sata problem in kvm-qemu

[Markus Pfeiffer]

Hai,

On Fri, Aug 07, 2015 at 11:22:21PM +0300, Dmitriy Tochansky wrote:
> Hi there!
> 
> Playing around dfly in qemu-kvm and see strange behavior with sata.
> I have to identical virt-machines on one hardware host. The only 
> difference is that one virtual machine emulated sata and another "uses" 
> ide disk.

No clue why the sata is misbehaving, but can't you just use the virtio
devices? They do work, I am using them right now...

Cheers,
Markus

> 
> In dmesg of "sata"-machine appears:
> ------------
> ahci0.0: CMD TIMEOUT state=5 slot=9
> 	glb-status 0x00000000
> 	cmd-reg 0xc017<CR,FR,FRE,POD,SUD,ST>
> 	port_status 0x4<DSS>
> 	sactive=00000200 active=00000000 expired=00000000
> 	   sact=00000000     ci=00000000
> 	    STS=50
> ahci0.0: disk_rw: timeout
> ahci0.0: CMD TIMEOUT state=5 slot=6
> 	glb-status 0x00000000
> 	cmd-reg 0xc017<CR,FR,FRE,POD,SUD,ST>
> 	port_status 0x4<DSS>
> 	sactive=00000040 active=00000000 expired=00000000
> 	   sact=00000000     ci=00000000
> 	    STS=50
> ----------
> and so on.
> 
> Hardware host seems to be fine - several machines work nice, some of 
> them uses "sata" but OS is linux.
> 
> toch at h2% uname -a
> DragonFly h2.tochlab.net 4.2-RELEASE DragonFly 9f8828a-RELEASE #2: Fri 
> Aug  7 23:02:06 MSK 2015     
> toch at h2.tochlab.net:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64
> 
> 
> -- 
> dtoch
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