Le 2012-09-11 21:06, Tilman Schmidt a écrit : > I run VMware vSphere 4 Essentials with three almost identically > configured ESXi 4.1 hosts and a mix of 32 and 64 bit guests including > Windows 2003 and 2008 as well as CentOS 5 and 6. Recently I updated > one > of the hosts to build 800380. The new build runs Windows and CentOS 5 > VMs fine, but CentOS 6 guests won't come up. > > I tried two different CentOS 6 VMs. Both have the latest standard > kernel > (2.6.32-279.5.2.el6.x86_64). Both run perfectly fine on one of the > other > VMware hosts still running ESXi 4.1.0 build 702113. On build 800380, > both display the GRUB menu alright but freeze immediately afterwards, > emitting the message > I've found what is probably your post on VMware Communities. http://communities.vmware.com/message/2112173?tstart=0 It seems there's a second 4.1 update 3 build (811144): http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2020362 It fixes another panic, so trying this build may help. -- PR722061: When a Linux kernel crashes, the linux kexec feature is used to enable booting into a special kdump kernel and gathering crash dump files. An SMP Linux guest configured with kexec might cause the virtual machine to fail with a monitor panic during this reboot. Error messages such as the following might be logged: vcpu-0| CPU reset: soft (mode 2) vcpu-0| MONITOR PANIC: vcpu-0:VMM fault 14: src=MONITOR rip=0xfffffffffc28c30d regs=0xfffffffffc008b50 -- -- Laurent.