oracle now have more than one cache
3. The SQL query needed to get the data from the table will use a bind variable that eliminates repeated hard parsing.
4. The cursor and the buffer caches ARE SHARED by multiple sessions globally.
So the short story is that there would rarely be a use case where ARRAYs like that would be preferred over accessing the data from the table. -
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Hi all Could someone with IE5.2 for Mac and IE 6 / FF please have a look at this page http://wharfstudio.thecolourfactor.co.uk/wharf.html .... I'm told IE 5.2 Mac messes things up quite a bit. Any ideas on how to sort it? All layout is done using CSS
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Help with multiple nat translation on a Cisco Nexus 3548
Hi All, I need a little help with a NAT configuration on a cisco Nexus 3548 version 6.0(2)A4(3). What currently have is as follows: internal network: 192.168.4.0/24 nexus router (routerA): LAN Side: vlan104 interface 192.168.4.201/24 WAN Side: Et