Hi Sai
I will cross check in my lab and see if I can reproduce the issue Regards Kiran From: sai <sai.kr...@gmail.com> Date: Wednesday, 16 July 2025 at 8:51 AM To: users@cloudstack.apache.org <users@cloudstack.apache.org> Subject: Re: Regarding PCI slots Hi, Any pointers on this please. Thanks, Sai On Tue, Jul 15, 2025, 10:43 AM sai <sai.kr...@gmail.com> wrote: > Hi kiran, > > I have collected the agent logs, the issue is happening when we add more > than one or two volumes/networks for running vm with uefi enabled. > > WARN [kvm.storage.KVMStorageProcessor] (agentRequest-Handler-3:null) > (logid:f74cb22b) Failed to attach device to i-1-2976-VM: internal error: No > more available PCI slots > DEBUG [kvm.storage.KVMStorageProcessor] (agentRequest-Handler-3:null) > (logid:f74cb22b) Failed to attach volume: > 8b3ee875-81ac-48b7-8f6f-b557f9e790e4, due to > org.libvirt.LibvirtException: internal error: No more available PCI slots > at org.libvirt.ErrorHandler.processError(Unknown Source) > at org.libvirt.ErrorHandler.processError(Unknown Source) > at org.libvirt.Domain.attachDevice(Unknown Source) > at > com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.attachOrDetachDevice(KVMStorageProcessor.java:1248) > at > com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.attachOrDetachDisk(KVMStorageProcessor.java:1522) > at > com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.attachOrDetachDisk(KVMStorageProcessor.java:1350) > at > com.cloud.hypervisor.kvm.storage.KVMStorageProcessor.attachVolume(KVMStorageProcessor.java:1553) > at > com.cloud.storage.resource.StorageSubsystemCommandHandlerBase.execute(StorageSubsystemCommandHandlerBase.java:168) > at > com.cloud.storage.resource.StorageSubsystemCommandHandlerBase.handleStorageCommands(StorageSubsystemCommandHandlerBase.java:70) > > Can you please let me know is this libvirt issue? > > Thanks, > Sai > > On Tue, Jul 8, 2025, 10:30 PM sai <sai.kr...@gmail.com> wrote: > >> Hi kiran, >> >> Yeah I just got no more available pci slot exception in agent logs.I will >> try to collect the logs and upload. >> >> Thanks & Regards, >> Sai >> >> On Tue, Jul 8, 2025, 8:28 PM Kiran Chavala <kiran.chav...@shapeblue.com> >> wrote: >> >>> >>> >>> Hi Sai >>> >>> Did you find any exception in the kvm agent logs? >>> >>> Could you please log a issue upstream with the logs(management server >>> and kvm agent logs) to troubleshoot further >>> >>> https://github.com/apache/cloudstack/issues >>> >>> Regards >>> Kiran >>> >>> >>> >>> >>> >>> >>> From: sai <sai.kr...@gmail.com> >>> Date: Wednesday, 9 July 2025 at 8:28 AM >>> To: users@cloudstack.apache.org <users@cloudstack.apache.org> >>> Subject: Re: Regarding PCI slots >>> Hi Rohit, >>> >>> Thanks for responding. But I am getting issue after adding three volumes >>> or >>> three networks and also this issue is seen while adding devices to uefi >>> vms >>> in kvm environment.Do you suggest anything for this. >>> >>> Regards, >>> Sai >>> >>> >>> >>> >>> On Tue, Jul 8, 2025, 7:55 PM Kiran Chavala <kiran.chav...@shapeblue.com> >>> wrote: >>> >>> > Hi Sai >>> > >>> > Cloudstack entirely depends on kvm/libvirt limitations >>> > >>> > KVM generally provides 32 PCI slots, which are used to connect several >>> > devices. >>> > >>> > >>> > >>> https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/5/html/virtualization/sect-virtualization-virtualization_limitations-kvm_limitations >>> > >>> > https://github.com/apache/cloudstack/pull/8654 >>> > >>> > >>> > Regards >>> > Kiran >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > From: sai <sai.kr...@gmail.com> >>> > Date: Tuesday, 8 July 2025 at 11:24 PM >>> > To: users@cloudstack.apache.org <users@cloudstack.apache.org> >>> > Subject: Regarding PCI slots >>> > Hi All, >>> > >>> > I have query on adding network and volume to vm, while adding those i >>> am >>> > getting no more available pci slots error from libvirt. When I see >>> > discussions in community the only option is to stop and add resources >>> and >>> > restart the vm. Is that only option we have or anything from code >>> needs to >>> > be fixed to add while vm is in running state. Else is there any PR >>> fixed >>> > for this. >>> > Thanks in advance. >>> > >>> > >>> > Regards, >>> > Sai >>> > >>> >>
