Description of problem: The following Message is flooding the console on dom0 and all domU Apr 2 18:30:49 xenrz01 kernel: Timer ISR/0: Time went backwards: delta=-1032764 cpu_delta=2967236 shadow=73977247854081 off=955113729 processed=73978204000000 cpu_processed=73978200000000 Apr 2 18:30:49 xenrz01 kernel: 0: 73978200000000 Apr 2 18:30:49 xenrz01 kernel: 1: 73978204000000 Version-Release number of selected component (if applicable): kernel-xen0-2.6.16-1.2080_FC5 kernel-xen0-2.6.15-1.2054_FC5 How reproducible: 100% on Athlon X2 systems with Tyan K8E Board. Steps to Reproduce: 1. install fedora Core 5 with xen on a Athlon X2 System ( dual core ) with a Tyan K8E Board. 2. Wait a few seconds Actual results: /var/log/messages and the console of all domains (dom0 & domU ) get flooded with this message every few seconds. Expected results: The system should simply work and don't flood /var and console. Additional info: A vanilla 2.6.16 kernel from kernel.org without xen doesn't show up this messages.
I started seeing this as well on an SMP IBM 330, kernel 2.6.16-1.2133_FC5xen0 and vmlinuz-2.6.17-1.2139_FC5xenU, I was not seeing it with 2.6.16-1.2122_FC5xen0. http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=608 http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=645
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This report targets FC5, which is now end-of-life. Please re-test against Fedora 7 or later, and if the issue persists, open a new bug. Thanks