Date: Tue, 2 Jul 2024 22:01:20 +0200 From: Mario Marietto <marietto2008@gmail.com> To: Denis Kirjanov <kirjanov@gmail.com> Cc: FreeBSD virtualization <freebsd-virtualization@freebsd.org> Subject: Re: How to unload the vmm.ko module while FreeBSD is running... Message-ID: <CA%2B1FSii7yaCN2Dm8HOtgHhzA1X1GUMy5iihvZ9RhSs%2BhKnTPHw@mail.gmail.com> In-Reply-To: <CAHj3AVnSAYFRV9zrtV0XLJxd9wH3j2HX4LvZmF6zkrKXECPHgw@mail.gmail.com> References: <CA%2B1FSijyH2EmUx95q8uudmYw-weAY4p480TKtancaRF3zdbvqA@mail.gmail.com> <CAHj3AVnSAYFRV9zrtV0XLJxd9wH3j2HX4LvZmF6zkrKXECPHgw@mail.gmail.com>
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[-- Attachment #1 --] ok. I've been able to unload vmm : [root@marietto /dev/vmm]==> bhyvectl --vm=vm0:12 --destroy [root@marietto /dev/vmm]==> cd /dev/vmm cd: no such file or directory: /dev/vmm [root@marietto /dev/vmm]==> kldunload vmm OK. but now I would like to load it again : [root@marietto /dev/vmm]==> kldload vmm kldload: can't load vmm: module already loaded or in kernel [root@marietto /dev/vmm]==> kldstat | grep vmm [root@marietto /dev/vmm]==> ls /dev/vmm ls: /dev/vmm: No such file or directory On Tue, Jul 2, 2024 at 9:35 PM Denis Kirjanov <kirjanov@gmail.com> wrote: > > > вторник, 2 июля 2024 г. пользователь Mario Marietto < > marietto2008@gmail.com> написал: > >> Hello. >> >> I'm trying to unload the vmm kernel module,but it fails : >> >> [root@marietto /bhyve]==> kldunload -fv vmm >> Unloading vmm.ko, id=13 >> kldunload: can't unload file: Device busy >> >> I don't understand why it fails,since I don't have any bhyve vm currently >> running : >> >> [root@marietto /bhyve]==> ps ax | grep bhyve >> 6645 4 RL+ 0:00,00 grep bhyve (ggrep) >> >> and yes,the vmm module is loaded in memory : >> >> root@marietto /bhyve]==> kldstat | grep vmm >> 13 1 0xffffffff827ac000 37c9e8 vmm.ko >> >> how has it been loaded inside the memory ? Using /boot/loader.conf : >> >> vmm_load="YES" >> >> and it is located inside the directory /boot/kernel and it is called >> vmm.ko >> > > bhyvectl --destroy --vm=<name> > > > > >> >> Is there a way to unload it and reload it while FreeBSD is >> running,without rebooting the system ? thanks. >> >> -- >> Mario. >> > > > -- > Regards / Mit besten Grüßen, > Denis > > -- Mario. [-- Attachment #2 --] <div dir="ltr"><div>ok. I've been able to unload vmm :</div><div><br></div><div>[root@marietto /dev/vmm]==> bhyvectl --vm=vm0:12 --destroy</div><div><br></div><div>[root@marietto /dev/vmm]==> cd /dev/vmm </div>cd: no such file or directory: /dev/vmm<br><div><br></div><div>[root@marietto /dev/vmm]==> kldunload vmm </div><div>OK.</div><div><br></div><div>but now I would like to load it again :<br></div><div><br></div><div>[root@marietto /dev/vmm]==> kldload vmm </div><div>kldload: can't load vmm: module already loaded or in kernel</div><div><br></div><div>[root@marietto /dev/vmm]==> kldstat | grep vmm</div><div><br></div><div>[root@marietto /dev/vmm]==> ls /dev/vmm <br>ls: /dev/vmm: No such file or directory</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jul 2, 2024 at 9:35 PM Denis Kirjanov <<a href="mailto:kirjanov@gmail.com">kirjanov@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>вторник, 2 июля 2024 г. пользователь Mario Marietto <<a href="mailto:marietto2008@gmail.com" target="_blank">marietto2008@gmail.com</a>> написал:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div>Hello.</div><div><br></div><div>I'm trying to unload the vmm kernel module,but it fails :<br></div><div><br></div><div>[root@marietto /bhyve]==> kldunload -fv vmm</div>Unloading vmm.ko, id=13<br><div>kldunload: can't unload file: Device busy</div><div><br></div><div>I don't understand why it fails,since I don't have any bhyve vm currently running :<br></div><div><br></div><div>[root@marietto /bhyve]==> ps ax | grep bhyve<br>6645 4 RL+ 0:00,00 grep bhyve (ggrep)</div><div><br></div><div>and yes,the vmm module is loaded in memory :</div><div><br></div><div>root@marietto /bhyve]==> kldstat | grep vmm<br>13 1 0xffffffff827ac000 37c9e8 vmm.ko</div><br></div><div>how has it been loaded inside the memory ? Using /boot/loader.conf :<br></div><div><br></div><div>vmm_load="YES"</div><div><br></div><div>and it is located inside the directory /boot/kernel and it is called vmm.ko</div></div></blockquote><div><br></div><div><pre dir="ltr" style="box-sizing:border-box;font-family:Monaco,Menlo,Consolas,"Roboto Mono","Andale Mono","Ubuntu Mono",monospace;font-size:13px;margin-top:0px;margin-bottom:0px;padding:10px;line-height:1.4;overflow:auto;direction:ltr;color:rgb(20,20,20)"><code style="box-sizing:border-box;font-family:inherit;font-size:1em">bhyvectl --destroy --vm=<name></code></pre><pre dir="ltr" style="box-sizing:border-box;font-family:Monaco,Menlo,Consolas,"Roboto Mono","Andale Mono","Ubuntu Mono",monospace;font-size:13px;margin-top:0px;margin-bottom:0px;padding:10px;line-height:1.4;overflow:auto;direction:ltr;color:rgb(20,20,20)"><code style="box-sizing:border-box;font-family:inherit;font-size:1em"><br></code></pre></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><br></div><div>Is there a way to unload it and reload it while FreeBSD is running,without rebooting the system ? thanks.</div><div><br></div><div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Mario.<br></div></div></div> </blockquote><br><br>-- <br>Regards / Mit besten Grüßen,<br>Denis<br><br> </blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Mario.<br></div>
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