[Xen-devel] many qemu-dm process but only a few domain exist.

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] many qemu-dm process but only a few domain exist.
From:	liu chunyang <cyliu7@xxxxxxxxx>
Date:	Mon, 20 Oct 2008 12:14:15 +0800
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Hi,

I have a non-VT enabled machine and some domains run on it. After
running various domain operations(shutdown, reboot, resume, suspend ...)
 for 3 days. I find that there are many qemu-dm vnc process, much more
than the domain processes.

top output:
11990 root      15   0 73524 4440 1044 S    0  0.9   0:00.02 qemu-dm

11996 root      15   0 73524 4440 1044 S    0  0.9   0:00.07 qemu-dm

13894 root      17   0 73524 1044 1040 S    0  0.2   0:00.01 qemu-dm

14030 root      15   0 73520 4436 1044 S    0  0.9   0:00.04 qemu-dm

14083 root      15   0 73520 4440 1044 S    0  0.9   0:00.04 qemu-dm

14269 root      15   0 73520 4440 1044 S    0  0.9   0:00.02 qemu-dm

14913 root      15   0 73524 4440 1044 S    0  0.9   0:00.04 qemu-dm

14999 root      15   0 73524 4440 1044 S    0  0.9   0:00.03 qemu-dm

15280 root      15   0 73520 1044 1040 S    0  0.2   0:00.02 qemu-dm

15583 root      15   0 63280 1044 1040 S    0  0.2   0:00.01 qemu-dm

16766 root      18   0 73520 1044 1040 S    0  0.2   0:00.01 qemu-dm

17439 root      15   0 73520 4436 1044 S    0  0.9   0:00.04 qemu-dm

17738 root      15   0 73524 4444 1044 S    0  0.9   0:00.04 qemu-dm

17941 root      15   0 73520 4436 1044 S    0  0.9   0:00.02 qemu-dm

18085 root      15   0 66904 5512 1044 S    0  1.2   0:00.09 qemu-dm


messages from qemu-dm log:
qemu-dm.22258.log
domid: 326
Watching /local/domain/326/logdirty/next-active
xs_read(): vncpasswd get error.
/vm/28ff12d4-ab5c-4775-9caa-1482e48e2b1e/vncpasswd.
Switching to old protocol

qemu-dm.22629.log
domid: 362
xs_read(): vncpasswd get error.
/vm/28ff12d4-ab5c-4775-9caa-1482e48e2b1e/vncpasswd.
Sticking to new protocol
Fudging state to 3
Failure while dispatching store: -2
~

what the problem? It looks like an error occured when xen try to get
vncpasswd. Where this vncpasswd stored?

thanks!

Chunyang

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[Xen-devel] many qemu-dm process but only a few domain exist.