swap_pager_getswapspace(32) Error

[wishmaster]

 --- Original message ---
 From: "Eugene Grosbein" <eugen at grosbein.net>
 Date: 9 January 2018, 12:31:45
  


> 09.01.2018 16:30, wishmaster wrote:
> 
> >>> Jan 5 09:49:40 server kernel: swap_pager_getswapspace(32): failed
> >>> Jan 5 09:49:40 server kernel: swap_pager_getswapspace(24): failed
> >>> Jan 5 09:49:40 server kernel: swap_pager_getswapspace(18): failed
> 
> [skip]
> 
> > # swapinfo
> > Device 1K-blocks Used Avail Capacity
> > /dev/mirror/swap 33554428 0 33554428 0%
> > 
> > The Capacity parameter of swapinfo is <= 2...3% even though swap_pager_getswapspace(32) is occurred.
> 
> Do you have any real problem with some running service like crashing/restarting processes?
> 
> 

I think, may be this is something ZFS-related? See ARC cache below.

last pid: 37336;  load averages:  0.39,  0.34,  0.28                                                                                                                                                                 up 1+01:08:28  13:19:14
490 processes: 5 running, 462 sleeping, 23 waiting
CPU 0:  0.8% user,  0.0% nice,  0.4% system,  2.4% interrupt, 96.5% idle
CPU 1:  3.9% user,  0.0% nice,  1.2% system,  0.0% interrupt, 94.9% idle
CPU 2:  0.8% user,  0.0% nice,  1.6% system,  1.2% interrupt, 96.5% idle
CPU 3:  0.8% user,  0.0% nice,  0.4% system,  2.8% interrupt, 96.1% idle
Mem: 42M Active, 1186M Inact, 14G Wired, 495M Free
ARC: 12G Total, 610M MFU, 11G MRU, 32K Anon, 44M Header, 467M Other
     11G Compressed, 12G Uncompressed, 1.07:1 Ratio
Swap: 32G Total, 32G Free

See ARC cache.