Hi,did you try to snapshot your /var? Because to me it seemms like the current lvm2 configurations tries to use /var/lock/lvm for its locking files, and this leads to a deadlock.
So my personal solution is, to use a tmpfs for /var/lock/lvm.
Greetings
Stefan
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http://www.dreamind.de/
Oroborus and Debian GNU/Linux Developer.
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