On 05/04/20 22:46, Suresh Gumpula wrote: > > > From: Suresh Gumpula <suresh.gumpula@xxxxxxxxxxx> > Date: Sunday, April 5, 2020 at 1:40 PM > To: "kvm@xxxxxxxxxxxxxxx" <kvm@xxxxxxxxxxxxxxx>, "pbonzini@xxxxxxxxxx" <pbonzini@xxxxxxxxxx> > Subject: Re: ata driver loading hang on qemu/kvm > > The guest kernel(not a nested guest) boot iso is hanging with following errors. > [ 1.414035] Write protecting the kernel read-only data: 6144k > [ 1.418006] Freeing unused kernel memory: 1080K > [ 1.423033] Freeing unused kernel memory: 1004K > [ 1.466783] scsi host0: ata_piix > [ 1.469539] scsi host1: ata_piix > [ 1.472039] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc300 irq 14 > [ 1.475740] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc308 irq 15 > > > We have enabled nested host, but not running any nested guests. So it’s a regular guest VM on a host. > Can someone please guide me what could be wrong here. Is it a known issue in the kvm module or qemu emulation of IDE/CDROM controller? No, it's the first time I see this reported. Please try with a newer QEMU version. Paolo
