Hi,
On 19/07/17 00:39, Digimer wrote:
On 2017-07-18 07:25 PM, Kristián Feldsam wrote:
Hello, I see today GFS2 errors in log and nothing about that is on net,
so I writing to this mailing list.
node2 19.07.2017 01:11:55 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-4549568322848002755
node2 19.07.2017 01:10:56 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-8191295421473926116
node2 19.07.2017 01:10:48 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-8225402411152149004
node2 19.07.2017 01:10:47 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-8230186816585019317
node2 19.07.2017 01:10:45 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-8242007238441787628
node2 19.07.2017 01:10:39 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-8250926852732428536
node3 19.07.2017 00:16:02 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete
nr=-5150933278940354602
node3 19.07.2017 00:16:02 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete nr=-64
node3 19.07.2017 00:16:02 kernel kern err vmscan: shrink_slab:
gfs2_glock_shrink_scan+0x0/0x2f0 [gfs2] negative objects to delete nr=-64
Would somebody explain this errors? cluster is looks like working
normally. I enabled vm.zone_reclaim_mode = 1 on nodes...
Thank you!
Please post this to the Clusterlabs - Users list. This ML is deprecated.
cluster-devel is the right list for GFS2 issues. This looks like a bug
to me, since the object count should never be negative. The glock
shrinker is not (yet) zone aware, although the quota shrinker is. Not
sure if that is related, but perhaps.... certainly something we'd like
to investigate further. That said the messages in themselves are
harmless, but it will likely indicate a less than optimal use of memory.
If there are any details that can be shared about the use case, and how
to reproduce that will be very helpful for us to know. Also what kernel
version was this?
Steve.
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