Issues with user.sub files - subscription files hangs system.

Jens mueller at
Wed Sep 17 04:34:59 EDT 2008

Adam D schrieb:
> Adam D wrote:
>> I have noticed this error in the log:
>> Sep 12 18:57:44 vts-post cyrus/imap[19629]: IOERROR: locking
>> /var/lib/cyrus/domain/W/domain1/user/A/userbox.sub: Interrupted system call
>> Soon afterwards I notice imapd runs at 99.8 % and I can not kill the
>> process.  It looks like the file is locked and can't be written to?  I
>> saw another file called userbox.sub.NEW but even that files can't be
>> read.  When I attempt the terminal freezes.  I also noticed the system
>> can't be rebooted as well.  I don't know what could be causing this. 
>> Does anyone have any incite? 
> We are using Ubuntu 8.04 on this particular amd 64 box running virtually
> within xen.

I had the same problem with Ubuntu 7.10 running in VMWare. I was not
able to fix it. My solution was a system-upgrade to 8.04. The problem
disappeared. I just hope it does not appear again. Some other users
discovered the same problem and were able to solve it with an upgrade, too.

Sorry not to help you,

"The only proof that intelligent life exists in the universe
 is that it hasn't tried to contact us yet."     -    Calvin

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