[pve-devel] [PATCH kernel] d/rules: enable CONFIG_MEMCG_V1 needed for legacy containers

[Fiona Ebner]

As reported in the community forum [0], containers requiring cgroup v1
would not start anymore, even when systemd.unified_cgroup_hierarchy=0
was set on the kernel commandline. The error message would be:

> cgfsng_setup_limits_legacy: 3442 No such file or directory - Failed to set "memory.limit_in_bytes" to "536870912"

Kernel commit e93d4166b40a ("mm: memcg: put cgroup v1-specific code
under a config option") made it necessary to explicitly enable the new
associated Kconfig flag.

[0]: https://forum.proxmox.com/threads/156830/

Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
 debian/rules | 1 +
 1 file changed, 1 insertion(+)

diff --git a/debian/rules b/debian/rules
index f19a5b8..e1444b7 100755
--- a/debian/rules
+++ b/debian/rules
@@ -65,6 +65,7 @@ PMX_CONFIG_OPTS= \
 -e CONFIG_MODULE_SIG_SHA512 \
 -d CONFIG_MEMCG_DISABLED \
 -e CONFIG_MEMCG_SWAP_ENABLED \
+-e CONFIG_MEMCG_V1 \
 -e CONFIG_HYPERV \
 -m CONFIG_VFIO_IOMMU_TYPE1 \
 -e CONFIG_VFIO_VIRQFD \
-- 
2.39.5