Re: [ovs-discuss] can't remove openvswitch.ko with "modprobe -r openvswitch "

[Justin Pettit]

> On Oct 11, 2016, at 1:15 AM, xiongzhiwei  wrote:
> 
> Thanks flaviof, As your email thread, I can't use the option 
> "force-reload-kmod" to uninstall the openvswitch.ko.
> The error was always shown " modprobe: FATAL: Module openvswitch is in use."
> 
> My operation is as below:
> 1. insmod openvswitch.ko
>   modprobe openvswitch
> 2. start the ovsdb-server:
>   ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock 
> --remote=db:Open_vSwitch,Open_vSwitch,manager_options 
> --private-key=db:Open_vSwitch,SSL,private_key 
> --certificate=db:Open_vSwitch,SSL,certificate 
> --bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert --pidfile --detach
> 3. start ovs-vswitchd
>   ovs-vswitchd --pidfile --detach
> 4. add a ovs bridge
>   ovs-vsctl add-br br0
> 5. remove this bridge
>   ovs-vsctl del-br br0
> 
> until this step3, I can successful uninstall openvswitch.ko and no error 
> shown with command: modprobe -r openvswitch
> but, step 5, the error " modprobe: FATAL: Module openvswitch is in use." is 
> shown when I want to remove the kernel mode of openvswitch, in spite of 
> stopping ovs with "pkill ovs".
> 
> I have found the virtual interface named "ovs-system" with command " ifconfig 
> -a", I guess it is the key of this issue. So what can I do to remove the 
> "ovs-system"?

Killing ovs-vswitchd won't delete the bridges in the kernel datapath.  Are you 
trying to remove the kernel module after all the bridges have been removed?  
What do you see when you run "ovs-dpctl show" when you can't remove the kernel 
module?

--Justin


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Re: [ovs-discuss] can't remove openvswitch.ko with "modprobe -r openvswitch "

[Flavio Fernandes]

> On Oct 10, 2016, at 2:05 AM, Justin Pettit  wrote:
> 
> You might check the log files.  You might also check "lsmod" and see if 
> there's any dependency on it.
> 

Also, see if this is related to a known issue that was discussed here [1].
I never got look at the code that Jesse suggested [2]; sorry!

-- flaviof

[1]: http://openvswitch.org/pipermail/discuss/2016-September/thread.html#22751
[2]: http://openvswitch.org/pipermail/discuss/2016-September/022762.html


> --Justin
> 
> 
>> On Oct 9, 2016, at 2:10 AM, xiongzhiwei  wrote:
>> 
>> Hi all, 
>> I have updated my ovs from 2.3.2 to 2.5, I want to remove the openvswitch.ko 
>> with “modprobe –r openvswitch”, but it doesn’t work.
>> For the ovs 2.3.2, there is no this problem.
>> 
>> Who can tell me how to uninstall the ovs?
>> 
>> Thanks and regards
>> 
>> Zhiwei Xiong
>> 
>> 
>> 
>> 熊志伟 Xiong Zhiwei
>> Mob：(+86) 186-1840-0861
>> E-mail：xiongzhi...@baicells.com
>> 北京佰才邦技术有限公司Baicells Technologies Co. Ltd.
>> 
>> 
>> 本邮件及其附件含有北京佰才邦技术有限公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！
>> This e-mail and its attachments contain confidential information from 
>> Baicells Technologies Co. Ltd., which is intended only for the person or 
>> entity whose address is listed above. Any use of the information contained 
>> herein in any way (including, but not limited to, total or partial 
>> disclosure, reproduction, or dissemination) by persons other than the 
>> intended recipient(s) is prohibited. If you receive this e-mail in error, 
>> please notify the sender by phone or email immediately and delete it!
>> 
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> 
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Re: [ovs-discuss] can't remove openvswitch.ko with "modprobe -r openvswitch "

[Justin Pettit]

You might check the log files.  You might also check "lsmod" and see if there's 
any dependency on it.

--Justin


> On Oct 9, 2016, at 2:10 AM, xiongzhiwei  wrote:
> 
> Hi all, 
> I have updated my ovs from 2.3.2 to 2.5, I want to remove the openvswitch.ko 
> with “modprobe –r openvswitch”, but it doesn’t work.
> For the ovs 2.3.2, there is no this problem.
>  
> Who can tell me how to uninstall the ovs?
>  
> Thanks and regards
>  
> Zhiwei Xiong
>  
>  
> 
> 熊志伟 Xiong Zhiwei
> Mob：(+86) 186-1840-0861
> E-mail：xiongzhi...@baicells.com
> 北京佰才邦技术有限公司Baicells Technologies Co. Ltd.
>  
> 
> 本邮件及其附件含有北京佰才邦技术有限公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！
> This e-mail and its attachments contain confidential information from 
> Baicells Technologies Co. Ltd., which is intended only for the person or 
> entity whose address is listed above. Any use of the information contained 
> herein in any way (including, but not limited to, total or partial 
> disclosure, reproduction, or dissemination) by persons other than the 
> intended recipient(s) is prohibited. If you receive this e-mail in error, 
> please notify the sender by phone or email immediately and delete it!
>  
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> discuss@openvswitch.org
> http://openvswitch.org/mailman/listinfo/discuss

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