Bug #7238
zvol_swap/setup fails due to memory usage
100%
Description
zvol/zvol_swap/setup can fail because too much memory is used:
NOTE: Executing: swap -d /dev/zvol/dsk/rpool/swap
NOTE: Executing: swap -d /dev/zvol/dsk/rpool/swap1
Unable to delete swap device /dev/zvol/dsk/rpool/swap1 because of insufficient RAM
State of the system:
$ swap -l
swapfile dev swaplo blocks free
/dev/zvol/dsk/rpool/swap 65,2 8 4194296 4194296
$ swap -s
total: 812132k bytes allocated + 30316k reserved = 842448k used, 2049048k available
$ sudo swap -d /dev/zvol/dsk/rpool/swap
/dev/zvol/dsk/rpool/swap: Not enough space
To reduce memory usage, I did (in order of decreasing utility):
$ sudo pkill fmd
(fmd will be restarted but with less memory usage – 400MB vs ~30MB)
$ sudo svcadm disable postgres
$ sudo svcadm disable misc
$ sudo svcadm disable stmf-logging
After this I see:
$ swap -s
total: 385356k bytes allocated + 30088k reserved = 415444k used, 2657196k available
And am then able to delete the swap device:
$ sudo swap -d /dev/zvol/dsk/rpool/swap
Would recommend changing the setup to restart fmd from zvol_swap/setup.
Updated by Daniel Kimmel over 4 years ago
Because of additional failures from zvol_swap/setup even after the original change, we've decided to disable this suite entirely until we are able to dedicate resources to solving the full issue.
Updated by Electric Monk over 4 years ago
- Status changed from New to Closed
- % Done changed from 0 to 100
git commit 05e61955a0df3b1f5fea8afab6b41bcb054f00f4
commit 05e61955a0df3b1f5fea8afab6b41bcb054f00f4
Author: John Wren Kennedy <john.kennedy@delphix.com>
Date: 2016-09-07T03:19:09.000Z
7238 zvol_swap/setup fails due to memory usage
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Will Guyette <will.guyette@delphix.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>