Bug#851119: memcg causing freezes on backports kernel

2017-04-15 Thread Harald Dunkel
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi Laurence, On 04/15/17 18:02, Laurence Parry wrote: > memory cgroups decreased the stability of 4.8, regardless of whether they > were actively being used; we were not actively using them, but still > experienced lockups. Disabling them on the k

Bug#851119: memcg causing freezes on backports kernel

2017-04-15 Thread Laurence Parry
memory cgroups decreased the stability of 4.8, regardless of whether they were actively being used; we were not actively using them, but still experienced lockups. Disabling them on the kernel command line fixed it. I'm not sure if it's been fixed in 4.9 because I removed memcgroups them from o

Bug#851119: memcg causing freezes on backports kernel

2017-01-30 Thread Harald Dunkel
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Unfortunately some of the hosts affected most by this problem are LXC servers. They rely upon "cgroup_enable=memory swapaccount=1" on the kernel command line, making sure that I can start containers with memory restrictions. I have to make sure that

Bug#851119: memcg causing freezes on backports kernel

2017-01-12 Thread Laurence Parry
This appears to be due to the cgroups memory controller. I've had had good experience with adding cgroup_disable=memory on the kernel boot line. You can also compile your own kernel without the the memory controller, which I recommend if you have the capability, as it cuts out a non-trivial amo