[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] Problem with blktap2
"Error: Device 768 (tap) could not be connected. Hotplug scripts not working." has been fix by c/s 19795. you can pull the latest code and have a try. and i also has sent a patch to fix the qemu's issue . But still not check in. Best Regards --yang -----Original Message----- From: Jun Koi [mailto:junkoi2004@xxxxxxxxx] Sent: 2009年6月19日 11:35 To: Zhang, Yang Cc: xen-devel@xxxxxxxxxxxxxxxxxxx Subject: Re: [Xen-devel] Problem with blktap2 2009/6/19 Zhang, Yang <yang.zhang@xxxxxxxxx>: > i'm not sure that since the blktap2 changes the config. I always uses the > config "tap:tapdisk:qcow2:/root/xxx". This always fine to qcow2 > I changed my disk configuration to: disk = ['tap:tapdisk:qcow2:/home/xen/img.qcow2.ubuntu904,hda,w'] But then when creating the VM, it hang up for a minute or so, and finally reported error like: "Error: Device 768 (tap) could not be connected. Hotplug scripts not working." You suggested to kill "tapdisk", but I dont see any process like "tapdisk" running in my box (only blktapctrl). Is that a problem?? Then qemu log reports error like below. I am especially concerning about the error "type tapdisk unknown...", so I am not sure that the above disk configuration (..tapdisk...) is correct. Do you have any idea? Thanks, J cat /var/log/xen/qemu-dm-ubuntu904.log domid: 2 qemu: the number of cpus is 1 config qemu network with xen bridge for tap2.0 xenbr0 Strip off blktap sub-type prefix to qcow2:/home/xen/img.qcow2.ubuntu904 (drv 'tapdisk') qemu: type (image format) 'tapdisk' unknown for vbd '/local/domain/0/backend/tap/2/768/type' or image 'qcow2:/home/xen/img.qcow2.ubuntu904' Watching /local/domain/0/device-model/2/logdirty/next-active Watching /local/domain/0/device-model/2/command qemu_map_cache_init nr_buckets = 4000 size 327680 shared page at pfn feffd buffered io page at pfn feffb Guest uuid = 7b6c05c7-1686-699b-dfdd-ef25da4d2039 Time offset set 0 populating video RAM at ff000000 mapping video RAM from ff000000 Register xen platform. Done register platform. xs_read(/vm/7b6c05c7-1686-699b-dfdd-ef25da4d2039/log-throttling): read error platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state. xs_read(/local/domain/0/device-model/2/xen_extended_power_mgmt): read error xs_read(): vncpasswd get error. /vm/7b6c05c7-1686-699b-dfdd-ef25da4d2039/vncpasswd. I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 > -----Original Message----- > From: Jun Koi [mailto:junkoi2004@xxxxxxxxx] > Sent: 2009年6月19日 11:04 > To: Zhang, Yang > Cc: xen-devel@xxxxxxxxxxxxxxxxxxx > Subject: Re: [Xen-devel] Problem with blktap2 > > 2009/6/19 Zhang, Yang <yang.zhang@xxxxxxxxx>: >> I meet this issue before. You can reboot and have a try. >> If still exist, stop xend and kill process blktapctrl and tapdisk, run make >> install again to see this issue whether still exist. >> > > hmm. then the problem will vanish for goods? i will try now, and let > you know the result. > > Could you confirm that > > disk = ['tap:aio:qcow:/home/xen/img.qcow2.ubuntu904,hda,w'] > > is a right configuration? > > Thanks a lot, > J > > > > >> -----Original Message----- >> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx >> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Jun Koi >> Sent: 2009年6月19日 10:38 >> To: xen-devel@xxxxxxxxxxxxxxxxxxx >> Subject: [Xen-devel] Problem with blktap2 >> >> Hi, >> >> I am trying to use the unstable tree (changeset: 19738) to run some old >> images. >> >> My old configuration file has: >> >> disk = ['tap:qcow2:/home/xen/img.qcow2.ubuntu904,hda,w'] >> >> I got the error like: >> >> ---- >> Using config file "./ubuntu904.cfg". >> Error: need more than 3 values to unpack >> >> I guess that I should modify the disk configuration for new blktap2, >> so I changed it to : >> >> disk = ['tap:aio:qcow:/home/xen/img.qcow2.ubuntu904,hda,w'] >> ---- >> >> but then i still got the error like below: >> >> ---- >> Using config file "./ubuntu904.cfg". >> Error: Failed to create device. >> stdout: vbd open failed: -1 >> stderr: >> Check that target "/home/xen/img.qcow2.ubuntu904" exists and that >> blktap2 driver installed in dom0. >> ---- >> >> I can confirm that I have blktap2 installed, as in >> /boot/config-2.6.18.8-xen I have: >> >> CONFIG_XEN_BLKDEV_TAP=y >> CONFIG_XEN_BLKDEV_TAP2=y >> >> So how can I fix the problem now? >> >> Thanks, >> J >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@xxxxxxxxxxxxxxxxxxx >> http://lists.xensource.com/xen-devel >> > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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