We have recently been having problems where servers eventually freeze up and hang due to the nonpaged pool becoming exhausted.
We narrowed this down to a memory leak with the SND1 tag.
Supposedly it was fixed in RU2 which is why i was surprised when support advised that it should be fixed in RU4.
We were originally running 12.1 RU1, we updated to RU2 which didn't help.
Support advised us to upgrade to 12.1 RU4 however we're still seeing tag SND1 has constant growth when using poolmon.
the "diff" column (allocs - frees) keeps growing.
The bytes usage is currently around 420MB after the server has been running for around 15 hours since the last reboot.
I was wondering if anyone else could confirm if the nonpaged pool leak has been fixed for them when upgrading.
thanks.