Re: [Qemu-devel] [ANNOUNCE][Call-For-Testing] Release 0.12.0-rc1 of QEMU

[Gerd Hoffmann]

On 12/09/09 17:56, Daniel P. Berrange wrote:
> There's a small bug in SCSI drive hotplug where QEMU is not assigning
> unique block device names when you leave the name unspecified
>
> $ /home/berrange/usr/qemu-0.12/bin/qemu -vnc :1 -monitor stdio -device lsi
> QEMU 0.11.91 monitor - type 'help' for more information
> (qemu) drive_add 0:0:4  file=/home/berrange/mcdboot.img,if=scsi
> OK bus 0, unit 0
> (qemu) drive_add 0:0:4  file=/home/berrange/mcdboot.img,if=scsi
> OK bus 0, unit 1
> (qemu) drive_add 0:0:4  file=/home/berrange/mcdboot.img,if=scsi
> OK bus 0, unit 2
> (qemu) drive_add 0:0:4  file=/home/berrange/mcdboot.img,if=scsi
> OK bus 0, unit 3
> (qemu) info block
> ide1-cd0: type=cdrom removable=1 locked=0 [not inserted]
> floppy0: type=floppy removable=1 locked=0 [not inserted]
> sd0: type=floppy removable=1 locked=0 [not inserted]
> scsi0-hd0: type=hd removable=0 file=/home/berrange/mcdboot.img ro=1 drv=raw 
> encrypted=0
> scsi0-hd0: type=hd removable=0 file=/home/berrange/mcdboot.img ro=1 drv=raw 
> encrypted=0
> scsi0-hd0: type=hd removable=0 file=/home/berrange/mcdboot.img ro=1 drv=raw 
> encrypted=0
> scsi0-hd0: type=hd removable=0 file=/home/berrange/mcdboot.img ro=1 drv=raw 
> encrypted=0
> (qemu)
>
> Notice they are all 'scsi0-hd0', instead of scsi0-hd1, scsi0-hd2, etc

Fix attached.

Note that the whole auto-naming only works reliable if you limit 
yourself to a single scsi bus (in any qemu version out there).  I 
strongly recommend to simply name the drives yourself using id=<name>. 
Works in 0.12 and IIRC in 0.11 too.

cheers,
  Gerd

0001-scsi-drive-hotplug.patch
Description: Text document