1. Zimbra 5.0.9
2. Debian etch on hardware node (2 Gb memory) with kernel 2.6.18-028stab057.2
3. ubuntu-8.04-x86_64 on container

Installation process ends with OOM on different stages of services initialization.

Sep 17 17:32:38 krypton kernel: [ 85.615885] Call Trace:
Sep 17 17:32:38 krypton kernel: [ 85.616100] [] kobject_add+0x183/0x1a8
Sep 17 17:32:38 krypton kernel: [ 85.616215] [] kobject_register+0x20/0x3c
Sep 17 17:32:38 krypton kernel: [ 85.616330] [] load_module+0x170e/0x1a9b
Sep 17 17:32:38 krypton kernel: [ 85.616448] [] release_pages+0x17c/0x195
Sep 17 17:32:38 krypton kernel: [ 85.616566] [] pci_bus_read_config_byte+0x0/0x74
Sep 17 17:32:38 krypton kernel: [ 85.616678] [] autoremove_wake_function+0x0/0x3c
Sep 17 17:32:38 krypton kernel: [ 85.616790] [] __up_write+0x1d/0x11a
Sep 17 17:32:38 krypton kernel: [ 85.616902] [] sys_init_module+0x51/0x210
Sep 17 17:32:38 krypton kernel: [ 85.617014] [] system_call+0x7e/0x83
Sep 17 17:32:38 krypton kernel: [ 85.617124]


Sep 17 17:28:37 krypton kernel: [ 1247.907219] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.907332] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.907443] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.907561] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.907674] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.907784] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.907898] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.909482] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.909591] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.909706] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.909816] IOAT: Channel halted, chanerr = 2002
Sep 17 17:28:37 krypton kernel: [ 1247.909928] IOAT: Channel halted, chanerr = 2002

Userbeancounters returns all zeroes in failcounts. Config for VE is almost unlimited. 90% of all the HN resources is dedicated to VE in which zimbra is installing.
Top shows that all the memory is eated by java process and after that kernel catch OOM, java zombies and VE stops responding.

Installation and working of Zimbra suite is successful when it is installing on hardware node itself with this kernel.
We tried different OpenVZ kernels (4 or 5) with no luck. It seems that it is Openvz malfunction.

Any hints are welcome.