[Xen-users] apparently random lockups

["Eric S. Johansson" <esj@xxxxxxxxxx>]

I'm using xen unstable taken from hg repository a couple of days before 
3.0 release (how's that for timing).
I've been struggling with a series of random lockups on a domU I'm using 
as a mailserver.  the initial problems were that any significant 
activity either on the mail server or the IMAP server would cause the 
domU to go dead with absolute no information in the log files or console.
At first it appeared to something filesystem related so I converted 
everything to ext3.  then I discovered that if I had accidentally left 
the domU /home filesystem mounted, the load average on the domU machine 
would climb very rapidly.
making sure everything is clean, setting the virtual CPUs down to one, 
upgrading allocated memory to 256 MB, things seemed okay after 
exercising the system fairly heavily with a recursive grep through a 
large set of files.
then the problems with e-mail access causing lockups started up again. 
coincidentally, e-mail in the inbox has vanished from view while still 
remaining in the filesystem.  This may or may not be related but it's 
another data point.
quite frankly, I at my wits end.  any ideas?

---eric



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