Issue #3187 has been updated by t_dfbsd.

hammer cleanup is unusable until this gets fixed. I've disabled the script in 
periodic daily for now.

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Bug #3187: Kernel: multiple swap pager messages during hammer cleanup
http://bugs.dragonflybsd.org/issues/3187#change-13644

* Author: t_dfbsd
* Status: New
* Priority: High
* Assignee: 
* Category: 
* Target version: 
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On master, commit a19800f223, running hammer cleanup causes dozens of messages 
like this and causes the machine to become inaccessible by network services, 
SSH in particular, although ping still works:

May 23 19:20:14 <kern.crit> boojum kernel: swap_pager: indefinite wait buffer:  
bp 0xfffff800735334d8 offset: 5092941824, size: 4096  m=0xfffff8005fee7580 
busy=e0000000 flags=00004080

This behavior was also observed at commit d29a2431b3, so whatever is causing it 
is probably earlier than that. When I ran hammer cleanup today, the last thing 
I noticed running before my SSH connection died was hammer reblock-btree. This 
was on a 8TB encrypted volume.



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