Richard Lowe wrote:
Patrick Petit wrote:
Hi,
Some additional elements. Irrespective of the SCSI error reported
earlier, I have established that Solaris dom0 hangs anyway when a domU
is booted from a disk image located on an emulated ZFS volume. Has
this been also observed by other members of the community? Is there a
known explanation to this problem? What would be the troubleshooting
steps?
The hang I see isn't when booting on a zvol. I see hangs,
intermittently when using a zvol for anything xen related.
The first I saw was while making the proto on a zvol, the second was
while creating a domU on a zvol (not booting it, just the vbdcfg).
I've been utterly unable to get any useful information out of the
machine at that point. I don't drop to the debugger, I *can't* drop to
the debugger, and the machine doesn't respond in any way (even to 3
C-a's, though that maybe a problem on my end).
As I've said elsewhere, I'm still trying to reproduce this in such a way
I can get some kind of information about it (and failing).
I'm not sure what you could do to troubleshoot it.
Do you/can you get into kmdb when this happens? Does sending 3
Control-a's to the console do anything?
Very interesting I given what I posted here yesterday. I was just using
a ZFS file system to store the file backed VBD not a zvol.
The symptoms seem very similar. Given that the Xen dom0 bits are snv_41
based I wonder if the ZFS issues are fixed in a later build.
--
Darren J Moffat
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