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Bug #3187

Kernel: multiple swap pager messages during hammer cleanup

Added by t_dfbsd 24 days ago. Updated 24 days ago.

Status:
New
Priority:
High
Assignee:
-
Category:
-
Target version:
-
Start date:
05/23/2019
Due date:
% Done:

0%

Estimated time:

Description

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.

History

#1 Updated by t_dfbsd 24 days ago

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

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