Machine unresponsive with cache_lock: blocked on... message

[Francois Tigeot]

On Sat, Mar 20, 2010 at 11:34:19AM -0700, Matthew Dillon wrote:
> 
> :Yet an other crash.
> :
> :Symptoms were the sames as in the previous cases.
> : 
> :System has been updated to
> :DragonFly v2.5.1.982.g5dece-DEVELOPMENT from March 15.
> :  
> :Kernel and crash dump are available here:
> :
> :http://www.wolfpond.org/crash.dfly/
> :
> :-- 
> :Francois Tigeot
> 
>     The HAMMER rebalancing code again.  It is still eating too much memory
>     in a critical path.  I'll have to think about this a bit.

This machine was really fine running the same workload with 2.4.

With 2.5, simple hammer cleanup or rsync commands are enough to make
PCs with 2GB or 3GB memory swap.

-- 
Francois Tigeot