Re: Deadlock using snapshots

2002-06-03 Thread Hiten Pandya

--- Peter Jeremy [EMAIL PROTECTED] wrote:
 I decided to do some experimenting with snapshots and managed to
 deadlock my system.  (Basically, I had a cron job that was trying
 to snapshot all my filesystems every 5 minutes - with a view to
 being able to undo any accidents I might make).  I'd reached
 about 5 snapshots per filesystem when it hung.
 
 I've found a few other anomolies with snapshots, but deadlocks are
 undesirable :-(.
 
 The system was still running normally, but nothing could access the
 filesystem.  Breaking into 'ps' showed that the deadlocked processes
 were all waiting on inode.  I've got a crash dump but would like
 some suggestions on where to start looking.
 
 The system is -CURRENT from 7th May.

Is it possible to produce a crash dump?  It might provide us with additional
information on where it actually deadlocks.

Hiten.
[EMAIL PROTECTED]

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Deadlock using snapshots

2002-06-02 Thread Peter Jeremy

I decided to do some experimenting with snapshots and managed to
deadlock my system.  (Basically, I had a cron job that was trying
to snapshot all my filesystems every 5 minutes - with a view to
being able to undo any accidents I might make).  I'd reached
about 5 snapshots per filesystem when it hung.

I've found a few other anomolies with snapshots, but deadlocks are
undesirable :-(.

The system was still running normally, but nothing could access the
filesystem.  Breaking into 'ps' showed that the deadlocked processes
were all waiting on inode.  I've got a crash dump but would like
some suggestions on where to start looking.

The system is -CURRENT from 7th May.

Peter

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