Hi Gleb Thank you, for fast reply. On Thu, 18 Jun 2009 14:37:47 +0300, Gleb Natapov wrote > You host cpu does not support NMI injection in VMX (your Intel processor > is too old). I can't tell for sure if this is what causes w2k8 to reboot > itself, but this is possible. > It's a system with 2x L5320 (Quad Core Xeon). (see below) The reboot it's randomly, sometime during working-hours, but sometimes during the night, when nobody is logged in. Sometimes the System is up over a week, sometimes we have a reboot twice a day. > Does w2k8 has some kind of NMI watchdog? Don't know what it is, so i don't know.. if it has any. Thanks Andy -- cat /proc/cpuinfo: processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU L5320 @ 1.86GHz stepping : 7 cpu MHz : 1866.732 cache size : 4096 KB physical id : 1 siblings : 4 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant _tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx tm2 ssse3 cx16 xtpr d ca lahf_lm bogomips : 3733.58 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html